SELECTIVE INSURANCE GROUP INC

NOTE 1. Basis of Presentation

The words "Company,” “we,” “us,” or “our” refer to Selective Insurance Group, Inc. (the "Parent") and its subsidiaries, except as expressly indicated or the context requires otherwise. We have prepared our interim unaudited consolidated financial statements (“Financial Statements”) in conformity with (i) United States ("U.S.") generally accepted accounting principles (“GAAP”), and (ii) the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. These require management to make estimates and assumptions that affect the reported financial statement balances and the disclosure of contingent assets and liabilities. Actual results could differ from those estimates. All significant intercompany accounts and transactions are eliminated in consolidation.

Our Financial Statements reflect all adjustments that, in our opinion, are normal, recurring, and necessary for a fair presentation of our results of operations and financial condition. Our Financial Statements cover the first quarters ended March 31, 2024 (“First Quarter 2024”) and March 31, 2023 (“First Quarter 2023”). Our Financial Statements do not include all information and disclosures required by GAAP and the SEC for audited annual financial statements. Because interim period results of operations are not necessarily indicative of full-year results, our Financial Statements should be read in conjunction with the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2023 (“2023 Annual Report”) filed with the SEC.

NOTE 2. Adoption of Accounting Pronouncements

In June 2022, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions (“ASU 2022-03”). ASU 2022-03 clarifies that a contractual sales restriction on an equity security is not considered when determining the security's fair value. This ASU was issued to eliminate diversity in practice by clarifying that contractual arrangements restricting an entity's ability to sell the security for a certain period of time is a characteristic of the reporting entity and should not be contemplated when determining the security's fair value. ASU 2022-03 requires new disclosures that provide investors with information about the restriction, including the nature and remaining duration of the restriction. The ASU is effective for annual periods beginning after December 15, 2023, including interim periods within those annual periods. We adopted this guidance on January 1, 2024 and it did not have a material impact to our financial condition, results of operations, or disclosures.

In March 2023, the FASB issued ASU 2023-02, Investments — Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method ("ASU 2023-02"). This ASU allows companies to elect to account for qualifying tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method if certain conditions are met. Companies were previously permitted to apply the proportional amortization method only to qualifying tax equity investments in low income housing tax credit structures. ASU 2023-02 extends the application of the proportional amortization method to qualifying tax equity investments that generate tax credits through other programs. It also requires new disclosures that provide a better understanding of the nature of the tax equity investments and the effect the tax equity investments and related income tax credits and other income tax benefits have on a company's financial position and results of operations. The ASU is effective for annual periods beginning after December 15, 2023, including interim periods within those fiscal years. We adopted ASU 2023-02 on January 1, 2024 and it did not have a material impact to our financial condition, results of operations, or disclosures.

Pronouncements to be effective in the future

In November 2023, the FASB issued ASU 2023-07, Improvements to Reportable Segment Disclosures ("ASU 2023-07"). ASU 2023-07 amends disclosure requirements for segment reporting by modifying and adding disclosure requirements. The additional disclosure requirements include the following on both an interim and annual basis: (i) significant segment expenses that are regularly provided to the chief operating decision maker ("CODM"); (ii) amounts for "other segment items" by reportable segment and a description of its composition; and (iii) the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. In addition, ASU 2023-07 requires all annual disclosures about a reportable segment’s profit or loss and assets currently required by Topic 280, Segment Reporting, to now be disclosed in interim periods. ASU 2023-07 is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. As it only requires additional disclosure, ASU 2023-07 will not have an impact on our financial condition or results of operations.

In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures (“ASU 2023-09”). ASU 2023-09 amends disclosure requirements to provide greater transparency on income taxes. The following additional disclosures are required annually: (i) specific required categories in the rate reconciliation, (ii) additional information for reconciling items that meet a quantitative threshold, (iii) the amount of income taxes paid disaggregated by jurisdiction, and (iv) income tax expense (or benefit) from continuing operations disaggregated by federal, state, and foreign. ASU 2023-09 is effective for annual periods beginning after December 15, 2024. Amendments can be applied on a prospective basis; however, retrospective application is permitted. Early adoption is permitted. As it only requires additional disclosure, ASU 2023-09 will not have an impact on our financial condition or results of operations.

