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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

For the quarterly period ended March 31, 2013

or

For the Transition Period from                     to                     

Commission File Number 001-32205

CBRE GROUP, INC.

(Exact name of Registrant as specified in its charter)

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.

Large accelerated filer  x    Accelerated filer  ¨    Non-accelerated filer  ¨    Smaller reporting company  ¨

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 of Class A common stock outstanding at April 30, 2013 was 331,200,348.

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FORM 10-Q

March 31, 2013

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CBRE GROUP, INC.

CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, except share data)

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

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CBRE GROUP, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

(Dollars in thousands, except share data)

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

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CBRE GROUP, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

(Dollars in thousands)

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

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CBRE GROUP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

(Dollars in thousands)

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

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CBRE GROUP, INC.

CONSOLIDATED STATEMENT OF EQUITY

(Unaudited)

(Dollars in thousands)

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

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1. Basis of Presentation

The accompanying consolidated financial statements of CBRE Group, Inc., a Delaware corporation (which may be referred to in these financial statements as the “company”, “we”, “us” and “our”), have been prepared in accordance with the rules applicable to Form 10-Q and include all information and footnotes required for interim financial statement presentation, but do not include all disclosures required under accounting principles generally accepted in the United States (GAAP) for annual financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments, except as otherwise noted) considered necessary for a fair presentation have been included. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, and reported amounts of revenue and expenses. Such estimates include the value of goodwill, intangibles and other long-lived assets, real estate assets, accounts receivable, investments in unconsolidated subsidiaries and assumptions used in the calculation of income taxes, retirement and other post-employment benefits, among others. These estimates and assumptions are based on management’s best judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including consideration of the current economic environment, and adjusts such estimates and assumptions when facts and circumstances dictate. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in these estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods. Certain reclassifications have been made to the 2012 financial statements to conform with the 2013 presentation.

The results of operations for the three months ended March 31, 2013 are not necessarily indicative of the results of operations to be expected for the year ending December 31, 2013. The unaudited interim consolidated financial statements and notes to consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2012, which contains the latest available audited consolidated financial statements and notes thereto, which are as of and for the year ended December 31, 2012.

2. New Accounting Pronouncements

In December 2011, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2011-10, “Property, Plant, and Equipment (Topic 360): Derecognition of in Substance Real Estate – a Scope Clarification.” This ASU requires that a reporting entity that ceases to have a controlling financial interest in a subsidiary that is in substance real estate as a result of default on the subsidiary’s nonrecourse debt would apply FASB Accounting Standards Codification (ASC) Subtopic 360-20, “Property, Plant, and Equipment – Real Estate Sales,” to determine whether to derecognize assets and liabilities of that subsidiary. ASU 2011-10 is effective prospectively for a deconsolidation event that takes place in fiscal years, and interim periods within those years, beginning on or after June 15, 2012. The adoption of this update on January 1, 2013 did not have a material effect on our consolidated financial position or results of operations.

In December 2011, the FASB issued ASU 2011-11, “Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities.” This ASU adds certain additional disclosure requirements about financial instruments and derivative instruments that are subject to netting arrangements. In January 2013, the FASB issued ASU 2013-01, “Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities,” which clarifies that ordinary trade receivables and receivables in general are not in the scope of ASU 2011-11. Both ASU 2011-11 and ASU 2013-01 are effective for fiscal years, and interim periods within those years, beginning on or after January 1, 2013, with retrospective application required. The adoption of these updates on January 1, 2013 did not have a material impact on our disclosure requirements for our consolidated financial statements.

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(Unaudited)

In February 2013, the FASB issued ASU 2013-02, “Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” This ASU requires an entity to provide information about amounts reclassified out of accumulated other comprehensive income. An entity is also required to present either on the face of the financial statements or in the footnotes, significant items reclassified out of accumulated other comprehensive income by the respective line items of net income, but only if the item reclassified is required under GAAP to be reclassified to net income in its entirety. For other items that are not required under GAAP to be reclassified to net income in their entirety, an entity is required to cross-reference to other disclosures required under GAAP that provide additional detail about those amounts. ASU 2013-02 is effective prospectively for fiscal years beginning after December 15, 2012, with early adoption permitted. The adoption of this update on January 1, 2013 did not have a material effect on our consolidated financial position, results of operations or disclosure requirements for our consolidated financial statements.

