Skip to main content

Hamilton Insurance Group, Ltd.

For the period ended Dec 31, 2025. Filed Feb 25, 2026.

View on SEC.gov

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 25, 2026

HG$38.82+3.9%Stored close · as of Nov 10, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits
Contents

Notes to the Consolidated Financial Statements Note 1. Organization

  1. Organization

Hamilton Insurance Group, Ltd. ("Hamilton Group", the "Group" or the "Company"), the ultimate group holding company, was incorporated on September 4, 2013, under the laws of Bermuda. On November 14, 2023, the Company consummated an initial public offering ("IPO") of its Class B common shares, which are listed on the New York Stock Exchange ("NYSE").

Our Bermuda operations are led by Hamilton Re, Ltd. ("Hamilton Re"), a registered Class 4 insurer incorporated in Bermuda. Hamilton Re writes property, casualty and specialty insurance and reinsurance on a global basis.

Hamilton Re US is a tax partnership that was formed pursuant to an arrangement between Hamilton Re and its Bermuda-incorporated affiliate, Hamilton ILS Holdings Limited. The tax partnership is treated as a U.S. corporation for U.S. tax purposes and is registered with the U.S. Internal Revenue Service, such that underwriting and investment income derived from capital allocated to Hamilton Re US are subject to U.S. taxation.

Ada Capital Management Limited ("ACML"), a wholly owned insurance agent incorporated and regulated in Bermuda, is authorized to underwrite on behalf of Ada Re, Ltd. ("Ada Re").

Our London operations are comprised of Hamilton Managing Agency Limited ("HMA"), a Lloyd’s managing agency, which manages our wholly aligned Syndicate 4000. HMA also managed a third-party funded Lloyd’s syndicate until July 1, 2025. Syndicate 4000 operates in the Lloyd’s market and underwrites property, casualty and specialty insurance and reinsurance business on a subscription basis.

Our Dublin operations are comprised of Hamilton Insurance Designated Activity Company ("HIDAC"), a Dublin-based insurer with a U.K. branch and extensive licensing in the United States, including excess and surplus lines and reinsurance in all 50 states.

Hamilton Managing General Agency Americas LLC ("HMGA Americas") is licensed throughout the United States and underwrites on behalf of the Group's London, Dublin and Bermuda operations solely in respect of Hamilton Re US, providing access from the U.S. to the Lloyd's market, the Group's rated Irish carrier and the Group's Bermuda balance sheet, respectively.

Hamilton Select Insurance Inc. ("Hamilton Select") is a U.S. domestic excess and surplus lines carrier incorporated in Delaware and authorized to write excess and surplus business in all 50 states.

Two Sigma Hamilton Fund, LLC ("TS Hamilton Fund"), is a Delaware limited liability company. In 2013, Hamilton Re entered into a limited liability company agreement with TS Hamilton Fund and Two Sigma Principals, LLC (the "Managing Member") as the managing member of TS Hamilton Fund. Hamilton Re has committed to an investment in TS Hamilton Fund in an amount up to the lesser of (i) $1.8 billion or (ii)60% of Hamilton Group’s net tangible assets. TS Hamilton Fund has engaged Two Sigma Investments, LP ("Two Sigma"), a related party Delaware limited partnership, to serve as its investment manager. Two Sigma is a United States Securities and Exchange Commission registered investment adviser specializing in quantitative analysis (see Note 3, Investments for further details).

Unconsolidated Related Parties

Ada Re is a special purpose insurer funded by investors and formed to provide fully collateralized reinsurance and retrocession to both Hamilton Group and third party cedants.

Easton Re has issued an industry loss index-triggered catastrophe bond that provides the Company's operating platforms with multi-year risk transfer capacity to protect against named storm risk in the United States and earthquake risk in the United States and Canada. See Note 7, Reinsurance for further details.

  1. Summary of Significant Accounting Policies

a. Basis of Presentation

These audited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") and include the accounts of Hamilton Group, Hamilton Re, Hamilton U.K. Holdings Limited, Hamilton Select, HMGA Americas, ACML, and TS Hamilton Fund (collectively the "Company"). All significant intercompany transactions and balances have been eliminated on consolidation. Certain comparative information has been reclassified to conform to the current year presentation.

b. Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The major estimates recorded in the Company’s financial statements include, but are not limited to, the reserve for losses and loss adjustment expenses, premiums written and earned, ceded reinsurance, unpaid losses and loss adjustment expenses recoverable and the fair value of investments.

c. Fair Value Measurements

Details on assets and liabilities that have been included under the requirements of authoritative guidance on fair value measurements to illustrate the bases for determining the fair values of these items held by the Company are included in Note 4, Fair Value and each respective section of this significant accounting policies note.

Where the Company has elected to account for certain of its assets and liabilities at fair value in accordance with FASB ASC Topic Fair Value Measurements and Disclosures, the Company recognizes the change in unrealized gains and losses arising from changes in fair value in its statements of operations. See Note 2j, Investments for further detail.

d. Premiums and Acquisition Costs

Premiums written and ceded on a losses occurring basis are earned pro-rata over the terms of the related contracts and policies. For contracts written on a risks-attaching basis, premiums written and ceded are earned over the terms of the underlying contracts and policies. Premiums written and ceded include estimates based on information received from insureds, brokers and ceding companies, and any subsequent differences arising on such estimates are recorded in the periods in which they are determined. The portion of the premiums written and ceded applicable to the unexpired terms of the underlying contracts and policies are recorded as unearned premiums and prepaid reinsurance premiums, respectively. Amounts are computed by pro-rata methods based on statistical data or reports received from insureds, brokers or ceding companies. Reinstatement premiums are estimated after the occurrence of a significant loss and are recorded in accordance with the contract terms based upon paid losses and case reserves. Reinstatement premiums are earned when written.

Acquisition expenses are costs that vary with, and are directly related to, the successful acquisition of new or renewal business and consist principally of commissions, brokerage and premium tax expenses. These costs are deferred and amortized over the periods in which the related premiums are earned. Deferred acquisition costs are limited to their estimated realizable value based on the related unearned premiums. Anticipated losses and loss adjustment expenses, based on historical and current experience, and anticipated net investment income related to the premiums are considered in determining the recoverability of deferred acquisition costs.

e. Concentrations of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of fixed maturity and short-term investments, cash and cash equivalents, premiums receivable and reinsurance balances recoverable. Cash and cash equivalents are held with financial institutions of high credit quality, and fixed maturity and short-term investments primarily consist of U.S. government, U.S. government agencies, and high credit quality issuers of corporate and debt securities. The Company limits the amount of credit exposure with any one financial institution or issuer and believe that no significant concentration of credit risk exists with respect to cash and investments.

f. Reinsurance

In the normal course of business, the Company seeks to reduce the potential amount of loss arising from claims events by reinsuring certain levels of risk with other reinsurers. Ceded reinsurance contracts do not relieve the Company of its primary obligation to policyholders. Prepaid reinsurance represents the portion of premiums ceded to reinsurers applicable to the unexpired coverage terms of the reinsurance contracts in place. Amounts recoverable from reinsurers are estimated based on the terms and conditions of the reinsurance contracts, in a manner consistent with the underlying liabilities insured or reinsured by the Company. If the Company determines that adjustments to earlier estimates are appropriate, such adjustments are recorded in the periods in which they are determined. Amounts recoverable from reinsurers are recorded net of an allowance for expected credit losses. See Note 7, Reinsurance, for further details.

Retroactive reinsurance agreements are reinsurance agreements under which a reinsurer agrees to reimburse the Company as a result of past insurable events. For these agreements, the excess of the amounts ultimately collectible under the agreement over the consideration paid is recognized as a deferred gain liability which is amortized into income as a reduction of losses and loss adjustment expenses over the estimated ceded reserve settlement period. The amount of the deferred gain is recalculated each reporting period based on actual loss payments and updated estimates of ultimate losses. If cumulative adverse development occurs subsequent to the signing of a retroactive reinsurance agreement, it may result in significant losses from operations until periods when the recalculated deferred gain is recognized as a benefit to earnings. If the consideration paid for a retroactive reinsurance agreement exceeds the ultimate losses collectible under the agreement, the net loss on the retroactive reinsurance agreement is immediately recognized in income.

g. Credit Loss Provisions

The Company routinely evaluates its premiums receivable and paid and unpaid losses recoverable for potential specific credit or collection issues that might indicate an impairment. Premiums receivable and paid and unpaid losses recoverable are presented net of the resulting credit provisions, with the corresponding debits offset against gross premiums written or losses and loss adjustment expenses, as applicable, in the consolidated statement of operations and comprehensive income (loss).

The method for calculating the best estimate of losses depends on the size, nature, and risk characteristics of the related underwriting receivable. Such an estimate requires consideration of historical loss experience, current economic conditions, and judgments about the probable effects of relevant observable data, including historical information, counterparty financial strength ratings and the extent of collateralization. The underlying assumptions, estimates and assessments are updated periodically to reflect the Company's view of current conditions. Changes in estimates may significantly affect the allowance and provision for losses. It is possible that the Company's actual credit loss experience will differ materially from current estimates. Adjustments, if any, are recorded in earnings in the periods in which they become known. See Note 7, Reinsurance, for further details.

h. Reserve for Losses and Loss Adjustment Expenses

The reserve for losses and loss adjustment expenses includes reserves for unpaid reported losses and for losses incurred but not reported ("IBNR"). The reserve for unpaid reported losses and loss adjustment expenses is established by management based on reports from insureds, brokers and ceding companies and represents the estimated ultimate cost of events or conditions that have been reported to or specifically identified by the Company. The reserve for IBNR losses and loss adjustment expenses is established by management based on estimates of ultimate losses and loss adjustment expenses.

Inherent in the estimates of ultimate losses and loss adjustment expenses are expected trends in claim severity and frequency, the expected duration of the respective claims development period, inadequacies in the data provided by industry participants, the potential for further reporting lags, significant uncertainty as it relates to legal issues under the relevant terms of insurance and reinsurance contracts, and other factors, which may vary significantly as claims are settled. Accordingly, ultimate losses and loss adjustment expenses may differ materially from the amounts recorded in the financial statements. These estimates are reviewed regularly and, as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are recorded in earnings in the periods in which they become known. See Note 8, Reserve for Losses and Loss Adjustment Expenses, for further details.

i. Cash and Cash Equivalents and Restricted Cash and Cash Equivalents

Cash and cash equivalents include money market funds and highly liquid short-term deposits and securities with maturities of 90 days or less at the time of purchase. Money market funds are classified as Level 1 as these instruments are considered actively traded; however, certificates of deposit are classified as Level 2.

Restricted cash and cash equivalents typically relates to funds held in trust supporting a portion of the Lloyd's capital requirements and other underwriting obligations. See Note 3, Investments, for further details.

j. Investments

Investments - Trading

The Company elects the fair value option for its fixed maturity investments, short-term investments and certain other invested assets (excluding those that are accounted for using specialized investment company accounting as noted below). All changes in the fair value of investments are recorded within net realized and unrealized gains (losses) on investments in the consolidated statements of operations. See Note 4, Fair Value, for further details.

All investment transactions are recorded on a trade-date basis and are valued using pricing data received from third parties. Realized gains or losses on sales of investments are determined on a weighted average basis. Investment income is recognized when earned and includes interest and dividend income, recorded as of the ex-dividend date, together with the amortization of premium and discount on fixed maturities and short-term investments computed using the effective yield method. Net investment income includes related investment expenses.

Short-Term Investments

Short-term investments comprise securities with a maturity greater than three months but less than one year from the date of purchase.

Investments in Two Sigma Funds

TS Hamilton Fund invests in Two Sigma Funds ("Two Sigma Funds"), which are stated at their estimated fair values, which generally represent the Company’s proportionate interest in the members’ equity of the Two Sigma Funds as reported by the respective funds based on the net asset value ("NAV") provided by the fund administrator. The Company accounts for its investment in Two Sigma Funds under the variable interest model at NAV as a practical expedient for fair value in the consolidated balance sheets. Increases or decreases in such fair values are recorded within net realized and unrealized gains (losses) on investments in the consolidated statements of operations. Realized gains or losses upon any withdrawals of investments in the Two Sigma Funds are calculated using the weighted average method. The assets and liabilities of the Two Sigma Funds are recorded at fair value, or at amounts approximating fair value. The Company records contributions and withdrawals related to its investments in the Two Sigma Funds on the transaction date.

The specialized investment company accounting, as described above, is retained in the Company’s audited consolidated financial statements upon consolidation of TS Hamilton Fund.

k. Foreign Exchange

Monetary assets and liabilities denominated in foreign currencies are revalued into the functional currency of each entity using the exchange rates in effect at the balance sheet date, with the resulting foreign exchange gains and losses included in earnings. Revenues and expenses denominated in foreign currencies are revalued at the exchange rates in effect on the transaction date.

The Company’s reporting currency as at December 31, 2025 is the U.S. dollar ("USD"). The functional currency of the Company's U.K. subsidiaries changed from GBP to USD on January 1, 2017. The accumulated other comprehensive loss recorded prior to the change in functional currency will remain on the balance sheet until such time as the U.K. operations are sold, or substantially liquidated.

l. Share Based Compensation

The Company issues restricted stock units, performance stock units and warrants and may issue other equity-based awards to its employees. Compensation cost is measured at the grant date fair value and expensed over the period for which the employee is required to provide services in exchange for the award. For awards subject to graded vesting, the awards are separated into vesting tranches, which are amortized over their respective vesting periods. Forfeitures are recognized as they occur.

See Note 12, Share Incentive Plans, for further details of the accounting treatment for the Value Appreciation Pool ("VAP").

m. Intangible Assets

The Company accounts for intangible assets that arise from business combinations in accordance with FASB ASC Topic Intangibles - Goodwill and Other. Other intangible assets with indefinite useful lives are not amortized. Other intangible assets with a finite life are amortized over the estimated useful lives of the assets.

The Company's indefinite lived intangible assets are tested for impairment on an annual basis or more frequently if events or changes in circumstances warrant. Finite lived intangible assets are reviewed for indicators of impairment on an annual basis or more frequently if events or changes in circumstances indicate that the carrying amount may not be recoverable and tested for impairment if appropriate. If indefinite lived intangible assets are impaired, they are written down to their estimated fair value with a corresponding expense recorded in the Company's consolidated statement of operations.

