SUMMARY

The following summary highlights selected information described in more detail elsewhere in this joint proxy statement/prospectus and the documents incorporated by reference into this joint proxy statement/prospectus and may not contain all the information that may be important to you. To understand the transactions and the matters being voted on by OfficeMax stockholders and Office Depot stockholders at their respective special meetings more fully, and to obtain a more complete description of the legal terms of the merger agreement, you should carefully read this entire document, including the annexes, and the documents to which Office Depot and OfficeMax refer you. Each item in this summary includes a page reference directing you to a more complete description of that topic. See “Where You Can Find More Information” beginning on page 221.

The Parties (see pages 49 and 50)

OfficeMax Incorporated

OfficeMax Incorporated, a Delaware corporation and referred to in this joint proxy statement/prospectus as “OfficeMax,” is a leader in both business-to-business and retail office products distribution. OfficeMax provides office supplies and paper, print and document services, technology products and solutions and office furniture and facilities products to large, medium and small businesses, government offices and consumers. OfficeMax customers are served by approximately 29,000 associates through direct sales, catalogs, the Internet and more than 900 retail stores located throughout the United States, Canada, Australia, New Zealand, Mexico, the U.S. Virgin Islands and Puerto Rico. Shares of OfficeMax common stock are traded on the New York Stock Exchange (referred to in this joint proxy statement/prospectus as the “NYSE”) under the symbol “OMX.” The principal executive offices of OfficeMax are located at 263 Shuman Boulevard, Naperville, Illinois 60563, and its telephone number is (630) 438-7800.

Mapleby Holdings Merger Corporation

Mapleby Holdings Merger Corporation, a Delaware corporation and referred to in this joint proxy statement/prospectus as “New OfficeMax,” is a direct, wholly-owned subsidiary of OfficeMax. Mapleby Holdings Merger Corporation was formed by OfficeMax solely in contemplation of the transactions, has not conducted any business and has no assets, liabilities or obligations of any nature other than as set forth in the merger agreement. Its principal executive offices are located at c/o OfficeMax Incorporated, 263 Shuman Boulevard, Naperville, Illinois 60563, and its telephone number is (630) 438-7800.

Mapleby Merger Corporation

Mapleby Merger Corporation, a Delaware corporation and referred to in this joint proxy statement/prospectus as “Merger Sub One,” is a direct, wholly-owned subsidiary of Mapleby Holdings Merger Corporation and an indirect, wholly-owned subsidiary of OfficeMax. Mapleby Merger Corporation was formed by OfficeMax solely in contemplation of the transactions, has not conducted any business and has no assets, liabilities or obligations of any nature other than as set forth in the merger agreement. Its principal executive offices are located at c/o OfficeMax Incorporated, 263 Shuman Boulevard, Naperville, Illinois 60563, and its telephone number is (630) 438-7800.

Office Depot, Inc.

Office Depot, Inc., a Delaware corporation and referred to in this joint proxy statement/prospectus as “Office Depot,” is a global supplier of office products and services. Office Depot provides office supplies and services through 1,629 worldwide retail stores (including retail stores wholly-owned and operated by Office Depot, retail stores operated by Office Depot de México, S.A. de C.V., Office Depot’s Mexican joint venture, and retail stores

operated under Office Depot’s franchise and licensing agreements), a field sales force, top-rated catalogs and global e-commerce operations. Sales are processed through multiple channels, consisting of office supply stores, a contract sales force, an outbound telephone account management sales force, Internet sites, direct marketing catalogs and call centers, all supported by a network of supply chain facilities and delivery operations. Office Depot employs about 38,000 associates and serves customers in 59 countries worldwide. Shares of Office Depot common stock are traded on the NYSE under the symbol “ODP.” The principal executive offices of Office Depot are located at 6600 North Military Trail, Boca Raton, Florida 33496, and its telephone number is (561) 438-4800.

Dogwood Merger Sub Inc.

Dogwood Merger Sub Inc., a Delaware corporation and referred to in this joint proxy statement/prospectus as “Merger Sub Two,” is a direct, wholly-owned subsidiary of Office Depot. Dogwood Merger Sub Inc. was formed by Office Depot solely in contemplation of the transactions, has not conducted any business and has no assets, liabilities or other obligations of any nature other than as set forth in the merger agreement. Its principal executive offices are located at c/o Office Depot, Inc., 6600 North Military Trail, Boca Raton, Florida 33496, and its telephone number is (561) 438-4800.

Dogwood Merger Sub LLC

Dogwood Merger Sub LLC, a Delaware limited liability company and referred to in this joint proxy statement/prospectus as “Merger Sub Three,” is a direct, wholly-owned subsidiary of Office Depot. Dogwood Merger Sub LLC was formed by Office Depot solely in contemplation of the transactions, has not conducted any business and has no assets, liabilities or other obligations of any nature other than as set forth in the merger agreement. Its principal executive offices are located at c/o Office Depot, Inc., 6600 North Military Trail, Boca Raton, Florida 33496, and its telephone number is (561) 438-4800.

The Transactions (see page 64)

Office Depot, Merger Sub Two, Merger Sub Three, New OfficeMax, Merger Sub One and OfficeMax have entered into the merger agreement pursuant to which, through a series of transactions including the first merger and the second merger, OfficeMax will become an indirect, wholly-owned subsidiary of Office Depot, and OfficeMax stockholders will become stockholders of Office Depot.

