Table of Contents

As filed with the Securities and Exchange Commission on February 6, 2015

Registration No. 333-            

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

MARCUS & MILLICHAP, INC.

(Exact name of registrant as specified in its charter)

23975 Park Sorrento, Suite 400

Calabasas, California 91302

(818) 212-2250

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

John J. Kerin

President and Chief Executive Officer

Marcus & Millichap, Inc.

23975 Park Sorrento, Suite 400, Calabasas, California 91302

(818) 212-2250

(Name, address, including zip code, and telephone number, including area code, of agent for service)

COPIES TO:

Brett Cooper

Orrick, Herrington & Sutcliffe LLP

The Orrick Building

405 Howard Street, San Francisco, California 94105

(415) 773-5700

Approximate date of commencement of proposed sale to the public: From time to time after the effective date of this registration statement.

If the only securities being registered on this Form are to be offered pursuant to dividend or interest reinvestment plans, please check the following box.  ¨

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, as amended other than securities offered only in connection with dividend or interest reinvestment plans, check the following box.  x

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨

If this Form is a registration statement pursuant to General Instruction I.D. or a post–effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box.  ¨

If this Form is a post–effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.  ¨

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.

CALCULATION OF REGISTRATION FEE

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until this registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

Table of Contents

The information in this prospectus is not complete and may be changed. The selling stockholders may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED FEBRUARY 6, 2015

PROSPECTUS

4,600,000 Shares

Common Stock

Phoenix Investments Holdings LLC (“Phoenix Investments”) and George M. Marcus, our Co-Chairman (together with Phoenix Investments, the “selling stockholders”) may offer and sell up to 4,600,000 shares of our common stock from time to time, in amounts, at prices and on terms that will be determined at the time these shares of common stock are offered. We are not selling any shares of common stock under this prospectus and will not receive any proceeds from the sale of shares by the selling stockholders.

We will provide more specific terms regarding any offering of the shares of common stock in supplements to this prospectus or in one or more documents incorporated by reference into this prospectus. The prospectus supplements and documents incorporated by reference into this prospectus may also add, update or change information contained in this prospectus. You should read this prospectus, including any documents incorporated by reference into this prospectus, and the applicable prospectus supplement carefully before you invest.

The selling stockholders may sell all or a portion of the shares directly to purchasers or through underwriters, brokers-dealers or agents, who may receive compensation in the form of discounts, concessions or commissions. These sales may occur at fixed prices, at market prices prevailing at the time of sale, at prices related to prevailing market price, at varying prices determined at the time of sale or at negotiated prices. See the section titled “Plan of Distribution” in this prospectus for a more complete description of the ways in which the shares may be sold.

Our common stock is listed on the New York Stock Exchange (the “NYSE”) under the symbol “MMI.” On February 5, 2015, the last reported sale price of our common stock on the NYSE was $36.66 per share.

Investing in our common stock involves risks. You should carefully consider the risk factors set forth in the applicable supplement to this prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus or any prospectus supplement before investing in any common stock that may be offered. See “Risk Factors” on page 1.

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or the accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is             , 2015

Table of Contents

TABLE OF CONTENTS

You should rely only on the information contained or incorporated by reference in this prospectus and any applicable prospectus supplement. Neither we nor the selling stockholders have authorized any other person to provide you with different or additional information. If anyone provides you with different or additional information, you should not rely on it. You should assume that the information contained or incorporated by reference in this prospectus is accurate as of the date on the front cover of this prospectus or the date of the document incorporated by reference. Our business, financial condition, results of operations and prospects may have changed since then. The selling stockholders are not making an offer to sell the securities offered by this prospectus in any jurisdiction where the offer or sale is not permitted.

i

Table of Contents

MARCUS & MILLICHAP, INC.