As part of the annual impairment test of finite lived intangible assets, the Company has the option to first assess qualitative factors to determine whether it's necessary to perform a quantitative impairment test. Under this option, the Company would not be required to calculate the fair value of a reporting unit unless the Company determines, based on its qualitative assessment, that it is more likely than not that a reporting unit's fair value is less than its carrying amount. If finite lived intangible assets are impaired, they are written down to their estimated fair value with a corresponding expense recorded in the Company's consolidated statement of operations.

n. Variable Interest Entities

The Company accounts for variable interest entities ("VIE") in accordance with GAAP guidance, which requires the consolidation of all VIEs by the primary beneficiary: the investor that has the power to direct the activities of the VIE and will absorb a majority of the VIE’s expected losses or residual returns. The Company determines whether it is the primary beneficiary of a VIE by performing an analysis that principally considers: (i) the VIE’s purpose and design, including the risks the VIE was designed to create and pass through to its variable interest holders; (ii) the VIE’s capital structure; (iii) the terms between the VIE and its variable interest holders and other parties involved with the VIE; (iv) which variable interest holders have the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance; (v) which variable interest holders have the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE; and (vi) related party relationships. The Company reassesses its initial evaluation of an entity as a VIE upon the occurrence of certain reconsideration events. The Company also reassesses its determination of whether the Company is the primary beneficiary of a VIE upon changes in facts and circumstances that could potentially alter the Company’s assessment.

o. Non-Controlling Interest

The share classes related to the redeemable non-controlling interest portion of TS Hamilton Fund are not considered liabilities in accordance with GAAP and have redemption features that are not solely within the control of TS Hamilton Fund. Therefore, the redeemable non-controlling interest in TS Hamilton Fund is presented in the mezzanine section on the Company’s consolidated balance sheets. The net income or loss attributable to non-controlling interest is presented separately in the Company’s consolidated statements of operations. See Note 5, Variable Interest Entities, for further details.

p. Earnings Per Share

The Company calculates earnings per share in accordance with FASB ASC Topic Earnings per Share. Basic earnings per share are based on weighted average common shares outstanding during the period and exclude any dilutive effects of restricted stock units and warrants. Diluted earnings per share includes the estimated impact under the Treasury Stock method where all dilutive restricted stock grants are assumed to vest and all dilutive warrants to be exercised during the period.

q. Income Taxes

The Company records deferred income taxes that reflect the tax effect of the temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and their respective tax bases. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the fiscal period that includes the enactment date. A valuation allowance against deferred tax assets is recorded if it is not more likely than not that all, or some portion, of the benefits related to deferred tax assets will be realized. The valuation allowance assessment considers tax planning strategies, where applicable.

r. Government Grants - Bermuda Substance Based Tax Credit

The Bermuda Tax Credits Act 2025 (the "Credits Act") became effective on December 11, 2025. The Company qualifies for the Credits Act Accrued Substance Based Tax Credit ("SBTC") which rewards Bermuda based insurers who demonstrate significant investment in the Bermuda economy through employment of Bermuda based employees and patronage of local businesses where the Bermuda group include at least one Bermuda Monetary Authority ("BMA") regulated insurer and where the group derives more than 50% of its aggregate gross revenues from insurance activities in the fiscal year.

The SBTC is calculated with reference to both job-based and expense-based components. The credit may be applied against corporate income tax and/or be refunded to the extent the Company has paid employer based payroll expenses. To the extent the credits have not been fully utilized after four years, it is refundable to the Bermuda entity in cash. Implementation is subject to a transition factor, with full benefit to be phased in for fiscal years beginning in 2027. Unused credits may be carried forward and applied over a three-year benefit period.

The SBTC is accrued in line with the underlying qualifying payroll and other eligible expenses. The SBTC is recorded as an offset to "General and administrative expenses" on the Consolidated Statements of Operations and Comprehensive Income (Loss) and in "Other assets" on the Consolidated Balance Sheets, while the change in accrual is reflected in operating cash flows on the Consolidated Statements of Cash Flows. The Company recorded an SBTC of $20.8 million for the year ended December 31, 2025.

s. Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In December 2023, the FASB issued ASU 2023-09 Income Taxes, which enhances the quantitative annual disclosures related to tax rate reconciliations and income taxes paid and requires additional qualitative discussion of applicable tax jurisdictions and the nature of certain reconciling items. The Company adopted this guidance for the year ended December 31, 2025 and it did not have a material impact on the Company’s results of operations, financial position or cash flows.

In December 2025, the FASB issued ASU 2025-10 Government Grants, which establishes authoritative guidance on the accounting for government grants received by business entities. The Company elected to adopt this guidance for the year ended December 31, 2025. See Note 2r, Government Grants- Bermuda Substance Based Tax Credit for further details.

Recently Issued Accounting Pronouncements

In November 2024, the FASB issued ASU 2024-03 Disaggregation of Income Statement Expenses, which enhances the quantitative and qualitative disclosures related to specified information about certain costs and expenses. The guidance is effective for annual periods beginning after December 15, 2026. Early adoption is permitted. The Company is currently evaluating the impact of this guidance.

In September 2025, the FASB issued ASU 2025-06 Targeted Improvements to the Accounting for Internal-Use Software, which better aligns the accounting for internally-developed software with modern software development practices. The guidance is effective for annual periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of this guidance.

In December 2025, the FASB issued ASU 2025-11 Interim Reporting, which clarifies the nature and applicability of existing interim disclosures. The guidance is effective for annual periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of this guidance.

  1. Investments

Fixed Maturity and Short-Term Investments - Trading

The Company’s fixed maturity and short-term investments are as follows:

December 31, 2025
($ in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Fixed maturities:
U.S. government treasuries$795,780$4,782$(2,728)$797,834
U.S. states, territories and municipalities12,92489(53)12,960
Non-U.S. sovereign governments and supranationals108,2963,102(537)110,861
Corporate1,557,58229,899(3,337)1,584,144
Residential mortgage-backed securities - Agency370,5164,419(9,285)365,650
Residential mortgage-backed securities - Non-agency33,052319(826)32,545
Commercial mortgage-backed securities - Non-agency94,223835(360)94,698
Other asset-backed securities238,5671,401(117)239,851
Total fixed maturities3,210,94044,846(17,243)3,238,543
Short-term investments200,052419(12)200,459
Total$3,410,992$45,265$(17,255)$3,439,002
December 31, 2024
($ in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
Fixed maturities:
U.S. government treasuries$724,785$611$(14,293)$711,103
U.S. states, territories and municipalities13,53325(327)13,231
Non-U.S. sovereign governments and supranationals70,435454(3,362)67,527
Corporate1,153,6126,484(17,036)1,143,060
Residential mortgage-backed securities - Agency288,760160(16,309)272,611
Residential mortgage-backed securities - Non-agency17,4326(684)16,754
Commercial mortgage-backed securities - Non-agency40,36372(749)39,686
Other asset-backed securities113,997249(356)113,890
Total fixed maturities2,422,9178,061(53,116)2,377,862
Short-term investments495,6301,484(4)497,110
Total$2,918,547$9,545$(53,120)$2,874,972

Contractual Maturities Summary

The following table presents contractual maturities of fixed maturity securities. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

December 31, 2025
($ in thousands)Amortized CostFair Value
Due less than one year$139,774$139,940
Due after one through five years1,959,1131,988,349
Due after five through ten years357,667360,252
Due after ten years18,02817,258
Mortgage-backed securities497,791492,893
Asset-backed securities238,567239,851
Total$3,210,940$3,238,543

Investments in Two Sigma Funds

TS Hamilton Fund invests in Two Sigma Funds ("Two Sigma Funds"), which are stated at their estimated fair values, which generally represent the Company’s proportionate interest in the members’ equity of the Two Sigma Funds as reported by the respective funds based on the net asset value ("NAV") provided by the fund administrator. The Company accounts for its investment in Two Sigma Funds under the variable interest model at NAV as a practical expedient for fair value in the consolidated balance sheet.

The Company owns the following interest in each of the Two Sigma Funds:

Two Sigma FundsAbbreviation%
Two Sigma Spectrum Portfolio, LLCSTV13.3%
Two Sigma Equity Spectrum Portfolio, LLCESTV8.2%
Two Sigma Absolute Return Portfolio, LLCATV1.9%
Two Sigma Futures Portfolio, LLCFTV6.4%
Two Sigma Horizon Portfolio, LLCHTV5.4%
Two Sigma Navigator Portfolio, LLCNTV6.1%
Two Sigma Kuiper Portfolio, LLCKTV5.2%

The Company, through its investments in the Two Sigma Funds, seeks to achieve absolute dollar-denominated returns on a substantial capital base, primarily by combining multiple hedged and leveraged systematic and non-systematic investment strategies with proprietary risk management and execution techniques. These strategies include, but are not limited to, technical and statistically-based, fundamental-based, event-based, market condition-based and spread-based strategies as well as contributor-based and/or sentiment-based strategies and blended strategies. At December 31, 2024, the Company's investment in the Two Sigma Funds consisted of STV, ESTV and FTV; effective January 1, 2025, the Company amended its existing investment in Two Sigma Funds to include an allocation to ATV, HTV, NTV and KTV.

STV primarily utilizes systematic strategies to trade U.S.-listed equity securities, exchange traded funds, money market funds, swap contracts and government debt securities.

ESTV primarily utilizes systematic strategies to trade non-U.S.-listed equity securities, swap contracts, money market funds, government debt securities, futures and foreign currency forward contracts.

ATV primarily utilizes systematic strategies to trade a diversified, global, equity market neutral portfolio, predominantly of equity securities, equity-related derivatives and other related instruments.

FTV primarily utilizes systematic macro strategies to trade exchange traded funds, exchange memberships, government debt securities, money market funds, option contracts, swap contracts, futures and forward contracts.

HTV primarily utilizes systematic strategies and non-systematic discretionary strategies to trade futures, futures options, foreign currency spot, forward and option contracts, exchange-traded products ("ETPs") and ETP options, debt securities, and various types of derivatives and other instruments.

NTV primarily utilizes non-systematic discretionary macro strategies that combine human discretion with quantitative analysis for purposes of trading globally across various asset classes.

KTV primarily utilizes non-systematic discretionary strategies that combine human discretion with quantitative analysis to trade futures, futures options, foreign currency spot, forward and option contracts, ETPs and ETP options, debt securities, and various types of derivatives and other instruments.

The Company’s investments in Two Sigma Funds are as follows:

($ in thousands)December 31, 2025December 31, 2024
Two Sigma FundsCostNet Unrealized Gains (Losses)Fair ValueCostNet Unrealized Gains (Losses)Fair Value
Two Sigma Spectrum Portfolio, LLC$500,616$131,996$632,612$360,997$102,267$463,264
Two Sigma Equity Spectrum Portfolio, LLC187,71849,906237,624136,56547,011183,576
Two Sigma Absolute Return Portfolio, LLC93,0928,882101,974———
Two Sigma Futures Portfolio, LLC192,06444,998237,062308,061(15,520)292,541
Two Sigma Horizon Portfolio, LLC241,0904,585245,675———
Two Sigma Navigator Portfolio, LLC110,577(9,585)100,992———
Two Sigma Kuiper Portfolio, LLC30,4061,31331,719———
Total$1,355,563$232,095$1,587,658$805,623$133,758$939,381

The following table summarizes certain investments of the Two Sigma Funds where TS Hamilton Fund’s proportionate share of the fair value of the investment represents more than 5% of TS Hamilton Fund’s members’ equity:

December 31, 2025
($ in thousands)Principal / Shares (1)Fair Value (1)% of Members' Equity
State Street Treasury Obligations Money Market Fund135,670$135,6706.2%
BlackRock Liquidity Funds T-Fund Portfolio173,686$173,6868.0%
U.S. Treasury Securities, 0.0000% - 4.8750%, due 1/13/2026 - 11/15/20551,926,111$1,924,63488.4%
U.S. Treasury Securities, 1.1250% - 4.8750%, due 1/31/2027 - 11/15/2055(545,630)$(540,988)(24.8)%

(1) Values represent TS Hamilton Fund’s proportionate share of the aggregate of the Two Sigma Funds' total holdings.

Two Sigma and the Managing Member are related parties to the Company as described further in Note 1, Organization. Effective July 1, 2023, an investment management agreement with Two Sigma requires TS Hamilton Fund to incur a management fee of 2.5% of the non-managing members' equity in the net asset value of the TS Hamilton Fund per annum. The management fee for the years ended December 31, 2025, 2024 and 2023 was $52.6 million, $46.9 million and $45.2 million, respectively.

Under the terms of the limited liability company agreement between Hamilton Re and the Managing Member, the Managing Member is entitled to an incentive allocation equal to 30% of TS Hamilton Fund’s net profits, subject to high watermark provisions, and adjusted for withdrawals and any incentive allocation to the Managing Member. In the event there is a net loss during a quarter and a net profit during any subsequent quarter, the Managing Member is entitled to a modified incentive allocation whereby the regular incentive allocation will be reduced by 50% until subsequent cumulative net profits are credited in an amount equal to 200% of the previously allocated net losses. The Managing Member is also entitled to receive an additional incentive allocation as of the end of each fiscal year (or on any date Hamilton Re withdraws all or a portion of its capital), in an amount equal to 25% of the Excess Profits. "Excess Profits" for any given fiscal year (or other such accounting period) means the net profits over 10% for such fiscal year, net of management fees and expenses and gross of incentive allocations, but only after recouping previously unrecouped net losses. To the extent Hamilton Re contributes capital other than at the beginning of a fiscal year or withdraws capital other than at the end of a fiscal year, the additional incentive allocation hurdle with respect to such capital is prorated. The aggregate incentive allocation (inclusive of the additional incentive allocation) for the years ended December 31, 2025, 2024 and 2023 was $263.3 million, $212.7 million and $21.5 million, respectively.

Hamilton Re has a commitment with TS Hamilton Fund to maintain an amount up to the lesser of (i) $1.8 billion or (ii)60% of Hamilton Group’s net tangible assets in TS Hamilton Fund, such lesser amount, the "Minimum Commitment Amount", for athree-year period (the "Initial Term") and for rolling three-year periods thereafter (each such three-year period the "Commitment Period"), subject to certain circumstances and the liquidity options described below, with the current Commitment Period ending on June 30, 2028. The Commitment Period consists of athree-year rolling term that automatically renews on an annual basis unless Hamilton Re or the Managing Member provide advance notice of non-renewal.

The TS Hamilton Fund generally has two liquidity options, subject to Hamilton Re’s minimum investment commitment, which are as follows:

Monthly liquidity - Subject to certain conditions, Hamilton Re may request a whole or partial withdrawal of its capital account, no later than fifteen days prior to the end of a calendar month, effective as of the last day of such calendar month.

Daily liquidity - Subject to certain limited circumstances, including the need to meet obligations pursuant to Hamilton Re’s underwriting operations, Hamilton Re may request a withdrawal of all or a portion of its capital account upon at leastone business day’s written notice of such withdrawal request date to the Managing Member.

At its discretion, the Managing Member may permit or require Hamilton Re to withdraw all or any portion of its respective capital account at other times, or waive or reduce certain notice periods, or allow a notice to be revoked. The Managing Member may withdraw all or any portion of its capital account at any time.

