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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

For the quarterly period ended September 30, 2013

OR

For the transition period from                 to                

Commission file number 001-32195

GENWORTH FINANCIAL, INC.

(Exact Name of Registrant as Specified in its Charter)

(804) 281-6000

(Registrant’s Telephone Number, Including Area Code)

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 the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

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

As of October 23, 2013, 494,259,563 shares of Class A Common Stock, par value $0.001 per share, were outstanding.

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NOTE REGARDING THIS QUARTERLY REPORT

As previously announced, on April 1, 2013, we completed a holding company reorganization in connection with a comprehensive capital plan for our U.S. mortgage insurance business, which is discussed in further detail in note 1 of the financial statements in “Item 1—Financial Statements” of this Quarterly Report on Form 10-Q. Pursuant to the reorganization, the public holding company historically known as “Genworth Financial, Inc.” (now renamed Genworth Holdings, Inc. (“Genworth Holdings”)) became a direct, 100% owned subsidiary of a new public holding company that it had formed and that now has been renamed Genworth Financial, Inc. (“New Genworth”). In connection with the reorganization, all the stockholders of Genworth Holdings immediately prior to the completion of the reorganization automatically became stockholders of New Genworth, owning the same number of shares of stock in New Genworth that they owned in Genworth Holdings immediately prior to the reorganization. New Genworth, as the successor issuer to Genworth Holdings (pursuant to Rule 12g-3(a) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), began making filings under the Securities Act of 1933, as amended, and the Exchange Act, from April 1, 2013.

On April 1, 2013, in connection with the reorganization, Genworth Holdings distributed to New Genworth (as its sole stockholder), through a dividend (the “Distribution”), the 84.6% membership interest in one of its subsidiaries (Genworth Mortgage Holdings, LLC (“GMHL”)) that it held directly, and 100% of the shares of another of its subsidiaries (Genworth Mortgage Holdings, Inc. (“GMHI”)), that held the remaining 15.4% of outstanding membership interests of GMHL. At the time of the Distribution, GMHL and GMHI together owned (directly or indirectly) 100% of the shares or other equity interests of all of the subsidiaries that conducted Genworth Holdings’ U.S. mortgage insurance business (these subsidiaries also owned the subsidiaries that conducted Genworth Holdings’ European mortgage insurance business). As part of the comprehensive U.S. mortgage insurance capital plan, on April 1, 2013, immediately prior to the Distribution, Genworth Holdings contributed $100 million to the U.S. mortgage insurance subsidiaries.

On April 1, 2013, in connection with the reorganization (a) New Genworth provided a full and unconditional guarantee to the trustee of Genworth Holdings’ outstanding senior notes and the holders of the senior notes, on an unsecured unsubordinated basis, of the full and punctual payment of the principal of, premium, if any and interest on, and all other amounts payable under, each outstanding series of senior notes, and the full and punctual payment of all other amounts payable by Genworth Holdings under the senior notes indenture in respect of such senior notes and (b) New Genworth provided a full and unconditional guarantee to the trustee of Genworth Holdings’ outstanding subordinated notes and the holders of the subordinated notes, on an unsecured subordinated basis, of the full and punctual payment of the principal of, premium, if any and interest on, and all other amounts payable under, the outstanding subordinated notes, and the full and punctual payment of all other amounts payable by Genworth Holdings under the subordinated notes indenture in respect of the subordinated notes.

References to “Genworth,” the “Company,” “we” or “our” in this Quarterly Report on Form 10-Q (including in the condensed consolidated financial statements and notes thereto in this report) have the following meanings, unless the context otherwise requires:

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PART I—FINANCIAL INFORMATION

Item 1. Financial Statements

GENWORTH FINANCIAL, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Amounts in millions, except per share amounts)

See Notes to Condensed Consolidated Financial Statements

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GENWORTH FINANCIAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Amounts in millions, except per share amounts)

(Unaudited)

See Notes to Condensed Consolidated Financial Statements

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GENWORTH FINANCIAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Amounts in millions)

(Unaudited)

See Notes to Condensed Consolidated Financial Statements

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GENWORTH FINANCIAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

(Amounts in millions)

(Unaudited)

See Notes to Condensed Consolidated Financial Statements

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GENWORTH FINANCIAL, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in millions)

(Unaudited)

See Notes to Condensed Consolidated Financial Statements

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(1) Formation of Genworth and Basis of Presentation

Genworth Holdings, Inc. (“Genworth Holdings”) (formerly known as Genworth Financial, Inc.) was incorporated in Delaware on October 23, 2003. On April 1, 2013, Genworth Holdings completed a holding company reorganization pursuant to which Genworth Holdings became a direct, 100% owned subsidiary of a new public holding company it had formed. The new public holding company was incorporated in Delaware on December 5, 2012, in connection with the reorganization, under the name Sub XLVI, Inc., and was renamed Genworth Financial, Inc. upon the completion of the reorganization.

