UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant  x                            Filed by a Party other than the Registrant  ¨

Check the appropriate box:

Marcus & Millichap

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

Marcus & Millichap, Inc.

23975 Park Sorrento, Suite 400

Calabasas, California 91302

(818) 212-2250

March 23, 2015

Dear Stockholder:

I am pleased to invite you to attend the 2015 Annual Meeting of Stockholders of Marcus & Millichap, Inc. The meeting will be held on Tuesday, May 5, 2015 at 2:00 p.m. local time at the Garden Court Hotel, 520 Cowper Street, Palo Alto, California 94301.

We are furnishing our proxy materials to stockholders primarily over the Internet. This process expedites stockholders’ receipt of proxy materials, while significantly lowering the costs of our annual meeting and conserving natural resources. On March 23, 2015, we mailed to our stockholders a notice containing instructions on how to access our Proxy Statement and 2014 Annual Report to Stockholders and to vote online. The notice also included instructions on how you can receive a paper copy of your annual meeting materials. If you received your annual meeting materials by mail, the Proxy Statement, 2014 Annual Report to Stockholders and proxy card were enclosed.

At this year’s annual meeting, the agenda includes the following items:

Details regarding the meeting and the business to be conducted are more fully described in the accompanying Notice of 2015 Annual Meeting of Stockholders and Proxy Statement.

Your vote is important. Whether or not you plan to attend the annual meeting, I hope you will vote as soon as possible. You may vote over the Internet or in person at the annual meeting or, if you receive your proxy materials by U.S. mail, you also may vote by mailing a proxy card or voting by telephone. Please review the instructions on the notice or on the proxy card regarding your voting options. Only stockholders showing proof of ownership on the record date will be allowed to attend the meeting in person.

Sincerely yours,

John J. Kerin

President and Chief Executive Officer

23975 Park Sorrento, Suite 400

Calabasas, California 91302

(818) 212-2250

NOTICE OF 2015 ANNUAL MEETING OF STOCKHOLDERS

By Order of the Board of Directors,

John J. Kerin

President and Chief Executive Officer

Calabasas, California

March 23, 2015

INTERNET AVAILABILITY OF PROXY MATERIALS

We are furnishing proxy materials to our stockholders primarily via the Internet. On March 23, 2015, we mailed most of our stockholders on the record date a Notice Regarding the Availability of Proxy Materials (“Notice of Internet Availability”) containing instructions on how to access and review all of the important information contained in our proxy materials, including our Proxy Statement and our 2014 Annual Report to Stockholders. The Notice of Internet Availability also instructs you on how to vote via the Internet. Other stockholders, in accordance with their prior requests, have been mailed paper copies of our proxy materials and a proxy card or voting form.

Internet distribution of our proxy materials is designed to expedite receipt by stockholders, lower the cost of the annual meeting and conserve natural resources. However, if you would prefer to receive paper copies of proxy materials, please follow the instructions included in the Notice of Internet Availability.

Important Notice Regarding the Availability of Proxy Materials for

the Annual Meeting of Stockholders to be Held on May 5, 2015:

The Notice of the 2015 Annual Meeting, the Proxy Statement and

the 2014 Annual Report to Stockholders are available at http://www.astproxyportal.com/ast/18576.

ATTENDING THE ANNUAL MEETING

QUESTIONS

Marcus & Millichap, Inc. 23975 Park Sorrento, Suite 400

Calabasas, California 91302

(818) 212-2250

PROXY STATEMENT

Our Board of Directors (the “Board”) solicits your proxy for the 2015 Annual Meeting of Stockholders and any postponement or adjournment of the meeting for the matters set forth in “Notice of 2015 Annual Meeting of Stockholders.” The annual meeting will be held on Tuesday, May 5, 2015 at 2:00 p.m. local time at the Garden Court Hotel, 520 Cowper Street, Palo Alto, California 94301. We made this Proxy Statement available to stockholders beginning on March 23, 2015.

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PROPOSAL 1: ELECTION OF DIRECTORS

Our Board; Selection of Nominees

Our Board is divided into three classes serving staggered three-year terms. At the 2015 Annual Meeting of the Stockholders (the “Annual Meeting”), you and the other stockholders will elect two individuals to serve as directors for three-year terms that end at the 2018 Annual Meeting of Stockholders.

Our Nominating and Corporate Governance Committee is charged with identifying, evaluating and recommending to the full Board director nominees. There are no minimum qualifications for director. The Nominating and Corporate Governance Committee generally seeks individuals with broad experience at the policy-making level in business, or with particular industry expertise. While we do not have a formal diversity policy for Board membership, we look for potential candidates that help ensure that the Board has the benefit of a wide range of attributes. We also look for financial oversight experience, financial community experience and a good reputation with the financial community; business management experience; business contacts, business knowledge and influence that may be useful to our business; and knowledge about our industry. We believe that all of our directors should be committed to enhancing stockholder value and should have sufficient time to carry out their duties and to provide insight and practical wisdom based on experience. Their service on other boards of public companies should be limited to a number that permits them, given their individual circumstances, to perform and carry out all director duties in a responsible manner. Each director must also represent the interests of all stockholders.

When seeking new director candidates, the Nominating and Corporate Governance Committee will consider potential candidates for directors submitted by Board members, members of our management and our stockholders, and does not evaluate candidates differently based upon the source of the nominee.

Both of the nominees, Nicholas F. McClanahan and William A. Millichap, are now members of the Board. The terms of both Mr. McClanahan and Mr. Millichap will expire at the Annual Meeting.

The individuals named as proxyholders will vote your proxy for the election of the two nominees unless you direct them to withhold your vote. If any nominee becomes unable to serve as a director before the Annual Meeting (or decides not to serve), the individuals named as proxyholders may vote for a substitute.