The components of total net realized and unrealized gains (losses) on investments and net investment income (loss) are as follows:

Years Ended December 31,
($ in thousands)202520242023
Net realized and unrealized gains (losses) on investments:
Net realized gains (losses) on investments$517,147$468,068$84,513
Change in net unrealized gains (losses) on investments169,96443,339125,097
Net realized and unrealized gains (losses) on investments687,111511,407209,610
Net investment income (loss):
Fixed maturities115,86981,87247,970
Short-term investments47867295
TS Hamilton Fund10,67312,37316,084
Cash and cash equivalents16,28717,00612,523
Other1,0682,2931,580
Interest and other144,375113,61178,452
Management fees(55,153)(49,102)(47,049)
Other expenses(1,201)(1,242)(947)
Net investment income (loss)88,02163,26730,456
Total net realized and unrealized gains (losses) on investments and net investment income (loss)$775,132$574,674$240,066

Net Realized Gains (Losses) on Investments

The components of net realized gains (losses) on investments are as follows:

Years Ended December 31,
($ in thousands)202520242023
Fixed maturities and short-term investments$7,369$(2,307)$(16,628)
TS Hamilton Fund509,778470,091100,930
Other—284211
Net realized gains (losses) on investments$517,147$468,068$84,513

Net Unrealized Gains (Losses) on Investments

The components of net unrealized gains (losses) on investments are as follows:

Years Ended December 31,
($ in thousands)202520242023
Fixed maturities and short-term investments$72,771$(8,908)$52,751
TS Hamilton Fund97,19352,24772,346
Net unrealized gains (losses) on investments$169,964$43,339$125,097

Pledged Assets

At December 31, 2025 and 2024, pledged investments at fair value were comprised of $263.1 million and $245.3 million, respectively, securing a portion of the capital requirements for business written at Lloyd's, $265.0 million and $266.9 million, respectively, held in trust accounts for the benefit of U.S. state regulatory authorities and $90.4 million and $47.0 million, respectively, securing other underwriting obligations. In addition, certain investments were pledged as security for letter of credit facilities as described further in Note 10, Debt and Credit Facilities.

At December 31, 2025 and 2024, restricted cash and cash equivalents balances were comprised of $106.2 million and $101.8 million, respectively, securing other underwriting obligations, $1.4 million and $1.1 million, respectively, securing a portion of the capital requirements for business written at Lloyd's and $2.1 million and $1.5 million, respectively, in trust accounts for the benefit of regulatory authorities.

Total cash and cash equivalents and restricted cash and cash equivalents of $1.2 billion presented in the statement of cash flows was comprised of cash and cash equivalents of $1.1 billion and restricted cash and cash equivalents of $109.7 million on the balance sheet at December 31, 2025. Total cash and cash equivalents and restricted cash and cash equivalents of $1.1 billion presented in the statement of cash flows was comprised of cash and cash equivalents of $996.5 million and restricted cash and cash equivalents of $104.4 million on the balance sheet at December 31, 2024.

  1. Fair Value

Financial Instruments Subject to Fair Value Measurements

Accounting guidance over fair value measurements requires that a fair value measurement reflect the assumptions market participants would use in pricing an asset or liability based on the best information available. Assumptions include the risks inherent in a particular valuation technique (such as a pricing model) and/or the risks inherent in the inputs to the model. The fair value of a financial instrument is the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (the "exit price"). Instruments that the Company owns are marked to bid prices.

Basis of Fair Value Measurements

Fair value measurement accounting guidance also establishes a fair value hierarchy that prioritizes the inputs to the respective valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). An asset or liability’s classification within the fair value hierarchy is based on the lowest level of significant input to its valuation. The three levels of the fair value hierarchy are:

Level 1 - Inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date;

Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability either directly or indirectly, including inputs in markets that are not considered to be active; and

Level 3 - Inputs that are both significant to the fair value measurement and unobservable.

Assets Recorded at Fair Value - Fixed Maturity and Short-term Investments

The following section describes the valuation methodologies used to determine the fair value of the Company’s fixed maturity and short-term investments by asset class:

U.S. government treasuries: fair value based on observable market inputs such as quoted prices, reported trades, quoted prices for similar issuances and benchmark yields;

U.S. states, territories and municipalities: fair value based on observable market inputs such as quoted market prices, quoted prices for similar securities, benchmark yields and credit spreads;

Non-U.S. sovereign governments and supranationals: fair value based on observable market inputs such as quoted market prices, quoted prices for similar securities and models with observable inputs such as benchmark yields and credit spreads, and then, where applicable, converted to U.S. dollars using an exchange rate from a nationally recognized source;

Corporate: fair value based on observable market inputs such as quoted market prices, quoted prices for similar securities, benchmark yields and credit spreads;

Asset-backed and mortgage-backed securities: fair value based on observable inputs such as quoted prices, reported trades, quoted prices for similar issuances or benchmark yields and cash flow models using observable inputs such as prepayment speeds, collateral performance and default spreads; and

Short-term investments: fair value based on observable market inputs such as quoted prices, reported trades, quoted prices for similar issuances and benchmark yields.

The following table presents the financial instruments measured at fair value on a recurring basis:

December 31, 2025
($ in thousands)Level 1Level 2Level 3Total
Fixed maturities:
U.S. government treasuries$—$797,834$—$797,834
U.S. states, territories and municipalities—12,960—12,960
Non-U.S. sovereign governments and supranationals—110,861—110,861
Corporate—1,584,144—1,584,144
Residential mortgage-backed securities - Agency—365,650—365,650
Residential mortgage-backed securities - Non-agency—32,545—32,545
Commercial mortgage-backed securities - Non-agency—94,698—94,698
Other asset-backed securities—239,851—239,851
Total fixed maturities—3,238,543—3,238,543
Short-term investments—200,459—200,459
Total$—$3,439,002$—$3,439,002
December 31, 2024
($ in thousands)Level 1Level 2Level 3Total
Fixed maturities:
U.S. government treasuries$—$711,103$—$711,103
U.S. states, territories and municipalities—13,231—13,231
Non-U.S. sovereign governments and supranationals—67,527—67,527
Corporate—1,143,060—1,143,060
Residential mortgage-backed securities - Agency—272,611—272,611
Residential mortgage-backed securities - Non-agency—16,754—16,754
Commercial mortgage-backed securities - Non-agency—39,686—39,686
Other asset-backed securities—113,890—113,890
Total fixed maturities—2,377,862—2,377,862
Short-term investments—497,110—497,110
Total$—$2,874,972$—$2,874,972

The carrying values of cash and cash equivalents, restricted cash and cash equivalents, accrued investment income, receivables for investments sold, certain other assets, payables for investments purchased, and certain other liabilities approximate their fair values.

  1. Variable Interest Entities

TS Hamilton Fund

TS Hamilton Fund meets the definition of a variable interest entity ("VIE") principally because the Managing Member does not hold substantive equity at risk in the entity but controls all of the decision making authority over it. Therefore, the Company assessed its ownership in the VIE to determine if it is the primary beneficiary. The Managing Member is a related party to the Company and collectively they hold all of the variable interest. The Company performed an assessment of all relevant facts and circumstances and determined that it is the entity within the related party group for whom substantially all of the activities of the VIE are conducted. As a result, the Company concluded that it is the primary beneficiary of TS Hamilton Fund.

Activity in the non-controlling interest of TS Hamilton Fund was as follows:

Years Ended December 31,
($ in thousands)202520242023
Balance - beginning of year$128$133$119
Withdrawals(263,315)(212,734)(21,546)
Equity in earnings444314
Incentive allocation263,315212,68621,546
Balance - end of year$172$128$133

The following table presents the total assets and total liabilities of TS Hamilton Fund. Creditors or beneficial interest holders of TS Hamilton Fund have no recourse to the general credit of the Company as the Company’s obligation is limited to the amount of its committed investment.

December 31,
($ in thousands)20252024
Assets
Cash and cash equivalents$648,726$578,230
Short-term investments198,986496,008
Investments in Two Sigma Funds, at fair value1,587,658939,381
Receivables for investments sold57,93873,322
Interest and dividends receivable1,110945
Total assets2,494,4182,087,886
Liabilities
Payable for investments purchased192,467100,469
Withdrawal payable123,376100,420
Accounts payable and accrued expenses214233
Total liabilities316,057201,122
Total net assets managed by TS Hamilton Fund$2,178,361$1,886,764
  1. Intangible Assets

The following table provides a summary of the Company's intangible assets:

($ in thousands)Intangible Assets Subject to AmortizationIntangible Assets not Subject to AmortizationTotal
Net balance, December 31, 2023$53,788$37,208$90,996
Plus: additions17,645—17,645
Less: amortization(15,520)—(15,520)
Net balance, December 31, 202455,91337,20893,121
Plus: additions9,212—9,212
Less: amortization(15,709)—(15,709)
Net balance, December 31, 2025$49,416$37,208$86,624
Gross balance, December 31, 2025$115,894$37,208$153,102
Accumulated amortization(66,478)—(66,478)
Net balance, December 31, 2025$49,416$37,208$86,624

The following tables present the components of intangible assets:

December 31, 2025
($ in thousands)Gross BalanceAccumulated Amortization and ImpairmentNet Balance
Intangible assets subject to amortization
Coverholder and broker relationships$44,515$(28,159)$16,356
Internally developed software71,379(38,319)33,060
Intangible assets not subject to amortization
Lloyd's syndicate capacity35,583—35,583
Licenses1,625—1,625
$153,102$(66,478)$86,624
December 31, 2024
($ in thousands)Gross BalanceAccumulated Amortization and ImpairmentNet Balance
Intangible assets subject to amortization
Coverholder and broker relationships$44,515$(23,707)$20,808
Internally developed software62,166(27,061)35,105
Intangible assets not subject to amortization
Lloyd's syndicate capacity35,583—35,583
Licenses1,625—1,625
$143,889$(50,768)$93,121

The Company's finite-lived intangible assets are amortized on a straight-line basis over their useful lives. As of December 31, 2025, the estimated weighted average amortization period by class consisted of coverholder and broker relationships (10 years) and internally developed software (5 years). Costs incurred to renew or extend the assets' useful lives are expensed straight-line over the remaining life of the related asset or asset class. The weighted-average amortization period is 2.3 years and the estimated amortization expense for each of the five succeeding fiscal years and thereafter related to these assets is as follows:

Estimated Amortization Expense
($ in thousands)
Year Ending December 31,
2026$15,596
202714,373
202811,434
20296,411
20301,602
Total$49,416

Intangible assets not subject to amortization consist of Lloyd's syndicate capacity and insurance licenses. The Company did not recognize any impairment losses as a result of the annual impairment review of indefinite-lived assets for the years ended December 31, 2025, 2024 or 2023.

  1. Reinsurance

The Company purchases reinsurance and other protection to manage its risk portfolio and to reduce its exposure to large losses. The Company currently has in place contracts that provide for recovery of a portion of certain loss and loss adjustment expenses, generally in excess of various retentions or on a proportional basis. Amounts recoverable under reinsurance contracts are recorded as assets. The Company remains liable to the extent that any reinsurance company fails to meet its obligations.

The following tables set forth the effect of reinsurance and retrocessional activity on premiums written and earned and on losses and loss adjustment expenses incurred:

Premiums Written
Years Ended December 31,
($ in thousands)202520242023
Assumed$1,452,988$1,144,798$838,547
Direct1,470,1571,277,7841,112,491
Ceded(635,602)(501,413)(470,600)
Net$2,287,543$1,921,169$1,480,438
Premiums Earned
Years Ended December 31,
($ in thousands)202520242023
Assumed$1,291,477$1,030,595$742,378
Direct1,376,4711,180,9321,016,762
Ceded(558,172)(476,798)(440,607)
Net$2,109,776$1,734,729$1,318,533
Losses and Loss Adjustment Expenses
Years Ended December 31,
($ in thousands)202520242023
Gross losses and loss adjustment expenses$1,697,071$1,290,131$972,347
Losses and loss adjustment expenses ceded(438,550)(279,958)(257,744)
Net$1,258,521$1,010,173$714,603

Allowance for Expected Credit Losses

Premiums receivable, paid losses recoverable, and unpaid losses and loss adjustment expenses recoverable comprise the Company's most significant credit exposures not carried at fair value. The Company has not historically experienced significant credit losses. In determining an allowance for these assets, the Company considers historical information in combination with counterparty financial strength ratings and the extent to which balances are collateralized. The Company assesses the risk of future default by evaluating current market conditions for the likelihood of default and calculates its provision for current expected credit losses under the probability of default and loss given default methodology.

Premiums Receivable

Premiums receivable are estimated based on policy terms and reports received from the underlying counterparties, supplemented by management's judgment. Due to the nature of the (re)insurance business, the Company routinely receives reports and premiums subsequent to the inception of the coverage period. At December 31, 2025, the Company’s premiums receivable balance, net of credit provisions of $3.4 million, was $939.8 million. At December 31, 2024, the Company’s premiums receivable balance, net of credit provisions of $3.0 million, was $771.7 million.

The following table provides a roll forward of the provision for current expected credit losses of the Company's premiums receivable:

Years Ended December 31,
($ in thousands)202520242023
Balance - beginning of year$2,993$3,000$2,856
Increase (decrease) in allowance450(7)144
Balance - end of year$3,443$2,993$3,000

Reinsurance Balances Recoverable

Reinsurance balances recoverable is comprised of amounts due from reinsurers based on the claim liabilities associated with the reinsured policy. The Company accrues amounts due from reinsurers based on estimated ultimate contract losses. At December 31, 2025, the Company’s paid and unpaid reinsurance recoverable balances net of credit provisions were $93.7 million and $1.4 billion, respectively, with a total corresponding provision for current expected credit losses of $1.7 million. At December 31, 2024, the Company’s paid and unpaid reinsurance recoverable balances net of credit provisions were $134.4 million and $1.2 billion, respectively, with a total corresponding provision for current expected credit losses of $1.5 million.

The following table provides a roll forward of the provision for current expected credit losses of the Company's reinsurance recoverable:

Years Ended December 31,
($ in thousands)202520242023
Balance - beginning of year$1,469$687$777
Increase (decrease) in allowance249782(90)
Balance - end of year$1,718$1,469$687

The distribution of the Company’s paid losses recoverable and unpaid losses and loss adjustment expenses recoverable as categorized by major rating agencies were as follows:

December 31,
Classification20252024
Collateralized20.7%23.7%
A- or better79.3%76.2%
Below A-0.0%0.1%
Total100.0%100.0%

At December 31, 2025 and 2024, the three largest balances by reinsurer accounted for 20%,18% and 12%, and 22%,19% and 13%, respectively, of paid losses recoverable and unpaid losses and loss adjustment expenses recoverable.

Loss Portfolio Transfer

On February 6, 2020, the Company entered into a loss portfolio transfer agreement (the "LPT"), under which the insurance liabilities arising from certain casualty risks for the Lloyd's Years of Account ("YOA") 2016, 2017 and 2018 were retroceded to a third party in exchange for total premium of $72.1 million. This transaction was accounted for as retroactive reinsurance under which cumulative ceded losses exceeding the LPT premium are recognized as a deferred gain liability and amortized into income over the settlement period of the ceded reserves in proportion to cumulative losses collected over the estimated ultimate reinsurance recoverable. The amount of the deferred gain is recalculated each reporting period based on updated ultimate loss estimates. Consequently, cumulative adverse development subsequent to the signing of the LPT may result in significant losses from operations until periods when the recalculated deferred gain is recognized as a benefit to earnings.

At December 31, 2025 and 2024, the balance of reinsurance recoverable on unpaid losses due under this LPT was $22.7 million and $23.7 million, respectively. Amortization of the deferred gain was an expense of $0.8 million and $9.4 million for the years ended December 31, 2025 and 2024, and income of $4.2 million for the year ended December 31, 2023, respectively, which was recorded through losses and loss adjustment expenses in accordance with the actual loss payments and updated estimates of ultimate losses of the subject business.