To implement the reorganization, Genworth Holdings formed New Genworth and New Genworth, in turn, formed Sub XLII, Inc. (“Merger Sub”). The holding company structure was implemented pursuant to Section 251(g) of the General Corporation Law of the State of Delaware (“DGCL”) by the merger of Merger Sub with and into Genworth Holdings (the “Merger”). Genworth Holdings survived the Merger as a direct, wholly-owned subsidiary of New Genworth and each share of Genworth Holdings Class A Common Stock, par value $0.001 per share (“Genworth Holdings Class A Common Stock”), issued and outstanding immediately prior to the Merger and each share of Genworth Holdings Class A Common Stock held in the treasury of Genworth Holdings immediately prior to the Merger converted into one issued and outstanding or treasury, as applicable, share of New Genworth Class A Common Stock, par value $0.001 per share, having the same designations, rights, powers and preferences and the qualifications, limitations and restrictions as the Genworth Holdings Class A Common Stock being converted.

Immediately after the consummation of the Merger, New Genworth had the same authorized, outstanding and treasury capital stock as Genworth Holdings immediately prior to the Merger. Each share of New Genworth common stock outstanding immediately prior to the Merger was cancelled.

Pursuant to Section 251(g) of the DGCL, the Merger did not require a vote of the stockholders of Genworth Holdings. Effective upon the consummation of the Merger, New Genworth adopted an amended and restated certificate of incorporation and amended and restated bylaws that were identical to those of Genworth Holdings immediately prior to the consummation of the Merger (other than provisions regarding certain technical matters, as permitted by Section 251(g) of the DGCL). New Genworth’s directors and executive officers immediately after the consummation of the Merger were the same as the directors and executive officers of Genworth Holdings immediately prior to the consummation of the Merger. Immediately after the consummation of the Merger, New Genworth had, on a consolidated basis, the same assets, businesses and operations as Genworth Holdings had immediately prior to the consummation of the Merger.

On April 1, 2013, in connection with the reorganization, immediately following the consummation of the Merger, Genworth Holdings distributed to New Genworth (as its sole stockholder), through a dividend (the “Distribution”), the 84.6% membership interest in one of its subsidiaries (Genworth Mortgage Holdings, LLC (“GMHL”)) that it held directly, and 100% of the shares of another of its subsidiaries (Genworth Mortgage Holdings, Inc. (“GMHI”)), that held the remaining 15.4% of outstanding membership interests of GMHL. At the time of the Distribution, GMHL and GMHI together owned (directly or indirectly) 100% of the shares or other equity interests of all of the subsidiaries that conducted Genworth Holdings’ U.S. mortgage insurance business (these subsidiaries also owned the subsidiaries that conducted Genworth Holdings’ European mortgage insurance business). As part of the comprehensive U.S. mortgage insurance capital plan, on April 1, 2013, immediately prior to the Distribution, Genworth Holdings contributed $100 million to the U.S. mortgage insurance subsidiaries.

The accompanying condensed financial statements include on a consolidated basis the accounts of: (a) for the periods prior to April 1, 2013, Genworth Holdings and the affiliated companies in which it held a majority

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

equity interest or where it was the primary beneficiary of a variable interest entity and (b) for the periods from and after April 1, 2013, New Genworth and the affiliated companies in which it held a majority voting interest or where it was the primary beneficiary of a variable interest entity. All intercompany accounts and transactions have been eliminated in consolidation.

References to “Genworth,” the “Company,” “we” or “our” in the accompanying condensed consolidated financial statements and these notes thereto have the following meanings, unless the context otherwise requires:

We have the following operating segments:

We also have Corporate and Other activities which include debt financing expenses that are incurred at the Genworth Holdings holding company level, unallocated corporate income and expenses, eliminations of inter-segment transactions and the results of other businesses that are managed outside of our operating segments.

On March 27, 2013, we announced that we had agreed to sell our wealth management business to AqGen Liberty Acquisition, Inc., a subsidiary of AqGen Liberty Holdings LLC, a partnership of Aquiline Capital

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Partners and Genstar Capital, for approximately $412 million. Historically, this business had been reported as a separate segment. As a result of the sale agreement, the financial statements and other disclosures herein have been revised to reclassify this business as discontinued operations and report its financial position, results of operations and cash flows separately for all periods presented. The sale closed on August 30, 2013 and we received net proceeds of approximately $360 million. Also included in discontinued operations was our tax and advisor unit, Genworth Financial Investment Services, which was part of our wealth management business until the closing of its sale on April 2, 2012. See note 10 for additional information related to discontinued operations.