Marcus & Millichap is a leading national brokerage firm specializing in commercial real estate investment sales, financing, research and advisory services. We have been the top broker in the United States based on the number of investment transactions over the last 10 years. As of December 31, 2014, we had nearly 1,500 investment sales and financing professionals in 78 offices that provide investment brokerage and financing services to sellers and buyers of commercial real estate. We also offer market research, consulting and advisory services to developers, lenders, owners and investors.

We were formed as a sole proprietorship in 1971, incorporated in California on August 26, 1976 as G. M. Marcus & Company, and we were renamed as Marcus & Millichap, Inc. in August 1978, Marcus & Millichap Real Estate Investment Brokerage Company in September 1985, and Marcus & Millichap Real Estate Investment Services, Inc. (“MMREIS”) in February 2007. Prior to the completion of our initial public offering (“IPO”), MMREIS was majority-owned by Marcus & Millichap Company (“MMC”) and all of MMREIS’ preferred and common stock outstanding was held by MMC and its affiliates or officers and employees of MMREIS. In June 2013, in preparation for the spin-off of its real estate investment services business (the “Spin-Off”), MMC formed a holding company called Marcus & Millichap, Inc. in Delaware. Prior to the completion of our IPO, the shareholders of MMREIS contributed the shares of MMREIS to Marcus & Millichap, Inc. in exchange for common stock of Marcus & Millichap, Inc., and MMREIS became a wholly owned subsidiary of Marcus & Millichap, Inc.

Our principal executive offices are located at 23975 Park Sorrento, Suite 400, Calabasas, California 91302. Our telephone number at this location is (818) 212-2250. Our website address is www.marcusmillichap.com. The information on our website is not part of, and is not incorporated into, this prospectus or any prospectus supplement.

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement on Form S-3 that we filed with the SEC using a shelf registration process. Under this shelf registration process, the selling stockholders may, from time to time, offer and sell up to 4,600,000 shares of our common stock in one or more offerings or resales. This prospectus provides you with a general description of the shares of our common stock such stockholders may sell. Each time the selling stockholders sell shares under this prospectus, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may also add, update or change information contained in or incorporated by reference into this prospectus. If so, the information in the prospectus supplement should be read as superseding the information in this prospectus. Additionally, information that we file later with the SEC will automatically update and supersede this information. You should carefully read this prospectus, the applicable prospectus supplement, and the additional information described below under the headings “Where You Can Find More Information” and “Certain Documents Incorporated By Reference.”

In this prospectus we use the terms “Marcus & Millichap,” “we,” “us,” “our,” and “our company” and similar phrases to refer to Marcus & Millichap, Inc., a Delaware corporation, and its consolidated subsidiaries, unless otherwise specified.

RISK FACTORS

Investing in the common stock to be offered pursuant to this prospectus may involve a high degree of risk. These risks will be set forth in a prospectus supplement relating to the common stock to be offered by that prospectus supplement. You should carefully consider the important factors set forth under the heading “Risk Factors” in the applicable supplement to this prospectus before investing in any common stock that may be offered.

1

Table of Contents

FORWARD-LOOKING STATEMENTS

This prospectus includes forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends affecting the financial condition of our business. Forward-looking statements should not be read as a guarantee of future performance or results, and will not necessarily be accurate indications of the times at, or by, which such performance or results will be achieved. Forward-looking statements are based on information available at the time those statements are made and/or management’s good faith belief as of that time with respect to future events, and are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in or suggested by the forward-looking statements. Important factors that could cause such differences include, but are not limited to:

In addition, in this prospectus, the words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “predict,” “potential” and similar expressions, as they relate to our company, our business and our management, are intended to identify forward-looking statements. In light of these risks and uncertainties, the forward-looking events and circumstances discussed in this prospectus may not occur and actual results could differ materially from those anticipated or implied in the forward-looking statements.

Forward-looking statements speak only as of the date of this prospectus. You should not put undue reliance on any forward-looking statements. We assume no obligation to update forward-looking statements to reflect actual results, changes in assumptions or changes in other factors affecting forward-looking information, except to the extent required by applicable laws. If we update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect to those or other forward-looking statements.