NOTE 3. Statements of Cash Flows

Supplemental cash flow information was as follows:

1 Examples of corporate actions include like-kind exchanges, non-cash acquisitions, and stock splits.

The following table provides a reconciliation of cash and restricted cash reported within the Consolidated Balance Sheets that equate to the amount reported in the Consolidated Statements of Cash Flows:

Amounts in restricted cash represent cash received from the National Flood Insurance Program ("NFIP") that can only be used to pay flood claims under the Write Your Own program.

NOTE 4. Investments

(a)Information regarding our AFS securities as of March 31, 2024 and December 31, 2023, were as follows:

The following tables provide a roll forward of the allowance for credit losses on our AFS fixed income securities for the indicated periods:

During First Quarter 2024 and First Quarter 2023, we had no write-offs or recoveries of our AFS fixed income securities.

For information on our methodology and significant inputs used to measure expected credit losses, our accounting policy for recognizing write-offs of uncollectible amounts, and our treatment of accrued interest, refer to Note 2. "Summary of Significant Accounting Policies" in Item 8. "Financial Statements and Supplementary Data." of our 2023 Annual Report. Accrued interest on AFS securities was $66.3 million as of March 31, 2024, and $64.6 million as of December 31, 2023. We did not record any write-offs of accrued interest in First Quarter 2024 and First Quarter 2023.

(b)Quantitative information about unrealized losses on our AFS portfolio follows:

We currently do not intend to sell any of the securities summarized in the tables above, nor do we believe we will be required to sell any of them. Considering these factors and our review of these securities under our credit loss policy as described in Note 2. "Summary of Significant Accounting Policies" in Item 8. "Financial Statements and Supplementary Data." of our 2023 Annual Report, we have concluded that no additional allowance for credit loss is required on these balances beyond the allowance for credit loss recorded as of March 31, 2024. This conclusion reflects our current judgment about the financial position and future prospects of the entities that issued the investment security and underlying collateral.

(c)AFS and held-to-maturity ("HTM") fixed income securities at March 31, 2024, by contractual maturity are shown below. The maturities of RMBS, CMBS, CLO and other ABS securities were calculated using each security's estimated average life. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.

(d)The following table summarizes our alternative investment portfolio by strategy:

We are contractually committed to make additional investments up to the remaining commitments stated above. We did not provide any non-contractual financial support during 2024 or 2023.

The following table shows gross summarized financial information for our alternative investments portfolio, including the portion we do not own. As the majority of these investments report results to us on a one quarter lag, the summarized financial statement information is for the three-month period ended December 31:

(e) We have pledged certain AFS fixed income securities as collateral related to our borrowing relationships with the Federal Home Loan Bank of Indianapolis ("FHLBI") and the Federal Home Loan Bank of New York ("FHLBNY"). In addition, we had certain securities on deposit with various state and regulatory agencies at March 31, 2024 to comply with insurance laws. We retain all rights regarding all securities pledged as collateral.

The following table summarizes the market value of these securities at March 31, 2024:

(f) We did not have exposure to any credit concentration risk of a single issuer greater than 10% of our stockholders' equity, other than to certain U.S. government agencies, as of March 31, 2024, or December 31, 2023.

(g)The components of pre-tax net investment income earned were as follows:

(h)The following table summarizes net realized and unrealized investment gains and losses for the periods indicated:

Net unrealized gains and losses recognized in income on equity securities, as reflected in the table above, included the following:

NOTE 5. Fair Value Measurements

The financial assets in our investment portfolio are primarily measured at fair value as disclosed on the Consolidated Balance Sheets. The following table presents the carrying amounts and fair values of our financial liabilities as of March 31, 2024, and December 31, 2023:

For discussion regarding the fair value techniques of our financial instruments, refer to Note 2. "Summary of Significant Accounting Policies" in Item 8. "Financial Statements and Supplementary Data." of our 2023 Annual Report.

The following tables provide quantitative disclosures of our financial assets that were measured and recorded at fair value at March 31, 2024, and December 31, 2023:

1 Investments amounting to $155.1 million at March 31, 2024, and $163.9 million at December 31, 2023, were measured at fair value using the net asset value per share (or its practical expedient) and have not been classified in the fair value hierarchy. These investments are not redeemable and the timing of liquidations of the underlying assets is unknown at each reporting period. The fair value amounts in this table are intended to permit reconciliation of the fair value hierarchy to total assets measured at fair value.

