SEI INVESTMENTS CO

Note 1 –Summary of Significant Accounting Policies

Nature of Operations

SEI Investments Company (the Company), a Pennsylvania corporation, is a leading global provider of financial technology, operations, and asset management services within the financial services industry.

Investment processing platforms provide technologies and business process outsourcing services for wealth managers. These solutions include investment advisory, client relationship, and other technology-enabled capabilities for the front office; administrative and investment services for the middle office; and accounting and processing services for the back office. Revenues from investment processing services are recognized in Information processing and software servicing fees on the accompanying Consolidated Statements of Operations.

Investment operations platforms provide business process outsourcing services for investment managers and asset owners. These platforms support a broad range of traditional and alternative investments and provide technology-enabled information analytics and investor capabilities for the front office; administrative and investment services for the middle office; and fund administration and accounting services for the back office. Revenues from investment operations services are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Investment management platforms provide comprehensive solutions for managing personal and institutional wealth. These platforms include goals-based investment strategies; SEI-sponsored and third-party investment products, including mutual funds, ETFs, collective investment products, alternative investment portfolios and separately managed accounts (SMA); and other market-specific advice, technology and operational components. These services are offered to wealth managers as part of a complete goals-based investment program for their end-investors. For institutional investors, the Company provides an Outsourced Chief Investment Officer (OCIO) platform and Unbundled OCIO platform that include investment management programs, as well as advisory and administrative services. Revenues from investment management services are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Basis of Presentation

The accompanying Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America. Certain financial information and accompanying note disclosure normally included in the Company’s Annual Report on Form 10-K have been condensed or omitted. The interim financial information is unaudited but reflects all adjustments (consisting of only normal recurring adjustments) which are, in the opinion of management, necessary for a fair statement of financial position of the Company as of September 30, 2025, the results of operations for the three and nine months ended September 30, 2025 and 2024, and cash flows for the nine months ended September 30, 2025 and 2024. These interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the Notes to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

There have been no significant changes in significant accounting policies during the nine months ended September 30, 2025 as compared to the significant accounting policies described in the Company's Annual Report on Form 10-K for the year ended December 31, 2024.

Variable Interest Entities

The Company or its affiliates have created numerous investment products for its clients in various types of legal entity structures. For entities determined to be a variable interest entity (VIE) in which the Company has a variable interest, an evaluation is required to determine whether the Company is the primary beneficiary. The Company evaluates its economic interests in the entity specifically determining if the Company has both the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. When making the determination on whether the benefits received from an entity are significant, the Company considers the total economics of the entity, and analyzes whether the Company’s share of the economics is significant. The Company utilizes qualitative factors, and, where applicable, quantitative factors, while performing the analysis. At each balance sheet date, the Company determines whether any reconsideration events, such as capital contributions and redemptions, either by the Company or third parties, have occurred that require it to revisit the VIE analysis and will consolidate or deconsolidate accordingly.

Consolidated Variable Interest Entities

VIEs which the Company controls as the primary beneficiary have been included in the Company’s Consolidated Financial Statements. The results of the consolidated VIEs are reported on a one-month lag due to the timing of the receipt of related financial statements. To the extent the Company is aware of material events that affect the consolidated VIEs during the intervening period, the impact of the events would be disclosed in the Notes to Consolidated Financial Statements.

The Company's consolidated net income on the accompanying Consolidated Statement of Operations includes the income (loss) attributable to non-controlling interests. The portion of the consolidated VIEs owned by other investors is included in Redeemable Non-controlling Interests on the accompanying Consolidated Balance Sheet. Activity related to other investors of the consolidated VIEs is eliminated through Net income attributable to non-controlling interests on the accompanying Consolidated Statement of Operations.

Investments held by consolidated VIEs are recorded at fair value. Unrealized gains and losses from the investments are recognized in Net gain from consolidated variable interest entities on the accompanying Consolidated Statement of Operations.

The Company deconsolidates all the assets and liabilities of the non-controlling interests from the Consolidated Balance Sheets once it no longer qualifies as the primary beneficiary of a consolidated VIE. See Note 15 for related disclosures regarding the Company's consolidated VIEs.

Redeemable Non-controlling Interests

The Company includes redeemable non-controlling interests related to consolidated VIEs as temporary equity on the Consolidated Balance Sheets. Non-controlling interests in consolidated VIEs are subject to redemption by the investors. When redeemable amounts become legally payable to the investors, they are classified as a liability and included in Liabilities of consolidated variable interest entities on the Consolidated Balance Sheets.

Changes in the Company's redeemable non-controlling interests in consolidated VIEs are as follows:

Non-consolidated Variable Interest Entities

The Company serves as the Manager, Administrator and Distributor for certain investment products and may also serve as the Trustee for some of the investment products. The Company receives asset management, distribution, administration and custodial fees for these services. Clients are the equity investors and participate in proportion to their ownership percentage in the net income or loss and net capital gains or losses of the products, and, on liquidation, will participate in proportion to their ownership percentage in the remaining net assets of the products after satisfaction of outstanding liabilities. The Company has concluded that it is not the primary beneficiary of the entities in which it serves as the Manager, Administrator, Distributor or Trustee and, therefore, is not required to consolidate any of the pooled investment vehicles for which it receives asset management, distribution, administration and custodial fees under the VIE model.

The Company is a party to expense limitation agreements with certain SEI-sponsored money market funds subject to Rule 2a-7 of the Investment Company Act of 1940 which establish a maximum level of ordinary operating expenses incurred by the fund in any fiscal year including, but not limited to, fees of the administrator or its affiliates. Under the terms of these agreements, the Company waived $5,397 and $1,202 in fees during the three months ended September 30, 2025 and 2024, respectively. During the nine months ended September 30, 2025 and 2024, the Company waived $14,792 and $6,764, respectively, in fees.

