SEIC 10-Q Quarter ended Sept. 30, 2010

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)*

for the quarterly period ended September 30, 2010

or

for the transition period from to

0-10200

(Commission File Number)

SEI INVESTMENTS COMPANY

(Exact name of registrant as specified in its charter)

1 Freedom Valley Drive, Oaks, Pennsylvania 19456-1100

(Address of principal executive offices)

(Zip Code)

(610) 676-1000

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes ¨ No x

The number of shares outstanding of the registrant’s common stock as of October 28, 2010 was 187,023,745.

(Cover page 1 of 1)

SEI Investments Company

(unaudited)

(In thousands)

The accompanying notes are an integral part of these consolidated financial statements.

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SEI Investments Company

Consolidated Balance Sheets

(unaudited)

(In thousands, except par value)

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The accompanying notes are an integral part of these consolidated financial statements.

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SEI Investments Company

(unaudited)

(In thousands, except per share data)

The accompanying notes are an integral part of these consolidated financial statements.

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SEI Investments Company

Consolidated Statements of Operations

(unaudited)

(In thousands, except per share data)

The accompanying notes are an integral part of these consolidated financial statements.

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SEI Investments Company

Consolidated Statements of Comprehensive Income

(unaudited)

(In thousands)

The accompanying notes are an integral part of these consolidated financial statements.

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SEI Investments Company

Consolidated Statements of Comprehensive Income

(unaudited)

(In thousands)

The accompanying notes are an integral part of these consolidated financial statements.

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SEI Investments Company

(unaudited)

(In thousands)

The accompanying notes are an integral part of these consolidated financial statements.

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Notes to Consolidated Financial Statements

(all figures are in thousands except per share data)

Nature of Operations

SEI Investments Company (the Company), a Pennsylvania corporation, provides investment processing, fund processing, and investment management business outsourcing solutions to corporations, financial institutions, financial advisors, and ultra-high-net-worth families in the United States, Canada, the United Kingdom, continental Europe, and other various locations throughout the world. Investment processing solutions utilize the Company’s proprietary software system to track investment activities in multiple types of investment accounts, including personal trust, corporate trust, institutional trust, and non-trust investment accounts, thereby allowing banks and trust companies to outsource trust and investment related activities. Revenues from investment processing solutions are recognized in Information processing and software servicing fees on the accompanying Consolidated Statements of Operations, except for fees earned associated with trade execution services.

The fund processing solution offers a full range of administration and distribution support services to mutual funds, collective trust funds, single-manager hedge funds, funds of hedge funds, private equity funds and other types of investment funds. Administrative services include fund accounting, trustee and custodial support, legal support, transfer agency and shareholder servicing. Distribution support services range from market and industry insight and analysis to identifying distribution opportunities. Revenues from fund processing solutions are recognized in Asset management, administration and distribution fees on the accompanying Consolidated Statements of Operations.

Investment management programs consist of mutual funds, alternative investments and separate accounts. These include a series of money market, equity, fixed-income and alternative investment portfolios, primarily in the form of registered investment companies. The Company serves as the administrator and investment advisor for many of these products. Revenues from investment management programs 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 has 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, 2010, the results of operations for the three and nine months ended September 30, 2010 and 2009, and cash flows for the nine month periods ended September 30, 2010 and 2009. 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, 2009.

Except as disclosed herein, there have been no significant changes in significant accounting policies during the nine months ended September 30, 2010 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2009.

Variable Interest Entities

The Company has involvement with various variable interest entities (VIE or VIEs). These VIEs consist of LSV Employee Group and investment products established for clients created in the form of various types of legal entity structures. In June 2009, the Financial Accounting Standards Board (FASB) issued new guidance related to the consolidation of VIEs. This guidance changed how a company determines when an entity that is insufficiently capitalized or is not controlled through voting common stock should be consolidated. The determination of whether a company is required to consolidate an entity is based on, among other things, an entity’s purpose and design, a company’s ability to direct the activities of the entity that most significantly impact the entity’s

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economic performance, and whether a company is obligated to absorb losses or receive benefits that could be potentially significant to the entity. The new guidance requires ongoing reassessments of whether an enterprise is the primary beneficiary of a VIE and requires additional disclosures about an enterprises involvement in VIEs. The new guidance became effective January 1, 2010.

Under the new guidance, LSV Employee Group remains a VIE. However, the Company is not considered the primary beneficiary because it does not have the power to direct the activities that most significantly impact the economic performance of LSV Employee Group either directly or through any financial responsibility from the Guaranty Agreement. As of January 1, 2010, the Company discontinued consolidating the accounts of LSV Employee Group. The Company does not have any direct equity interest in LSV Employee Group (See Note 2).