The following tables provide a summary of Level 3 changes in First Quarter 2024 and First Quarter 2023:

The following tables present quantitative information about the significant unobservable inputs used in the fair value measurements of Level 3 assets at March 31, 2024, and December 31, 2023:

1 Other is comprised of broker quotes or other third-party pricing for which there is a lack of transparency into the inputs used to develop the valuations. The quantitative details of these unobservable inputs are neither provided to us, nor reasonably available to us, and therefore are not included in the tables above.

For the securities in the tables above valued using a discounted cash flow analysis, we apply an illiquidity spread in our determination of fair value. An increase in this assumption would result in a lower fair value measurement.

The following tables provide quantitative information about our financial assets and liabilities that were not measured at fair value, but were disclosed as such at March 31, 2024, and December 31, 2023:

NOTE 6. Allowance for Credit Losses on Premiums Receivable

The following table provides a roll forward of the allowance for credit losses on our premiums receivable balance for the indicated periods:

For a discussion of the methodology used to evaluate our estimate of expected credit losses on premiums receivable, refer to Note 2. "Summary of Significant Accounting Policies" in Item 8. "Financial Statements and Supplementary Data." of our 2023 Annual Report.

NOTE 7. Reinsurance

We evaluate and monitor the financial condition of our reinsurers under voluntary reinsurance arrangements to minimize our exposure to significant losses from reinsurer insolvencies. The following tables provide (i) a disaggregation of our reinsurance recoverable balance by financial strength rating, and (ii) an aging analysis of our past due reinsurance recoverable balances as of March 31, 2024, and December 31, 2023:

The following table provides a roll forward of the allowance for credit losses on our reinsurance recoverable balance for the periods indicated:

For a discussion of the methodology used to evaluate our estimate of expected credit losses on our reinsurance recoverable balance, refer to Note 2. "Summary of Significant Accounting Policies" in Item 8. "Financial Statements and Supplementary Data." of our 2023 Annual Report.

The following table lists direct, assumed, and ceded reinsurance amounts for premiums written, premiums earned, and loss and loss expense incurred for the indicated periods. For more information about reinsurance, refer to Note 9. “Reinsurance” in Item 8. “Financial Statements and Supplementary Data.” of our 2023 Annual Report.

NOTE 8. Reserve for Loss and Loss Expense

The table below provides a roll forward of the reserve for loss and loss expense for beginning and ending reserve balances:

Prior year reserve development in First Quarter 2024 was unfavorable by $15.8 million, consisting of $35.0 million of unfavorable casualty reserve development, partially offset by $19.2 million of favorable property reserve development. The unfavorable casualty reserve development was driven by our Standard Commercial Lines segment, which included (i) $50.0 million in our general liability line of business, primarily driven by increased severities in accident years 2020 through 2023, partially offset by (ii) $15.0 million of favorable casualty reserve development in our workers compensation line of business.

Additionally, in our Standard Personal Lines segment, we had unfavorable casualty reserve development of $5.0 million in our personal automobile line of business, offset by favorable development of $5.0 million in our homeowners line of business.

Prior year reserve development in First Quarter 2023 was favorable by $13.0 million, consisting of favorable casualty reserve development of $10.0 million in our workers compensation line of business and $5.0 million in our Excess and Surplus ("E&S") casualty lines of business, partially offset by $2.0 million of unfavorable casualty reserve development in our personal automobile line of business.

NOTE 9. Segment Information

We evaluate the results of ourfour reportable segments as follows:

•Our Standard Commercial Lines, Standard Personal Lines, and E&S Lines are evaluated on (i) before and after-tax underwriting results (net premiums earned, incurred loss and loss expense, policyholder dividends, policy acquisition costs, and other underwriting expenses), (ii) their return on equity ("ROE") contribution, and (iii) their combined ratios.

•Our Investments segment is primarily evaluated on after-tax net investment income and its ROE contribution. After-tax net realized and unrealized gains and losses are also included in our Investments segment results.