Revenue Recognition

Revenue is recognized when the transfer of control of promised goods or services under the terms of a contract with customers are satisfied in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those promised goods or services. Certain portions of the Company’s revenues involve a third party in providing goods or services to its customers. In such circumstances, the Company must determine whether the nature of its promise to the customer is to provide the underlying goods or services (the Company is the principal in the transaction and reports the transaction gross) or to arrange for a third party to provide the underlying goods or services (the entity is the agent in the transaction and reports the transaction net). See Note 14 for related disclosures regarding revenue recognition.

Cash and Cash Equivalents

The Company considers investment instruments purchased with an original maturity of three months or less to be cash equivalents. Cash and cash equivalents includes $191,938 and $341,311 at September 30, 2025 and December 31, 2024, respectively, invested in SEI-sponsored open-ended money market investment products. See Note 5 for information related to the Company's total investments in SEI-sponsored and non-SEI-sponsored money market investment products and commercial paper classified as cash equivalents. Cash and cash equivalents also includes restricted cash of $250 at September 30, 2025 and December 31, 2024 segregated for regulatory purposes related to trade-execution services conducted by SEI Investments (Europe) Limited and $52 at September 30, 2025 and December 31, 2024 segregated in special reserve accounts for the benefit of customers of the Company’s broker-dealer subsidiary, SEI Investments Distribution Co. (SIDCO), in accordance with certain rules established by the Securities and Exchange Commission (SEC) for broker-dealers.

Capitalized Software

The Company capitalized $22,828 and $18,414 of software development costs during the nine months ended September 30, 2025 and 2024, respectively, to further develop the SEI Wealth Platform SM(SWP) and for the development of a new platform for the Investment Managers segment. The Company capitalized $14,510 and $10,542 of software development costs for significant enhancements to SWP during the nine months ended September 30, 2025 and 2024, respectively. As of September 30, 2025, the net book value of SWP was $197,528, which includes $1,862 of capitalized software development costs in-progress associated with future releases. SWP has a weighted average remaining life of 7.7 years. Amortization expense for SWP was $21,602 and $20,517 during the nine months ended September 30, 2025 and 2024, respectively.

The Company also capitalized $8,318 and $7,872 of software development costs during the nine months ended September 30, 2025 and 2024, respectively, related to the development of a new platform for the Investment Managers segment. The Company placed the platform into service during the third quarter 2025 with an estimated useful life of 7.0 years. The net book value of the platform at September 30, 2025 was $38,031, which includes $8,319 of capitalized software development costs in-progress associated with future releases. Amortization expense for the platform was $1,100 during the nine months ended September 30, 2025.

Earnings per Share

The calculations of basic and diluted earnings per share for the three and nine months ended September 30, 2025 and 2024 are:

During the three months ended September 30, 2025 and 2024, employee stock options to purchase 5,687,000 and 10,606,000 shares of common stock with an average exercise price of $66.09 and $61.06, respectively, were outstanding but not included in the computation of diluted earnings per common share. During the nine months ended September 30, 2025 and 2024, employee stock options to purchase 5,744,000 and 10,747,000 shares of common stock with an average exercise price of $66.04 and $61.05, respectively, were outstanding but not included in the computation of diluted earnings per common share. These options for the three and nine month periods were not included in the computation of diluted earnings per common share because either the performance conditions have not been satisfied or would not have been satisfied if the reporting date was the end of the contingency period or the options' exercise price was greater than the average market price of the Company’s common stock and the effect on diluted earnings per common share would have been anti-dilutive.

New Accounting Pronouncements

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvement to Income Tax Disclosures (ASU 2023-09) to enhance the transparency and decision usefulness of income tax disclosures. ASU 2023-09 is effective for annual periods beginning after December 15, 2024 on a prospective basis. Early adoption is permitted. The Company does not expect ASU 2023-09 to have a significant impact on its annual consolidated financial statements and related disclosures.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (ASU 2024-03) and in January 2025, the FASB issued ASU 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date (ASU 2025-01), which clarified the effective date of ASU 2024-03. This standard requires new disclosures to disaggregate prescribed natural expenses underlying any income statement caption. ASU 2024-03 is effective for annual periods beginning after December 15, 2026 on a prospective basis and interim periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of adopting the guidance on its consolidated financial statements and related disclosures.

In May 2025, the FASB issued ASU 2025-03, Business Combinations (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity (ASU 2025-03). This standard eliminates the presumption that the primary beneficiary of a VIE is the accounting acquirer in a business combination. Instead, entities are required to apply the general guidance in ASC 805 to determine the accounting acquirer when the transaction is primarily effected by the exchange of equity interests. ASU 2025-03 is effective for annual and interim periods beginning after December 15, 2026 on a prospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting the guidance on its consolidated financial statements and related disclosures.

In September 2025, the FASB issued ASU 2025-06, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal Use Software (ASU 2025-06). This standard clarifies capitalization thresholds for software development costs and aligns accounting treatment more closely with the economic substance of modern software development activities. ASU 2025-06 is effective for annual and interim periods beginning after December 15, 2027 on a retrospective, prospective or modified prospective basis. Early adoption is permitted. The Company is currently evaluating the impact of adopting ASU 2025-06 on its consolidated financial statements and related disclosures.

Reclassifications

Certain prior year amounts have been reclassified to conform to current year presentation.

Note 2 –Equity Method Investments

LSV Asset Management

The Company has an investment in LSV Asset Management (LSV), a registered investment advisor that provides investment advisory services primarily to institutions, including pension plans and investment companies. LSV is currently an investment sub-advisor for a limited number of SEI-sponsored investment products. The Company's partnership interest in LSV as of September 30, 2025 was 38.5%. The Company’s interest in the net assets of LSV is included in Investments on the accompanying Consolidated Balance Sheets and its interest in the earnings of LSV is reflected in Equity in earnings of unconsolidated affiliate on the accompanying Consolidated Statements of Operations.