OfficeMax stockholders are receiving this document in connection with OfficeMax’s solicitation of proxies for its special meeting of stockholders to vote on, among other things, the proposal to adopt the merger agreement and to approve the first merger and the second merger as contemplated by the merger agreement.

Office Depot stockholders are receiving this document in connection with Office Depot’s solicitation of proxies for its special meeting of stockholders to vote on, among other things, the proposal to issue Office Depot common stock to the OfficeMax stockholders pursuant to the merger agreement.

Structure and Effects of the Transactions (see page 64)

Upon the terms and subject to the conditions set forth in the merger agreement and in accordance with Delaware law, on the closing date:

Set forth below is a diagram depicting the structure of the first merger and the LLC conversion described under the first and second bullet points above.

Set forth below is a diagram depicting the structure of the second merger and the third merger described under the third and fourth bullet points above.

The first merger, the second merger, the third merger and the LLC conversion are collectively referred to in this joint proxy statement/prospectus as the “transactions.” In structuring the transactions as described above, the parties took into account, among other things, the effect of the transactions on certain contractual obligations of Office Depot and OfficeMax, as well as the desire to preserve tax-free reorganization treatment. For diagrams depicting the structure of the transactions described above, see “The Transactions—Effects of the Transactions” beginning on page 64.

At the effective time of the first merger, each share of OfficeMax common stock issued and outstanding immediately prior to the effective time of the first merger will be converted into one share of common stock of

New OfficeMax. Each of OfficeMax and New OfficeMax will take all actions as may be necessary so that at the effective time of the first merger, each OfficeMax stock option and each other OfficeMax stock-based award will, automatically and without any action on behalf of the holder thereof, be converted into a stock option or award, as the case may be, denominated in, or measured in whole or in part by the value of, shares of capital stock of New OfficeMax.

At the effective time of the second merger, each share of New OfficeMax common stock issued and outstanding immediately prior to the effective time of the second merger (excluding any shares held by Office Depot, Merger Sub Two or in treasury, which shares will be cancelled and no payment will be made with respect to such shares) will be converted into the right to receive 2.69 shares of Office Depot common stock (referred to in this joint proxy statement/prospectus as the “exchange ratio”), together with cash in lieu of fractional shares, if any, and unpaid dividends and distributions, if any, pursuant to the merger agreement.

For more information, see also “The Merger Agreement—Effects of the Transactions” beginning on page 154.

The exchange ratio is fixed and will not be adjusted for changes in the market value of shares of Office Depot common stock or OfficeMax common stock. Because the exchange ratio was fixed at the time the merger agreement was executed and because the market value of Office Depot common stock and OfficeMax common stock will fluctuate during the pendency of the transactions, OfficeMax stockholders cannot be sure of the value of the shares of Office Depot common stock they will receive relative to the value of their shares of OfficeMax common stock. See also “Risk Factors—Risks Relating to the Transactions” beginning on page 40.

Office Depot Special Meeting (see page 51)

Date, Time and Place. The Office Depot special meeting will be held on July 10, 2013, beginning at 11:00 a.m., local time, at Boca Raton Marriott at Boca Center, 5150 Town Center Circle, Boca Raton, Florida 33486, unless postponed to a later date.

Purpose. The special meeting of Office Depot stockholders is being held to consider and vote on the following proposals:

Record Date; Voting Rights. The record date for the determination of stockholders entitled to notice of and to vote at the Office Depot special meeting is May 28, 2013. Only Office Depot stockholders who held shares of record at the close of business on May 28, 2013 are entitled to vote at the special meeting and any adjournment or postponement of the special meeting, so long as such shares remain outstanding on the date of the special meeting. Office Depot common stock and Office Depot convertible preferred stock are the only classes of stock entitled to vote, and holders of Office Depot common stock and Office Depot convertible preferred stock are entitled to vote on each proposal presented at the Office Depot special meeting. Each share of Office Depot common stock entitles its holder of record to one vote at the Office Depot special meeting. As of the record date, the 350,000 shares of Office Depot convertible preferred stock issued and outstanding entitle funds advised by BC Partners Ltd and its affiliates (collectively referred to in this joint proxy statement/prospectus as “BC Partners”) as the record holder to a total of 81,354,536 votes (on an as-converted basis) at the Office Depot special meeting.

Vote Required. The votes required for each proposal are as follows:

As of the record date, there were 288,755,605 shares of Office Depot common stock outstanding, held by 6,170 holders of record, and 350,000 shares of Office Depot convertible preferred stock outstanding, all of which are held of record by BC Partners. In addition, as of the record date, Office Depot directors and executive officers, as a group, owned and were entitled to vote 10,071,224 shares of Office Depot common stock, or approximately 3.49% of the outstanding shares of Office Depot common stock. Office Depot currently expects that these directors and executive officers will vote their shares in favor of the proposal to approve the Office Depot share issuance, although none of them has entered into any agreement obligating them to do so.