2

Table of Contents

USE OF PROCEEDS

This prospectus relates to shares of our common stock that may be offered and sold from time to time by the selling stockholders. We will receive no proceeds from the sale of common stock by the selling stockholders. The selling stockholders will pay all third party expenses relating to any offering.

3

Table of Contents

DESCRIPTION OF CAPITAL STOCK

As of the date of this prospectus, our authorized capital stock consists of 175,000,000 shares, of which 150,000,000 shares, par value $0.0001 per share, are designated as common stock, and 25,000,000 shares, par value $0.0001 per share, are designated as preferred stock. As of December 31, 2014, there were 36,918,442 shares of common stock outstanding, and there were approximately 21 holders of record of our common stock. No shares of preferred stock are currently outstanding.

The following description of our capital stock does not purport to be complete and is subject to and is qualified in its entirety by the description of our capital stock contained in our amended and restated certificate of incorporation, a copy of which is filed as an exhibit to the registration statement of which this prospectus is a part. Reference is made to such exhibit for a detailed description of the provisions thereof summarized below.

Common Stock

The holders of our common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders. Subject to preferences that may be applicable to any then outstanding preferred stock, holders of common stock are entitled to receive ratably such dividends, if any, as may be declared by the board of directors out of funds legally available for that purpose. In the event of liquidation, dissolution or winding up of the company, the holders of common stock will be entitled to share ratably in the net assets legally available for distribution to stockholders after the payment of all of our debts and other liabilities of our company, subject to the prior distribution rights of any preferred stock then outstanding. Holders of common stock have no preemptive or conversion rights or other subscription rights. All outstanding shares of common stock, including the shares of common stock to be issued pursuant to this prospectus, are fully paid and non-assessable.

Certain Effects of Authorized but Unissued Stock

We have shares of common stock and preferred stock available for future issuance without stockholder approval. These additional shares may be used for a variety of corporate purposes, including future public offerings to raise additional capital, to facilitate corporate acquisitions or to pay as a dividend on the capital stock.

The existence of unissued and unreserved common stock and preferred stock may enable our board of directors to issue shares to persons friendly to current management or to issue preferred stock with terms that could render more difficult or discourage an attempt to obtain control of us by means of a merger, tender offer, proxy contest or otherwise, thereby protecting the continuity of our management. In addition, the issuance of preferred stock could adversely affect the voting power of holders of common stock and the likelihood that such holders would receive dividend payments and payments upon liquidation.

Anti-Takeover Effects of Delaware Law and Our Certificate of Incorporation and Bylaws

Our amended and restated certificate of incorporation and our amended and restated bylaws contain certain provisions that could have the effect of delaying, deterring or preventing another party from acquiring control of us. These provisions and certain provisions of the General Corporation Law of the State of Delaware (the “DGCL”), which are summarized below, are expected to discourage coercive takeover practices and inadequate takeover bids. These provisions are also designed, in part, to encourage persons seeking to acquire control of us to negotiate first with our board of directors. We believe that the benefits of increased protection of our potential ability to negotiate more favorable terms with an unfriendly or unsolicited acquirer outweigh the disadvantages of discouraging a proposal to acquire us.

4

Table of Contents

Undesignated Preferred Stock

Our board of directors has the ability to issue preferred stock with voting or other rights or preferences that could impede the success of any attempt to change control of us. These and other provisions may have the effect of deterring hostile takeovers or delaying changes in control or management of our company.

Limits on Ability of Stockholders to Act by Written Consent or Call a Special Meeting

Our amended and restated certificate of incorporation provides that our stockholders may not act by written consent, which may lengthen the amount of time required to take stockholder actions. As a result, a holder controlling a majority of our capital stock would not be able to amend our bylaws or remove directors without holding a meeting of our stockholders called in accordance with our bylaws.