At September 30, 2025 and December 31, 2024, the Company’s total investment in LSV was $52,083 and $114,299, respectively. The Company's investment includes advances provided to LSV related to their working capital accounts. The Company receives partnership distributions from LSV on a quarterly basis. The Company received partnership distributions from LSV of $104,768 and $112,476 in the nine months ended September 30, 2025 and 2024, respectively. As such, the Company considers these distribution payments as returns on investment rather than returns of the Company's original investment in LSV and has therefore classified the associated cash inflows as an operating activity on the Consolidated Statements of Cash Flows.

The Company’s proportionate share in the earnings of LSV was $31,903 and $36,513 during the three months ended September 30, 2025 and 2024, respectively. During the nine months ended September 30, 2025 and 2024, the Company’s proportionate share in the earnings of LSV was $94,290 and $102,375, respectively.

These tables contain condensed financial information of LSV:

On April 1, 2025, LSV provided an interest in the partnership to select key employees which reduced the ownership percentage of each existing partner on a pro-rata basis. As a result, the Company's total partnership interest in LSV was reduced slightly to approximately 38.5% from approximately 38.6%.

Other Equity Method Investments

The Company's other equity method investment consist of an investment in a non-affiliated limited partnership fund in which the Company holds a more than minor interest. At September 30, 2025 and December 31, 2024, the Company’s total investment in the limited partnership fund was $9,080 and $9,483, respectively, and is included in Investments on the accompanying Consolidated Balance Sheets (See Note 5).

The Company recognized unrealized gains of $71 during the three months ended September 30, 2025 from the change in fair value of the investment. The Company recognized unrealized gains of $294 during the nine months ended September 30, 2025 from the change in fair value of the investment. Unrealized gains and losses from the change in fair value of the investment are recognized in Net gain from investments on the accompanying Consolidated Statements of Operations.

Note 3 –Composition of Certain Financial Statement Captions

Receivables

Receivables on the accompanying Consolidated Balance Sheets consist of:

Fees earned, not billed represents receivables from contracts with customers earned but unbilled and results from timing differences between services provided and contractual billing schedules. These billing schedules generally provide for fees to be billed on a quarterly basis. In addition, certain fees earned from investment operations services are calculated based on assets under administration that have an extended valuation process. Billings to these clients occur once the asset valuation processes are completed.

Receivables from investment products on the accompanying Consolidated Balance Sheets primarily represent fees receivable for distribution, investment advisory, and administration services to various regulated investment companies and other investment products sponsored by SEI.

Property and Equipment

Property and Equipment on the accompanying Consolidated Balance Sheets consists of:

The Company recognized $23,077 and $25,097 in depreciation expense related to property and equipment for the nine months ended September 30, 2025 and 2024, respectively.

Deferred Contract Costs

Deferred contract costs, which primarily consist of deferred sales commissions, were $49,113 and $45,855 as of September 30, 2025 and December 31, 2024, respectively. The Company deferred expenses related to contract costs of $5,333 and $5,326 during the three months ended September 30, 2025 and 2024, respectively. During the nine months ended September 30, 2025 and 2024, the Company deferred expenses related to contract costs of $13,528 and $10,237, respectively. Amortization expense related to deferred contract costs were $9,875 and $7,931 during the nine months ended September 30, 2025 and 2024, respectively. Amortization expense related to deferred contract costs is included in Compensation, benefits and other personnel on the accompanying Consolidated Statements of Operations. There wereno material impairment losses in relation to deferred contract costs during the nine months ended September 30, 2025.

Accrued Liabilities

Accrued liabilities on the accompanying Consolidated Balance Sheets consist of:

Note 4 –Fair Value Measurements

The fair value of the Company’s financial assets and liabilities is determined in accordance with the fair value hierarchy. The pricing policies and procedures applied to the Company's Level 1 and Level 2 financial assets during the nine months ended September 30, 2025 were consistent with those as described in the Company's Annual Report on Form 10-K at December 31, 2024. Level 1 financial assets and liabilities of the Company and consolidated VIEs consist mainly of equity securities and investments in open-end and closed-end investment products that are quoted daily. Level 2 financial assets consist of Government National Mortgage Association (GNMA) mortgage-backed securities held by the Company's wholly-owned limited purpose federal thrift subsidiary, SEI Private Trust Company (SPTC), and Federal Home Loan Bank (FHLB) and other U.S. government agency short-term notes held by SIDCO. The financial assets held by SIDCO were purchased as part of a cash management program requiring only short term, top-tier investment grade government and corporate securities. The financial assets held by SPTC are debt securities issued by GNMA and are backed by the full faith and credit of the U.S. government. These securities were purchased for the sole purpose of satisfying applicable regulatory requirements and have maturity dates which range from 2027 to 2041. The Company's Level 3 financial liabilities at September 30, 2025 and December 31, 2024 consist entirely of the estimated fair value of the contingent considerations resulting from business acquisitions (See Note 12). The fair value of the contingent considerations were determined using a Monte-Carlo simulation model. There were no transfers of financial assets between levels within the fair value hierarchy during the nine months ended September 30, 2025.

The fair value of the Company's investments in funds sponsored by LSV is measured using the net asset value per share (NAV) as a practical expedient. The NAVs of the funds are calculated by the funds' independent custodian and are derived from the fair values of the underlying investments as of the reporting date. The investment funds sponsored by LSV allow for investor redemptions at the end of each calendar month. The investments measured using the NAV as a practical expedient have not been classified in the fair value hierarchy but are presented in the tables below to permit reconciliation to the amounts presented on the accompanying Consolidated Balance Sheets.