Set forth below are the names and ages of these nominees and the other continuing directors, the years they became directors, their principal occupations or employment for at least the past five years and the names of other public companies for which they serve as a director or have served as a director during the past five years. Also set forth are the specific experience, qualifications, attributes or skills that led our Nominating and Corporate Governance Committee to conclude that each person should serve as a director. Unless the context requires otherwise, the words “Marcus & Millichap,” “we,” the “Company,” “us” and “our” refer to Marcus & Millichap, Inc. since June 2013 and Marcus & Millichap Real Estate Investment Services, Inc. before June 2013.

Nominees for Election for a Three-Year Term Ending with the 2018 Annual Meeting

Nicholas F. McClanahan, 70, became a director in October 2013. Mr. McClanahan served as managing director of strategic relationships at Accretive Advisor Inc. from September 2010 to February 2012. From April 1971 through April 2006, Mr. McClanahan worked at Merrill Lynch & Co. in various positions including as executive vice president of Merrill Lynch Canada and managing director of Merrill Lynch Private Banking Group from 2003 to 2005. Mr. McClanahan received a B.B.A. in finance from Florida Atlantic University and is a graduate of the Securities Industry Institute executive education program at The Wharton School at the University of Pennsylvania. Mr. McClanahan possesses particular knowledge and experience in finance, capital structure, strategic planning, management and investment.

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William A. Millichap, 71, has served as our co-chairman since 2000 and also acts in an advisory capacity to the Company. Mr. Millichap served as our president from 1986 to 2000. Mr. Millichap has also served as a board member and managing director of Marcus & Millichap Company since 1985, and was president of Marcus & Millichap Company from 1986 to 2000. He was also the managing partner of Marcus & Millichap Venture Partners. Mr. Millichap also served on the board of directors of Essex Property Trust from 1994 to 2009, and LoopNet, Inc. from 1999 to 2008. In addition, Mr. Millichap was one of the founders of San Jose National Bank and The Mid Peninsula Bank of Commerce, where he served on the board of directors. Mr. Millichap served on the board of directors of the National Multi Housing Council and is a member of the International Council of Shopping Centers, the Urban Land Institute and the National Venture Capital Association. Mr. Millichap received a B.S. in Economics from the University of Maryland and served as an officer in the United States Navy. Mr. Millichap, co-founder of Marcus & Millichap Company, has substantial business and real estate industry expertise due to various leadership roles. He has extensive knowledge of the Company, over 35 years of experience working the real estate industry, and significant experience serving on boards of other public companies.

Recommendation of the Board

THE BOARD RECOMMENDS THAT YOU VOTE “FOR” THE ELECTION OF EACH OF THE ABOVE NOMINEES.

Directors Continuing in Office Until the 2016 Annual Meeting

George M. Marcus, 73, is our founder and has served as our chairman since 1971. Mr. Marcus is also the founder, CEO and chairman of Marcus & Millichap Company, and the chairman of various companies affiliated with Marcus & Millichap Company, including SummerHill Homes and Pacific Urban Residential. Mr. Marcus is also the founder and chairman of Essex Property Trust, a public multifamily real estate investment trust. Mr. Marcus was also one of the original directors of Plaza Commerce Bank and Greater Bay Bancorp, both of which were formerly publicly held financial institutions. From 2000 to 2012, Mr. Marcus was a member of the Board of Regents of The University of California. He is a member of the Real Estate Roundtable, the Bay Area Council and the Policy Advisory Board of the University of California at Berkeley—Center for Real Estate and Urban Economics. He received a B.A. in economics from San Francisco State University and is also a graduate of the Harvard Business School of Owners/Presidents Management Program and the Georgetown University Leadership Program. He has extensive knowledge of the Company, over 35 years of experience working in the real estate industry and significant experience serving on boards of other public companies.

George T. Shaheen, 70, became a director in October 2013. Mr. Shaheen currently serves as chairman of the board of Korn/Ferry International, an international executive search and consulting firm. He also serves on the board of directors of NetApp, Inc., 24-7, Inc. and Green Dot Corporation, and previously served on the boards of PRA International and Univita Health. He is also a member of the strategic advisory board of Genstar Capital. Mr. Shaheen was the chief executive officer of Siebel Systems, Inc., a CRM software company, from April 2005 until the sale of the company in January 2006. From October 1999 to April 2001, he served as the chief executive officer and chairman of the board of Webvan Group, Inc. Mr. Shaheen was previously the chief executive officer and global managing partner of Andersen Consulting, which later became Accenture, from 1988 to 1999. He has served as an IT Governor of the World Economic Forum and as a member of the board of advisors for the Northwestern University Kellogg Graduate School of Management. He has also served on the board of trustees of Bradley University. Mr. Shaheen received a B.S. in marketing and an M.B.A. in management from Bradley University. Mr. Shaheen has extensive experience as a senior executive and director of numerous companies, and he possesses significant business and leadership knowledge and experience.

Don C. Watters, 72, became a director in October 2013. Mr. Watters is a director emeritus of McKinsey & Company, the global management consulting firm, where he continues to lead training programs for consultants. During his 28 years with McKinsey & Company, Mr. Watters served primarily Fortune 500 sized private sector

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clients in over a dozen different industries on issues of strategy, organization and operations. He served on the board of directors of Merant PLC, a publicly-traded company based in the United Kingdom from the late 1990’s to 2004. Additionally, Mr. Watters was on the advisory board of Cunningham Communication, Inc. Mr. Watters has served on the board of directors of numerous non-profit organizations, including the San Jose Ballet, the Tech Museum of Innovation, the American Leadership Forum Silicon Valley, the American Leadership Forum National, United Way Silicon Valley and the Bay Area Garden Railway Society. He is on the advisory board of the Markkula Center for Applied Ethics at Santa Clara University. Mr. Watters received a B.S. in engineering from the University of Michigan and an M.B.A. from Stanford University. Mr. Watters possesses substantial knowledge and experience in strategic planning, organization, operations and leadership of complex organizations.