In January 2010, the FASB deferred the new guidance for certain types of investment entities. The deferral allows asset managers that have no obligation to fund potentially significant losses of an investment entity to continue to apply the previous guidance to investment entities that have attributes of entities defined in the “Investment Company Guide.” The deferral applies to many mutual funds, hedge funds, private equity funds, venture capital and certain other types of entities. Also, money market funds subject to rule 2a-7 of the Investment Company Act of 1940 qualify for deferral. However, the deferral does not apply to the new disclosure requirements. All of the Company’s investment products where the Company is the sponsor and/or investment manager that are VIEs qualify for the deferral; therefore, the Company will continue to apply the previous guidance for the consolidation of VIEs (See Note 3).

Cash and Cash Equivalents

Cash and cash equivalents includes $353,395 and $438,690 at September 30, 2010 and December 31, 2009, respectively, primarily invested in SEI-sponsored open-ended money market mutual funds. Cash and cash equivalents at December 31, 2009 includes $57,061 from LSV (See Note 2).

Restricted Cash

Restricted cash includes $16,000 and $17,000 at September 30, 2010 and December 31, 2009, respectively, 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 for broker-dealers. Additionally, Restricted cash includes $3,000 at September 30, 2010 and December 31, 2009 segregated for regulatory purposes related to trade-execution services conducted by SEI Investments (Europe) Limited.

Capitalized Software

The Company capitalized $28,097 and $35,051 of software development costs during the nine months ended September 30, 2010 and 2009, respectively. As of September 30, 2010, capitalized software placed into service included on the accompanying Consolidated Balance Sheet had a weighted average remaining life of approximately 11.7 years. Amortization expense related to capitalized software was $17,149 and $22,957 during the nine months ended September 30, 2010 and 2009, respectively. Included in total amortization expense during the nine months ended September 30, 2009 is additional expense of $7,643 due to the shortening of the useful life of previously capitalized software development costs related to the Global Wealth Platform. This change was due to the abandonment of these components in the fourth quarter 2009.

Software development costs capitalized during the nine months ended September 30, 2010 and 2009 relates to the continued development of the Global Wealth Platform (GWP). As of September 30, 2010, the net book value of GWP was $263,531 (net of accumulated amortization of $56,389), including $24,495 of capitalized software development costs in-progress associated with future releases. GWP has an estimated useful life of 15 years and a weighted average remaining life of 11.8 years. Amortization expense for GWP was $16,724 and $17,404 during the nine months ended September 30, 2010 and 2009, respectively.

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Earnings per Share

The calculations of basic and diluted earnings per share for the three months ended September 30, 2010 and 2009 are:

Employee stock options to purchase 9,810,000 and 18,684,000 shares of common stock, with an average exercise price of $25.53 and $22.40, were outstanding during the three month periods ended September 30, 2010 and 2009, respectively, but not included in the computation of diluted earnings per common share because the effect on diluted earnings per common share would have been anti-dilutive.

The calculations of basic and diluted earnings per share for the nine months ended September 30, 2010 and 2009 are:

Employee stock options to purchase 16,096,000 and 19,912,000 shares of common stock, with an average exercise price of $23.47 and $21.72, were outstanding during the nine month periods ended September 30, 2010 and 2009, respectively, but not included in the computation of diluted earnings

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per common share because the exercise price of the options 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.

Statements of Cash Flows

For purposes of the Consolidated Statements of Cash Flows, the Company considers investment instruments purchased with an original maturity of three months or less to be cash equivalents.

The following table provides the details of the adjustments to reconcile net income to net cash provided by operating activities for the nine months ended September 30:

During the three months ended September 30, 2010, the Company identified that it had incorrectly classified certain accounts payable related to the purchase of computer software during the three months ended June 30, 2010 as Additions to property and equipment in the Cash flows from investing activities section on the consolidated statement of cash flows in the six months ended June 30, 2010. The effect of the misclassification resulted in Cash flows provided by operating activities and Cash flows used in investing activities being overstated by $7,102 for the six months ended June 30, 2010. The Company has evaluated the effect of this misclassification and has concluded that it was not material to the previously issued quarterly consolidated financial statements. The remaining balance attributable to this purchase was $5,327 at September 30, 2010. The Company has appropriately classified this amount to the Cash flows from operating activities in its consolidated statement of cash flows for the nine months ended September 30, 2010 and will revise the consolidated statement of cash flows for the six months ended June 30, 2010 in its future filings. This misclassification had no effect on the consolidated balances sheets, consolidated statements of operations or consolidated statements of comprehensive income.