Concurrently with the execution of the merger agreement, Office Depot and OfficeMax entered into a voting agreement (referred to in this joint proxy statement/prospectus as the “voting agreement”) with BC Partners, pursuant to which BC Partners agreed, among other matters and upon the terms and subject to the conditions set forth in the voting agreement, to vote all of their shares of Office Depot convertible preferred stock, together with any other voting securities of Office Depot acquired by BC Partners after February 20, 2013, in favor of the Office Depot share issuance and the other actions contemplated by the merger agreement and against any alternative transaction proposal with respect to Office Depot. BC Partners holds all of the 350,000 shares of Office Depot convertible preferred stock, representing, on an as-converted basis, approximately 22% of the voting power of Office Depot as of the record date.

OfficeMax Special Meeting (see page 57)

Date, Time and Place. The OfficeMax special meeting will be held on July 10, 2013, beginning at 10:00 a.m., local time, at Hotel Arista at CityGate Centre, 2139 CityGate Lane, Naperville, Illinois 60563, unless postponed to a later date.

Purpose. The special meeting of OfficeMax stockholders is being held to consider and vote on the following proposals:

Record Date; Voting Rights. The record date for the determination of stockholders entitled to notice of and to vote at the OfficeMax special meeting is May 28, 2013. Only OfficeMax stockholders who held shares of record at the close of business on May 28, 2013 are entitled to vote at the special meeting and any adjournment

or postponement of the special meeting, so long as such shares remain outstanding on the date of the special meeting. OfficeMax common stock and OfficeMax Series D preferred stock are the only classes of stock entitled to vote, and holders of OfficeMax common stock and OfficeMax Series D preferred stock are entitled to vote on each proposal presented at the OfficeMax special meeting. Each share of OfficeMax common stock entitles its holder of record to one vote at the OfficeMax special meeting, and each share of OfficeMax Series D preferred stock entitles its holder of record to one vote at the OfficeMax special meeting.

Vote Required. The votes required for each proposal are as follows:

As of the record date, there were 87,078,485 shares of OfficeMax common stock outstanding, held by 9,142 holders of record, and 603,986 shares of OfficeMax Series D preferred stock outstanding, all of which were held of record by Vanguard Fiduciary Trust Company, as trustee. In addition, as of the record date, OfficeMax directors and executive officers, as a group, owned and were entitled to vote 354,823 shares of OfficeMax common stock, or approximately 0.41% of the outstanding shares of OfficeMax common stock, and were entitled to vote 3,781 shares of OfficeMax Series D preferred stock, or approximately 0.63% of the outstanding shares of OfficeMax Series D preferred stock. OfficeMax currently expects that these directors and executive officers will vote their shares in favor of the proposal to adopt the merger agreement and to approve the first merger and the second merger, although none of them has entered into any agreement obligating them to do so.

Recommendation of Office Depot’s Board of Directors and Reasons for the Transactions (see page 81)

Office Depot’s board of directors recommends that Office Depot stockholders vote “FOR” the approval of the issuance of shares of Office Depot common stock pursuant to the merger agreement (referred to in this joint proxy statement/prospectus as the “Office Depot share issuance”).

In the course of reaching its decision to approve the merger agreement and the transactions contemplated by the merger agreement, including the Office Depot share issuance, Office Depot’s board of directors considered a number of factors in its deliberations. For a more complete discussion of these factors, see “The Transactions—Recommendation of Office Depot’s Board of Directors and Reasons for the Transactions” beginning on page 81.

Recommendation of OfficeMax’s Board of Directors and Reasons for the Transactions (see page 85)

OfficeMax’s board of directors recommends that OfficeMax stockholders vote “FOR” the adoption of the merger agreement and approval of the first merger and the second merger.

In the course of reaching its decision to approve the merger agreement and the transactions contemplated by the merger agreement, including the first merger and second merger, OfficeMax’s board of directors considered a number of factors in its deliberations. For a more complete discussion of these factors, see “The Transactions—Recommendation of OfficeMax’s Board of Directors and Reasons for the Transactions” beginning on page 85.

Opinions of Office Depot’s Financial Advisors (see page 94)

Opinion of Peter J. Solomon Company L.P.

In connection with the proposed transactions, Office Depot’s financial advisor, Peter J. Solomon Company L.P. and Peter J. Solomon Securities Company LLC (collectively referred to in this joint proxy statement/prospectus as “PJSC”), rendered to the board of directors of Office Depot its oral opinion on February 19, 2013, subsequently confirmed in writing, that as of such date, and based upon and subject to various assumptions, considerations, qualifications and limitations set forth in its written opinion, the exchange ratio provided for in the merger agreement was fair from a financial point of view to Office Depot.

The full text of PJSC’s written opinion, dated February 19, 2013, is attached as Annex C to this joint proxy statement/prospectus. PJSC’s opinion was directed only to the fairness of the exchange ratio to Office Depot from a financial point of view, was provided to Office Depot’s board of directors in connection with its evaluation of the transactions, did not address any other aspect of the transactions and did not, and does not, constitute a recommendation to any holder of Office Depot’s capital stock as to how any such holder should vote on the transactions or act on any matter relating to the transactions.

Opinion of Morgan Stanley & Co. LLC

Office Depot also retained Morgan Stanley & Co. LLC (referred to in this joint proxy statement/prospectus as “Morgan Stanley”) to act as its financial advisor in connection with the transactions. On February 19, 2013, Morgan Stanley rendered its oral opinion to the Office Depot board of directors, subsequently confirmed in writing, that as of such date and based upon and subject to the assumptions, procedures, factors, qualifications and limitations set forth therein, the exchange ratio pursuant to the merger agreement was fair from a financial point of view to Office Depot.