The fair value of certain financial assets and liabilities of the Company and consolidated VIEs was determined using the following inputs:

Note 5 –Investments and Other Marketable Securities

Investments on the accompanying Consolidated Balance Sheets consist of:

Available For Sale and Equity Securities

Available for sale and equity securities consist of:

Net unrealized losses at September 30, 2025 of available-for-sale debt securities were $3,977 (net of income tax benefit of $1,188). Net unrealized losses at December 31, 2024 of available-for-sale debt securities were $8,536 (net of income tax benefit of $2,549). These unrealized losses are associated with the Company’s investments in mortgage-backed securities issued by GNMA and were caused by interest rate increases (See Note 4). The contractual cash flows of these securities are guaranteed by an agency of the U.S. government. Accordingly, it is expected that the securities would not be settled at a price less than the amortized cost bases of the Company's investments. The Company does not intend to sell the investments and it is not likely that the Company will be required to sell the investments before recovery of their amortized cost bases. These net unrealized losses are reported as a separate component of Accumulated other comprehensive loss on the accompanying Consolidated Balance Sheets.

The following tables provide the scheduled maturities of the Company's available-for-sale debt securities:

There were no material realized gains or losses from available-for-sale debt securities during the nine months ended September 30, 2025 and 2024, respectively.

There were gross realized gains of $566 and $1,651 from investment products and equities during the nine months ended September 30, 2025 and 2024, respectively. There were gross realized losses of $94 and $1,416 from investment products and equities during the nine months ended September 30, 2025 and 2024, respectively. Gains and losses from investment products and equities are reflected in Net gain from investments on the accompanying Consolidated Statements of Operations.

Investments in Affiliated Funds

The Company has an investment in funds sponsored by LSV. The Company records this investment at fair value. Unrealized gains and losses from the change in fair value of these funds are recognized in Net gain from investments on the accompanying Consolidated Statements of Operations.

The Company's investment in the funds had a fair value of $10,522 and $8,129 at September 30, 2025 and December 31, 2024, respectively. The Company recognized unrealized gains of $1,249 and $673 during the three months ended September 30, 2025 and 2024, respectively, from the change in fair value of the funds. The Company recognized unrealized gains of $2,393 and $1,094 during the nine months ended September 30, 2025 and 2024, respectively, from the change in fair value of the funds.

Securities Owned

The Company’s broker-dealer subsidiary, SIDCO, has investments in U.S. government agency securities with maturity dates less than one year. These investments are reflected as Securities owned on the accompanying Consolidated Balance Sheets. Due to specialized accounting practices applicable to investments by broker-dealers, the securities are reported at fair value and changes in fair value are recorded in current period earnings. The securities had a fair value of $31,242 and $29,583 at September 30, 2025 and December 31, 2024, respectively. There were no material net gains or losses related to the securities during the three and nine months ended September 30, 2025 and 2024.

Cash Equivalents

Investments in SEI-sponsored and non-SEI-sponsored money market funds and commercial paper classified as cash equivalents had a fair value of $557,337 and $541,635 at September 30, 2025 and December 31, 2024, respectively. There were no material unrealized or realized gains or losses from these investments during the nine months ended September 30, 2025 and 2024. Investments in money market funds and commercial paper are Level 1 assets.

Note 6 –Line of Credit

On August 18, 2025 (the Closing Date), the Company entered into afive-year $500,000 Credit Agreement (the Facility) with U.S. Bank National Association, and a syndicate of other lenders. The Facility is scheduled to expire in August 2030, at which time any aggregate principal amount of loans outstanding becomes payable in full. The aggregate principal amount of the Facility may be increased by an additional $250,000 under certain conditions set forth in the agreement. The Facility replaces the Company’s $325,000 five-year credit facility that was scheduled to expire in April 2026. Interest on borrowings under the Facility is payable at rates that, at the Company's option, are based on a base rate (the Base Rate) plus a premium that can range from 0.25% to 1.25% or the Term Secured Overnight Financing Rate (Term SOFR) plus a premium that can range from 1.25% to 2.25% depending on the Company’s Leverage Ratio (a ratio of consolidated indebtedness to consolidated EBITDA for thefour preceding fiscal quarters, all as defined in the relevant agreement). The Base Rate is defined as the highest of a) the Prime Rate, b) the Federal Funds Rate (each as defined in the relevant agreement) plus 0.50%, or c) Term SOFR for a one-month tenor in effect on such day plus 1.00%. The Company also pays quarterly commitment fees based on the unused portion of the Facility. The quarterly fees for the Facility can range from 0.15% of the amount of the unused portion of the Facility to 0.35%, depending on the Company’s Leverage Ratio. Certain wholly-owned subsidiaries of the Company have guaranteed the obligations of the Company under the Facility.

The Company may issue up to $25,000 in letters of credit under the terms of the Facility. The Company pays a periodic commission fee based on the applicable rate with respect to borrowings that are designated as SOFR Loans (as defined in the relevant agreement) plus an issuance fee agreed upon between between the Company and the lender.

The Facility contains covenants that, among other things, restrict the ability of the Company and its subsidiaries to engage in mergers, consolidations, asset sales, acquisitions, transactions with affiliates, or to incur indebtedness or liens, subject in certain cases to certain exceptions and thresholds, as defined in the related agreement. In the event of a default under the Facility, the Company would also be restricted from paying dividends on, or repurchasing, its capital stock without the approval of the lenders. Upon the occurrence of certain financial or economic events, significant corporate events or certain other events of default constituting an event of default under the Facility, all loans outstanding under the Facility may be declared immediately due and payable and all commitments under the Facility may be terminated.

The Company was in compliance with all covenants of the credit facilities during the nine months ended September 30, 2025. As of October 9, 2025, the Company had outstanding letters of credit of $4,630 under the Facility. The amount of the Facility that is available for general corporate purposes as of October 9, 2025 was $495,370.