Directors Continuing in Office Until the 2017 Annual Meeting

John J. Kerin, 59, has served as President and Chief Executive Officer of the Company since 2010 and as a director since March 1996. Prior to his appointment as President and CEO of the Company, Mr. Kerin was a senior vice president and managing director from 1996 to 2010, responsible for the operations of 18 offices nationwide. Mr. Kerin joined the firm as a sales professional in 1981, ranking among the top 10 sales professionals nationwide in 1985 and 1986, and was promoted to senior investment associate in 1987. In 1987, Mr. Kerin became the regional manager of the Los Angeles office, where he succeeded in making it one of the top-producing offices in the firm. He was elected first vice president in 1994 and promoted to managing director in 1996. Mr. Kerin received a B.A. in Communications from Loyola Marymount University. Mr. Kerin has extensive knowledge of the Company and over 35 years of experience working in the real estate industry.

Norma J. Lawrence, 60, became a director in October 2013. Ms. Lawrence served as a partner in the audit department of KPMG LLP where she specialized in real estate. Ms. Lawrence was with KPMG from 1979 through 2012 and she was a member of the National Association of Real Estate Investment Trusts, the Pension Real Estate Association, the National Council of Real Estate Investment Fiduciaries, the California Society of Certified Public Accountants, and the American Institute of Certified Public Accountants. She also was a member of the Organization of Women Executives, the Valley Development Forum and the Los Angeles Chapter of Construction Financial Management Association. Ms. Lawrence received a B.A. in mathematics and an M.B.A. in finance and accounting from the University of California, Los Angeles. Ms. Lawrence possesses particular knowledge and expertise in accounting and financial matters in the real estate industry.

CORPORATE GOVERNANCE

Board Responsibilities and Structure

The Board oversees, counsels and directs management in the long-term interests of the Company and our stockholders. The Board’s responsibilities include:

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The Board and its committees met throughout the year on a set schedule, held special meetings and acted by written consent from time to time as appropriate. The Board held four meetings in 2014.

The Board is divided into three classes. The Class I directors, Norma J. Lawrence and John J. Kerin, will serve until the 2017 Annual Meeting of Stockholders, the Class II directors, Nicholas F. McClanahan and William A. Millichap, have served an initial term and are subject to election at the upcoming Annual Meeting, and the Class III directors, George M. Marcus, Don C. Watters and George T. Shaheen, will serve an initial term until the 2016 Annual Meeting of Stockholders. Each class will be elected for three-year terms following its respective initial term.

Our Bylaws do not dictate a particular Board structure and the Board is free to determine whether or not to have a Chairman and, if so, to select that Chairman and our CEO in the manner it considers our best interest. Currently, the Board has selected George M. Marcus and William A. Millichap to hold the positions of Co-Chairman of the Board. Mr. Marcus’ and Mr. Millichap’s experience at the Company has afforded them intimate knowledge of the issues, challenges and opportunities facing the Company’s business. Accordingly, they are well positioned to focus the Board’s attention on the most pressing issues facing the Company. The Board has appointed Don C. Watters as its lead independent director. As lead independent director, Mr. Watters will oversee the executive sessions of the independent directors and will serve as a liaison between the independent directors and the Co-Chairmen. The Board believes its administration of its risk oversight function has not affected the Board’s leadership structure.

Director Independence

The Board is currently composed of seven directors. Under the rules of the New York Stock Exchange (the “NYSE”), independent directors must comprise a majority of a listed company’s board of directors.

The Board has undertaken a review of its composition, the composition of its committees and the independence of each director. Based upon information requested from and provided by each director concerning his or her background, employment and affiliations, including family relationships, the Board has determined that Nicholas F. McClanahan, Don C. Watters, George T. Shaheen and Norma J. Lawrence, representing four of our seven directors, do not have a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director and that each of these directors is “independent,” as that term is defined under the applicable rules and regulations of the SEC and the listing requirements and rules of the NYSE. In making this determination, the Board considered the current and prior relationships that each non-employee director has with our Company and all other facts and circumstances the Board deemed relevant in determining their independence, including the beneficial ownership of our capital stock by each non-employee director.

Transactions Considered in Independence Determinations

In making its independence determinations, the Board considered transactions that occurred since the beginning of fiscal year 2012 between the Company and entities associated with the independent directors or members of their immediate family. All identified transactions that appeared to relate to the Company and a family member of, or entity with a known connection to, a director were presented to the Board for consideration.

Except for George M. Marcus and William A. Millichap, none of the non-employee directors were disqualified from “independent” status under the objective tests. In making its subjective determination that each of our Company’s non-employee directors other than Messrs. Marcus and Millichap are independent, the Board reviewed and discussed additional information provided by the directors and the Company with regard to each director’s business and personal activities as they may relate to the Company and the Company’s management. The Board considered the transactions in the context of the NYSE objective standards, the special standards established by the SEC for members of audit committees, and the SEC, NYSE and U.S. Internal Revenue Service (“IRS”) standards for compensation committee members. Based on all of the foregoing, as required by the NYSE

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rules, the Board made a subjective determination that no relationships exist that, in the opinion of the Board, would impair the director’s independence.

Board Committees and Charters

The Board delegates various responsibilities and authority to different Board committees. Committees regularly report on their activities and actions to the full Board. The Board currently has, and appoints the members of, a standing Audit Committee, Compensation Committee, Nominating and Corporate Governance Committee and Executive Committee. Each of the Board committees has a written charter approved by the Board, and we post each charter on our web site at http://www.marcusmillichap.com/. Each committee can engage outside experts, advisors and counsel to assist the committee in its work. The following table identifies the current committee members.