The full text of the written opinion of Morgan Stanley, dated February 19, 2013, is attached as Annex D to this joint proxy statement/prospectus. The Morgan Stanley opinion is directed to Office Depot’s board of directors and addresses only the fairness, from a financial point of view, of the exchange ratio to Office Depot pursuant to the merger agreement as of the date of the opinion. The Morgan Stanley opinion does not address any other aspect of the transactions and does not constitute a recommendation as to how the stockholders of Office Depot and OfficeMax should vote at the stockholders’ meetings to be held in connection with the transactions.

Opinion of OfficeMax’s Financial Advisor (see page 114)

OfficeMax retained J.P. Morgan Securities LLC (referred to in this joint proxy statement/prospectus as “J.P. Morgan”) to act as its financial advisor in connection with the transactions. At the meeting of OfficeMax’s board of directors on February 19, 2013, J.P. Morgan rendered its oral opinion to the board of directors of OfficeMax that, as of such date and based upon and subject to the factors and assumptions set forth in its opinion, the exchange ratio in the proposed transactions was fair, from a financial point of view, to the holders of OfficeMax common stock. The oral opinion was subsequently confirmed in writing by delivery of J.P. Morgan’s written opinion dated the same date.

The full text of the written opinion of J.P. Morgan, dated February 19, 2013, which sets forth, among other things, the assumptions made, procedures followed, matters considered and limitations on the review undertaken in rendering its opinion, is attached as Annex E to this joint proxy statement/prospectus and is incorporated herein by reference. The OfficeMax stockholders are urged to read the opinion in its entirety. J.P. Morgan’s written opinion is addressed to the board of directors of OfficeMax, is directed only to the fairness from a financial point of view of the exchange ratio in the proposed transactions as of the date of the opinion and does not constitute a recommendation to any stockholder of OfficeMax as to how such stockholder should vote at the OfficeMax special meeting.

Interests of Certain Office Depot Persons in the Transactions (see page 124)

When considering the recommendation of Office Depot’s board of directors with respect to the transactions, you should be aware that Office Depot’s executive officers and directors may have interests in the transactions that are different from, or in addition to, those of Office Depot’s stockholders more generally. These interests may present such executive officers and directors with actual or potential conflicts of interest. Office Depot’s board of directors was aware of these interests during its deliberations on the merits of the transactions and in deciding to recommend that Office Depot stockholders vote for the Office Depot share issuance at the special meeting. These interests include:

For a more detailed discussion, see “The Transactions—Interests of Certain Office Depot Persons in the Transactions” beginning on page 124.

Interests of Certain OfficeMax Persons in the Transactions (see page 130)

When considering the recommendation of OfficeMax’s board of directors with respect to the transactions, you should be aware that OfficeMax’s executive officers and directors may have interests in the transactions that are different from, or in addition to, those of OfficeMax’s stockholders more generally. These interests may present such executive officers and directors with actual or potential conflicts of interest. OfficeMax’s board of directors was aware of these interests during its deliberations on the merits of the transactions and in deciding to recommend that OfficeMax stockholders vote for the adoption of the merger agreement and the approval of the first merger and the second merger at the OfficeMax special meeting. These interests include:

For a more detailed description, see “The Transactions—Interests of Certain OfficeMax Persons in the Transactions” beginning on page 130.

Board of Directors and Management of the Combined Company Following Completion of the Transactions (see page 135)

The merger agreement contains certain provisions relating to the governance of Office Depot following completion of the transactions (referred to in this joint proxy statement/prospectus as the “combined company”), which reflect the merger of equals structure of the proposed business combination. Completion of the transactions is subject to the conditions described under “—Conditions to Completion of the Transactions” beginning on page 23, including the adoption by Office Depot, effective as of the effective time of the second merger, of the amended and restated bylaws in the form included as Annex B in this joint proxy statement/prospectus (referred to in this joint proxy statement/prospectus as the “amended and restated bylaws” or the “Office Depot amended and restated bylaws”) to implement certain governance matters for a four-year period following completion of the transactions.

The board of directors of the combined company and its committees will have equal representation from both parties as of the closing. As of the closing, the then-current chief executive officers of both parties will be appointed as co-chief executive officers of the combined company, unless and until a successor has been appointed as the sole chief executive officer of the combined company (referred to in this joint proxy statement/prospectus as the “successor CEO”). A selection committee consisting of an equal number of independent directors of each party will identify successor CEO candidates. Office Depot has designated Nigel Travis, Marsha J. Evans and Thomas J. Colligan and OfficeMax has designated V. James Marino, Rakesh Gangwal and Francesca Ruiz de Luzuriaga as members of the selection committee with Messrs. Travis and Marino serving as co-chairpersons. The selection committee will also consider the then-current chief executive officers of both parties as successor CEO candidates. In addition, as of the closing, the officers for the combined company will be appointed by the newly constituted board of directors from among the officers of both parties.

The combined company’s name and headquarters location will be determined by the newly constituted board of directors, taking into consideration the recommendation of the successor CEO after his or her appointment. If such matters have not been determined prior to the completion of the transactions, the combined company will have dual headquarters in Naperville, Illinois and Boca Raton, Florida, and the businesses of each party will continue to operate under their existing names, in each case until otherwise so determined.