In addition, our amended and restated bylaws provide that special meetings of the stockholders may be called only by the chairperson of the board, the Chief Executive Officer or our board of directors. Stockholders may not call a special meeting, which may delay the ability of our stockholders to force consideration of a proposal or for holders controlling a majority of our capital stock to take any action, including the removal of directors.

Requirements for Advance Notification of Stockholder Nominations and Proposals

Our amended and restated bylaws establish advance notice procedures with respect to stockholder proposals and the nomination of candidates for election as directors, other than nominations made by or at the direction of our board of directors or a committee of our board of directors. These provisions may have the effect of precluding the conduct of certain business at a meeting if the proper procedures are not followed. These provisions may also discourage or deter a potential acquirer from conducting a solicitation of proxies to elect the acquirer’s own slate of directors or otherwise attempting to obtain control of our company.

Board Classification

Our board of directors is divided into three classes, one class of which is elected each year by our stockholders. The directors in each class serve three-year terms. A third party may be discouraged from making a tender offer or otherwise attempting to obtain control of us as it is it more difficult and time-consuming for stockholders to replace a majority of the directors on a classified board.

No Cumulative Voting

Our amended and restated certificate of incorporation and amended and restated bylaws do not permit cumulative voting in the election of directors. Cumulative voting allows a stockholder to vote a portion or all of its shares for one or more candidates for seats on the board of directors. Without cumulative voting, a minority stockholder may not be able to gain as many seats on our board of directors as the stockholder would be able to gain if cumulative voting were permitted. The absence of cumulative voting makes it more difficult for a minority stockholder to gain a seat on our board of directors to influence our board’s decision regarding a takeover.

Amendment of Charter and Bylaws Provisions

The amendment of the above provisions of our amended and restated certificate of incorporation requires the approval by holders of at least two thirds of our outstanding capital stock entitled to vote generally in the election of directors. The amendment of our bylaws requires approval by the holders of at least two thirds of our outstanding capital stock entitled to vote generally in the election of directors.

5

Table of Contents

Delaware Anti-Takeover Statute

We are subject to Section 203 of the DGCL regulating corporate takeovers. In general, Section 203 prohibits a publicly held Delaware corporation from engaging, under certain circumstances, in a business combination with an interested stockholder for a period of three years following the date the person became an interested stockholder unless:

Generally, a business combination includes a merger, asset or stock sale, or other transaction resulting in a financial benefit to the interested stockholder. An interested stockholder is a person who, together with affiliates and associates, owns or, within three years prior to the determination of interested stockholder status, did own 15% or more of a corporation’s outstanding voting stock. We expect the existence of this provision to have an anti-takeover effect with respect to transactions our board of directors does not approve in advance. We anticipate that Section 203 may also discourage attempts that might result in a premium over the market price for the shares of common stock held by stockholders.

The provisions of the DGCL and the provisions of our amended and restated certificate of incorporation and amended and restated bylaws could have the effect of discouraging others from attempting hostile takeovers and, as a consequence, they might also inhibit temporary fluctuations in the market price of our common stock that often result from actual or rumored hostile takeover attempts. These provisions might also have the effect of preventing changes in our management. It is possible that these provisions could make it more difficult to accomplish transactions that stockholders might otherwise deem to be in their best interests.

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is American Stock Transfer & Trust Company, LLC, 6201 15^th Avenue, Brooklyn, NY 11219. Its phone number is (800) 937-5449.

Listing

Our common stock is listed on the New York Stock Exchange under the symbol “MMI.”

SELLING STOCKHOLDERS

This prospectus relates to the resale or other disposition by Phoenix Investments and George M. Marcus of up to 4,600,000 shares of our common stock. In connection with our IPO in 2013, MMC contributed its shares of MMREIS to Marcus & Millichap in exchange for common stock of Marcus & Millichap, and MMREIS became a wholly owned subsidiary of Marcus & Millichap. MMC subsequently distributed its shares in Marcus & Millichap to its shareholders, including Mr. Marcus, who then contributed those shares to Phoenix Investments. In February 2015, Phoenix Investments made a pro rata distribution to its members of a portion of its shares of Marcus & Millichap, pursuant to which Mr. Marcus received 800,000 shares of Marcus & Millichap being registered hereunder.