Note 7 –Shareholders’ Equity

Stock-Based Compensation

The Company has non-qualified stock options and restricted stock units (RSUs) outstanding under its equity compensation plans. The Company recognized stock-based compensation expense in its Consolidated Financial Statements in the three and nine months ended September 30, 2025 and 2024, respectively, as follows:

The vesting of the Company's RSUs are time-based and are not based on the achievement of performance targets. The majority of the Company's RSUs will vest on the third anniversary of the issuance date. All outstanding stock options have performance-based vesting provisions that tie the vesting of stock options to the Company’s financial performance which are established at the time of grant, as well as a service condition which requires a minimum waiting period from the date of grant. The performance targets are measured annually on December 31. The amount of stock-based compensation expense recognized in the period is based upon management’s estimate of when the financial vesting targets may be achieved. Any change in management’s estimate could result in the remaining amount of stock-based compensation expense to be accelerated, spread out over a longer period, or reversed. This may cause volatility in the recognition of stock-based compensation expense in future periods and could materially affect the Company’s earnings.

As of September 30, 2025, there was approximately $76,543 of unrecognized compensation cost remaining related to unvested employee stock options and restricted stock units that management expects will vest and is being amortized.

The Company issues new common shares associated with the exercise of stock options. The total intrinsic value of options exercised during the nine months ended September 30, 2025 was $50,667. The total options exercisable as of September 30, 2025 had an intrinsic value of $174,633. The total intrinsic value for options exercisable is calculated as the difference between the market value of the Company’s common stock as of September 30, 2025 and the weighted average exercise price of the options. The market value of the Company’s common stock as of September 30, 2025 was $84.85 as reported by the Nasdaq Stock Market, LLC. The weighted average exercise price of the options exercisable as of September 30, 2025 was $59.15. Total options that were outstanding as of September 30, 2025 were 13,335,000. Total options that were exercisable as of September 30, 2025 were 6,795,000.

Common Stock Buyback

The Company’s Board of Directors, under multiple authorizations, has authorized the repurchase of common stock on the open market or through private transactions. The Company purchased 6,235,000 shares at a total cost of $515,156 during the nine months ended September 30, 2025, which reduced the total shares outstanding of common stock. The cost of stock purchases during the period includes the cost of excise taxes applicable to stock repurchases and certain transactions that settled in the following quarter. As of September 30, 2025, the Company had approximately $154,443 of authorization remaining for the purchase of common stock under the program.

The Company immediately retires its common stock when purchased. Upon retirement, the Company reduces Capital in excess of par value for the average capital per share outstanding and the remainder is charged against Retained earnings. If the Company reduces its Retained earnings to zero, any subsequent purchases of common stock will be charged entirely to Capital in excess of par value.

Cash Dividend

On May 28, 2025, the Board of Directors declared a cash dividend of $0.49 per share on the Company's common stock, which was paid on June 17, 2025, to shareholders of record on June 9, 2025. Cash dividends declared during the nine months ended September 30, 2025 and 2024 were $61,478 and $60,285, respectively.

Note 8 –Accumulated Other Comprehensive Loss

The components of Accumulated other comprehensive loss, net of tax, are as follows:

Note 9 –Business Segment Information

The Company's business segments are generally organized around its target markets. The Company’s reportable business segments are:

Investment Managers – Provides an outsourced investment management operating platform to alternative and traditional asset managers, fund companies, and sovereign wealth funds;

Private Banks – Provides outsourced investment processing and investment management platforms to banks and trust institutions, independent wealth advisers, and financial advisors worldwide;

Investment Advisors – Provides investment management and investment processing platforms to affluent investors through a network of independent registered investment advisors, financial planners, and other investment professionals in the United States;

Institutional Investors – Provides Outsourced Chief Investment Officer solutions, including investment management and administrative outsourcing platforms to retirement plan sponsors, healthcare systems, higher education and other not-for-profit organizations worldwide; and

Investments in New Businesses – Focuses on providing investment management solutions to ultra-high-net-worth families residing in the United States; hosted technology services to family offices and financial institutions; developing network and data protection services; entering new markets; and conducting other research and development activities.

The Company's CODM is the chief executive officer who uses the reported measures of each business segment's profit or loss to allocate resources and assess performance by comparing historical, actual and forecasted amounts. The Company's CODM does not evaluate business segments using asset information.

There areno inter-segment revenues for the three and nine months ended September 30, 2025 and 2024. The accounting policies of the reportable business segments are the same as those described in Note 1 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

The following tables highlight certain financial information about each of the business segments for the three months ended September 30, 2025 and 2024:

(1) Other segment expenses for each reportable segment includes professional services, occupancy and certain overhead expenses.

A reconciliation of the total segment profit to income from operations on the Consolidated Statements of Operations for the three months ended September 30, 2025 and 2024 is as follows:

Other income and expense items to reconcile income from operations to income before income taxes on the Consolidated Statements of Operations include net gain from investments, interest and dividend income, interest expense, gain on sale of business, other income, equity in the earnings of unconsolidated affiliates and net gain from consolidated variable interest entities. These items are not allocated to the Company's segments.

The following tables provide additional information for the three months ended September 30, 2025 and 2024 pertaining to the business segments:

(2) Capital expenditures include additions to property and equipment and capitalized software.

The following tables highlight certain financial information about each of business segment for the nine months ended September 30, 2025 and 2024:

(3) Other segment expenses for each reportable segment includes professional services, occupancy and certain overhead expenses.

A reconciliation of the total operating profit reported for the business segments to income from operations in the Consolidated Statements of Operations for the nine months ended September 30, 2025 and 2024:

Other income and expense items to reconcile income from operations to income before income taxes on the Consolidated Statements of Operations include net gain from investments, interest and dividend income, interest expense, gain on sale of business, other income, equity in the earnings of unconsolidated affiliates and net gain from consolidated variable interest entities. These items are not allocated to the Company's segments.

The following tables provide additional information for the nine months ended September 30, 2025 and 2024:

(4) Capital expenditures include additions to property and equipment and capitalized software.

Note 10 –Income Taxes

The gross liability for unrecognized tax benefits at September 30, 2025 and December 31, 2024 was $16,663 and $15,241, respectively, exclusive of interest and penalties, of which $16,938 and $14,886 would affect the effective tax rate if the Company were to recognize the tax benefit.