Catastrophe Bond Reinsurance

In December 2023, Hamilton Group sponsored an industry loss index-triggered catastrophe bond through the issuance of Series 2024-1 Class A Principal-at-Risk Variable Rate Notes by Bermuda domiciled Easton Re Ltd. ("Easton Re"), which provide the Company's operating platforms with multi-year risk transfer capacity of $200 million to protect against named storm risk in the United States and earthquake risk in the United States and Canada. The risk period for Easton Re is from January 1, 2024 to December 31, 2026. The Company recorded reinsurance premiums ceded of $15.2 million and $14.6 million during the years ended December 31, 2025 and 2024, respectively.

In December 2020, Hamilton Group sponsored an industry loss index-triggered catastrophe bond through the issuance of Series 2020-1 Class A Principal-at-Risk Variable Rate Notes by Singapore domiciled Easton Re Pte, Ltd. (also "Easton Re"). Easton Re provided the Company's operating platforms with multi-year risk transfer capacity of $150 million to protect against named storm and earthquake risk in the United States. The risk period for Easton Re was from January 1, 2021 to December 31, 2023. The Company recorded reinsurance premiums ceded of $7.2 million during the year ended December 31, 2023.

  1. Reserve for Losses and Loss Adjustment Expenses

The following table presents a reconciliation of unpaid losses and loss adjustment expenses ("LAE"):

Years Ended December 31,
($ in thousands)202520242023
Gross unpaid losses and loss adjustment expenses, beginning of year$3,532,491$3,030,037$2,856,275
Reinsurance recoverable on unpaid losses1,171,0401,161,0771,177,863
Net unpaid losses and loss adjustment expenses, beginning of year2,361,4511,868,9601,678,412
Net losses and loss adjustment expenses incurred in respect of losses occurring in:
Current year1,323,4511,030,612730,220
Prior years(64,930)(20,439)(15,617)
Total incurred1,258,5211,010,173714,603
Net losses and loss adjustment expenses paid in respect of losses occurring in:
Current year180,45558,72662,811
Prior years446,846458,040501,987
Total paid627,301516,766564,798
Foreign currency revaluation and other46,648(916)40,743
Net unpaid losses and loss adjustment expenses, end of year3,039,3192,361,4511,868,960
Reinsurance recoverable on unpaid losses1,375,8571,171,0401,161,077
Gross unpaid losses and loss adjustment expenses, end of year$4,415,176$3,532,491$3,030,037

Net favorable prior year development of $64.9 million for the year ended December 31, 2025 was comprised of $46.4 million and $18.5 million of favorable prior year development on attritional and catastrophe losses, respectively. See below for further details:

Net favorable development of $65.5 million on property contracts, primarily driven by favorable prior year development on Hurricane Ian, the June 2023 severe convective storms, Hurricane Idalia and various other weather-related events, in addition to favorable attritional loss development; and

Net favorable development of $25.4 million on specialty contracts, primarily driven by a reduction in loss estimates on certain classes; partially offset by

Net unfavorable development of $27.7 million on casualty contracts, primarily driven by unfavorable prior year development on discontinued lines of business and additional information on certain large losses.

In addition, casualty business protected by the LPT discussed in Note 7, Reinsurance, benefited from favorable development in the underlying reserves of $2.5 million, which was partially offset by a change in the deferred gain of $0.8 million, for a total net positive earnings impact of $1.7 million.

Net favorable prior year development of $20.4 million for the year ended December 31, 2024 was comprised of $21.2 million of favorable prior year development on catastrophe losses, partially offset by $0.8 million of unfavorable prior year development on attritional losses. See below for further details:

Net favorable development of $37.5 million on property contracts, primarily driven by favorable prior year development on catastrophe losses and overall lower than expected claims development across various classes; partially offset by

Net unfavorable development of $14.2 million on casualty contracts, primarily driven by higher than expected claims development across certain classes and unfavorable development of a specific large loss;

Net unfavorable development of $8.8 million on specialty contracts, primarily driven by two specific large losses; and

In addition, casualty business protected by the LPT discussed in Note 7, Reinsurance, benefited from favorable development in the underlying reserves of $15.3 million, which was partially offset by a change in the deferred gain of $9.4 million, for a total net positive earnings impact of $5.9 million.

Net favorable prior year development of $15.6 million for the year ended December 31, 2023 was comprised of $10.4 million and $5.2 million of favorable prior year development on attritional and catastrophe losses, respectively. See below for further details:

Net favorable development of $18.6 million on specialty contracts, driven by lower loss estimates across various classes; partially offset by

Net unfavorable development of $4.6 million on property contracts, primarily driven by higher than expected claims related to Winterstorm Elliot and development on certain attritional claims, including claims arising from exited classes of business;

Net unfavorable development of $3.4 million on casualty contracts, reflecting modest unfavorable development on certain classes of business; and

In addition, casualty business protected by the LPT discussed in Note 7, Reinsurance, benefited from a $4.2 million change in the deferred gain and favorable development in the underlying reserves of $0.8 million, for a total net positive earnings impact of $5.0 million.

Reinsurance recoverable on unpaid losses related to the LPT discussed in Note 7, Reinsurance was recognized for the years ended December 31, 2025, 2024 and 2023 in the reconciliation of beginning and ending gross and net loss and LAE reserves.

The Company amortized acquisition costs of $507.3 million, $388.9 million and $309.1 million for the years ended December 31, 2025, 2024 and 2023, respectively.

California Wildfires

Our net reserves for losses and loss adjustment expenses related to the California wildfires are subject to significant uncertainty. As at December 31, 2025 and 2024, our net recorded reserves relating to the California wildfires totaled $57.5 million and $Nil, respectively.

Baltimore Bridge

Our net reserves for losses and loss adjustment expenses related to the Francis Scott Key Baltimore Bridge collapse on March 26, 2024 are also subject to significant uncertainty. As at December 31, 2025 and 2024, our net recorded reserves

totaled $20.5 million and $34.8 million, respectively.

Ukraine Conflict

Our net reserves for losses and loss adjustment expenses related to the ongoing Ukraine conflict are also subject to significant uncertainty. As at December 31, 2025 and 2024, our net recorded reserves totaled $59.5 million and $63.2 million, respectively.

While the Company believes, based on current facts and circumstances, that its estimates of net reserves for losses and loss adjustment expenses are adequate for losses and loss adjustment expenses that have been incurred at December 31, 2025, the Company will continue to monitor its assumptions as new information becomes available and will adjust its estimate of net reserves for losses and loss adjustment expenses as appropriate. Actual ultimate losses for these events may differ materially from the Company's current estimates.

Reserving

The Company's reserve for losses and loss adjustment expenses consists of case reserves and IBNR reserves. Case reserves are reserves for reported losses and loss adjustment expenses that have not yet been settled. IBNR are reserves for incurred but not reported losses and loss adjustment expenses, and include reserves for reported losses in excess of case reserves.

Case Reserves

For reinsurance business, the Company typically receives loss notifications from its cedants in the form of loss bordereaux or individual loss notifications. These notifications generally include varying amounts of information about the nature and quantum of the loss, including paid amounts and estimates of outstanding loss. The Company records the estimates of outstanding loss from its cedants as case reserves. Typically there is a timing lag between the cedant establishing a reserve and notifying the loss to the Company. In addition, different cedants have different claims handling practices which result in case reserve estimates that vary in the level of embedded prudence.

For insurance business, the Company records a case reserve for the estimated amount of settlement. This amount is based on the judgment of the Company’s claims team and takes into account the class of business, nature of the claim and, if appropriate, the advice of specialist legal counsel and external loss adjusters, and includes the estimated expenses of settling the claim, such as legal and other fees. The Company may sometimes use third party claims administrators to handle claims and set case reserves, within defined authority levels and service level agreements. In syndicated markets such as Lloyd’s, the Company’s case reserve will be based in part on information provided by the lead insurer, where the Company is not an agreement party. Any adjustments to case reserves are accounted for as changes in estimates and recorded in the period in which such changes are identified.

IBNR Reserves

The Company establishes IBNR reserves for large events based on a number of different factors, including information from brokers and cedants, proprietary loss modelling and pricing software, estimates of market loss and market share, experience from historical large events and other information that can guide the estimates of loss reserves. The Company's actuaries may use other approaches in addition to those described, and supplement these methods with judgement where they deem appropriate, depending upon the characteristics of the class of business and available data. These estimates are reviewed periodically as new information emerges.

IBNR reserves for attritional losses are established using actuarial loss reserving techniques. These techniques include the loss development factor method, Bornheutter Ferguson method, the Initial Expected Loss Ratio method, and other techniques. These techniques rely on estimates of paid and reported loss development patterns and estimates of the loss ratio at the inception of the contract. The Company’s actuaries review the estimates of IBNR reserves on a quarterly basis and adjust the estimates as new information becomes available. Any such adjustments are accounted for as changes in estimates and recorded in the periods in which they become known.

To establish IBNR reserves for attritional losses, contracts are grouped into cohorts, or reserving classes, that have similar coverage, inception period and loss reporting characteristics. The paid and reported losses for these reserving classes are tracked over time against expectations and against the actuarial loss reserving indications and IBNR reserve selected for each cohort.

Claims Development and Frequency

In determining the cumulative number of reported claims, the Company measures claim counts on its insurance business by individual claimant where information is available. The claim counts include all claims reported where the Company has identified a potential liability for the claim even if there is no existing reserve. Reinsurance business is typically written under either proportional (quota share arrangements) or non-proportional arrangements (excess of loss or other facultative covers).

The Company typically does not have direct access to claim frequency information underlying its assumed quota share arrangements, given the nature of that business. In addition, multiple claims are often aggregated by the ceding company before being reported to the Company. The Company generally does not use claim frequency information in the determination of loss reserves or for other internal purposes relating to proportional business. In addition, the nature, size, terms and conditions of contracts entered into by the Company may change from one accident year to the next and the quantum of contractual or policy limits, and accordingly, the potential amount of losses and loss adjustment expenses associated with a reported claim, can range from nominal to significant, and therefore the Company does not believe providing claims frequency information is practicable as it relates to its proportional business.

The Company has developed claims frequency information associated with its non-proportional reinsurance contracts. In determining claims frequency for its excess of loss reinsurance contracts, claims counts include all claims reported by each insured where a reserve for losses and loss adjustment expenses has been recorded. The Company has assumed that claims below the loss layer of a contract are excluded; if an insured's claim impacts multiple layers of a contract, the Company considers each impact to be a separate claim, and for an insured loss impacting more than one operating subsidiary, each impact is considered a separate claim.

Claims Development

The information provided herein about incurred and paid accident year claims development, net of reinsurance, for the periods ended prior to December 31, 2025 and the annual percentage payouts of incurred claims by age, net of reinsurance, is presented as supplementary information. The following tables show the paid and incurred loss development by broad classification based on groupings of contracts that are similar in coverage and duration:

International Property

Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended · As of December 31, 2025
November 30, · December 31, · IBNR (1) · Cumulative Number of Reported Claims
Accidentyear · 2016 (unaudited) · 2017 (unaudited) · 2018 (unaudited) · 2019 (unaudited) · 2020 (unaudited) · 2021 (unaudited) · 2022 (unaudited) · 2023 (unaudited) · 2024 (unaudited) · 2025
2016$7,527$6,551$6,212$6,351$6,011$7,155$7,261$7,349$7,306$7,306$—903
201738,37942,98644,91141,81941,26041,22441,23040,45642,201—1,168
201824,03726,19124,87324,53724,54224,46623,86923,899—1,125
201932,69533,89536,60936,67236,68734,82434,8323501,449
2020134,743144,201143,676143,418142,802141,3465,0002,264
2021113,813124,917121,907117,228115,5422,4381,578
202281,32474,56068,68667,2612,9121,092
202353,08548,48039,9285,393718
202473,51366,77718,407891
202594,45747,968701
Total$633,549$82,46811,889
(1)Total of incurred but not reported liabilities plus expected development on reported claims
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended
November 30, · December 31,
Accident year2016 (unaudited)2017 (unaudited)2018 (unaudited)2019 (unaudited)2020 (unaudited)2021 (unaudited)2022 (unaudited)2023 (unaudited)2024 (unaudited)2025
2016$171$3,428$4,567$6,668$7,049$6,891$7,003$7,277$7,277$7,277
20179,24929,28334,36340,19339,98440,83240,90041,33341,398
20181,32212,03617,34020,05320,90521,96423,60323,739
20198,30721,10620,94025,81832,94234,06634,320
202024,36590,859115,587132,191136,041136,239
202123,56463,784101,064112,184112,829
20229,99646,85657,55161,152
20235,50229,36232,908
20245,07143,685
202525,587
Total$519,134
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance$114,415
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance(1)
Years1(unaudited)2 (unaudited)3 (unaudited)4 (unaudited)5 (unaudited)6 (unaudited)7(unaudited)8(unaudited)9(unaudited)
18%47%19%11%3%1%2%1%0%
(1)Unaudited supplementary information is a weighted average derived from the incurred losses and allocated loss adjustment expenses, net of reinsurance triangle and cumulative paid losses and allocated loss adjustment expenses, net of reinsurance triangle.

International Casualty

The following table discloses losses incurred, losses paid and claims data excluding the impact of the loss portfolio transfer discussed in further detail in Note 7, Reinsurance.

Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended · As of December 31, 2025
November 30, · December 31, · IBNR (1) · Cumulative Number of Reported Claims
Accidentyear · 2016 (unaudited) · 2017 (unaudited) · 2018 (unaudited) · 2019 (unaudited) · 2020 (unaudited) · 2021 (unaudited) · 2022 (unaudited) · 2023 (unaudited) · 2024 (unaudited) · 2025
2016$171$278$243$342$342$342$388$367$166$153$—32
20176485,1877,3546,3325,8575,1215,0794,5796,3722,20773
20186975,8905,6864,9414,3514,4534,3004,871608561
201919,88219,19918,86718,11216,81715,84615,5671862,773
202028,69224,12317,87019,42619,26519,1203143,641
2021101,549109,013107,024106,824105,76550,4303,602
2022144,543145,030149,180149,48374,2013,994
2023145,783147,005147,30683,9936,188
2024198,705198,954162,5046,514
2025241,726208,4004,151
Total$889,317$582,84331,529
(1)Total of incurred but not reported liabilities plus expected development on reported claims
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended
November 30, · December 31,
Accident year2016 (unaudited)2017 (unaudited)2018 (unaudited)2019 (unaudited)2020 (unaudited)2021 (unaudited)2022 (unaudited)2023 (unaudited)2024 (unaudited)2025
2016$—$—$82$—$—$—$—$—$—$—
2017—226292,2852,4063,9644,0434,0464,078
2018354392,2663,1673,8004,0114,0664,090
20191772,7196,81313,33214,99215,13115,244
20203,3638,42012,48016,70616,81318,104
202179511,24320,07930,28639,603
20223,2409,45227,21751,764
20235,24019,42940,722
20244,74923,517
20255,922
Total$203,044
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance$686,273
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance(1)
Years1(unaudited)2 (unaudited)3 (unaudited)4 (unaudited)5 (unaudited)6 (unaudited)7(unaudited)8(unaudited)9(unaudited)
3%9%13%16%8%7%1%0%0%
(1)Unaudited supplementary information is a weighted average derived from the incurred losses and allocated loss adjustment expenses, net of reinsurance triangle and cumulative paid losses and allocated loss adjustment expenses, net of reinsurance triangle.