6

Table of Contents

Information about the selling stockholders, where applicable, including the amount of shares of common stock owned by each selling stockholder prior to the offering, the number of shares of our common stock to be offered by each selling stockholder and the amount of common stock to be owned by each selling stockholder after completion of the offering, will be set forth in an applicable prospectus supplement, documents incorporated by reference or in a free writing prospectus we file with the SEC. The applicable prospectus supplement will also disclose whether any of the selling stockholders has held any position or office with, has been employed by or otherwise has had a material relationship with us during the three years prior to the date of the prospectus supplement.

The selling stockholders may transfer the shares of common stock in other circumstances, including, but not limited to, transfers by Mr. Marcus to his family charitable foundation, The Marcus Family Foundation, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus and may sell the shares from time to time under this prospectus after we have filed an update to this prospectus under Rule 424(b) or other applicable provision of the Securities Act of 1933, as amended (the “Securities Act”) amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus. The selling stockholders also may transfer and donate the shares in other circumstances in which case the transferees, donees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus.

7

Table of Contents

PLAN OF DISTRIBUTION

The selling stockholders, including any transferees, donees, pledgees, assignees and successors-in-interest, may, from time to time, sell, transfer or otherwise dispose of the shares:

We will describe in a prospectus supplement, the particular terms of the offering of the shares, including the following:

If the selling stockholders use underwriters in the sale, such underwriters will acquire the shares for their own account. The underwriters may resell the shares in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale.

The shares may be either offered to the public through underwriting syndicates represented by managing underwriters or by underwriters without a syndicate. The obligations of the underwriters to purchase the shares will be subject to certain conditions. The underwriters will be obligated to purchase all the shares of the series offered if any of the shares are purchased. The underwriters may change from time to time the offering price and any discounts or concessions allowed or reallowed or paid to dealers.

The selling stockholders may sell offered shares through agents designated by the selling stockholders. Any agent involved in the offer or sale of the shares for which this prospectus is delivered will be named, and any commissions payable by the selling stockholders to that agent will be set forth, in the prospectus supplement. Unless indicated in the prospectus supplement, the agents have agreed to use their reasonable best efforts to solicit purchases for the period of their appointment.

The selling stockholders also may sell offered shares directly. In this case, no underwriters or agents would be involved.

Underwriters, dealers and agents that participate in the distribution of the offered shares may be underwriters as defined in the Securities Act, and any discounts or commissions received by them from the selling stockholders and any profit on the resale of the offered shares by them may be treated as underwriting discounts and commissions under the Securities Act. We will identify any underwriters or agents, and describe their compensation, in a prospectus supplement.

Certain of any such underwriters and agents, including their associates, may be customers of, engage in transactions with and perform services for us and our subsidiaries in the ordinary course of business. One or more of our affiliates may from time to time act as an agent or underwriter in connection with the sale of the shares to the extent permitted by applicable law. The participation of any such affiliate in the offer and sale of the shares will comply with Rule 5110(h) of the Corporate Financing Rule of the Financial Industry Regulatory Authority regarding the offer and sale of securities of an affiliate.

8

Table of Contents

The selling stockholders may have agreements with the underwriters, dealers and agents to indemnify them against certain civil liabilities, including liabilities under the Securities Act, or to contribute with respect to payments which the underwriters, dealers or agents may be required to make. Underwriters, dealers and agents may engage in transactions with, or perform services for, us or our subsidiaries in the ordinary course of their businesses.