New Accounting Pronouncements

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In February 2010, the FASB issued a final Accounting Standards Update that sets forth additional requirements and guidance regarding disclosures of fair value measurements. The new standard requires the gross presentation of activity within the Level 3 fair value measurement rollforward and details of transfers in and out of Level 1 and 2 fair value measurements. It also clarifies two existing disclosure requirements on the level of disaggregation of fair value measurements and disclosures on inputs and valuation techniques. The new requirements and guidance are effective for interim and annual periods beginning in the first quarter 2010 except that the Level 3 rollforward is effective in the first quarter 2011. The adoption of the new requirements and guidance effective in the first quarter 2010 did not have a material impact on the Company’s consolidated financial statements. The Company does not expect the adoption of the guidance pertaining to the Level 3 rollforward to have a material impact on its consolidated financial statements.

Reclassifications

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

The Company has an investment in the general partnership LSV Asset Management (LSV). LSV is a registered investment advisor that provides investment advisory services to institutions, including pension plans and investment companies. LSV is currently an investment sub-advisor for a number of SEI-sponsored mutual funds. The Company’s total partnership interest in LSV was approximately 42 percent during 2010 and 2009.

LSV Employee Group is owned by several current employees of LSV and was formed for the sole purpose of owning a partnership interest in LSV. The Company does not own any interest in LSV Employee Group. In 2006, LSV Employee Group purchased an eight percent interest in LSV from two existing partners. LSV Employee Group obtained financing in the form of a term loan pursuant to the terms of a Credit Agreement to purchase the eight percent interest in LSV. The Company agreed to provide a Guaranty Agreement to the lenders of all obligations of LSV Employee Group under the Credit Agreement. The lenders have the right to seek payment from the Company of all obligations of LSV Employee Group under the Credit Agreement in the event of default. The Company’s direct interest in LSV was unchanged as a result of this transaction.

As a result of providing the Guaranty Agreement, LSV Employee Group became a VIE and the Company was considered the primary beneficiary. Also, given the Company’s direct ownership of 43 percent in LSV at the time of this transaction in 2006 and its controlling interest in LSV Employee Group through the Guaranty Agreement, the Company was required to consolidate the assets, liabilities and operations of LSV and LSV Employee Group. The partnership interest of the other existing partners of LSV was included in Noncontrolling interest.

In January 2010, new accounting guidance pertaining to the consolidation of VIEs became effective. Under the new guidance, the Company was not considered the primary beneficiary of LSV Employee Group. The Company, therefore, discontinued consolidating the accounts and operations of LSV and LSV Employee Group in its financial statements. The Company accounts for its interest in LSV using the equity method because of its less than 50 percent ownership. The Company’s interest in the net assets of LSV is reflected in Investment in unconsolidated affiliate on the accompanying Consolidated Balance Sheet and its interest in the earnings of LSV is reflected in Equity in earnings of unconsolidated affiliate on the accompanying Consolidated Statement of Operations. The deconsolidation of LSV had no effect on Net income attributable to SEI. Prior period financial statements are not reclassified for the new accounting guidance.

LSV Asset Management

At September 30, 2010, the Company’s total investment in LSV was $63,096. The investment in LSV exceeded the underlying equity in the net assets of LSV by $4,263, of which $3,062 is considered goodwill embedded in the investment. The Company receives partnership distributions from LSV on a quarterly basis. The Company received partnership distribution payments from LSV for $67,508 and $56,305 in the nine months ended September 30, 2010 and 2009, respectively. The

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partnership distribution payment of $21,242 received in January 2010 is reflected in LSV and LSV Employee Group cash balances, net on the accompanying Consolidated Statement of Cash Flows.

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The following table contains the condensed statements of operations of LSV for the three and nine months ended September 30, 2010:

The following table contains the condensed balance sheet of LSV at September 30, 2010:

LSV Employee Group

At the time of LSV Employee Group’s purchase of an eight percent interest in LSV, it was determined that $72,220 of the purchase price related to identifiable intangible assets and $19,780 was goodwill. The identifiable intangible assets have an estimated useful life of ten years and are amortized on a straight-line basis. Goodwill of $19,780 and intangible assets of $43,332 (net of accumulated amortization of $28,888) are included in the Company’s Consolidated Balance Sheet at December 31, 2009 but were the assets of LSV Employee Group. These amounts were eliminated through Noncontrolling interest. Amortization expense in the three and nine months ended September 30, 2009 on the accompanying Consolidated Statement of Operations includes $1,805 and $5,416, respectively, pertaining to the amortization of the intangible assets, but was eliminated through Noncontrolling interest and had no impact on net income.