International Specialty

Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended · As of December 31, 2025
November 30, · December 31, · IBNR (1) · Cumulative Number of Reported Claims
Accidentyear · 2016 (unaudited) · 2017 (unaudited) · 2018 (unaudited) · 2019 (unaudited) · 2020 (unaudited) · 2021 (unaudited) · 2022 (unaudited) · 2023 (unaudited) · 2024 (unaudited) · 2025
2016$2,534$4,771$5,383$5,232$5,370$3,668$3,367$3,325$4,427$4,516$357766
201722,37817,43016,94315,25622,03025,39727,71431,27930,9901,4311,300
201831,72430,60629,17633,12937,83442,99542,92143,513(507)1,633
2019108,035109,971104,01797,77795,70295,30699,9755,1612,868
2020119,790116,242106,774105,314105,310105,0662,9792,971
2021124,844136,998138,471140,697136,7099,9643,120
2022129,423119,581121,981121,80013,7333,032
2023178,429178,984170,93644,0082,911
2024221,168217,988114,6132,939
2025271,971201,4331,868
Total$1,203,464$393,17223,408
(1)Total of incurred but not reported liabilities plus expected development on reported claims
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended
November 30, · December 31,
Accident year2016 (unaudited)2017 (unaudited)2018 (unaudited)2019 (unaudited)2020 (unaudited)2021 (unaudited)2022 (unaudited)2023 (unaudited)2024 (unaudited)2025
2016$248$2,141$4,000$3,098$3,446$3,600$3,265$3,265$3,874$3,952
20172,4278,99216,98621,76321,25623,04325,85828,92829,393
20182,05417,15530,65230,83935,61440,79243,17743,470
201914,07659,15277,53278,80786,73389,85891,838
202012,21853,42584,86494,657100,757101,232
20219,74345,83867,950105,231114,166
20229,00141,59677,303100,400
202317,94372,227104,005
202410,31963,280
202523,241
Total$674,977
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance$528,487
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance(1)
Years1(unaudited)2 (unaudited)3 (unaudited)4 (unaudited)5 (unaudited)6 (unaudited)7(unaudited)8(unaudited)9(unaudited)
8%31%23%14%7%4%4%4%3%
(1)Unaudited supplementary information is a weighted average derived from the incurred losses and allocated loss adjustment expenses, net of reinsurance triangle and cumulative paid losses and allocated loss adjustment expenses, net of reinsurance triangle.

Bermuda Property

Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended · As of December 31, 2025
November 30, · December 31, · IBNR (1) · Cumulative Number of Reported Claims
Accidentyear · 2016 (unaudited) · 2017 (unaudited) · 2018 (unaudited) · 2019 (unaudited) · 2020 (unaudited) · 2021 (unaudited) · 2022 (unaudited) · 2023 (unaudited) · 2024 (unaudited) · 2025
2016$56,248$38,658$37,476$35,938$35,120$36,340$35,652$35,132$35,011$34,940$—107
2017100,60398,09493,33281,03279,48483,41383,60382,46781,8531272
201862,05780,13177,84578,13273,81970,67569,59468,344—241
201914,77544,54056,26557,93957,63156,41354,366640141
2020112,056120,840126,275126,583127,579126,7173,606295
2021144,924161,604157,881150,283146,3123,945205
2022181,052209,797199,762183,20715,610232
2023102,739100,04778,82324,25879
2024168,850168,79082,296113
2025259,218104,470106
Total$1,202,570$234,8261,791
(1)Total of incurred but not reported liabilities plus expected development on reported claims
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended
November 30, · December 31,
Accident year2016 (unaudited)2017 (unaudited)2018 (unaudited)2019 (unaudited)2020 (unaudited)2021 (unaudited)2022 (unaudited)2023 (unaudited)2024 (unaudited)2025
2016$12,840$25,596$29,623$31,685$32,882$33,985$34,609$34,741$34,823$34,780
201724,53390,86471,19082,94071,79575,52478,35679,09779,638
201812,63171,55785,66067,54765,58367,41067,93867,414
20192,40132,43338,00246,50449,70551,24851,664
202013,25348,24675,445104,870113,365116,327
202116,08071,293106,089130,528135,251
202235,261109,215137,313150,944
202326,19938,72845,478
202424,36653,772
2025111,580
Total$846,848
Outstanding liabilities for accident year 2015 and prior, net of reinsurance12
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance$355,734
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance(1)
Years1 (unaudited)2 (unaudited)3 (unaudited)4 (unaudited)5 (unaudited)6 (unaudited)7 (unaudited)8 (unaudited)9 (unaudited)
23%40%13%10%1%3%2%0%1%
(1)Unaudited supplementary information is a weighted average derived from the incurred losses and allocated loss adjustment expenses, net of reinsurance triangle and cumulative paid losses and allocated loss adjustment expenses, net of reinsurance triangle.

Bermuda Casualty

Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended · As of December 31, 2025
November 30, · December 31, · IBNR (1) · Cumulative Number of Reported Claims
Accidentyear · 2016 (unaudited) · 2017 (unaudited) · 2018 (unaudited) · 2019 (unaudited) · 2020 (unaudited) · 2021 (unaudited) · 2022 (unaudited) · 2023 (unaudited) · 2024 (unaudited) · 2025
2016$44,749$49,876$54,253$54,619$56,863$56,353$60,342$54,997$57,154$60,949$4,1897
201784,75496,345101,443105,558113,594126,190137,924139,565136,8933,89841
2018101,397115,594123,114121,692131,717133,476142,520155,77022,30539
201985,45496,207101,614100,758105,39098,242103,06318,64419
202081,92584,49388,40088,63288,99291,79823,66521
202169,76679,09680,01579,18376,69733,3627
2022110,317110,095107,522105,78460,8643
2023169,608171,462181,358104,02330
2024268,201273,567220,00110
2025365,559343,695—
Total$1,551,438$834,646177
(1)Total of incurred but not reported liabilities plus expected development on reported claims
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended
November 30, · December 31,
Accident year2016 (unaudited)2017 (unaudited)2018 (unaudited)2019 (unaudited)2020 (unaudited)2021 (unaudited)2022 (unaudited)2023 (unaudited)2024 (unaudited)2025
2016$1,541$5,169$12,678$20,504$27,103$35,482$39,381$41,115$44,726$45,959
20173,79210,96122,82950,47170,54891,855106,013117,341120,701
20183,78222,80050,90366,88970,93987,677105,495115,073
20193,96511,09423,44536,16153,52858,93070,555
20205,41714,49519,71335,04749,76858,033
20211,9344,52311,25526,96233,820
20226964,74414,56528,673
20232,02521,82146,863
20248,20320,830
20254,246
Total$544,753
Outstanding liabilities for accident year 2015 and prior, net of reinsurance10,338
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance$1,017,023
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance(1)
Years1 (unaudited)2 (unaudited)3 (unaudited)4 (unaudited)5 (unaudited)6 (unaudited)7 (unaudited)8 (unaudited)9(unaudited)
2%7%12%15%11%11%10%6%4%
(1)Unaudited supplementary information is a weighted average derived from the incurred losses and allocated loss adjustment expenses, net of reinsurance triangle and cumulative paid losses and allocated loss adjustment expenses, net of reinsurance triangle.

Bermuda Specialty

Incurred Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended · As of December 31, 2025
November 30, · December 31, · IBNR (1) · Cumulative Number of Reported Claims
Accidentyear · 2016 (unaudited) · 2017 (unaudited) · 2018 (unaudited) · 2019 (unaudited) · 2020 (unaudited) · 2021 (unaudited) · 2022 (unaudited) · 2023 (unaudited) · 2024 (unaudited) · 2025
2016$38,154$34,835$28,913$23,171$19,826$16,850$15,846$15,851$15,684$15,502$42258
201757,52844,15636,23029,59024,47026,82027,33426,21626,29742774
201858,55152,42048,32345,09638,65839,92040,38640,10944289
201962,07556,18948,87449,11448,50849,85749,55763112
202063,17656,80752,19554,64554,58653,8801,993116
202153,73246,02335,61033,49934,2664,93033
2022117,538114,225111,565105,47956,12094
202362,09570,78354,29525,26728
202482,30693,85963,96919
2025103,47686,06634
Total$576,720$239,699657
(1)Total of incurred but not reported liabilities plus expected development on reported claims
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance
For the years ended
November 30, · December 31,
Accident year2016 (unaudited)2017 (unaudited)2018 (unaudited)2019 (unaudited)2020 (unaudited)2021 (unaudited)2022 (unaudited)2023 (unaudited)2024 (unaudited)2025
2016$2,938$8,661$5,632$10,814$13,116$13,589$13,810$14,413$14,603$14,763
20172,21710,19414,11416,41717,72622,63824,38424,26724,697
20187,60719,32625,82628,22327,78933,65336,45737,027
20196,37320,50529,08336,47245,06242,67943,651
20209,16025,58532,65343,22647,04748,915
20213,8627,24815,93819,11424,879
20223,46517,08629,00840,051
20235,02814,23322,848
20244,70616,760
20256,137
Total$279,728
Outstanding liabilities for accident year 2015 and prior, net of reinsurance574
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance$297,566
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance(1)
Years1 (unaudited)2 (unaudited)3 (unaudited)4 (unaudited)5 (unaudited)6 (unaudited)7 (unaudited)8 (unaudited)9 (unaudited)
9%20%14%13%10%6%4%1%1%
(1)Unaudited supplementary information is a weighted average derived from the incurred losses and allocated loss adjustment expenses, net of reinsurance triangle and cumulative paid losses and allocated loss adjustment expenses, net of reinsurance triangle.

Reconciliation

December 31,
($ in thousands)2025
Net outstanding liabilities
International - Property$114,415
International - Casualty686,273
International - Specialty528,487
Bermuda - Property355,734
Bermuda - Casualty1,017,023
Bermuda - Specialty297,566
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance2,999,498
Reinsurance recoverable on unpaid claims
International - Property94,211
International - Casualty686,437
International - Specialty206,247
Bermuda - Property74,190
Bermuda - Casualty233,248
Bermuda - Specialty81,524
Total reinsurance recoverable on unpaid claims1,375,857
Other insurance lines(8,105)
Unallocated loss adjustment expenses47,926
Total gross liability for unpaid losses and loss adjustment expenses$4,415,176
  1. Segment Reporting

The Company has determined its reportable business segments based on the information used by management in assessing performance and allocating resources to underwriting operations and has identifiedtwo reportable business segments - International and Bermuda. Each of the Company's identified reportable segments has a Chief Executive Officer who is responsible for the overall profitability of their segment and who regularly reports and is directly accountable to the chief operating decision maker ("CODM"): the Chief Executive Officer of the consolidated group. The CODM's responsibilities include providing leadership to all levels of employees; developing culture, values, and ethos; setting the Company's strategy, vision and direction; and overall responsibility for the success and profitability of the Company, including evaluating segment performance.

The CODM evaluates reportable segment performance based on the segments' respective underwriting income or loss. Underwriting income or loss is calculated as net premiums earned less losses and loss adjustment expenses, acquisition costs, and other underwriting expenses, net of third party fee income. General and administrative expenses not incurred by the reportable segments are included in corporate and other expenses as part of the reconciliation of net underwriting income or loss to net income or loss attributable to common shareholders. As the Company does not manage its assets by reportable segment, investment income and assets are not allocated to reportable segments.

The Company's core business is underwriting and its underwriting results are reflected in its reportable segments: (1) International, which is comprised of property, casualty and specialty insurance and reinsurance classes of business originating from the Company’s London, Dublin, and Hamilton Select operations; and (2) Bermuda, which is comprised of property, casualty and specialty insurance and reinsurance classes of business originating from Hamilton Re, Bermuda and Hamilton Re US and subsidiaries. The Company considers many factors, including the nature of each segment’s products, client types, production sources, distribution methods and the regulatory environment, in determining the aggregated operating segments.

Corporate includes net realized and unrealized gains (losses) on investments, net investment income (loss), other income (loss) not incurred by the reportable segments, net foreign exchange gains (losses), general and administrative expenses not incurred by the reportable segments, amortization of intangible assets, interest expense, and income tax expense (benefit).

($ in thousands)
For the Year Ended December 31, 2025 · International · Bermuda · Corporate · Total
Gross premiums written$1,517,060$1,406,085$—$2,923,145
Net premiums written$1,132,061$1,155,482$—$2,287,543
Net premiums earned$1,055,377$1,054,399$—$2,109,776
Third party fee income12,02714,574—26,601
Losses and loss adjustment expenses571,298687,223—1,258,521
Acquisition costs276,676230,614—507,290
Other underwriting expenses167,22154,522—221,743
Underwriting income (loss)$52,209$96,614$—$148,823
Net realized and unrealized gains (losses) on investments687,111687,111
Net investment income (loss)88,02188,021
Net foreign exchange gains (losses)(5,985)(5,985)
Corporate expenses(57,167)(57,167)
Amortization of intangible assets(15,709)(15,709)
Interest expense(20,189)(20,189)
Income (loss) before income tax824,905
Income tax (expense) benefit15,12415,124
Net income (loss)840,029
Net income (loss) attributable to non-controlling interest263,359263,359
Net income (loss) attributable to common shareholders$576,670
Key Ratios
Attritional loss ratio - current year54.0%54.6%54.4%
Attritional loss ratio - prior year development(2.8)%(1.6)%(2.2)%
Catastrophe loss ratio - current year2.9%13.9%8.4%
Catastrophe loss ratio - prior year development0.0%(1.7)%(0.9)%
Loss and loss adjustment expense ratio54.1%65.2%59.7%
Acquisition cost ratio26.2%21.9%24.0%
Other underwriting expense ratio14.7%3.8%9.2%
Combined ratio95.0%90.9%92.9%
($ in thousands)
For the Year Ended December 31, 2024 · International · Bermuda · Corporate · Total
Gross premiums written$1,308,460$1,114,122$—$2,422,582
Net premiums written$969,605$951,564$—$1,921,169
Net premiums earned$886,934$847,795$—$1,734,729
Third party fee income16,3177,435—23,752
Losses and loss adjustment expenses498,023512,150—1,010,173
Acquisition costs216,971171,960—388,931
Other underwriting expenses148,82461,189—210,013
Underwriting income (loss)$39,433$109,931$—$149,364
Net realized and unrealized gains (losses) on investments511,407511,407
Net investment income (loss)63,26763,267
Net foreign exchange gains (losses)(3,231)(3,231)
Corporate expenses(61,111)(61,111)
Amortization of intangible assets(15,520)(15,520)
Interest expense(22,616)(22,616)
Income (loss) before income tax621,560
Income tax (expense) benefit(8,402)(8,402)
Net income (loss)613,158
Net income (loss) attributable to non-controlling interest212,729212,729
Net income (loss) attributable to common shareholders$400,429
Key Ratios
Attritional loss ratio - current year53.5%52.7%53.1%
Attritional loss ratio - prior year development(0.4)%0.5%0.0%
Catastrophe loss ratio - current year3.9%8.9%6.3%
Catastrophe loss ratio - prior year development(0.8)%(1.7)%(1.2)%
Loss and loss adjustment expense ratio56.2%60.4%58.2%
Acquisition cost ratio24.5%20.3%22.4%
Other underwriting expense ratio14.9%6.3%10.7%
Combined ratio95.6%87.0%91.3%
($ in thousands)
For the Year Ended December 31, 2023 · International · Bermuda · Corporate · Total
Gross premiums written$1,105,522$845,516$—$1,951,038
Net premiums written$770,399$710,039$—$1,480,438
Net premiums earned$703,508$615,025$—$1,318,533
Third party fee income9,6858,549—18,234
Losses and loss adjustment expenses362,137352,466—714,603
Acquisition costs186,698122,450—309,148
Other underwriting expenses127,40255,763—183,165
Underwriting income (loss)$36,956$92,895$—$129,851
Net realized and unrealized gains (losses) on investments209,610209,610
Net investment income (loss)30,45630,456
Other income (loss), excluding third party fee income397397
Net foreign exchange gains (losses)(6,185)(6,185)
Corporate expenses(76,691)(76,691)
Amortization of intangible assets(10,783)(10,783)
Interest expense(21,434)(21,434)
Income (loss) before income tax255,221
Income tax (expense) benefit25,06625,066
Net income (loss)280,287
Net income (loss) attributable to non-controlling interest21,56021,560
Net income (loss) attributable to common shareholders$258,727
Key Ratios
Attritional loss ratio - current year53.2%51.1%52.2%
Attritional loss ratio - prior year development(3.5)%2.3%(0.8)%
Catastrophe loss ratio - current year1.5%5.1%3.2%
Catastrophe loss ratio - prior year development0.3%(1.2)%(0.4)%
Loss and loss adjustment expense ratio51.5%57.3%54.2%
Acquisition cost ratio26.5%19.9%23.4%
Other underwriting expense ratio16.7%7.7%12.5%
Combined ratio94.7%84.9%90.1%