The selling stockholders may authorize agents or underwriters to solicit offers by certain types of institutions to purchase shares from them at the public offering price set forth in the prospectus supplement pursuant to delayed delivery contracts. These contracts will provide for payment and delivery on a specified date in the future. The conditions to these contracts and the commissions payable for solicitation of such contracts will be set forth in the applicable prospectus supplement.

In order to facilitate the offering of the shares, any underwriters or agents, as the case may be, involved in the offering of such shares may engage in transactions that stabilize, maintain or otherwise affect the price of such shares or any other securities the prices of which may be used to determine payments on such securities. Specifically, the underwriters or agents, as the case may be, may overallot in connection with the offering, creating a short position in such securities for their own account. In addition, to cover overallotments or to stabilize the price of such securities or any such other securities, the underwriters or agents, as the case may be, may bid for, and purchase, such securities or any such other securities in the open market. Finally, in any offering of such securities through a syndicate of underwriters, the underwriting syndicate may reclaim selling concessions allotted to an underwriter or a dealer for distributing such securities in the offering if the syndicate repurchases previously distributed securities in transactions to cover syndicate short positions, in stabilization transaction or otherwise. Any of these activities may stabilize or maintain the market price of the securities above independent market levels. The underwriters or agents, as the case may be, are not required to engage in these activities, and may end any of these activities at any time.

The selling stockholders also may transfer the shares of common stock in other circumstances, including, but not limited to, transfers by George M. Marcus to his family charitable foundation, The Marcus Family Foundation, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus and may sell the shares from time to time under this prospectus after we have filed an update to this prospectus under Rule 424(b) or other applicable provisions of the Securities Act amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this prospectus. The selling stockholders also may transfer and donate the shares in other circumstances in which case the transferees, donees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this prospectus.

9

Table of Contents

VALIDITY OF THE SECURITIES

The validity of the shares of common stock offered hereunder will be passed upon for the selling stockholders by Orrick, Herrington & Sutcliffe LLP, San Francisco, California.

EXPERTS

The consolidated financial statements of Marcus & Millichap, Inc. and Subsidiaries appearing in Marcus & Millichap, Inc.’s Annual Report (Form 10-K) for the year ended December 31, 2013 have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their report thereon, included therein, and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such report given on the authority of such firm as experts in accounting and auditing.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. You can also inspect, read, and copy these reports, proxy statements and other information at the public reference facilities the SEC maintains at:

The Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

You can also obtain copies of these materials from the public reference facilities of the SEC at prescribed rates. You can obtain information on the operation of the public reference facilities by calling the SEC at 1-800-SEC-0330. Our SEC filings are also available over the Internet at the SEC’s website at http://www.sec.gov, which contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC.

You may also obtain information about us at our Internet website at http://www.marcusmillichap.com. However, the information on our website does not constitute a part of this prospectus.

CERTAIN DOCUMENTS INCORPORATED BY REFERENCE

In this document, we “incorporate by reference” the information we file with the SEC, which means that we can disclose important information to you by referring to that information. The information incorporated by reference is considered to be a part of this prospectus, and later information filed with the SEC will update and supersede this information. Notwithstanding this statement, however, you may rely on information that has been filed at the time you made your investment decision. We incorporate by reference the documents listed below:

10

Table of Contents

We also incorporate by reference all future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”) on or (1) after the date of the filing of the registration statement containing this prospectus and prior to the effectiveness of such registration statement and (2) after the date of this prospectus and prior to the termination of any offering made hereby.

You may request a copy of these filings, at no cost, by writing or telephoning us at the following address or phone number:

Marcus & Millichap, Inc.

23975 Park Sorrento, Suite 400

Calabasas, CA 91302

Attention: Chief Financial Officer

Telephone: (818) 212-2250

You should rely only on the information provided in this document or incorporated in this document by reference. We have not authorized anyone to provide you with different information. You should not assume that the information in this document, including any information incorporated herein by reference, is accurate as of any date other than that on the front of the document. Any statement incorporated herein shall be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained herein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus.