The Company classifies interest and penalties on unrecognized tax benefits as income tax expense. As of September 30, 2025 and December 31, 2024, the combined amount of accrued interest and penalties related to tax positions taken on tax returns was $2,512 and $1,725, respectively.

The effective income tax rate for the three and nine months ended September 30, 2025 and 2024 differs from the federal income tax statutory rate due to the following:

The decrease in the effective tax rates for the three and nine months ended September 30, 2025 was primarily due to higher tax benefits related to stock option exercises and a decline in state effective tax rates.

On July 4, 2025, President Donald J. Trump signed new tax legislation known as the One Big Beautiful Bill Act (OBBBA) into law which makes permanent many of the provisions enacted in 2017 as part of the Tax Cuts and Jobs Act that were scheduled to expire at the end of 2025. The enactment of the OBBBA primarily impacted the Company's the deferred tax liability and income tax payable related to the provisions for the elimination of the capitalization of onshore research and development costs (Section 174) and the reintroduction of 100% bonus depreciation (Section 168) and did not have a significant impact to the effective tax rate.

The Company files income tax returns in the United States on a consolidated basis and in many U.S. state and foreign jurisdictions. The Company is subject to examination of income tax returns by the Internal Revenue Service (IRS) and other domestic and foreign tax authorities. The Company is no longer subject to U.S. federal income tax examination for years before 2021 and is no longer subject to state, local or foreign income tax examinations by authorities for years before 2018.

The Company estimates it will recognize $4,294 of gross unrecognized tax benefits. This amount is expected to be paid within one year or to be removed at the expiration of the statute of limitations and resolution of income tax audits and is netted against the current payable account. These unrecognized tax benefits are related to tax positions taken on certain federal, state, and foreign tax returns. However, the timing of the resolution of income tax examinations is highly uncertain, and the amounts ultimately paid, if any, upon resolution of the issues raised by the taxing authorities may differ materially from the amounts accrued for each year. While it is reasonably possible that some issues under examination could be resolved in the next twelve months, based upon the current facts and circumstances, the Company cannot reasonably estimate the timing of such resolution or the total range of potential changes as it relates to the current unrecognized tax benefits that are recorded as part of the Company’s financial statements.

Note 11 –Commitments and Contingencies

In the ordinary course of business, the Company from time to time enters into contracts containing indemnification obligations of the Company. These obligations may require the Company to make payments to another party upon the occurrence of certain events including the failure by the Company to meet its performance obligations under the contract. These contractual indemnification provisions are often standard contractual terms of the nature customarily found in the type of contracts entered into by the Company. In many cases, there are no stated or notional amounts included in the indemnification provisions. There are no amounts reflected on the Consolidated Balance Sheets as of September 30, 2025 and December 31, 2024 related to these indemnifications.

Rubicon Wealth Management

As the Company reported in prior filings with the Commission, on May 1, 2024, SEI Private Trust Company (SPTC), a wholly-owned, operating subsidiary of SEI, terminated its client relationship with Rubicon Wealth Management LLC, an SPTC investment advisor client (Rubicon). SPTC terminated the Rubicon relationship due to suspicions of fraudulent activity by Rubicon’s founder, Scott Mason. On June 25, 2025, Mr. Mason was sentenced to 97 months in prison, followed by three years of supervised release. Mason was also ordered to pay nearly $25,000 in restitution to his victims and more than $2,300 in back taxes to the Internal Revenue Service.

The previously disclosed lawsuits filed against SPTC in its capacity as custodian for the Rubicon accounts of the plaintiffs (collectively, the Rubicon Actions) remain pending in the Court of Common Pleas of Montgomery County, Pennsylvania, with one in the preliminary objection/motion to dismiss stage and the others just beginning their discovery phase. While the Rubicon Actions are in their early stages and the ultimate outcomes of these litigations remain uncertain, SPTC intends to vigorously defend each of the Rubicon Actions. Currently, SPTC estimates that the aggregate amount of Rubicon client assets transferred at the direction of Mr. Mason from SPTC custodial accounts to Orchard Park bank accounts is approximately $15,000. In the event that SPTC is unsuccessful in its defense of the Rubicon Actions, SEI does not currently believe that the losses associated with such unsuccessful defense would exceed the approximately $15,000 of Rubicon client assets that Mr. Mason directed to be transferred to Orchard Park.

United Kingdom Financial Conduct Authority Supervisory Review of SEI Investments (Europe) Limited

On July 31, 2024, SEI Investments (Europe) Limited (SIEL), an indirectly, wholly-owned operating subsidiary of SEI, received a final requirement notice from the Financial Conduct Authority of the United Kingdom (the FCA) under section 166(3)(a) of the Financial Services and Markets Act 2000 (FSMA), requiring SIEL to engage a “Skilled Person” to undertake a two-stage review of SIEL’s governance arrangements and control environment. In the first stage, the Skilled Person is to provide SIEL and the FCA with a report setting out the Skilled Person’s view of the effectiveness of the control environment and governance arrangements with respect to key risks, as well as the Skilled Person’s recommendations where necessary to address any identified weaknesses (the Section 166 Report). In the second stage, the Skilled Person is to provide an independent view of the quality and completeness of the remediation carried out by SIEL to address any findings from the initial stage and any self-identified weaknesses, including a view on SIEL’s compliance with relevant regulations. The appointment of a Skilled Person is one of the regulatory tools used by the FCA to supervise and monitor firms it regulates. A Skilled Person is an independent third-party expert with the relevant knowledge and experience to undertake a review as described above. This is not an enforcement action nor an investigation but an action taken as part of its supervisory oversight.

In August 2024, SIEL, with the approval of FCA, appointed the firm of Grant Thornton to act as the Skilled Person.