The following table presents gross premiums written by the geographical location of the Company's subsidiaries:

Years Ended December 31,
($ in thousands)202520242023
International
Lloyd's of London$953,446$792,830$677,415
Ireland406,396399,061349,896
U.S.157,218116,56978,211
Total International1,517,0601,308,4601,105,522
Bermuda1,406,0851,114,122845,516
Total$2,923,145$2,422,582$1,951,038
  1. Debt and Credit Facilities

Debt

On June 10, 2025, Hamilton Group entered into a $150 million term loan credit arrangement (the "Facility") with various lenders as arranged by Wells Fargo Securities, LLC. The Facility replaces Hamilton Group's $150 million term loan credit agreement, as amended through and including June 23, 2022, between Hamilton Group and the lenders thereto (as amended the "Existing Loan Agreement"). The Facility will be used to refinance the indebtedness outstanding under the Existing Loan Agreement. All or a portion of the loan issued under the Facility bears interest, at the option of Hamilton Group, at either (a) a base rate plus an applicable margin or (b) the Adjusted Term Secured Overnight Financing Rate ("SOFR") plus an applicable margin, in each case with the applicable margin determined with reference to the Company's long-term issuer default rating as assigned by Fitch. The Facility matures on June 9, 2028, unless accelerated pursuant to the terms of the Facility, and it contains usual and customary representations, warranties, conditions and covenants for bank loan facilities of this type. The Facility also includes financial covenants, including a financial strength rating test, a minimum consolidated tangible net worth test and a maximum consolidated indebtedness to total capitalization ratio. As at December 31, 2025, the Company was in compliance with all covenants.

The following table presents the gross outstanding loan balance, loan fair value and unamortized loan issuance costs:

December 31,
($ in thousands)20252024
Outstanding loan balance$150,000$150,000
Loan fair value150,280150,463
Unamortized loan issuance costs$257$55

Debt issuance costs are amortized over the period during which the Facility is outstanding, as an offset to net investment income (loss). The Company amortized debt issuance costs of $0.1 million or less in each of the years ended December 31, 2025, 2024 and 2023. The Company’s debt is classified as Level 3 within the fair value hierarchy because it is valued using an income approach, which utilizes a discounted cash flow technique that considers the credit profile of the Company.

Credit Facilities

The Company has several available letter of credit ("LOC") facilities and a revolving loan facility provided by commercial banks. The letter of credit facilities are utilized to provide collateral to reinsureds of Hamilton Re and its affiliates to the extent required under insurance and reinsurance agreements and to support capital requirements at Lloyd’s.

On December 5, 2018 and December 27, 2018, Hamilton Re entered into a Master Agreement for Issuance of Payment Instruments and a Facility Letter for Issuance of Payment Instruments respectively, with CitiBank Europe Plc ("CitiBank Europe"), under which CitiBank Europe agreed to provide an uncommitted secured letter of credit facility for the issuance of standby letters of credit or similar instruments in multiple currencies. On November 15, 2024, letter of credit capacity under this facility was increased to $250 million. At all times during which it is a party to the facility, Hamilton Re is obligated to pledge to CitiBank Europe cash and/or securities with a value that equals or exceeds the aggregate face amount of its then-outstanding letters of credit. The Master Agreement contains events of default customary for facilities of this type. In the facility letter, Hamilton Re makes representations and warranties that are customary for facilities of this type and agrees that it will comply with certain informational and other undertakings.

On June 10, 2025, Hamilton Group and Hamilton Re entered into a $450 million credit agreement with a syndication of lenders (the "Unsecured Facility"). Under the Unsecured Facility, the lenders have agreed to provide up to an aggregate of $450 million of letter of credit capacity for Hamilton Re, up to $150 million of which may be utilized for revolving loans to be issued to Hamilton Group. At December 31, 2025, there wereno loan amounts outstanding under the Unsecured Facility. Letters of credit issued under the Unsecured Facility bear interest at a rate determined by Hamilton Group’s long-term issuer default rating, while revolving loans, if drawn, accrue interest at the option of Hamilton Group at either (a) a base rate plus an applicable margin or (b) Adjusted Term SOFR plus an applicable margin. In each case, the applicable margin is determined based on Hamilton Group’s long-term issuer default rating as assigned by Fitch. Currently, any letters of credit issued under the facility bear interest at a rate of 125 basis points. Revolving loans, if issued, are subject to a fee equal to the prime rate plus 50 basis points or Adjusted Term SOFR plus a margin of 150 basis points. To the extent such loans are issued, the available letter of credit capacity shall decrease proportionally, such that the aggregate credit exposure for the lenders under the Unsecured Facility is $450 million. Amounts unutilized under the Unsecured Facility are subject to a fee based upon Hamilton Group's long-term issuer default rating as assigned by Fitch. This currently bears a fee of 17.5 basis points. The Unsecured Facility is subject to representations and warranties, affirmative and negative covenants and events of default that the Company considers customary for similar facilities. The Unsecured Facility also includes financial covenants, including a financial strength rating test, a minimum consolidated tangible net worth test and a maximum consolidated indebtedness to total capitalization ratio. Capacity is provided by Wells Fargo, National Association, Truist Bank, Commerzbank AG, New York Branch, Citizens Bank, N.A., HSBC Bank USA, National Association, and Barclays Bank PLC. Unless renewed or otherwise terminated in accordance with its terms, the Unsecured Facility has a maturity date of June 9, 2028.

On October 23, 2025, Hamilton Re amended its letter of credit facility agreement with UBS AG ("UBS") under which UBS and certain of its affiliates agreed to make available to Hamilton Re a secured letter of credit facility in an amount that is equal to the greater of (i) $25 million and (ii) the LOC amount issued and outstanding, provided that the amount shall not at any time be greater than $75 million, for a term that will expire on October 23, 2026. The facility bears a fee of 140 basis points on the total available capacity.

In addition, on October 20, 2025, Hamilton Re amended the unsecured letter of credit facility agreement that it utilizes to provide Funds at Lloyd's ("FAL") ("FAL LOC Facility") to support the FAL requirements of Syndicate 4000. Capacity is provided by ING Bank N.V., London Branch, Commerzbank AG, New York Branch, and Deutsche Bank AG, London Branch. The FAL LOC Facility was renewed in the amount of $260 million for a term that expires on December 31, 2029. The facility bears a fee of 150 basis points on the borrowed amount.

The Company’s obligations under its credit facilities require Hamilton Group, Hamilton Re and the other parties thereto to comply with various financial and reporting covenants. All applicable entities were in compliance with all such covenants at December 31, 2025.

Certain of the Company's credit facilities are secured by pledged interests in the TS Hamilton Fund, the Company's fixed income security portfolio, or cash. The Company’s credit facilities and associated securities pledged, were as follows:

($ in thousands)December 31,2025
Available letter of credit and revolving loan facilities - commitments$1,002,535
Available letter of credit and revolving loan facilities - in use805,011
Security pledged under letter of credit and revolving loan facilities:
Pledged interests in TS Hamilton Fund$103,140
Pledged interests in fixed income portfolio254,802
Cash(1)16,385

(1) Cash pledged as security under letter of credit and revolving loan facilities is included in restricted cash securing other underwriting obligations under Pledged Assets in Note 3, Investments.

The Company has recognized interest expense related to the above debt and credit facilities of $20.2 million, $22.6 million and $21.4 million for the years ended December 31, 2025, 2024 and 2023, respectively.

  1. Share Capital

Authorized and Issued

Hamilton Group’s share capital is comprised as follows:

($ in thousands, except share information)
Authorized:
Common shares of $0.01 par value each (2025 and 2024: 150,000,000)
December 31,
Issued, outstanding and fully paid:20252024
Class A common shares (2025: 17,320,078 and 2024: 17,820,078)$173$178
Class B common shares (2025: 66,305,707 and 2024: 64,271,249)663643
Class C common shares (2025: 15,403,649 and 2024: 19,375,670)154194
Total$990$1,015

The following is a summary of the activity related to common shares authorized:

Class AClass BClass CUnclassifiedTotal
Balance - December 31, 202253,993,69050,480,68430,525,626—135,000,000
Increase in authorized share capital—15,000,000——15,000,000
Share class conversions(25,348,883)6,856,668(4,981,397)23,473,612—
Balance - December 31, 202328,644,80772,337,35225,544,22923,473,612150,000,000
Share class conversions(1,700,000)7,868,559(6,168,559)——
Balance - December 31, 202426,944,80780,205,91119,375,67023,473,612150,000,000
Share class conversions(500,000)4,472,021(3,972,021)——
Balance - December 31, 202526,444,80784,677,93215,403,64923,473,612150,000,000

The following is a summary of the activity related to common shares issued and outstanding:

Class AClass BClass CTotal
Balance - December 31, 202230,520,07842,042,15530,525,626103,087,859
Share class conversions(1,875,271)6,856,668(4,981,397)—
IPO shares issued—6,250,000—6,250,000
Vesting of awards—735,013—735,013
Exercise of warrants—271,097—271,097
Director share awards granted—44,892—44,892
Share repurchases—(163,758)—(163,758)
Balance - December 31, 202328,644,80756,036,06725,544,229110,225,103
Share class conversions(1,700,000)7,868,559(6,168,559)—
Vesting of awards—2,291,495—2,291,495
Exercise of warrants—245,779—245,779
Director share awards granted—20,383—20,383
Share repurchases(9,124,729)(2,191,034)—(11,315,763)
Balance - December 31, 202417,820,07864,271,24919,375,670101,466,997
Share class conversions(500,000)4,472,021(3,972,021)—
Vesting of awards—2,612,957—2,612,957
Share repurchases—(5,050,520)—(5,050,520)
Balance - December 31, 202517,320,07866,305,70715,403,64999,029,434

On November 4, 2025, the Board of Directors authorized the repurchase of the Company's common shares in the aggregate amount of $150.0 million, in addition to remaining amounts under the prior authorization (collectively, the "Authorization"), under which the Company may repurchase shares through open market repurchases and/or privately negotiated transactions. The Authorization will expire when the Company has repurchased the full value of shares authorized, unless terminated earlier by the Board of Directors. All shares repurchased under the Authorization were subsequently cancelled. As of December 31, 2025, $178.5 million remained available for repurchase under the Authorization.

Years Ended December 31,
($ in thousands except per share amounts)20252024
Class B Shares repurchased4,222,1951,485,813
Aggregate repurchase price$93,445$28,067
Average price per share$22.13$18.89

On May 8, 2024, the Company entered into an agreement to repurchase 9.1 million Class A common shares at $12.00 per share (the "Share Repurchase"). The total purchase price was $109.5 million. The common shares purchased by the Company were cancelled following the repurchase transaction.

In general, holders of Class A common shares and Class B common shares have one vote for each common share held while the Class C common shares have no voting rights, except as required by law. However, each holder of Class A common shares and Class B common shares is limited to voting (directly, indirectly or constructively, as determined for U.S. federal income tax purposes) that number of common shares equal to 9.5% of the total combined voting power of all classes of shares of the Company (or, in the case of a class vote by the holders of our Class B common shares, such as in respect of the election or removal of directors other than for directors who are appointed by certain shareholders pursuant to the Shareholders Agreement and our Bye-laws, an amount calculated by multiplying (a)9.5% and (b) the quotient of dividing (x) the total number of directors by (y) the number of directors elected by holders of Class B common shares). In addition, the Board of Directors may, in its absolute discretion, limit a shareholder’s voting rights when it deems it appropriate to do so to avoid certain material adverse tax, legal or regulatory consequences to the Company, any subsidiary of the Company, or any direct or indirect shareholder or its affiliates.

The Company Bye-laws provide for the automatic redesignation of shares upon any transfer, whether or not for value, from (i) Class A common shares to Class B common shares and from (ii) Class C common shares to Class B common shares. Upon notice from a Class A Member to the Company that certain Class B common shares are held by a Class A Member or a Permitted Transferee thereof, if so requested by the Class A Member and upon approval by a Simple Majority of the Board, such Class B common shares shall convert automatically into the same number of Class A common shares. The number of authorized and issued Class B common shares shall be reduced by the aggregate number of such issued Class B common shares so converted and the number of authorized and issued Class A common shares shall be correspondingly increased by the same amount. Upon notice from a Class A Member and/or Class B Member to the Company and upon approval by a Simple Majority of the Board, such consent not to be unreasonably withheld or unduly delayed, such Class A common shares and/or Class B common shares shall be redesignated as Class C common shares. In such instance, the authorized and issued number of Class A common shares and/or Class B common shares shall be reduced by the aggregate number of such shares so converted and the number of Class C common shares shall be correspondingly increased by the same amount. Upon notice from a Class C Member to the Company and upon approval of a Simple Majority of the Board, such consent not to be unreasonably withheld or unduly delayed, such Class C common shares shall be redesignated Class B common shares. In such instance, the authorized and issued number of Class C common shares shall be reduced by the aggregate number of such Class C common shares so converted and the number of authorized and issued Class B common shares shall be correspondingly increased by the same amount.