For a more complete description of the provisions of the merger agreement and the amended and restated bylaws related to the governance of the combined company, see “The Transactions—Board of Directors and Management of the Combined Company Following Completion of the Transactions” on page 135 and “The

Merger Agreement—Governance of the Combined Company Following Completion of the Transactions” on page 165.

Material U.S. Federal Income Tax Consequences of the Transactions (see page 136)

Each of the first merger and the LLC conversion, taken together, and the second merger and the third merger, taken together, are intended to be treated for U.S. federal income tax purposes as a “reorganization” within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended (referred to in this joint proxy statement/prospectus as the “Code”).

The obligations of Office Depot and OfficeMax to consummate the transactions are subject to the receipt by Office Depot and OfficeMax of the opinions of their respective counsel to the effect that, on the basis of the facts, representations and assumptions set forth in such opinions which are consistent with the state of facts existing as of the closing date, each of the first merger and the LLC conversion, taken together, and the second merger and the third merger, taken together, will qualify for U.S. federal income tax purposes as a “reorganization” within the meaning of Section 368(a) of the Code.

If the transactions so qualify, then a U.S. Holder of OfficeMax common stock generally will not recognize any gain or loss on the conversion of such holder’s OfficeMax common stock into New OfficeMax common stock in the first merger, and a U.S. Holder of New OfficeMax common stock who receives shares of Office Depot common stock in the second merger generally will not recognize gain or loss on the exchange of such holder’s New OfficeMax common stock for Office Depot common stock (other than gain or loss with respect to cash received in lieu of a fractional share).

The tax consequences of the transactions to each OfficeMax stockholder may depend on such holder’s particular facts and circumstances. OfficeMax stockholders are urged to consult their tax advisors to understand fully the consequences to them of the transactions in their specific circumstances. A more detailed discussion of the material U.S. federal income tax consequences of the transactions can be found in the section entitled “The Transactions—Material U.S. Federal Income Tax Consequences of the Transactions” beginning on page 136.

Accounting Treatment of the Transactions (see page 139)

Although the parties have structured the transactions as a merger of equals, accounting principles generally accepted in the United States of America, referred to in this joint proxy statement/prospectus as “GAAP,” require that one party to the transactions be identified as the acquirer. Based on a number of factors viewed as of the date of this joint proxy statement/prospectus, including the relative voting rights of former Office Depot stockholders in the combined entity anticipated to exist upon the completion of the combination, the transactions are expected to be accounted for as a business combination, with Office Depot as the accounting acquirer and OfficeMax as the accounting acquiree. The final consideration will be allocated to the net tangible and identifiable intangible assets acquired and liabilities assumed from OfficeMax based on their respective fair values as of the completion of the transactions. Any consideration above or below those fair values will be recorded as goodwill or gain, respectively.

The allocation of consideration reflected in the unaudited pro forma condensed combined financial statements included in this joint proxy statement/prospectus is based on preliminary estimates using assumptions that management believes are reasonable utilizing information currently available. The final allocation will be based in part on detailed valuation studies which have not yet been completed. Differences between preliminary estimates in the unaudited pro forma condensed combined financial statements and the final acquisition accounting will occur and could have a material impact on the combined company’s future results of operations and financial position. The final allocation is expected to be completed no later than twelve months following the closing of the transactions.

Regulatory Approvals Required to Complete the Transactions (see page 139)

OfficeMax and Office Depot have each agreed to use their reasonable best efforts to obtain all regulatory approvals required to complete the transactions and the other transactions contemplated by the merger agreement. The obligations of Office Depot and OfficeMax to consummate the transactions are subject to, among other matters, termination or earlier expiration of any waiting period applicable to the transactions and the other transactions contemplated by the merger agreement and receipt of any approvals, consents or clearances required in connection with the transactions and the other transactions contemplated by the merger agreement, in each case, under the U.S. Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (referred to in this joint proxy statement/prospectus as the “HSR Act”), the Mexican Federal Law on Economic Competition (referred to in this joint proxy statement/prospectus as the “FLEC”) and the Competition Act (Canada) (referred to in this joint proxy statement/prospectus as the “CAC”).

On March 7, 2013, Office Depot and OfficeMax filed Notification and Report Forms with the Antitrust Division of the U.S. Department of Justice (referred to in this joint proxy statement/prospectus as the “Antitrust Division”) and the Federal Trade Commission (referred to in this joint proxy statement/prospectus as the “FTC”). On April 8, 2013, the parties received a Request for Additional Information and Documentary Materials (referred to in this joint proxy statement/prospectus as a “second request”) from the FTC regarding the proposed transactions. On May 29, 2013, Office Depot and OfficeMax agreed with the FTC not to consummate the transactions until at least 45 days after each party has substantially complied with the second request, unless that period is terminated sooner by the FTC or is extended voluntarily by agreement of the parties. The parties will work to promptly respond to the second request and continue to work cooperatively with the FTC in connection with this review.

On April 12, 2013, Office Depot and OfficeMax filed their respective notices and an application for an advance ruling certificate pursuant to section 102 of the CAC or, in the alternative, a no-action letter with the Commissioner of Competition under the CAC in respect of the transactions. On May 6, 2013, the Commissioner of Competition issued a no-action letter in respect of the transactions stating that, as at such date, the Commissioner of Competition does not intend to challenge the transactions by making an application to the Competition Tribunal under section 92 of the CAC. The no-action letter acknowledges that, pursuant to section 97 of the CAC, the Commissioner of Competition reserves the right to challenge the transactions up to one year after they have been completed.