In March 2013, the FASB issued ASU 2013-05, “Foreign Currency Matters (Topic 830): Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity.” This ASU states that when a reporting entity (parent) ceases to have a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real estate or conveyance of oil and gas mineral rights) within a foreign entity, the parent is required to apply the guidance in Subtopic 830-30 to release any related cumulative translation adjustment into net income. Accordingly, the cumulative translation adjustment should be released into net income only if the sale or transfer results in the complete or substantially complete liquidation of the foreign entity in which the subsidiary or group of assets had resided. ASU 2013-05 is effective prospectively for fiscal years (and interim reporting periods within those years) beginning after December 15, 2013, with early adoption permitted. We do not believe the adoption of this update will have a material effect on our consolidated financial position or results of operations.

3. Variable Interest Entities (VIEs)

A consolidated subsidiary (the Venture) in our Global Investment Management segment has sponsored investments by third-party investors in certain commercial properties through the formation of tenant-in-common limited liability companies and Delaware Statutory Trusts (collectively referred to as the Entities) that are owned by the third-party investors. The Venture also has formed and is a member of a limited liability company for each property that serves as master tenant (Master Tenant). Each Master Tenant leases the property from the Entities through a master lease agreement. Pursuant to the master lease agreements, the Master Tenant has the power to direct the day-to-day asset management activities that most significantly impact the economic performance of the Entities. As a result, the Entities were deemed to be VIEs since the third-party investors holding the equity investment at risk in the Entities do not direct the day-to-day activities that most significantly impact the economic performance of the properties held by the Entities. The Venture has made and may continue to make voluntary contributions to each of these properties to support their operations beyond the cash flow generated by the properties themselves. As of the most recent reconsideration date, such financial support has been significant enough that the Venture was deemed to be the primary beneficiary of each Entity.

During the three months ended March 31, 2012, the Venture funded $0.2 million of financial support to the Entities.

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(Unaudited)

Operating results relating to the Entities for the three months ended March 31, 2013 and 2012 include the following (dollars in thousands):

Investments in real estate of $41.2 million and $58.8 million and nonrecourse mortgage notes payable of $41.4 million ($0.9 million of which is current) and $61.7 million ($1.3 million of which is current) are included in real estate assets held for investment and notes payable on real estate, respectively, in the accompanying consolidated balance sheets as of March 31, 2013 and December 31, 2012, respectively. In addition, non-controlling deficits of $0.3 million and $2.7 million in the accompanying consolidated balance sheets as of March 31, 2013 and December 31, 2012, respectively, are attributable to the Entities.

We hold variable interests in certain VIEs in our Global Investment Management and Development Services segments which are not consolidated as it was determined that we are not the primary beneficiary. Our involvement with these entities is in the form of equity co-investments and fee arrangements.

In connection with our acquisition of Clarion Real Estate Securities (CRES) in 2011, we acquired CRES co-investments from ING Group N.V. in three funds (CRES Funds). In January 2012, one of the CRES Funds (CBRE Clarion U.S., L.P.) was converted to a registered mutual fund, the CBRE Clarion Long/Short Fund (the Fund). As a result of this triggering event, we determined that the Fund became a VIE and that we were not the primary beneficiary. Accordingly, in the first quarter of 2012, the Fund was deconsolidated from our consolidated financial statements and we recorded an investment in available for sale securities of $14.3 million. No gain or loss was recognized in our consolidated statement of operations as a result of this deconsolidation. We continue to act as the Fund’s adviser, make investment decisions for the Fund and review, supervise and administer the Fund’s investment program.

As of March 31, 2013 and December 31, 2012, our maximum exposure to loss related to the VIEs which are not consolidated was as follows (dollars in thousands):

4. Fair Value Measurements

The “Fair Value Measurements and Disclosures” Topic of the FASB ASC (Topic 820) defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(Unaudited)

or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Topic 820 also establishes a three-level fair value hierarchy that prioritizes the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

There were no transfers in and out of Level 1 and Level 2 during the three months ended March 31, 2013 and 2012.

The following tables present the fair value of assets and liabilities measured at fair value on a recurring basis as of March 31, 2013 and December 31, 2012 (dollars in thousands):

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(Unaudited)

Fair value measurements for our available for sale securities are obtained from independent pricing services which utilize observable market data that may include quoted market prices, dealer quotes, market spreads, cash flows, the U.S. treasury yield curve, trading levels, market consensus prepayment speeds, credit information and the instrument’s terms and conditions.

The trading securities and securities sold, not yet purchased are primarily in the U.S. and are generally valued at the last reported sales price on the day of valuation or, if no sales occurred on the valuation date, at the mean of the bid and asked prices on such date.