Audit Committee. Our Audit Committee currently consists of Norma J. Lawrence (Chair), George T. Shaheen and Don C. Watters. The Board has affirmatively determined that each of such directors meets the definition of “independent director” for purposes of the NYSE rules and the independence requirements of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The Board has also determined that Norma J. Lawrence qualifies as an “audit committee financial expert” under the applicable SEC rules and regulations and that she is “financially literate” as that term is defined by the NYSE corporate governance requirements. Our Audit Committee is responsible for:

Compensation Committee. Our Compensation Committee currently consists of Don C. Watters (Chair), Nicholas F. McClanahan and George T. Shaheen. The Board has affirmatively determined that each of such

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directors meets the definition of “independent director” for purposes of the NYSE rules and the independence requirements of the Exchange Act. William A. Millichap served on the Compensation Committee until October 2014. Our Compensation Committee is responsible for:

Nominating and Corporate Governance Committee. Our Nominating and Corporate Governance Committee currently consists of Nicholas F. McClanahan (Chair), Norma J. Lawrence and George T. Shaheen. The Board has affirmatively determined that each of such directors meets the definition of “independent director” for purposes of the NYSE rules and the independence requirements of the Exchange Act. George M. Marcus served on the Nominating and Corporate Governance Committee until October 2014. Our Nominating and Corporate Governance Committee is responsible for:

Executive Committee. Our Executive Committee currently consists of George M. Marcus, William A. Millichap and John J. Kerin. The Executive Committee has all the powers of the Board except those powers reserved by law to the full Board or as limited by the Executive Committee Charter. The Executive Committee did not meet in 2014.

Attendance at Board, Committee and Annual Stockholders’ Meetings

We expect each director to attend every meeting of the Board and the committees on which he or she serves, and we encourage them to attend the annual meetings of the stockholders. Each of the directors attended the 2014 annual meeting of stockholders and all of the meetings of the Board and the committees on which they served in 2014, and we expect that all directors will attend the upcoming Annual Meeting.

The Board’s Role in Risk Oversight

Our Company faces a number of risks, including operational, economic, financial, legal, regulatory and competitive risks. Our management is responsible for the day-to-day management of the risks we face. While our Board, as a whole, has ultimate responsibility for the oversight of risk management, it administers its risk oversight role in part through the Board committee structure, with the Audit Committee, Compensation Committee and Nominating and Corporate Governance Committee responsible for monitoring and reporting on the material risks associated with their respective subject matter areas.

The Board’s role in our risk oversight process will include receiving regular reports from members of senior management, as well as external advisors, on areas of material risk to us, including operational, economic, financial, legal, regulatory and competitive risks. The full Board (or the appropriate committee in the case of

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risks that are reviewed by a particular committee) will receive these reports from those responsible for the relevant risk in order to enable it to understand our risk exposures and the steps that management will take to monitor and control these exposures. When a committee receives the report, the Chairman of the relevant committee generally will provide a summary to the full Board at the next Board meeting. This will enable the Board and its committees to coordinate the risk oversight role. The Audit Committee will assist the Board in oversight and monitoring of principal risk exposures related to financial statements, legal, regulatory and other matters, as well as related mitigation efforts. The Compensation Committee will assess, at least annually, the risks associated with our compensation policies. The Nominating and Corporate Governance Committee will assist the Board in oversight of risks that we have relative to compliance with corporate governance standards.

Corporate Governance Guidelines and Code of Ethics

We have adopted Corporate Governance Guidelines and a Code of Ethics that apply to all of our employees, officers and directors, including those officers responsible for financial reporting. These standards are designed to deter wrongdoing and to promote honest and ethical conduct. The Corporate Governance Guidelines and Code of Ethics are available at our website at http://www.marcusmillichap.com/. Any amendments to the Corporate Governance Guidelines and Code of Ethics, or any waivers of their requirements required to be disclosed pursuant to SEC or NYSE requirements, will be disclosed on the website.

Communications from Stockholders and Other Interested Parties to Directors

The Board recommends that stockholders and other interested parties initiate communications with the Board, any committee of the Board or any individual director in writing to the attention of our Corporate Secretary at our principal executive office at 23975 Park Sorrento, Suite 400, Calabasas, CA 91302. This process will assist the Board in reviewing and responding to stockholder communications in an appropriate manner. The Board has instructed our Corporate Secretary to review such correspondence and, at his discretion, not to forward items if he deems them to be of a commercial or frivolous nature or otherwise inappropriate for the Board’s consideration.

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PROPOSAL 2: RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR 2015

Ernst & Young LLP served as our independent registered public accounting firm for 2013 and 2014. The Audit Committee has once again selected Ernst & Young LLP as our independent registered public accounting firm for the year ending December 31, 2015. As a matter of good corporate governance, the Audit Committee is submitting its appointment to our stockholders for ratification. If the appointment of Ernst & Young LLP is not ratified by the majority of the shares of common stock present or represented at the annual meeting and entitled to vote on the proposal, the Audit Committee will review its future appointment of an independent registered public accounting firm in light of that vote result.

The Audit Committee pre-approves and reviews audit and non-audit services performed by our independent registered public accounting firm, as well as the fees charged for such services. In its pre-approval and review of non-audit service fees, the Audit Committee considers, among other factors, the possible effect of the performance of such services on the auditor’s independence. For additional information concerning the Audit Committee and its activities with the independent registered public accounting firm, see “Corporate Governance” and “Audit Committee Report” in this Proxy Statement.

We expect that a representative of Ernst & Young LLP will attend the Annual Meeting, and the representative will have an opportunity to make a statement if he or she so chooses. The representative will also be available to respond to appropriate questions from stockholders.

Fees Billed by Independent Registered Public Accounting Firm

The following table shows the fees and related expenses for audit and other services provided by Ernst & Young LLP in 2014 and 2013. The services described in the following fee table were approved in conformity with the Audit Committee’s pre-approval process.

Audit Fees. This category includes fees for (i) the audit of our annual consolidated financial statements, (ii) reviews of our quarterly condensed consolidated financial statements, (iii) in 2013, services in connection with our registration statements, including our registration statement on Form S-1 related to our initial public offering (the “IPO”), and (iv) services that are normally provided by our independent auditors in connection with statutory and regulatory filings or engagements.