In order to finance a portion of the purchase price, LSV Employee Group obtained financing from Bank of America, N.A. and certain other lenders in the form of a term loan pursuant to the terms of a Credit Agreement. The principal amount of the term loan was $82,800, which must be paid in full by January 2011. The principal amount and interest of the term loan are paid in quarterly installments. LSV Employee Group may prepay the term loan in whole or in part at any time without penalty. As of September 30, 2010, the remaining unpaid principal balance of the term loan was $13,123. This amount is not reflected, nor is it required to be reflected, in the Company’s Consolidated Balance Sheet at September 30, 2010. LSV Employee Group made principal payments of $7,429 during the nine months ended September 30, 2010. The deconsolidation of LSV Employee Group did not relinquish the Company’s obligation under the Guaranty Agreement. In the event of default by LSV Employee Group, the Company would still be obligated under the Guaranty Agreement to make any required payments to the lenders according to the term loan.

At December 31, 2009, prior to the deconsolidation of LSV Employee Group, the unpaid principal balance of the term loan was $20,552, of which $6,400 was classified as current and included in Current portion of long-term debt and the remaining $14,152 was included in Long-term debt on the accompanying Consolidated Balance Sheet.

Interest expense for the three and nine months ended September 30, 2009 on the Consolidated Statement of Operations includes $366 and $1,159, respectively, in interest costs associated with the

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borrowings of LSV Employee Group which was eliminated through Noncontrolling interest and had no impact on net income.

In October 2010, LSV Employee Group made a principal payment of $3,032. As of October 31, 2010, the remaining unpaid principal balance of the term loan was $10,091. Due to the fact that LSV Employee Group has satisfied all payment requirements relating to the term loan, the Company, in its capacity as guarantor, currently has no obligation to make any payments under the Guaranty Agreement. Furthermore, the Company fully expects that LSV Employee Group will meet all of its future obligations regarding the term loan.

The unaudited proforma financial information for the three and nine months ended September 30, 2009 presents the historical results of the Company as if the operations of LSV and LSV Employee Group had not been consolidated and LSV had been accounted for under the equity method. Net income attributable to SEI and diluted earnings per share were unchanged due to this transaction but are presented for the purpose of clarification.

The Company has created numerous investment products for its clients in various types of legal entity structures. The Company serves as the Manager, Administrator and Distributor for these investment products and may also serve as the Trustee for some of the investment products. Clients are the equity investors and participate in proportion to their ownership percentage in the net income and net capital gains 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.

An entity that lacks decision-making rights is a VIE. In some circumstances, the Manager or Trustee of the Company’s investment products controls the governing decisions about the investment activities with respect to the ongoing operations of the investment products without the equity investors possessing the right to remove the Manager or Trustee. Therefore, the equity investors, as a group, do not have the ability to make decisions that have an impact on the ongoing activities of such investment products. Consequently, some of the Company’s investment products have been determined to be VIEs at inception.

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The VIEs are marketed with investment objectives to generate positive returns; however, the nature of such investments exposes the investors to the risk that the value of the VIEs may increase or decrease. The purpose and design of the VIEs are to achieve the investment objective by implementing strategies which are designed to minimize potential losses; however, there is no assurance given that these strategies will be successful.

The Company does not have a significant equity investment in any of the VIEs and does not have an obligation to enter into any guarantee agreements with the VIEs. The fees paid to the decision maker of a VIE are considered to be variable interests if the decision maker is not subject to substantive kick-out rights. The fees paid to the Company represent a variable interest when the decision maker is not subject to substantive kick-out rights.

The Company is not the primary beneficiary of the VIEs because the expected fees and the expected return on any investment into the VIE by the Company relative to the expected returns of the VIE to the equity investor holders does not approach 50 percent of the expected losses or gains of the VIEs. Therefore, the Company is not required to consolidate any investment products that are VIEs into its financial statements. The Company’s variable interest in the VIEs, which consists of management fees and in some situations, seed capital, would not be considered a significant variable interest.

The risks to the Company associated with its involvement with any of the investment products that are VIEs are limited to the cash flows received from the revenue generated for asset management, administration and distribution services and any equity investments in the VIEs. Both of these items are immaterial. The Company has no other financial obligation to the VIEs.

Amounts relating to fees received from the VIEs included in Receivables and amounts relating to equity investments in the VIEs included in Investments Available for Sale on the Company’s Consolidated Balance Sheets are immaterial to the total current assets of the Company.

Receivables

Receivables on the accompanying Consolidated Balance Sheets consist of:

Fees earned, not billed represents receivables 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.

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

Receivables at December 31, 2009 include $66,392, net of $1,149 of allowance for doubtful accounts, of receivables of LSV, of which $59,241 was included in Fees earned, not billed.

Property and Equipment

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

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