The parties intend to notify the Mexican Federal Competition Commission (referred to in this joint proxy statement/prospectus as the “MFCC”) under the FLEC as soon as reasonably practicable.

See also the sections entitled “The Transactions—Regulatory Approvals” beginning on page 139 and “The Merger Agreement—Efforts to Complete the Transactions” beginning on page 156.

Treatment of OfficeMax Stock Options and OfficeMax Stock-Based Awards (see page 142)

In connection with the first merger, each of OfficeMax and New OfficeMax will take all actions as may be necessary so that at the effective time of the first merger, each OfficeMax stock option and each other OfficeMax stock-based award will, automatically and without any action on behalf of the holder thereof, be converted into a stock option or award, as the case may be, denominated in, or measured in whole or in part by the value of, shares of capital stock of New OfficeMax.

In connection with the second merger, each outstanding New OfficeMax stock option will be converted into an option to purchase, on the same terms and conditions as the New OfficeMax stock option, a number of shares of Office Depot common stock that is equal to the number of shares of New OfficeMax common stock subject to the New OfficeMax stock option multiplied by the exchange ratio, at an exercise price per share of Office Depot

common stock equal to the exercise price per share of New OfficeMax common stock subject to the New OfficeMax stock option divided by the exchange ratio. Each other New OfficeMax stock-based award will be converted as a result of the second merger into an award, on the same terms and conditions as the New OfficeMax stock-based award, with respect to a number of shares of Office Depot common stock that is equal to the number of shares of New OfficeMax common stock underlying such New OfficeMax stock-based award multiplied by the exchange ratio, except that any then outstanding New OfficeMax stock-based awards that vest based on the attainment of performance goals with a performance period that has not completed prior to the closing will be converted into time-based awards that will vest at target levels at the originally scheduled vesting date, subject to any accelerated vesting upon a qualifying termination of employment in accordance with the terms of the 2003 OfficeMax Incentive and Performance Plan. Prior to the effective time of the second merger, OfficeMax, Office Depot and their respective boards of directors and compensation committees, as applicable, will take all actions necessary to effectuate the conversion of New OfficeMax stock options and other stock-based awards as described in this paragraph.

Treatment of OfficeMax Series D Preferred Stock (see page 143)

Prior to the closing of the transactions, OfficeMax will redeem each issued and outstanding share of its Convertible Preferred Stock, Series D (referred to in this joint proxy statement/prospectus as the “OfficeMax Series D preferred stock”) for shares of OfficeMax common stock in accordance with the terms governing the OfficeMax Series D preferred stock. The shares of OfficeMax common stock issued upon such redemption will then be converted at the effective time of the second merger into the right to receive shares of Office Depot common stock based on the exchange ratio, together with cash in lieu of fractional shares, if any, and unpaid dividends and distributions, if any, pursuant to the merger agreement.

Treatment of Office Depot Convertible Preferred Stock; Agreements with BC Partners (see page 143)

Under the voting agreement described above under “Office Depot Special Meeting,” Office Depot, OfficeMax and BC Partners agreed that, effective as of immediately following the receipt of (i) the requisite Office Depot stockholder approval in connection with the transactions and (ii) the consent of the lenders under Office Depot’s Amended and Restated Credit Agreement, dated May 25, 2011 (referred to in this joint proxy statement/prospectus as the “amended credit agreement”), 175,000 shares of the Office Depot convertible preferred stock held by BC Partners will be redeemed for cash by Office Depot at the redemption price applicable to the Office Depot convertible preferred stock. In addition, upon satisfaction or waiver of the closing conditions under the merger agreement and following receipt by Office Depot of the consent of the lenders under the amended credit agreement, all remaining shares of the Office Depot convertible preferred stock then held by BC Partners will, effective as of immediately prior to completion of the transactions, be redeemed for cash by Office Depot at the redemption price applicable to the Office Depot convertible preferred stock. As of December 29, 2012, the applicable redemption price for all of the shares of Office Depot convertible preferred stock would have been approximately $435 million.

In addition, BC Partners may not, at any time following receipt of the requisite Office Depot stockholder approval in connection with the transactions and prior to the redemption of the Office Depot convertible preferred stock, convert their Office Depot convertible preferred stock into Office Depot common stock if such conversion would result in the ownership by BC Partners of 5% or more of the undiluted Office Depot common stock expected to be outstanding immediately following completion of the transactions (referred to in this joint proxy statement/prospectus as the “ownership cap”), unless BC Partners have a good faith intention to sell an amount of Office Depot common stock such that their aggregate ownership of Office Depot common stock immediately following completion of the transactions will be less than the ownership cap (such amount of Office Depot common stock equal to, or in excess of, the ownership cap, being referred to in this joint proxy statement/prospectus as the “excess amount”) and have entered into sale agreements or made other arrangements with

respect to such sale. If BC Partners are not able to sell the excess amount prior to completion of the transactions, Office Depot will, upon receipt of the required lender consent under the amended credit agreement, repurchase from BC Partners, and BC Partners will be required to sell to Office Depot, at a price per share of Office Depot common stock reported at the close of the NYSE on the trading date immediately prior to the date of completion of the transactions, a number of shares of Office Depot common stock equal to the excess amount.