During the years ended December 31, 2025 and 2024,0.5 million and 1.7 million, respectively, Class A common shares were converted into Class B common shares at the request of the Class A Members and as approved by the Board.

During the years ended December 31, 2025 and 2024,4.0 million and 7.9 million, respectively, Class C common shares were converted into Class B common shares at the request of the respective Class C Members and as approved by the Board.

  1. Share Incentive Plans

The Company is authorized to issue restricted stock units ("RSUs"), performance stock units ("PSUs"), restricted stock awards ("RSAs"), options (including incentive stock options and non-qualified stock options), stock appreciation rights, stock bonus awards, other stock based awards, or any combination thereof to its employees and directors under the 2023 Equity Incentive Plan, which was adopted by the Board of Directors and approved by the shareholders in connection with the Company's IPO. The 2023 Equity Incentive Plan became effective upon the completion of the IPO and replaced the 2013 Equity Incentive Plan. No new awards will be granted under the 2013 Equity Incentive Plan.

The total number of Class B common shares available for issuance under the 2023 Equity Incentive Plan may be increased on the first day of each fiscal year for a period of not more than nine years, commencing on the first day of the second fiscal year following the date on which the 2023 Equity Incentive Plan is adopted in an amount equal to the lesser of (i) two percent (2%) of the outstanding Class B common shares on the last day of the immediately preceding fiscal year, and (ii) such number of Class B common shares as determined by the Company's Board of Directors (or a committee thereof) in its discretion. As of December 31, 2025,5,452,566 Class B common shares are available for issuance of awards of all types.

Separately, the Value Appreciation Pool ("VAP") is a long-term incentive compensation plan that rewarded employees with 10% of the increase in the multiple of the Company's estimated fair market value to GAAP shareholders' equity between the December 1, 2020 VAP inception date and the Company's Initial Public Offering on November 10, 2023.

The following table presents the compensation expense recognized relating to each award type:

Years Ended December 31,
($ in thousands)202520242023
Share based compensation expense:
RSUs$15,575$12,933$11,358
VAP RSUs1,8059,21030,352
PSUs11,8808,2412,668
Total share based compensation expense:29,26030,38444,378
Tax benefit(1,902)(1,750)(1,251)
Share based compensation expense, net of taxes:$27,358$28,634$43,127

The following table presents the unrecognized compensation expense relating to each award type and the weighted-average period in years over which it is expected to be recognized.

December 31, 2025
($ in thousands, except for weighted-average recognition period)Unrecognized Share Based Compensation ExpenseWeighted-Average Recognition Period (in years)
Unrecognized share based compensation expense:
RSUs$9,9260.9
PSUs9,1111.4
Total unrecognized share based compensation expense:$19,037

The aggregate fair value of vested awards for the years ended December 31, 2025, 2024 and 2023 was $60.0 million, $38.6 million, and $10.1 million, respectively.

Restricted Stock Units

The grant date fair value of restricted stock awards is established at the fair market value of the Company’s Class B common shares on the date of grant. During the years ended December 31, 2025, 2024 and 2023, the Company granted employees RSUs with a total estimated fair value of $15.8 million, $14.5 million, and $14.2 million, respectively, which generally vest over athree-year period. During the years ended December 31, 2025 and 2024, the Company granted non-employee directors RSUs with a total fair value of $1.5 million and $1.4 million, respectively, which vest over aone-year period.

The following table presents a roll forward of the Company’s RSUs based on expected vesting:

Year Ended December 31, 2025
Number of RSUsWeighted-Average Grant Date Fair Value
Balance, beginning of year1,954,396$14.43
Granted931,268$18.59
Vested(902,698)$14.53
Forfeited(116,234)$15.57
Balance, end of year1,866,732$16.39

Value Appreciation Pool Restricted Stock Units

The VAP, which was granted by a then nonpublic company, was initially measured as a liability award at intrinsic value and no compensation cost was recorded over the period December 1, 2020 to March 31, 2023. On May 15, 2023, the Company became a public business entity and the VAP was remeasured at fair value. The fair value of the compensation cost was estimated at each reporting date and expensed over the period for which the employee is required to provide services in exchange for the award, with any changes recorded in compensation expense by a cumulative catch-up adjustment.

The Company consummated an IPO of its Class B common shares and, on November 10, 2023, closed its first day of trading. In accordance with the Compensation Committee's decision that the VAP award would be settled in shares if triggered by an IPO, the VAP became subject to equity award accounting. The VAP RSUs vested in two tranches, subject to continued service:50% on each of the first and second anniversaries of the November 10, 2023 trigger event. Participants who left prior to vesting forfeited any unsettled portion of their awards.

The Company recorded VAP compensation expense of $1.8 million, $9.2 million and $34.5 million for the years ended December 31, 2025, 2024 and 2023, respectively. Of the total expense recognized for the year ended December 31, 2023, $4.2 million was recorded as an adjustment to retained earnings in "Share compensation expense" in the second quarter of 2023.

The following table presents a roll forward of the Company’s VAP RSUs based upon vesting:

Year Ended December 31, 2025
Number of VAP RSUsWeighted-Average Grant Date Fair Value
Balance, beginning of year1,528,809$15.32
Vested(1,442,064)$15.32
Forfeited(86,745)$15.32
Balance, end of year—

Performance Stock Units

During the years ended December 31, 2025 and 2024, the Company granted PSUs that vest over three years and entitle participants to between 0-200% of the target award. Settlement of the PSUs is subject to achievement of defined performance metrics and to each participant's continued employment through each vesting date.

During the year ended December 31, 2023, the Company granted PSUs that vest on the third January 1st following their grant dates and entitle participants to between 0-200% of the target award. All other significant terms and conditions are consistent with the PSUs described above.

The following table presents a roll forward of the Company's PSUs based upon expected vesting:

Year Ended December 31, 2025
Number of PSUsWeighted-Average Grant Date Fair Value
Balance, beginning of year1,303,448$15.47
Granted254,766$18.41
Vested(265,968)$15.47
Change in performance factor329,978$17.74
Balance, end of year1,622,224$16.39

Warrants

The Company's warrants were issued in 2014, had a 10-year term and were fully exercised by December 31, 2024. Each warrant entitled the holder to purchase one common share of Hamilton Group at an exercise price of $10.00. The following table presents a summary of those warrants:

(Intrinsic value in $ in thousands)Year Ended December 31, 2024
Warrants Outstanding and ExercisableNumber of WarrantsWeighted-Average Exercise PriceWeighted-Average Grant Date Fair ValueTotal Intrinsic ValueWeighted-Average Remaining Contractual Term
At December 31, 2023810,000$10.00$4.52$4,0100.3
Exercised(810,000)$10.00$4.52$4,140
At December 31, 2024—$—$—$—0.0

Board of Directors' Fees

Prior to the 2025 inception of non-employee director RSU Grants, the Company settled a portion of its board of directors fees in shares at each director's option. Expense relating to stock-settled directors' fees for the years ended December 31, 2024 and 2023 was $0.6 million and $0.6 million, respectively.

  1. Earnings Per Share

The following table sets forth the computation of basic and diluted income (loss) per common share:

Years Ended December 31,
($ and shares in thousands, except per share information)202520242023
Numerator:
Net income (loss) attributable to common shareholders$576,670$400,429$258,727
Denominator:
Weighted average common shares outstanding - basic100,364105,133104,563
Effect of dilutive securities3,4803,9681,640
Weighted average common shares outstanding - diluted103,844109,101106,203
Basic income (loss) per share attributable to common shareholders$5.75$3.81$2.47
Diluted income (loss) per share attributable to common shareholders$5.55$3.67$2.44

For the years ended December 31, 2025, 2024 and 2023, common shares available for issuance under share based compensation plans of fewer than 0.1 million, Nil, and 0.4 million, respectively, were excluded from the calculation of diluted income (loss) per share because the assumed exercise or issuance of such shares would be anti-dilutive.

  1. Income Taxes

Hamilton Group and its Bermuda domiciled subsidiaries were not subject to income tax in Bermuda in 2024 and prior. On December 27, 2023, Bermuda enacted a 15% corporate income tax that generally became effective on January 1, 2025. The legislation defers the effective date until 2030 for Bermuda companies that meet certain requirements. Hamilton Group expects to meet the requirements to remain exempt until 2030. The legislation includes a provision referred to as the Economic Transition Adjustment ("ETA"), which is intended to provide a fair and equitable transition into the tax regime. As of December 31, 2025, the Company holds a deferred tax asset of $35.4 million relating to the ETA on its balance sheet, which it expects to utilize to reduce future taxes paid. The Company expects to incur increased taxes on its Bermuda-sourced income beginning in 2030.

Hamilton Group has global subsidiaries and branches that are subject to tax in the jurisdictions in which they operate. The jurisdictions in which Hamilton Group’s subsidiaries and branches are currently subject to tax are the United Kingdom, Ireland and the United States. The Company and some of its subsidiaries file income tax returns in the U.S. federal jurisdiction, various U.S. states, and certain foreign jurisdictions.

Income (loss) before taxes by tax jurisdiction is as follows:

Years Ended December 31,
($ in thousands)202520242023
Jurisdiction
Domestic:
Bermuda$722,159$581,915$247,113
Foreign:
United States30,5669,122(2,263)
United Kingdom71,16132,24912,362
Ireland1,019(1,726)(1,991)
Income (loss) before income tax$824,905$621,560$255,221

Income tax expense (benefit) consists of the following components:

Years Ended December 31,
($ in thousands)202520242023
Current income tax expense (benefit)
Bermuda$—$—$—
United States14,0049,92810,913
United Kingdom329161
Ireland(7)(111)92
Total current tax expense (benefit)14,0299,90811,066
Deferred income tax expense (benefit)
Bermuda—(375)(35,063)
United States(1,685)——
United Kingdom(27,425)(1,027)(1,087)
Ireland(43)(104)18
Total deferred tax expense (benefit)(29,153)(1,506)(36,132)
Total income tax expense (benefit)$(15,124)$8,402$(25,066)

The following table reconciles taxes pursuant to the format prescribed by ASU 2023-09 Income Taxes, which requires expanded disclosures for all years beginning after December 15, 2024. Although the Company is not an in-scope company for purposes of the Bermuda Corporate income tax, the reconciliation is presented using Bermuda’s statutory income tax rate for in-scope companies of 15%. This presentation as an in-scope company with adjustment for the effect of the Bermuda Limited International Footprint exemption aligns with the intent of ASU 2023-09.

($ in thousands)Amount%
Bermuda statutory tax rate at 15%$123,73615.0%
Foreign tax effects:
United Kingdom:
Statutory tax rate differential7,1160.9%
Change in valuation allowance(43,392)(5.3)%
United States:
Statutory tax rate differential1,8340.2%
State and local income taxes, net of federal benefit30.0%
Change in valuation allowance(2,429)(0.3)%
Withholding tax9,1791.1%
Ireland:
Statutory tax rate differential(25)0.0%
Change in valuation allowance(128)0.0%
Nontaxable or Nondeductible Items:
Bermuda Limited International Footprint Exemption(68,820)(8.3)%
Non-controlling interest(39,504)(4.8)%
Share based compensation(2,582)(0.3)%
Other2420.0%
Other adjustments(354)0.0%
Total income tax expense (benefit):$(15,124)(1.8)%

For comparative purposes, the following table presents a reconciliation of taxes calculated using the historical 0% Bermudian statutory rate (the tax rate at which the majority of Hamilton Group's worldwide operations are effectively taxed) to the income tax expense (benefit) on pre-tax income (loss):

Years Ended December 31,
($ in thousands)202520242023
Expected tax provision at Bermuda statutory tax rate of 0%$—$—$—
Permanent differences:
Taxes on earnings subject to rate other than Bermuda statutory rate24,3369,7622,182
Change in valuation allowance(45,948)(12,496)(3,567)
Other permanent adjustments(2,316)(318)(42)
Other prior year adjustments(408)2,234376
Tax rate changes——273
Withholding tax9,1799,38110,377
Bermuda economic transition adjustment——(35,063)
State income tax33(161)398
Total income tax expense (benefit):$(15,124)$8,402$(25,066)

The following table presents net income tax (refunds) payments by jurisdiction for the years ended December 31, 2025, 2024 and 2023, respectively.

Years Ended December 31,
202520242023
Bermuda corporate income tax$—$—$—
Foreign taxes
United States16,72310,6614,415
Other foreign(254)(240)(204)
Total net income tax payments (refunds)$16,469$10,421$4,211

Deferred tax assets and liabilities are valued at the tax rate at which they are expected to be realized. In June 2021, the U.K. enacted a tax rate of 25% with an effective date of April 1, 2023, an increase from the previous corporation tax rate of 19%. Accordingly, for the year ended November 30, 2021, the Company revalued all of its U.K. deferred tax assets and liabilities that were expected to reverse after December 31, 2023. Revaluations of U.K. deferred tax assets and liabilities continued to occur until January 1, 2024, when both the current and deferred tax rates were aligned at 25%. The revaluation of the deferred tax assets resulted in a tax expense (benefit) of $Nil, $Nil and $0.3 million for the years ended December 31, 2025, 2024 and 2023, respectively. The financial statement impact of the rate changes were offset in each period by a valuation allowance, resulting in a related net tax expense (benefit) after valuation allowance of $Nil, $Nil, and $0.1 million for the years ended December 31, 2025, 2024 and 2023, respectively.

Deferred taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts for tax purposes. The following table presents Hamilton Group’s significant deferred tax assets and liabilities:

December 31,
($ in thousands)20252024
Deferred tax assets:
U.K. net operating loss carryforwards$47,307$45,590
U.S. net operating loss carryforwards3,2513,255
Ireland net operating loss carryforwards204218
Bermuda intangible assets28,87528,875
Reserve for losses and loss adjustment expenses11,0349,198
Unearned premium reserve5,5825,486
Share based compensation2,8535,213
Foreign tax credit2,6301,949
Capital loss carryforward1,4721,733
Other—4,258
Total gross deferred tax assets103,208105,775
Less: valuation allowance(17,084)(63,032)
Total net deferred tax assets86,12442,743
Deferred tax liabilities:
U.K. intangible assets(13,163)(14,233)
Fixed assets(2,933)(3,520)
Lloyd's deferred taxable income(18,671)(3,340)
Other(1,000)(446)
Total deferred tax liabilities(35,767)(21,539)
Net deferred tax asset (liability)$50,357$21,204

Hamilton Group records a valuation allowance against deferred tax assets if it becomes more likely than not that all or a portion of a deferred tax asset will not be realized. Changes in valuation allowances from period to period are included in income tax expense (benefit) in the period of change. When evaluating the Company’s ability to realize the benefit of its deferred tax assets, the Company considers the relevant impact of all available positive and negative evidence, including historical earnings, expected future earnings, carryback and carryforward periods and strategies (if available) that would result in the realization of a deferred tax asset. Future realization of the Company’s deferred tax asset depends on the existence of sufficient taxable income of the appropriate character (for example, ordinary income versus capital gains) to utilize the deferred tax assets within the applicable carry-forward periods provided under the tax law.