On December 16, 2024, Grant Thornton delivered the first stage of its Skilled Person Report in which it concluded, in summary, that SIEL has an established corporate governance framework and risk management framework that it considered to be appropriate in design for the relative size and complexity of its activities. The Skilled Person Report did however make a number of recommendations for improvements in its governance arrangements with its U.S. parent, and with respect to SIEL’s three lines of defense: resourcing of control functions, strategy and culture.

To provide the necessary assurance to the FCA of SIEL’s focus on addressing the recommendations and concerns, on February 26, 2025, SIEL voluntarily applied to the FCA under section 55L(5)(a) FSMA for the imposition by the FCA of requirements on its regulatory permission (“Voluntary Requirement” / “VREQ”). From February 26, 2025, onwards, SIEL may not, without the FCA’s prior written consent:

•enter into new client agreements (contracts) where a material change in SIEL’s existing suite of propositions, systems or services is required or where significant senior management engagement would be needed; and

•launch a new proposition, product or service that is not already offered by SIEL.

The VREQ does not prevent SIEL from on-boarding new clients where this does not result in significant new service requirements or significant senior management engagement.

The VREQ currently imposed on SIEL is reflected in full on the FCA Register.

SIEL is fully committed to addressing the concerns raised by the FCA. The Company believes the actions SIEL is taking to remediate the issues identified in the Skilled Person Report will not only strengthen its business but also help maintain its focus on achieving positive customer outcomes, positioning SIEL for sustainable future growth.

SIEL management believes that the remediation actions currently underway will appropriately address the recommendations made by the Skilled Person and concerns articulated by the FCA in respect of the issues identified by the Skilled Person. SIEL’s remediation actions will be reviewed by the Skilled Person as part of the second stage of their engagement.

The VREQ will stay in effect unless and until varied or cancelled by the FCA (either on the application of SIEL or of the FCA’s own volition), until the FCA is satisfied that SIEL has demonstrated that it has addressed the concerns the FCA has communicated to it.

Other Matters

The Company and certain of its subsidiaries are party to various other examinations, investigations, actions and claims arising in the normal course of business that the Company does not believe are material. The Company believes that the ultimate resolution of these matters will not have a material adverse effect on the Company's financial position or the manner in which the Company conducts its business. Currently, the Company does not believe the amount of losses associated with these matters can be estimated. While the Company does not believe that the amount of such losses will, when liquidated or estimable, be material to its financial position, the assumptions may be incorrect and any such loss could have a material adverse effect on the Company's results of operations or the manner in which the Company conducts its business in the period(s) during which the underlying matters are resolved.

Unfunded Commitments to Limited Partnership Funds

The Company has unfunded commitments of $10,648 at September 30, 2025 to limited partnership funds.

Note 12 –Business Acquisitions and Divestitures

Stratos Wealth Holdings

On July 17, 2025, the Company entered into a definitive agreement with Stratos Wealth Holdings (Stratos), a family of companies focused on supporting the success of financial advisors across business models and affiliation structures. As part of the transaction, a newly formed entity will purchase the operating entities comprising the current Stratos business. The Company will pay a total cash consideration of approximately $527,000 for 57.5% of the equity of this entity. Certain legacy Stratos equity holders will continue to own 42.5%, which is subject tothree equal put/call options at 36 months,54 months and 72 months post-closing that, if fully exercised, will result in the Company owning 100.0% of the entity. Subject to applicable regulatory approval and other customary closing conditions, the transaction is expected to close intwo stages: the U.S.-based Stratos business, representing approximately 80.0% of the transaction value, and the Mexico-based NSC business.

The strategic investment in Stratos is not a significant acquisition of assets or otherwise material to the operations or financial results of the Company.

LifeYield

In December 2024, the Company acquired LifeYield, LLC (LifeYield). The total purchase price for LifeYield included a contingent consideration subject to the achievement of certain post-closing performance measurements determined during a time period up tofour years from the closing date. During the nine months ended September 30, 2025, the Company recorded an adjustment of $1,109 to finalize the calculation of the contingent consideration which reduced the amount of goodwill recorded through the acquisition. Also during the nine months ended September 30, 2025, the Company made an adjustment of $1,467 which reduced the fair value of the contingent consideration. This fair value adjustment to the contingent consideration is reflected in Facilities, supplies and other costs on the Consolidated Statement of Operations. As of September 30, 2025, the contingent consideration of $9,252 is included in Other long-term liabilities on the accompanying Consolidated Balance Sheet.

XPS Pensions (Nexus) Limited

In November 2023, the Company's wholly-owned operating subsidiary in the United Kingdom, SIEL, acquired all of the outstanding equity of XPS Pensions (Nexus) Limited, principal employer and scheme funder of the National Pensions Trust (NPT), from its parent company, XPS Pensions Group PLC (XPS). The total purchase price for XPS Pensions (Nexus) Limited included a contingent consideration payable to the sellers subject to the achievement of certain post-closing performance measurements determined during intervals occurring withintwo years immediately following the closing date. During the second quarter 2025, the Company determined the achievement of the performance measurements would not be met and wrote off $2,587 representing the remaining balance of the contingent consideration obligation to the sellers. The gain from the write off of the contingent consideration is reflected in Facilities, supplies and other costs on the Consolidated Statement of Operations.

Family Office Services

On February 27, 2025, the Company announced the entry into a definitive agreement with Aquiline Capital Partners LP (Aquiline) to acquire the Company's Family Office Services business. On June 30, 2025, all conditions subject to closing the transaction were satisfied. The Company received gross proceeds of $116,020 from the sale and recognized a gain of $94,412, net of transaction costs and certain other purchase price adjustments. The Company's gain from the divestiture is included in Gain on sale of business on the accompanying Consolidated Statement of Operations. Prior to the divestiture, the results of operations of the Family Office Services business were reported in the Company's Investments in New Businesses segment.

Note 13 –Goodwill and Intangible Assets

The changes in the carrying amount of the Company's goodwill by segment are as follows:

The Company recognized $9,774 and $10,066 of amortization expense related to acquired intangible assets during the nine months ended September 30, 2025 and 2024, respectively.