The obligations of OfficeMax to consummate the transactions are subject to the completion of the transactions contemplated by the voting agreement. As a result, if the Office Depot convertible preferred stock is not redeemed or any excess amount of Office Depot common stock is not repurchased as provided for in the voting agreement, the transactions may not be completed.

On March 4, 2013, Office Depot entered into the Second Amendment (referred to in this joint proxy statement/prospectus as the “second amendment”) to the amended credit agreement with the lenders party to the amended credit agreement. The second amendment provides Office Depot the ability to make payments to BC Partners to redeem all of the Office Depot convertible preferred stock and to repurchase certain amounts of Office Depot common stock held by BC Partners, in each case as required by the voting agreement.

In connection with the voting agreement, Office Depot and BC Partners also entered into a termination agreement (referred to in this joint proxy statement/prospectus as the “termination agreement”), pursuant to which the Investor Rights Agreement, dated June 23, 2009, between Office Depot and BC Partners and the related management rights letter will automatically terminate effective as of the completion of the transactions.

Listing of Office Depot Common Stock; Delisting of OfficeMax Common Stock (see page 145)

It is a condition to the consummation of the transactions that the shares of Office Depot common stock to be issued to OfficeMax stockholders in the second merger be authorized for listing on the NYSE, subject to official notice of issuance. As a result of the transactions, shares of OfficeMax common stock currently listed on the NYSE will cease to be listed on the NYSE.

Appraisal Rights (see page 145)

Under Delaware law, holders of OfficeMax stock are not entitled to appraisal rights in connection with the first merger or the second merger. Because Office Depot is not a constituent corporation to any of the first merger, the second merger or the third merger, and Office Depot stockholders will continue to hold their shares of Office Depot common stock, Office Depot stockholders will not be entitled to appraisal rights in connection with the transactions.

Litigation Related to the Transactions (see page 145)

In connection with the transactions, purported stockholders of OfficeMax have filed putative stockholder class action lawsuits against OfficeMax, Office Depot and the OfficeMax board of directors, among others. The lawsuits generally allege, among other things, that the directors of OfficeMax breached their fiduciary duties to OfficeMax stockholders in connection with the transactions. The lawsuits further allege that OfficeMax and Office Depot, among others, aided and abetted the OfficeMax directors in the breach of their fiduciary duties. The lawsuits seek injunctive relief enjoining the transactions, damages and costs, among other remedies.

OfficeMax, Office Depot and the OfficeMax board of directors believe that these lawsuits are without merit and intend to defend against them vigorously.

No Solicitation of Acquisition Proposals (see page 151)

In the merger agreement, Office Depot and OfficeMax agreed not to solicit proposals relating to certain alternative transactions or, except as described below, engage in discussions or negotiations with respect to, or provide nonpublic information to any person in connection with, any proposal for an alternative transaction. If Office Depot or OfficeMax, as the case may be, receives a written unsolicited bona fide proposal relating to an alternative transaction that its respective board of directors has determined in good faith (after consultation with its outside legal counsel and financial advisors) constitutes a superior proposal or could reasonably be expected to result in a superior proposal, then Office Depot or OfficeMax, as applicable, may, subject to certain conditions, furnish nonpublic information to the third party making the proposal for an alternative transaction and engage in discussions or negotiations with the third party with respect to the proposal for an alternative transaction.

Conditions to Completion of the Transactions (see page 148)

The obligations of Office Depot and OfficeMax to consummate the transactions are subject to the satisfaction of the following conditions:

In addition, each of Office Depot’s and OfficeMax’s obligations to consummate the transactions are subject to the satisfaction or waiver of the following additional conditions:

In addition, the obligations of OfficeMax to consummate the transactions are also subject to the satisfaction or waiver of the following additional conditions:

Termination of the Merger Agreement (see page 158)

The merger agreement may be terminated and the transactions may be abandoned at any time prior to the closing date under the following circumstances:

Expenses and Termination Fee Relating to the Transactions (see page 160)

Generally, all costs and expenses incurred in connection with the merger agreement and the transactions contemplated by the merger agreement will be paid by the party incurring those expenses, subject to the

exceptions described under “The Merger Agreement—Expenses and Termination Fee” on page 160. In addition, if it is judicially determined that the termination of the merger agreement was caused by a willful or intentional breach of the merger agreement, then, in addition to other remedies for a willful or intentional breach of the merger agreement, the breaching party will indemnify and hold harmless the other parties to the merger agreement for their respective reasonable out-of-pocket costs, fees and expenses as well as fees and expenses incident to negotiation, preparation and execution of the merger agreement and related documentation and stockholders’ meetings and consents, except that, upon payment of the full termination fee, the breaching party will no longer be required to so indemnify or hold harmless the other parties.

Upon termination of the merger agreement, Office Depot or OfficeMax, as the case may be, will under certain circumstances be required to pay the other party or its designee a termination fee of $30 million in cash (referred to in this joint proxy statement/prospectus as the “termination fee”). See “The Merger Agreement—Expenses and Termination Fee” on page 160 for a more complete description of the circumstances under which Office Depot or OfficeMax may be required to pay the other party the termination fee.