Audit-Related Fees. This category includes fees for assurance and related services that are reasonably related to the performance of the audit or review of our consolidated financial statements and are not reported under “Audit Services.” These services include, but are not limited to, consultations concerning financial accounting and reporting standards and audits in connection with acquisitions.

Tax Fees. This category includes fees for professional services for tax compliance, tax advice and tax planning. These services include assistance regarding federal, state and international tax compliance, assistance with tax reporting requirements and audit compliance, tax planning, consulting and assistance on business restructuring. Prior to October 31, 2013, we participated in a tax-sharing agreement (“TSA”) with our former parent company Marcus & Millichap Company (“MMC”), and provided for income taxes based on a 43.5% rate

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specified in the TSA. Generally, under the TSA, all tax compliance and advisory services were provided to, and paid by, MMC on behalf of all entities included in the TSA. As a stand-alone taxpayer, we may incur higher fees for tax services in future periods. The amounts set forth under 2014 include fees associated with a review of the tax deductibility of IPO transaction expenses.

All Other Fees. This category includes fees for products and services other than the services reported above.

The Audit Committee determined that Ernst & Young LLP’s provision of these services, and the fees that we paid for these services, are compatible with maintaining the independence of the independent registered public accounting firm. The Audit Committee pre-approved all services that Ernst & Young LLP has provided since our IPO in accordance with the pre-approval policy discussed above.

THE BOARD RECOMMENDS THAT YOU VOTE “FOR” THE RATIFICATION OF THE APPOINTMENT OF ERNST & YOUNG LLP AS OUR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR 2015.

AUDIT COMMITTEE REPORT

The Audit Committee of the Board consists of the three directors whose names appear below. The Audit Committee is composed exclusively of directors who are independent under the NYSE listing standards and the SEC rules.

The Audit Committee’s general role is to assist the Board in monitoring the Company’s financial reporting process and related matters. Its specific responsibilities are set forth in its charter.

The Audit Committee has reviewed the Company’s financial statements for the year ended December 31, 2014 and met with management, as well as with representatives of Ernst & Young LLP, the Company’s independent registered public accounting firm, to discuss the financial statements. The Audit Committee also discussed with members of Ernst & Young LLP the matters required to be discussed by the applicable Public Company Accounting Oversight Board and SEC requirements.

In addition, the Audit Committee received the written disclosures and the letter from Ernst & Young LLP required by applicable requirements of the Public Company Accounting Oversight Board regarding the independent accountant’s communications with the Audit Committee concerning independence, and discussed with members of Ernst & Young LLP its independence.

Based on these discussions, the financial statement review and other matters it deemed relevant, the Audit Committee recommended to the Board that the Company’s audited financial statements for the year ended December 31, 2014 be included in the Company’s Annual Report on Form 10-K for 2014.

Norma J. Lawrence (Chair)

George T. Shaheen

Don C. Watters

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COMPENSATION OF THE NAMED EXECUTIVE OFFICERS AND DIRECTORS

Executive Compensation

This executive compensation section discloses the compensation awarded to or earned by our “named executive officers” during 2013 and 2014. They are:

Summary Compensation Table

The following table sets forth information regarding the compensation awarded to, earned by, or paid to each of our Chief Executive Officer and the two most highly compensated executive officers other than our principal executive officer during the two years ended December 31, 2014. Throughout this Proxy Statement, these three officers are referred to as our named executive officers. As an emerging growth company, we have opted to comply with the executive compensation disclosure rules applicable to “smaller reporting companies” as such term is defined in the rules promulgated under the Securities Act of 1933, as amended (the “Securities Act”).

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Outstanding Equity Awards at Fiscal Year End

None of our named executive officers had any outstanding equity awards as of December 31, 2014. For further information regarding the DSUs granted to our named executive officers, see the discussion under the heading “Nonqualified Deferred Compensation.”

Employment Agreements

We entered into an employment agreement with John J. Kerin, our President and Chief Executive Officer, dated as of July 1, 2010, as amended. The employment agreement has no specific term and constitutes at-will employment. For 2014, in addition to a current annual base salary of $680,000, Mr. Kerin is eligible to receive an annual discretionary incentive of up to 2% of our fiscal year-end pre-tax profit, up to a maximum of four times the base salary actually paid to Mr. Kerin during the fiscal year. The employment agreement also contains non-competition and non-disclosure provisions.

Pension Benefits

We do not maintain any defined benefit pension plans.

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Nonqualified Deferred Compensation

The following table shows the contributions and earnings during 2014, and account balance as of December 31, 2014, for our named executive officers under the Marcus & Millichap Real Estate Investment Brokerage Company DCP (the “NQDC Plan”), the SARs or the 2013 Omnibus Equity Incentive Plan (the “2013 Equity Plan”), as the case may be:

Nonqualified Deferred Compensation—Fiscal 2014

The amounts deferred pursuant to the NQDC Plan are reflected as a bookkeeping account maintained on behalf of each participant in the NQDC Plan. The NQDC Plan is a nonqualified deferred compensation plan that allows participants to defer compensation at levels in excess of the limitations imposed on deferrals of compensation under tax-qualified retirement plans. The aggregate earnings for fiscal year 2014 reflect the additions to the bookkeeping accounts for the participants based on their deemed investment elections with respect to the amounts held in their accounts. Participants can elect among lump sum and installment distribution provisions that commence on a fixed date in the future or upon termination of employment.

The amounts deferred pursuant to the SARs are reflected as a bookkeeping account maintained on behalf of that holders of the SARs. The initial account balances for the SARs were fixed for all individuals on March 31, 2013. The Company began to accrue interest starting on January 1, 2014 based on SAR account balances as of December 31, 2013, which for 2014, was 5.03% based on a 10-Year Treasury Note plus 200 basis points. Upon a payment event, the Account Balance is paid to the executive in 10 annual installments, with the first installment due within 30 days after the end of year in which the termination occurs or, in some cases, within 30 days after

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the event giving rise to the redemption. Upon a termination other than for cause or a resignation other than by mutual agreement, the executive only receives 75% of the appreciation value on the vested portion. In the event of a sale of the company, the executive officer receives the appreciation value upon the consummation of the change of control.