In computing each segment's results, we do not make adjustments for interest expense or corporate expenses. No segment has a separate investment portfolio or allocated assets.

The following summaries present revenues (net investment income and net realized and unrealized gains and losses on investments in the case of the Investments segment) and pre-tax income for the individual segments:

NOTE 10. Retirement Plans

The primary pension plan for our employees is the Retirement Income Plan for Selective Insurance Company of America (the “Pension Plan”). The plan is closed to new entrants, and benefits ceased accruing under the Pension Plan after March 31, 2016. For more information about Selective Insurance Company of America's ("SICA") retirement plans, see Note 15. “Retirement Plans” in Item 8. “Financial Statements and Supplementary Data.” of our 2023 Annual Report.

The following tables provide information about the Pension Plan:

1 The components of net periodic pension cost (benefit) are included within "Loss and loss expense incurred" and "Other insurance expenses" on the Consolidated Statements of Income.

NOTE 11. Comprehensive Income

The components of comprehensive income, both gross and net of tax, for First Quarter 2024 and First Quarter 2023 were as follows:

The balances of, and changes in, each component of accumulated other comprehensive income (loss) ("AOCI") (net of taxes) as of March 31, 2024, were as follows:

1 Represents change in unrealized gains (losses) on securities with credit loss recognized in earnings.

The reclassifications out of AOCI were as follows:

NOTE 12. Earnings per Common Share

The following table presents the calculations of earnings per common share ("EPS") on a basic and diluted basis:

NOTE 13. Litigation

As of March 31, 2024, we do not believe we are involved in any legal action that could have a material adverse effect on our consolidated financial condition, results of operations, or cash flows.

In the ordinary course of conducting business, we are parties in various legal actions. Most are claims litigation involving ourten insurance subsidiaries (collectively referred to as "Insurance Subsidiaries") as (i) liability insurers defending or providing indemnity for third-party claims brought against our customers, (ii) insurers defending first-party coverage claims brought against them, or (iii) liability insurers seeking declaratory judgment on our insurance coverage obligations. We account for such activity by establishing unpaid loss and loss expense reserves. Considering potential losses and defense costs reserves, we expect that any potential ultimate liability for ordinary course claims litigation will not be material to our consolidated financial condition, results of operations, or cash flows.

All our commercial property and businessowners' policies require direct physical loss of or damage to property by a covered cause of loss. All our standard lines commercial property and businessowners' policies also include or attach an exclusion that states all loss or property damage caused by or resulting from any virus, bacterium, or other microorganism that induces or is capable of inducing physical distress, illness, or disease is not a covered cause of loss ("Virus Exclusion"). Whether COVID-19-related contamination, the existence of the COVID-19 pandemic, and the resulting COVID-19-related government shutdown orders cause physical loss of or damage to property is the subject of much public debate and first-party coverage litigation against some insurers, including us. The Virus Exclusion is also the subject of first-party coverage litigation against some insurers, including us. To date, insurers (including us) have prevailed in the majority of these suits, with most decisions holding that COVID-19 does not cause physical loss of or damage to property and the Virus Exclusion is valid. Nonetheless, these two matters continue to be litigated in trial courts, are subject to review by state and federal appellate courts, and their ultimate outcome cannot be assured.

From time to time, our Insurance Subsidiaries also are named as defendants in other legal actions, some asserting claims for substantial amounts. Plaintiffs may style these actions as class actions and seek judicial certification of a state or national class for allegations involving our business practices, such as improper medical provider reimbursement under workers compensation and personal and commercial automobile insurance policies or improper reimbursement for automobile parts. Similarly, our Insurance Subsidiaries can be named defendants in individual actions seeking extra-contractual damages, punitive damages, or penalties, often alleging bad faith in handling insurance claims. We believe that we have valid defenses to these allegations and account for such activity by establishing unpaid loss and loss expense reserves. Considering estimated losses and defense costs reserves, we expect that any potential ultimate liability for these other legal actions will not be material to our consolidated financial condition. As litigation outcomes are inherently unpredictable and the amounts sought in certain actions are large or indeterminate, adverse outcomes could potentially have a material adverse effect on our consolidated results of operations or cash flows in particular quarterly or annual periods.