Comparison of Rights of Common Stockholders of Office Depot and OfficeMax (see page 195)

OfficeMax stockholders receiving shares of Office Depot common stock in the second merger will have different rights once they become stockholders of the combined company due to differences between the governing corporate documents of OfficeMax and the proposed governing corporate documents of the combined company. These differences are described in more detail under “Comparison of Rights of Common Stockholders of Office Depot and OfficeMax” beginning on page 195.

SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA

Selected Historical Consolidated Financial Data of Office Depot

The following selected historical consolidated financial data of Office Depot for each of the years during the three-year period ended December 29, 2012 and the selected historical consolidated balance sheet data as of December 29, 2012 and December 31, 2011 have been derived from Office Depot’s audited consolidated financial statements as of and for the fiscal year ended December 29, 2012 contained in its Current Report on Form 8-K filed with the SEC on April 30, 2013, which is incorporated by reference into this joint proxy statement/prospectus. The selected historical consolidated financial data for each of the years ended December 26, 2009 and December 27, 2008 and the selected balance sheet data as of December 25, 2010, December 26, 2009 and December 27, 2008 have been derived from Office Depot’s audited consolidated financial statements as of and for such years contained in Office Depot’s other reports filed with the SEC, which are not incorporated by reference into this joint proxy statement/prospectus.

The selected historical financial information for each of the three-month periods ended March 30, 2013 and March 31, 2012, and the balance sheet data as of March 30, 2013 have been derived from Office Depot’s unaudited consolidated financial statements as of and for the quarterly period ended March 30, 2013 contained in Office Depot’s Quarterly Report on Form 10-Q for the quarterly period ended March 30, 2013 filed with the SEC on April 30, 2013, which is incorporated by reference into this joint proxy statement/prospectus. The balance sheet data as of March 31, 2012 have been derived from Office Depot’s unaudited consolidated financial statements for the quarterly period ended March 31, 2012 contained in Office Depot’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2012 filed with the SEC on May 1, 2012, which is not incorporated by reference into this joint proxy statement/prospectus. In Office Depot’s view, the unaudited financial statements include all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the interim March 30, 2013 financial information. Interim results for the three months ended and as of March 30, 2013 are not necessarily indicative of, and are not projections for, the results to be expected for the fiscal year ending December 28, 2013.

The information set forth below is only a summary and is not necessarily indicative of the results of future operations of Office Depot or the combined company following completion of the transactions, and you should read the following information together with Office Depot’s consolidated financial statements, the related notes and the sections entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Office Depot’s Current Report on Form 8-K filed with the SEC on April 30, 2013 and in its Quarterly Report on Form 10-Q for the quarterly period ended March 30, 2013, which are incorporated by reference into this joint proxy statement/prospectus, and in Office Depot’s other reports filed with the SEC. For more information, see the section entitled “Where You Can Find More Information” beginning on page 221.

Selected Historical Consolidated Financial Data of OfficeMax

The following selected historical consolidated financial data of OfficeMax for each of the years during the three-year period ended December 29, 2012 and the selected historical consolidated balance sheet data as of December 29, 2012 and December 31, 2011 have been derived from OfficeMax’s audited consolidated financial statements as of and for the fiscal year ended December 29, 2012 contained in its Annual Report on Form 10-K for the year ended December 29, 2012 filed with the SEC on February 25, 2013, which is incorporated by reference into this joint proxy statement/prospectus. The selected historical consolidated financial data for each of the years ended December 26, 2009 and December 27, 2008 and the selected balance sheet data as of December 25, 2010, December 26, 2009 and December 27, 2008 have been derived from OfficeMax’s audited consolidated financial statements as of and for such years contained in OfficeMax’s other reports filed with the SEC, which are not incorporated by reference into this joint proxy statement/prospectus.

The selected historical financial information for the three-month period ended March 30, 2013 and the balance sheet data as of March 30, 2013 have been derived from OfficeMax’s unaudited consolidated financial statements as of and for the quarterly period ended March 30, 2013 contained in OfficeMax’s Quarterly Report on Form 10-Q for the quarterly period ended March 30, 2013 filed with the SEC on May 8, 2013, which is incorporated by reference into this joint proxy statement/prospectus. The selected historical financial information for the three-month period ended March 31, 2012 and the balance sheet data as of March 31, 2012 have been derived from OfficeMax’s unaudited consolidated financial statements for the quarterly period ended March 31, 2012 contained in OfficeMax’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2012 filed with the SEC on May 8, 2012, which is not incorporated by reference into this joint proxy statement/prospectus. In OfficeMax’s view, the unaudited financial statements include all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the interim March 30, 2013 financial information. Interim results for the three months ended and as of March 30, 2013 are not necessarily indicative of, and are not projections for, the results to be expected for the fiscal year ending December 28, 2013.

The information set forth below is only a summary and is not necessarily indicative of the results of future operations of OfficeMax or the combined company following completion of the transactions, and you should read the following information together with OfficeMax’s consolidated financial statements, the related notes and the sections entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in OfficeMax’s Annual Report on Form 10-K for the year ended December 29, 2012 and in its Quarterly Report on Form 10-Q for the quarterly period ended March 30, 2013, which are incorporated by reference into this joint proxy statement/prospectus, and in OfficeMax’s other reports filed with the SEC. For more information, see the section entitled “Where You Can Find More Information” beginning on page 221.