We granted fully vested DSUs to the named executive officers under the 2013 Equity Plan in connection with our IPO to replace the existing beneficial ownership represented by the frozen SARs. The DSUs are settled in actual stock at a rate of 20% per year if the executive officer remains employed by us during that period (or otherwise all unsettled shares of stock upon termination of employment will be settled five years from the termination date). In addition, the formula settlement value of all outstanding shares of stock held by our executive officers will be removed, but all such shares of stock will be subject to sales restrictions that lapse at a rate of 20% per year for five years if the executive officer remains employed by us. Additionally, in the event of death or termination of employment after reaching the age of 67, 100% of the DSUs will be settled and 100% of the shares of stock will be released from the resale restriction. Further, 100% of the shares of stock will be released from the resale restriction upon the consummation of a change of control of the Company. In November 2014, 20% of DSUs were net settled and 20% of restricted stock was released from the resale restriction. Shares of common stock were withheld from the distribution to pay applicable required employee statutory withholding taxes based on the market value of the shares on the settlement date.

Severance and Change in Control Benefits

In the event of a change in control of the Company, the executive officer will receive their full Account Balance related to their SARs upon the consummation of the change in control.

Stock Ownership Guidelines

We have adopted stock ownership guidelines for non-employee directors and executive officers. These guidelines call for each non-employee director to own shares of our common stock having a value equal to at least five times the non-employee director’s regular annual cash board service retainer, and for each executive officer to own shares of our common stock having a value equal to at least three times their annual base salary (or six times in the case of our CEO). Until these minimums are achieved, each non-employee director and executive officer shall retain 100% of the net after tax shares resulting from the vesting of equity awards. All of our directors and officers are currently in compliance with the ownership guidelines.

Director Compensation

Our Board previously adopted a director compensation policy. Each non-employee director receives fees for their services as follows:

In connection with the IPO, each non-employee director received a restricted stock grant of 5,000 shares. For each annual meeting after the IPO, each non-employee director is also entitled to receive an annual restricted stock grant on the date of our annual meeting equal to $60,000 divided by the fair market value of our common stock on the date of grant.

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Director Compensation Table

The following table sets forth the total compensation for our non-employee directors for the year ended December 31, 2014:

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PRINCIPAL STOCKHOLDERS

The following table sets forth information regarding the beneficial ownership of our common stock as of March 13, 2015 with respect to:

In accordance with SEC rules, each listed person’s beneficial ownership includes:

Unless otherwise indicated, all shares are or will be owned directly, and the indicated person has or will have sole voting and investment power. Except as otherwise noted, the address of each person listed in the table is c/o Marcus & Millichap, Inc., 23975 Park Sorrento, Suite 400, Calabasas, California 91302.

Beneficial ownership is determined in accordance with the rules of the SEC. The applicable percentage of ownership for each stockholder is based on 37,072,155 shares of common stock outstanding as of March 13, 2015. The amounts in the table do not include DSUs issued to executive officers in connection with the IPO since the shares issuable upon settlement of the DSUs cannot be received within 60 days from the date of this Proxy Statement. See “Certain Relationships and Related Transactions—IPO Related Equity Grants” for more information about the DSUs granted to our named executive officers and Mr. Millichap.

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CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

Since January 1, 2014, there has not been any transaction or series of similar transactions to which we were or are a party in which the amount involved exceeded or exceeds $120,000 and in which any of our directors or executive officers, any holder of more than 5% of any class of our voting securities or any member of the immediate family of any of the foregoing persons had or will have a direct or indirect material interest, other than the transactions described below, some of which represent continuing transactions from prior periods.

Relationship with Marcus & Millichap Company

The following are certain related party transactions between MMC and us. Prior to the spin-off of MMC’s real estate investment services business (the “Spin-Off”), MMC was our majority shareholder and was controlled by George M. Marcus, our co-Chairman. Upon the completion of the Spin-Off, we entered into a transition services agreement with MMC. The transition services agreement grants us the right to continue to use some of MMC’s services and resources related to our corporate functions, including employee benefits administration, corporate legal services and accounting systems management. We pay MMC mutually agreed-upon fees for these services, which are based on MMC’s costs of providing the transition services, without any markup.

In 2014, we incurred $1,306,000 in charges (including $1,018,000 for reimbursement of health insurance premium procured for us by MMC) from MMC pursuant to the transition services agreement. Until March 2014, MMC procured certain insurance and other miscellaneous services for us. Effective April 2014, we have procured our own health insurance coverage. Under the agreement, we are able to use MMC’s services for a fixed term established on a service-by-service basis, which may be extended by mutual written agreement. We may terminate the agreement or any of the specified services for any reason with 60 days prior written notice to MMC. We do not have any obligation to continue to use MMC’s services after the agreement expires. Generally, each party agreed to indemnify the other party and their respective directors, officers, employees and agents against losses resulting from the transition services, except to the extent of the service provider’s gross negligence or intentional misconduct, not to exceed the amount of fees paid to the service provider.

We occasionally represent MMC or its affiliates in sales and financing transactions and receive real estate brokerage commissions and financing fees from MMC or its affiliates for these transactions. In 2014, we recorded real estate brokerage commissions and financing fees of $1,329,000 from subsidiaries of MMC related to these services, and we incurred costs of services of $816,000 related to these services.

We lease our office in Palo Alto, covering approximately 12,000 square feet, from MMC under a lease that expires in May 2022. In 2014, we incurred $438,000 in rent expense under this lease.