Note 14 –Revenues from Contracts with Customers

The Company’s principal sources of revenues are: (1) asset management, administration and distribution fees primarily earned based upon a contractual percentage of net assets under management or administration; and (2) information processing and software servicing fees that are either recurring and primarily earned based upon the number of trust accounts being serviced or a percentage of the market value of the clients' assets processed on the Company's platforms, or non-recurring and based upon project-oriented contractual agreements related to client implementations.

Disaggregation of Revenue

The following tables provide additional information pertaining to the Company's revenues disaggregated by major product line and primary geographic market based on the location of the use of the products or services for each of the business segments for the three months ended September 30, 2025 and 2024:

The following tables provide additional information pertaining to the Company's revenues disaggregated by major product line and primary geographic market based on the location of the use of the products or services for each of the Company’s business segments for the nine months ended September 30, 2025 and 2024:

Investment management fees from pooled investment products - Revenues associated with clients' assets invested in Company-sponsored pooled investment products. Contractual fees are stated as a percentage of the market value of assets under management and collected on a monthly basis. Revenues are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Investment management fees from investment management agreements - Revenues based on assets of clients of the Institutional Investors segment primarily invested in Company-sponsored products. Each client is charged an investment management fee that is stated as a percentage of the market value of all assets under management. The client is billed directly on a quarterly basis. Revenues are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Revenues associated with the separately managed account program offered through registered investment advisors located throughout the United States. The contractual fee is stated as a percentage of the market value of all assets invested in the separately managed account and collected on a quarterly basis. Revenues are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Investment operations fees - Revenues earned from accounting and administrative services, distribution support services and regulatory and compliance services to investment management firms and family offices. The Company contracts directly with the investment management firm or family office. The contractual fees are stated as a percentage of net assets under administration and billed when asset valuations are finalized. Also includes income from client cash balances held in the FDIC-insured accounts through the SEI Integrated Cash program. Revenues are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Investment processing fees - Platform as a Service - Revenues associated with clients that outsource their entire investment operation and back-office processing functions. Through the use of the Company's proprietary platforms, the Company assumes all back-office investment processing services including investment processing, custody and safekeeping of assets, income collections, securities settlement and other related trust activities. The contractual fee is based on a monthly fee plus additional fees determined on a per-account or per-transaction basis. Contractual fees can also be stated as a percentage of the value of assets processed on the Company's platforms each month as long as the fee is in excess of a monthly contractual minimum. The client is billed directly on a monthly basis. Revenues are recognized in Information processing and software servicing fees on the accompanying Consolidated Statements of Operations.

Revenues associated with clients of the mutual fund trading solution are fees recognized for shareholder services and related services through the use of the Company's proprietary platform or through third-party vendor agreements. Contractual fees are stated as a percentage of the value of total assets or positions processed on the Company's platform or subject to third-party vendor agreements each month. Fees are billed and collected on a monthly and quarterly basis. These revenues were previously classified under Account fees and other in 2023 and have been reclassified to conform to the current year presentation.

Investment processing fees - Software as a Service - Revenues associated with clients of the Private Banks segment for application software services. Clients retain responsibility for all investment operations, client administration and other back-office trust operations. The contractual fee is based on a monthly fee plus additional fees determined on a per-account or per-transaction basis. The client is billed directly on a monthly basis.

Revenues associated with clients of the Investments in New Businesses segment processed on the Archway Platform SM are fees for hosted technology services to family offices and financial institutions. The Archway Platform is an integrated technology platform used for investment, operations, accounting and client reporting by these institutions. The contractual fee is based on a monthly subscription fee to access the Archway Platform along with additional fees on a per transaction basis.

Revenues associated with clients of the Institutional Investors segment processed on the SEI Novus SM portfolio intelligence tool are fees for data management, performance measurement, reporting, and risk analytics. The contractual fee is based on a fixed fee to access SEI Novus and includes fees for integration of historical fund data and custom reporting.

All revenues from investment processing fees are recognized in Information processing and software servicing fees on the accompanying Consolidated Statements of Operations.

Professional services fees - Revenues associated with the business services migration for investment processing clients of the Private Banks segment and investment operations clients of the Investment Managers segment. In addition, Professional services include other services such as business transformation consulting. Typically fees are stated as a contractual fixed fee. The client is billed directly and fees are collected according to the terms of the agreement.

Account fees and other - Revenues associated with custody account servicing, account terminations, reimbursements received for out-of-pocket expenses, and other fees for the provision of ancillary services.

Note 15 –Consolidated Variable Interest Entities

On July 31, 2025, the Company made a seed capital investment of $50,000 through a subscription agreement with the LSV Global Equity Market Neutral Fund, LP (LSV GEMNF), a limited partnership fund that was operationalized on July 1, 2025. LSV serves as the general partner and investment manager to the LSV GEMNF and makes all operational and investment decisions on behalf of the fund. LSV does not have a partnership interest in the LSV GEMNF.

The Company determined the LSV GEMNF to be a variable interest entity (VIE) in which it has a variable interest through its direct equity partnership interest and also determined LSV does not have a variable interest through its management fee as general partner to the fund. The Company concluded that it is the primary beneficiary as substantially all of the activities of the fund are currently conducted on behalf of the Company while the fund is in the seed capital stage and is therefore required to consolidate the accounts of the LSV GEMNF into its financial statements.

The Company recognized unrealized gains of $1,463 during the third quarter 2025 from the change in fair value of the seed capital investment in the LSV GEMNF. These gains are included in Net gain from consolidated variable interest entities on the accompanying Consolidated Statement of Operations.

The assets and liabilities of the LSV GEMNF presented on the accompanying Consolidated Balance Sheets consist of:

The assets presented in the table above may only be used to settle obligations of the LSV GEMNF and are not available for use by the Company to the extent they are held by non-controlling interests. Any debt or liabilities of the LSV GEMNF have no recourse to the Company’s general credit.