The fair values of the warehouse receivables are calculated based on already locked in security buy prices. At March 31, 2013 and December 31, 2012, all of the warehouse receivables included in the accompanying consolidated balance sheets were either under commitment to be purchased by Freddie Mac or had confirmed forward trade commitments for the issuance and purchase of Fannie Mae mortgage backed securities that will be secured by the underlying warehouse lines of credit. These assets are classified as Level 2 in the fair value hierarchy as all inputs are readily observable.

The valuation of interest rate swaps is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of future interest rates (forward curves) derived from observable market interest rate forward curves. To comply with the provisions of Topic 820, we incorporate

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(Unaudited)

credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. In conjunction with our adoption of ASU 2011-04, “Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs,” we made an accounting policy election to measure the credit risk of our derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio. Although we have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by us and our counterparties. However, as of March 31, 2013, we have determined that the credit valuation adjustments are not significant to the overall valuation of our derivatives. As a result, we have determined that our derivative valuations in their entirety are classified in Level 2 in the fair value hierarchy.

There were no significant non-recurring fair value measurements recorded during the three months ended March 31, 2013 and 2012.

FASB ASC Topic 825, “Financial Instruments” requires disclosure of fair value information about financial instruments, whether or not recognized in the accompanying consolidated balance sheets. Our financial instruments are as follows:

Cash and Cash Equivalents and Restricted Cash: These balances include cash and cash equivalents as well as restricted cash with maturities of less than three months. The carrying amount approximates fair value due to the short-term maturities of these instruments.

Receivables, less Allowance for Doubtful Accounts: Due to their short-term nature, fair value approximates carrying value.

Warehouse Receivables: These balances are carried at fair value based on market prices at the balance sheet date.

Trading and Available for Sale Securities: These investments are carried at their fair value.

Securities Sold, not yet Purchased: These liabilities are carried at their fair value.

Short-Term Borrowings: The majority of this balance represents our warehouse lines of credit and our revolving credit facility outstanding for CBRE Capital Markets, Inc. (CBRE Capital Markets). Due to the short-term nature and variable interest rates of these instruments, fair value approximates carrying value.

5.00% Senior Notes: Based on dealers’ quotes (which falls within Level 2 of the fair value hierarchy), the estimated fair value of our 5.00% senior notes was $809.2 million at March 31, 2013. Their actual carrying value totaled $800.0 million at March 31, 2013 (see Note 9).

11.625% Senior Subordinated Notes: Based on dealers’ quotes (which falls within Level 2 of the fair value hierarchy), the estimated fair value of our 11.625% senior subordinated notes was $475.2 million and $488.8 million at March 31, 2013 and December 31, 2012, respectively. Their actual carrying value totaled $440.9 million and $440.5 million at March 31, 2013 and December 31, 2012, respectively.

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(Unaudited)

Senior Secured Term Loans: Since we refinanced our credit agreement and entered into new senior secured term loans on March 28, 2013, the actual carrying value of such loans at March 31, 2013 of $415.0 million is deemed to approximate their estimated fair value (see Note 9). Based upon information from third-party banks, the estimated fair value of our senior secured term loans was approximately $1.6 billion at December 31, 2012, which approximated their actual carrying value at December 31, 2012.

6.625% Senior Notes: Based on dealers’ quotes (which falls within Level 2 of the fair value hierarchy), the estimated fair value of our 6.625% senior notes was $378.9 million and $385.0 million at March 31, 2013 and December 31, 2012, respectively. Their actual carrying value totaled $350.0 million at both March 31, 2013 and December 31, 2012.

Notes Payable on Real Estate: As of March 31, 2013 and December 31, 2012, the carrying value of our notes payable on real estate was $242.6 million and $326.0 million, respectively (see Note 8). These borrowings have mostly floating interest rates at spreads over a market rate index. It is likely that some portion of our notes payable on real estate have fair values lower than actual carrying values. Given our volume of notes payable and the cost involved in estimating their fair value, we determined it was not practicable to do so. Additionally, only $12.9 million and $13.9 million of these notes payable were recourse to us as of March 31, 2013 and December 31, 2012, respectively.

5. Investments in Unconsolidated Subsidiaries

Investments in unconsolidated subsidiaries are accounted for under the equity method of accounting. Combined condensed financial information for these entities is as follows (dollars in thousands):

Our Global Investment Management segment involves investing our own capital in certain real estate investments with clients. We have provided investment management, property management, brokerage and other professional services in connection with these real estate investments on an arm’s length basis and earned revenues from these unconsolidated subsidiaries. We have also provided development, property management and brokerage services to certain of our unconsolidated subsidiaries in our Development Services segment on an arm’s length basis and earned revenues from these unconsolidated subsidiaries.

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CBRE GROUP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(Unaudited)

6. Real Estate and Other Assets Held for Sale and Related Liabilities