Tax Matters Agreement

Responsibility for taxes. We entered into a tax matters agreement with MMC immediately prior to the completion of our IPO that governs the parties’ respective rights, responsibilities and obligations with respect to

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tax liabilities and benefits, tax attributes, the preparation and filing of tax returns, the control of audits and other tax proceedings and other matters regarding taxes. In general, under the agreement:

MMC generally has exclusive authority to control tax contests related to any income tax returns covering periods prior to the Deconsolidation Date. We have exclusive authority to control tax contests with respect to tax returns relating to taxes for which we or our subsidiaries have the payment responsibility under the agreement.

Preservation of the tax-free status of the Contribution, the Debt-for-Equity Exchange and the Distribution. We and MMC intended that MMC’s contribution of its MMREIS common stock and preferred stock to us, which we refer to as the Contribution, the Debt-for-Equity Exchange and the Distribution, would qualify as a “reorganization” pursuant to which no gain or loss would be recognized by us, MMC, or the MMC shareholders for federal income tax purposes under Sections 355, 368(a)(1)(D) and related provisions of the Code.

MMC received a private letter ruling from the IRS to the effect that, among other things, the Contribution, the Debt-for-Equity Exchange and the Distribution qualified as a transaction that was tax-free for U.S. federal income tax purposes under Sections 355, 368(a)(1)(D) and related provisions of the Code. In addition, MMC received an opinion of counsel regarding the tax-free status of these transactions.

We and MMC are prohibited from taking any action, or failing to take any action, (i) where such action or failure to act is inconsistent with any representation made in obtaining the IRS private letter ruling or the opinion of counsel referred to above or (ii) which adversely affects or could reasonably be expected to adversely affect the tax-free status of the Contribution, the Debt-for-Equity Exchange or the Distribution. In addition, during the time period ending two years after the date of the Distribution, we and MMC and our respective affiliates are precluded from ceasing to be engaged in the active trades or businesses relied upon in obtaining the IRS private letter ruling. During this same period we are precluded from taking any action or actions which, in the aggregate, have the effect of causing or permitting one or more persons to acquire a fifty percent or greater interest in us, as determined under Section 355 of the Code (unless we obtain a letter ruling from the IRS or an opinion of counsel acceptable to MMC that such actions will not affect the tax-free treatment of the Contribution, the Debt-for-Equity Exchange or the Distribution). This last-mentioned restriction could have the effect of precluding us from undertaking stock issuances or acquisitions that would otherwise be advantageous to us and our stockholders.

We have agreed to indemnify MMC and its affiliates against any and all tax-related liabilities incurred by them relating to the Contribution, the Debt-for-Equity Exchange or the Distribution to the extent caused by a breach of our tax-related restrictions described in the preceding paragraph. This indemnification provision will apply even if MMC has permitted us to take an action that would otherwise have been prohibited under such restrictions. Likewise, MMC has agreed to indemnify us and our affiliates against all tax-related liabilities

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incurred by us or our affiliates relating to the Contribution, the Debt-for-Equity Exchange or the Distribution to the extent caused by a breach of MMC’s tax-related restrictions.

Separation Agreement

We entered into a separation agreement with MMC immediately prior to the completion of our IPO that governs our relationship with MMC.

Indemnification. Generally, each party agreed to indemnify, defend and hold harmless the other party and its subsidiaries (and each of their affiliates) and their respective officers, employees and agents from and against any and all losses relating to, arising out of or resulting from: (i) liabilities assumed by the indemnifying party and (ii) any breach by the indemnifying party or its subsidiaries of the separation agreement and the other agreements described in this section (unless such agreement provides for separate indemnification). The separation agreement also specified procedures with respect to claims subject to indemnification.

Mutual releases. Generally, each of MMC and us agreed to release the other party from any and all liabilities. The liabilities released included liabilities arising under any contract or agreement, existing or arising from any acts or events occurring or failing to occur or any conditions existing before the completion of the IPO.

Term. The separation agreement will continue unless terminated by us and MMC.

Agreements with Management

Sale Restriction Agreements

In connection with our IPO, we entered into sale restriction agreements (“Sale Restriction Agreements”) with each of our executive officers: John J. Kerin, Martin E. Louie, Gene A. Berman, William E. Hughes, Jr. and Hessam Nadji. The Sale Restriction Agreements provided for vesting acceleration as to all outstanding shares of restricted shares held by the executive officers and termination of the existing Buy-Sell Agreements entered into between us and our executive officers prior to the IPO in exchange for the executive officers’ agreement to limit their ability to sell, transfer, hypothecate, encumber or in any way alienate any of their shares (the “Sale Restriction”). The Sale Restriction lapses as to 20% of the executive officer’s shares subject to the Sale Restriction annually over a five-year period on each anniversary of the effective date of the agreement, subject to the executive officer’s continued service through each lapse date. Additionally, the Sale Restriction shall lapse as to 100% of the shares subject to the Sale Restriction on an executive officer’s death, termination of an executive officer’s service after age 67, a change in control of the Company or the fifth anniversary of the date an executive officer ceases to be a service provider of the Company. The Sale Restriction Agreements also contain certain covenants, including non-solicitation and non-competition provisions, restricting the executive officers for three years after all of the shares have been release from the Sale Restriction.

Compensation Arrangements with Management

For information about compensation arrangements with our management, see “Compensation of the Named Executive Officers and Directors.”

Policies and Procedures for Related Party Transactions

Our Board adopted a written related person transaction policy that sets forth the policies and procedures for the review and approval or ratification of related person transactions. This policy covers any transaction, arrangement or relationship, or any series of similar transactions, arrangements or relationships in which we were or are to be a participant, the amount involved exceeds $120,000 and a related person had or will have a direct or indirect material interest, including, without limitation, purchases of goods or services by or from the related person or entities in which the related person has a material interest, indebtedness, guarantees of indebtedness or employment by us of a related person.