11

Table of Contents

PART II

INFORMATION NOT REQUIRED IN THE PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

The following table sets forth the costs and expenses payable by the selling stockholders in connection with the offerings described in this registration statement. All of the amounts shown are estimates except the SEC registration fee.

Item 15. Indemnification of Directors and Officers.

Section 145 of the DGCL provides that a corporation may indemnify directors and officers as well as other employees and individuals against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement in connection with any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, in which such person is made a party by reason of the fact that the person is or was a director, officer, employee or agent of the corporation (other than an action by or in the right of the corporation—a “derivative action”), if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to the best interests of the corporation and, with respect to any criminal action or proceeding, had no reasonable cause to believe such person’s conduct was unlawful. A similar standard is applicable in the case of derivative actions, except that indemnification only extends to expenses (including attorneys’ fees) incurred in connection with the defense or settlement of such action, and the statute requires court approval before there can be any indemnification where the person seeking indemnification has been found liable to the corporation. The statute provides that it is not exclusive of other indemnification that may be granted by a corporation’s by-laws, disinterested director vote, stockholder vote, agreement or otherwise.

Our certificate of incorporation limits the liability of our directors to the maximum extent permitted by the DGCL. The DGCL provides that directors will not be personally liable for monetary damages for breach of their fiduciary duties as directors, except with respect to liability:

However, if the DGCL is amended to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of our directors will be eliminated or limited to the fullest extent permitted by the DGCL, as so amended. The modification or repeal of this provision of our amended and restated certificate of incorporation will not adversely affect any right or protection of a director existing at the time of such modification or repeal.

II-1

Table of Contents

Our certificate of incorporation and bylaws provide that we will, to the fullest extent from time to time permitted by law, indemnify our directors and officers against all liabilities and expenses in any suit or proceeding, arising out of their status as an officer or director or their activities in these capacities. We will also indemnify any person who, at our request, is or was serving as a director, officer, trustee, employee or agent of another corporation, partnership, joint venture, trust or other enterprise. We may, by action of our Board of Directors, provide indemnification to our employees and agents within the same scope and effect as the foregoing indemnification of directors and officers. In addition, we have entered into separate indemnification agreements with each of our directors and executive officers, which may be broader than the specific indemnification provisions contained in the DGCL. These indemnification agreements may require us, among other things, to indemnify our directors and officers against liabilities that may arise by reason of their status or service as directors or officers if they acted in good faith and in a manner they reasonably believed to be in or not opposed to the best interests of our company and, in the case of a criminal proceeding, had no reasonable cause to believe their conduct was unlawful.

The right to be indemnified will include the right of an officer or a director to be paid expenses, including attorneys’ fees, in advance of the final disposition of any proceeding, provided that, if required by law, we receive an undertaking to repay such amount if it will be determined that he or she is not entitled to be indemnified.

Item 16. Exhibits.

Item 17. Undertakings.

(a) The undersigned registrant hereby undertakes:

(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;

II-2

Table of Contents

(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement;

(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

provided, however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

(2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

(4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:

(A) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

(B) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

(5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities: The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to

II-3

Table of Contents

such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

(b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(c) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

II-4

Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Calabasas, State of California, on February 6, 2015.

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints, jointly and severally, John J. Kerin and Martin E. Louie, and each of them, any of whom may act without joinder of the other, as his or her true and lawful attorney-in-fact, with full power of substitution and resubstitution, for him or her in any and all capacities, to sign any and all amendments (including post-effective amendments) to this registration statement, any subsequent registration statement for the same offering which may be filed under Rule 462(b) under the Securities Act of 1933 (a “462 Registration Statement”) and any and all amendments (including post-effective amendments) to any such 462 Registration Statement, and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that each of said attorneys-in-fact or any of them, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

II-5

Table of Contents

II-6

Table of Contents

INDEX TO EXHIBITS