The accompanying condensed consolidated financial statements are unaudited and have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Preparing financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect reported amounts and related disclosures. Actual results could differ from those estimates. These condensed consolidated financial statements include all adjustments (including normal recurring adjustments) considered necessary by management to present a fair statement of the financial position, results of operations and cash flows for the periods presented. The results reported in these condensed consolidated financial statements should not be regarded as necessarily indicative of results that may be expected for the entire year. The condensed consolidated financial statements included herein should be read in conjunction with the audited consolidated financial statements and related notes contained in our Current Report on Form 8-K filed on May 30, 2013, which reflected the reclassification of our wealth management business as discontinued operations, adjustments to correct an error related to premium refund accrual in our U.S. mortgage insurance business, the addition of a footnote in the notes to the consolidated financial statements that provides required supplemental guarantor financial information related to certain guarantees we gave in connection with the reorganization in which we became the parent company to Genworth Holdings and the addition of certain disclosures about offsetting assets and liabilities required by newly adopted accounting guidance. Certain prior year amounts have been reclassified to conform to the current year presentation.

(2) Accounting Changes

Accounting Pronouncements Recently Adopted

On July 17, 2013, we adopted new accounting guidance to provide additional flexibility in the benchmark interest rates used when applying hedge accounting. The new guidance permits the use of the Federal Funds Effective Swap Rate as a benchmark interest rate for hedge accounting purposes and removes certain restrictions on being able to apply hedge accounting for similar hedges using different benchmark interest rates. The adoption of this accounting guidance did not have a material impact on our consolidated financial statements.

On January 1, 2013, we adopted new accounting guidance for disclosures about offsetting assets and liabilities. This guidance requires an entity to disclose information about offsetting and related arrangements to enable users to understand the effect of those arrangements on its financial position. The adoption of this accounting guidance impacted our disclosures only and did not impact our consolidated results.

On January 1, 2013, we adopted new accounting guidance related to the presentation of the reclassification of items out of accumulated other comprehensive income into net income. The adoption of this accounting guidance impacted our disclosures only and did not impact our consolidated results.

Accounting Pronouncements Not Yet Adopted

In June 2013, the Financial Accounting Standards Board issued new accounting guidance on the scope, measurement and disclosure requirements for investment companies. The new guidance clarifies the

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

characteristics of an investment company, provides comprehensive guidance for assessing whether an entity is an investment company, requires investment companies to measure noncontrolling ownership interest in other investment companies at fair value rather than using the equity method of accounting and requires additional disclosures. These new requirements will be effective for us on January 1, 2014 and are not expected to have a material impact on our consolidated financial statements.

(3) Earnings Per Share

Basic and diluted earnings per share are calculated by dividing each income category presented below by the weighted-average basic and diluted shares outstanding for the periods indicated:

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(4) Investments

(a) Net Investment Income

Sources of net investment income were as follows for the periods indicated:

(b) Net Investment Gains (Losses)

The following table sets forth net investment gains (losses) for the periods indicated:

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

We generally intend to hold securities in unrealized loss positions until they recover. However, from time to time, our intent on an individual security may change, based upon market or other unforeseen developments. In such instances, we sell securities in the ordinary course of managing our portfolio to meet diversification, credit quality, yield and liquidity requirements. If a loss is recognized from a sale subsequent to a balance sheet date due to these unexpected developments, the loss is recognized in the period in which we determined that we have the intent to sell the securities or it is more likely than not that we will be required to sell the securities prior to recovery. The aggregate fair value of securities sold at a loss during the three months ended September 30, 2013 and 2012 was $407 million and $228 million, respectively, which was approximately 93% and 96%, respectively, of book value. The aggregate fair value of securities sold at a loss during the nine months ended September 30, 2013 and 2012 was $1,293 million and $911 million, respectively, which was approximately 90% and 93%, respectively, of book value.

The following represents the activity for credit losses recognized in net income on debt securities where an other-than-temporary impairment was identified and a portion of other-than-temporary impairments was included in other comprehensive income (loss) (“OCI”) as of and for the periods indicated:

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(c) Unrealized Investment Gains and Losses

Net unrealized gains and losses on available-for-sale investment securities reflected as a separate component of accumulated other comprehensive income (loss) were as follows as of the dates indicated:

The change in net unrealized gains (losses) on available-for-sale investment securities reported in accumulated other comprehensive income (loss) was as follows as of and for the periods indicated:

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GENWORTH FINANCIAL, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)