Of the $17.1 million valuation allowance recorded at December 31, 2025, $9.2 million related to deferred tax assets on net operating losses and other deferred tax benefits in the U.K., $7.0 million related to deferred tax assets on net operating losses and other deferred tax benefits in the U.S. and $0.9 million related to deferred tax assets on net operating losses and other deferred tax benefits in Ireland. It is not expected that these companies will generate sufficient future taxable income to utilize their deferred tax assets.

In the fourth quarter of 2025, the Company recorded tax benefits of $43.4 million, $2.4 million and $0.2 million arising from the net release of valuation allowances against deferred tax assets in its U.K., U.S. and Irish domiciled subsidiaries, respectively. The Company's U.K. domiciled entities had previously built up substantial deferred tax assets, primarily due to net operating loss carryforwards, which primarily related to prior years' pre-tax losses in these entities. Valuation allowances had been established on these deferred tax assets prior to the fourth quarter of 2025 because the subsidiaries did not expect to earn sufficient future taxable income to utilize them. The profitability of the U.K. subsidiaries improved significantly in the past few years, supporting the conclusion that the majority of their deferred tax assets are realizable.

The Company had the following net operating loss carry-forwards, inclusive of cumulative currency translation adjustments:

($ in thousands)December 31, 2025
Tax jurisdictionLosses Carried ForwardTax EffectExpiration
Bermuda$—$—n/a
Ireland1,633204No expiry
United States15,4803,2512042-2045
United Kingdom$189,227$47,307No expiry

Recognition of the benefit of a given tax position is based upon whether a company determines that it is more likely than not that a tax position will be sustained upon examination based upon the technical merits of the position. At December 31, 2025, the Company believes that it has no uncertain tax positions that, if challenged on technical merits, would cause a material effect on the Company's audited consolidated financial statements.

Hamilton Group classifies all interest and penalties on income taxes as part ofincome tax expense (benefit). During the years ended December 31, 2025, 2024 and 2023, the Company recognized less than $0.1 million interest income or expense. There was no accrued interest as of December 31, 2025. With few exceptions, Hamilton Group is no longer subject to tax examinations by U.S. federal or state examinations before 2022 or non-U.S. tax examinations before 2021.

  1. Commitments and Contingencies

Concentrations of Credit Risks

Credit risk arises out of the failure of a counterparty to perform according to the terms of the contract. Instruments which potentially subject the Company to concentration of credit risk consist primarily of fixed maturity and short-term investments, cash and cash equivalents, premiums receivable and reinsurance balances recoverable. The Company limits the amount of credit exposure to any one financial institution and, except for the securities of the U.S. Government and U.S. Government related entities, none of the Company’s fixed maturity and short-term investments exceeded 10% of shareholders’ equity at December 31, 2025. The Company evaluates the financial condition of its reinsurers, who primarily consist of highly rated reinsurers and may require collateralization of those recoverable balances. See Note 2g, Credit Loss Provisions and Note 7, Reinsurance, for further details.

Operating Leases

The Company leases office space under operating leases in Bermuda, the United States, the United Kingdom, and Ireland. These leases expire at various dates through 2030, with a weighted average lease term of 2.0 years. In accordance with ASU 2016-02 Leases, the Company's balance sheet reflects a $6.7 million and $9.1 million right of use asset in "Other assets" and a discounted lease liability of $7.1 million and $9.2 million in "Accounts payable and accrued expenses", as at December 31, 2025 and 2024, respectively. The discounted lease liability was calculated with reference to weighted average discount rates of 5.38% and 5.30% as at December 31, 2025 and 2024, respectively. Leases including renewal options are recorded on the balance sheet when management is reasonably certain the options will be exercised. Operating lease expense for the years ended December 31, 2025, 2024 and 2023 was $3.5 million, $3.4 million and $3.8 million, respectively.

Future minimum lease payments under the leases are expected to be as follows:

($ in thousands)Minimum Lease Payments
Year ended December 31,
2026$3,110
20272,815
20281,299
2029670
2030118
Thereafter—
Total undiscounted lease liabilities8,012
Less: present value discount(871)
Total recorded lease liability at present value$7,141

Lloyd's Capital Requirements

Lloyd’s bases the capital funding requirements of the Company's corporate member, Hamilton Corporate Member Limited ("HCML"), on their latest approved Economic Capital Assessments which are determined by reference to their business plans, internal capital models, and actual performance, among other factors, as well as any other relevant corporate member obligations or receivables. Capital is in the form of Funds at Lloyd's ("FAL") which is generally available to settle the obligations of the corporate members.

Syndicate 4000 is solely supported by HCML. The Company's operations consist of a managing agent, Hamilton Managing Agency Limited, which manages the affairs of Syndicate 4000 on behalf of HCML.

The total available capital in support of the capital requirements for Syndicate 4000 is comprised of the following FAL:

($ in thousands)December 31,2025
Unsecured LOC capacity$260,000
Fixed income securities263,135
Cash1,422
Total$524,557

Indemnifications

In the ordinary course of its business, the Company may enter into contracts or agreements that contain indemnifications. Future events could occur that lead to the execution of these provisions against the Company. Management currently believes that the likelihood of such an event is remote.

Litigation and Regulatory Matters

The Company is subject to legal and regulatory investigations in the ordinary course of business. As at December 31, 2025, the Company was not a party to any material legal proceeding or investigation which is expected to have a material adverse effect on our results of operations, financial condition or liquidity.

  1. Related Party Transactions

Ada Capital Management Limited

ACML is the Company's insurance agent authorized to underwrite on behalf of Ada Re, as more fully described in Note 1, Organization. The following tables summarize the impact of transactions with Ada Re:

Years Ended December 31,
($ in thousands)202520242023
Reinsurance premiums ceded$(11,973)$(21,584)$(19,524)
Net premiums earned(11,972)(21,585)(21,744)
Other income (loss)14,5747,4348,549
Losses and loss adjustment expenses6,4537,6768,702
Acquisition costs2,8605,1265,125
Net gain (loss) on related party reinsurance$11,915$(1,349)$632
December 31,
($ in thousands)20252024
Paid losses recoverable$1,254$2,278
Unpaid losses and loss adjustment expenses recoverable11,76213,262
Other assets12,438970
Reinsurance balances payable$388$1,670
  1. Statutory Requirements

The Company is subject to the laws and statutory requirements of each jurisdiction in which the Company and its subsidiaries operate. These laws establish the Company's applicable minimum required statutory capital and surplus requirements and govern its ability to pay dividends. The minimum required statutory capital and surplus is the amount of statutory capital and surplus necessary to satisfy regulatory requirements based on the Company’s current operations. The difference between statutory financial statements and statements prepared in accordance with GAAP varies by jurisdiction; however, the primary difference is that statutory financial statements generally do not reflect goodwill or intangible assets.

Group

The Bermuda Monetary Authority ("BMA") is the Company's group supervisor and its group capital and solvency requirements determine the minimum capital thresholds that Hamilton Group must meet. Hamilton Group is dependent on dividends from its subsidiaries to pay its operating and financing expenses.

The actual and minimum required statutory capital and surplus for the Company’s principal operating subsidiaries by regulatory jurisdiction were as follows:

Bermuda (1) · United Kingdom (2) · Ireland (3) · United States(4)
As at December 31,
($ in thousands)20252024202520242025202420252024
Required statutory capital and surplus$904,258$739,605$136,974$125,232$90,087$77,269$44,062$33,780
Actual statutory capital and surplus$2,466,485$2,168,031$773,216$624,596$148,368$139,446$113,151$58,017

(1) Minimum statutory capital and surplus at December 31, 2025 for the Bermuda operating subsidiary is required to be maintained at the greater of a minimum solvency margin ("MSM"), as disclosed in the table above, and the Enhanced Capital Requirement ("ECR"), where applicable.

(2) Minimum statutory capital and surplus at December 31, 2025 for the U.K. operating entities is determined by reference to the entities' Solvency Capital Requirement and the Solvency II capital regime. U.K. operations are subject to Lloyd’s requirements where underwriting members hold acceptable FAL and/or Syndicates hold acceptable Funds In Syndicate ("FIS") for their own account, in support of the total actual statutory capital and surplus amount. Actual statutory capital and surplus is comprised of an Economic Capital Assessment ("ECA"), derived from an approved Solvency II basis internal model, less any accumulated trading surpluses or plus any accumulated trading deficits, as calculated on a Solvency II basis.

(3) The Company's Irish operations are subject to the Solvency II regime, which requires insurance companies to hold assets that cover at least the best estimate of insurance liabilities, a risk margin, plus a risk-based Solvency Capital Requirement designed to protect against extreme stress events.

(4) Minimum statutory capital and surplus at December 31, 2025 for U.S. operating subsidiaries is determined with reference to the Company Action Level Risk-Based Capital requirements.

The statutory net income (loss) for the Company’s principal operating subsidiaries by regulatory jurisdiction was as follows:

Years Ended December 31,
($ in thousands)202520242023
Bermuda$518,454$432,769$270,309
United Kingdom113,39561,87959,778
Ireland8,6628,069(1,911)
United States$401$(12,512)$(13,250)

Bermuda Operations

Hamilton Re is subject to the requirements of the Insurance Act 1978, amendments thereto and Related Regulations of Bermuda (the "Insurance Act"). As a Class 4 (re)insurer, Hamilton Re must maintain capital at the greater of their MSM and their ECR, which are established by reference to the Bermuda Solvency Capital Requirement ("BSCR") model. The Insurance Act also requires Hamilton Re to maintain certain measures of solvency and liquidity.

Independent of the Insurance Act, the BMA has also established a target capital level ("TCL") for Class 4 (re)insurers, equal to 120% of their ECR. The TCL serves as an early warning tool for the BMA and failure to maintain statutory capital at least equal to the TCL will likely result in increased regulatory oversight. Hamilton Re's actual capital and surplus levels exceed the TCL at December 31, 2025.

Hamilton Re's BSCR for the year ended December 31, 2025 must be filed with the BMA by April 30, 2026. As a result, the required statutory capital and surplus disclosed as of December 31, 2025 is based on the MSM. At December 31, 2025, the actual statutory capital and surplus of Hamilton Re was $2.5 billion and the MSM was $904.3 million.

Hamilton Re received approval from the BMA to treat its investment in TS Hamilton Fund as a "Relevant Asset" for the purpose of computing its "Liquidity Ratio" (under which relevant assets must be maintained at not less than 75% of relevant liabilities) in respect of 2025. Hamilton Re is in compliance with the Liquidity Ratio at December 31, 2025.

Under the Insurance Act, Hamilton Re is restricted as to the payment of dividends and/or distributions for amounts greater than 25% of the prior year’s statutory capital and surplus. In addition, before reducing its total statutory capital by 15% or more (as set out in its previous year's statutory financial statements), as a Class 4 Bermuda insurance subsidiary, Hamilton Re must apply to the BMA for permission to do so. For the year ended December 31, 2025, Hamilton Re had capacity to pay dividends of$542.0 million without prior approval under Bermuda law, of which$220.5 million of dividends were paid during the year. It is estimated that Hamilton Re will have capacity to pay dividends of$616.6 million in 2026.

United Kingdom Operations

A U.K. company’s ability to propose and pay dividends is dependent upon U.K. law and may require the approval of a local regulatory body where a minimum capital requirement applies.

As discussed in Note 15, Commitments and Contingencies, Lloyd’s bases the capital funding requirements of the Company's corporate members on their latest approved Economic Capital Assessments. As of December 31, 2025, actual levels of solvency, liquidity, and capital were in compliance with the Lloyd's requirements.

Following distributions received from Hamilton Syndicate 4000, profits arising in HCML are available for distribution subject to U.K. law. Profits arising in HMA, which is subject to Lloyds' oversight and regulation by both the Prudential Regulation Authority ("PRA") and the Financial Conduct Authority ("FCA"), are available for distribution subject to U.K. law and the preservation of a minimum capital requirement calculated with reference to Lloyd's capital tests.

The PRA regulatory requirements impose no explicit restrictions on the U.K. subsidiaries' ability to pay a dividend, but the Company must notify the PRA 28 days prior to any proposed dividend payment. Dividends may only be distributed from profits available for distribution. It is estimated that Hamilton's U.K. subsidiaries will have capacity to pay dividends of $3.5 million in 2026.

Ireland Operations

HIDAC is regulated by the Central Bank of Ireland ("CBI") pursuant to the Insurance Acts 1909 to 2018 (as amended), the Central Bank Acts 1942 to 2018 and all statutory instruments relating to insurance made or adopted under the European Communities Acts 1972 to 2012, including the European Union (Insurance and Reinsurance) Regulations, 2015 (as amended) and the Solvency II regime. HIDAC is required to maintain the Minimum Capital Requirement ("MCR") and the Solvency Capital Requirement ("SCR") at all times. Capital requirements are calculated by reference to Solvency II definitions. If an entity falls below the MCR or SCR, the CBI is authorized to take action to restore the financial position of the subsidiary. HIDAC was at all times in compliance with these requirements for the year ended December 31, 2025.

The amount of dividends that HIDAC is permitted to distribute is restricted to accumulated realized profits that have not been capitalized or distributed, less accumulated realized losses that have not been written off. The solvency and capital requirements must still be met subsequent to any distribution. As at December 31, 2025, HIDAC did not have retained profits available for distribution.

United States Operations

The Company’s U.S. insurance subsidiary is registered in Delaware and subject to restrictions on statutory net income and statutory surplus as determined in accordance with the relevant statutory accounting requirements established by the National Association of Insurance Commissioners, subject to state modifications thereof. They are also required to file annual statements with insurance regulatory authorities prepared in accordance with statutory accounting principles prescribed or permitted by such authorities. The U.S. insurance subsidiary is also generally required to maintain minimum levels of solvency and liquidity as determined by law and regulation, comply with regulatory capital requirements and licensing rules.

Delaware law provides that an insurance company which is a member of an insurance holding company system and is domiciled in the state shall not pay dividends without giving prior notice to the Insurance Commissioner of Delaware and may not pay dividends without the approval of the Insurance Commissioner if the value of the proposed dividend, together with all other dividends and distributions made in the preceding twelve months, exceeds the greater of (1) 10% of statutory surplus or (2) net income, not including realized capital gains, each as reported in the prior year’s statutory annual statement. In addition, no dividend may be paid in excess of unassigned earned surplus. As at December 31, 2025, the Company's U.S. insurance subsidiary did not have retained profits available for distribution.

  1. Subsequent Events

Special Dividend

On February 18, 2026, the Company’s Board of Directors declared a special dividend of $2.00 per common share outstanding, which will result in an aggregate payment of approximately $206.0 million. The dividend is payable on March 30, 2026, to common shareholders of record on March 6, 2026.

Share Repurchases

From January 1 to February 24, 2026, the Company repurchased 0.1 million Class B common shares at an aggregate cost of $1.9 million. As of February 24, 2026, $176.6 million remained available for repurchase under the Authorization.

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.