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ADDITIONAL MEETING INFORMATION

Meeting Admission. You are entitled to attend the annual meeting only if you were a holder of our common stock as of the close of business on March 9, 2015 or hold a valid proxy for the annual meeting. If attending the physical meeting, you should be prepared to present photo identification for admittance. In addition, if you are a stockholder of record, meaning that you hold shares directly with American Stock Transfer & Trust Company, LLC (“registered holders”), the inspector of elections will have your name on a list, and you will be able to gain entry with a form of photo identification. If you are not a stockholder of record but hold shares through a broker, bank, or nominee (“street name” or “beneficial” holders), in order to gain entry you must provide proof of beneficial ownership as of the record date, such as an account statement or similar evidence of ownership, along with a form of photo identification. If you do not provide photo identification and comply with the other procedures outlined above for attending the annual meeting in person, you will not be admitted to attend the annual meeting in person.

Proxy Solicitation. We will bear the expense of soliciting proxies. Our directors, officers and other employees, without additional compensation, may also solicit proxies personally or in writing, by telephone, e-mail, facsimile or otherwise. We are required to request that brokers, banks, and other nominees who hold stock in their names furnish our proxy materials to the beneficial owners of the stock, and we must reimburse these brokers, banks, and other nominees for the expenses of doing so, in accordance with statutory fee schedules.

Inspector of Elections. American Stock Transfer & Trust Company, LLC has been engaged as our independent inspector of elections to tabulate stockholder votes for the annual meeting.

Stockholder List. Our list of stockholders as of March 9, 2015 will be available for inspection at our principal executive office (23975 Park Sorrento, Suite 400, Calabasas, California 91302) for 10 days prior to the Annual Meeting. If you want to inspect the stockholder list, call our Finance Department at (818) 212-2250 to schedule an appointment.

OTHER MATTERS

Section 16(a) Beneficial Ownership Reporting Compliance. Section 16(a) of the Exchange Act requires our directors and executive officers, among others, to file with the SEC an initial report of ownership of our stock on Form 3 and reports of changes in ownership on Form 4 or Form 5. Persons subject to Section 16 are required by SEC regulations to furnish us with copies of all Section 16(a) forms that they file. As a matter of practice, our administrative staff assists our executive officers and directors in preparing initial ownership reports and reporting ownership changes, and typically files those reports on their behalf. Based solely on a review of the copies of such forms in our possession and on written representations from reporting persons, we believe that during 2014 all of our executive officers and directors filed the required reports on a timely basis under Section 16(a), except for a late Form 4 for Mr. Millichap to report the partial settlement of a DSU award in November 2014.

2016 Stockholder Proposals or Nominations. Pursuant to Rule 14a-8 under the Exchange Act, some stockholder proposals may be eligible for inclusion in the proxy statement for our 2016 Annual Meeting of Stockholders. These stockholder proposals must be submitted, along with proof of ownership of our stock in accordance with Rule 14a-8(b)(2), to our principal executive office (23975 Park Sorrento, Suite 400, Calabasas, California 91302) in care of our Corporate Secretary. Failure to deliver a proposal in accordance with this procedure may result in it not being deemed timely received. We must receive all submissions no later than the close of business (5:00 p.m. Pacific Time) on November 23, 2015.

In addition, under our Bylaws, any stockholder intending to nominate a candidate for election to the Board or to propose any business at our 2015 Annual Meeting of Stockholders, other than precatory (non-binding)

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proposals presented under Rule 14a-8, must give notice to our Corporate Secretary between January 8, 2016 and February 7, 2016, unless the notice also is made pursuant to Rule 14a-8. The notice must include information specified in our Bylaws, including information concerning the nominee or proposal, as the case may be, and information about the stockholder’s ownership of and agreements related to our stock. If the 2016 Annual Meeting of Stockholders is held more than 30 days from the anniversary of the 2015 Annual Meeting of Stockholders, the stockholder must submit notice of any such nomination and of any such proposal that is not made pursuant to Rule 14a-8 by the later of the 90th day before the 2016 Annual Meeting of Stockholders or the 10th day following the day on which public announcement of the date of such meeting is first made. We will not entertain any proposals or nominations at the 2016 Annual Meeting of Stockholders that do not meet the requirements set forth in our Bylaws. If the stockholder does not also comply with the requirements of Rule 14a-4(c)(2) under the Exchange Act, we may exercise discretionary voting authority under proxies that we solicit to vote in accordance with our best judgment on any such stockholder proposal or nomination.

March 23, 2015

By Order of the Board of Directors,

John J. Kerin

President and Chief Executive Officer

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MARCUS & MILLICHAP, INC.

Proxy for Annual Meeting of Stockholders on May 5, 2015

The undersigned hereby Solicited appoints on Behalf John of J. the Kerin Board and of Martin Directors E. Louie as proxies, each with the power to appoint his substitute, and hereby authorizes them to represent and vote, as designated on the reverse side hereof, all the shares of common stock of Marcus & Millichap, Inc. held of record by the undersigned at the close of business on March 9, 2015 at the Annual Meeting of Stockholders to be held May 5, 2015 at 2:00 p.m. Pacific Time at the Garden Court Hotel, 520 Cowper Street, Palo Alto, California 94301, and at any adjournment thereof.

(Continued and to be signed on the reverse side.)

1.1 14475

ANNUAL MEETING OF STOCKHOLDERS OF

MARCUS & MILLICHAP, INC.

May 5, 2015

GO GREEN e-Consent makes it easy to go paperless. With e-Consent, you can quickly access your proxy material, statements and other eligible documents online, while reducing costs, clutter and paper waste. Enroll today via www.amstock.com to enjoy online access.

NOTICE OF INTERNET AVAILABILITY OF PROXY MATERIALS:

The Notice of Meeting, proxy statement and proxy card are available at http://www.astproxyportal.com/ast/18576

Please sign, date and mail your proxy card in the envelope provided as soon as possible.

Please detach along perforated line and mail in the envelope provided.

20230000000000000000 0 050515

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” THE ELECTION OF DIRECTORS AND “FOR” PROPOSAL 2. x PLEASE SIGN, DATE AND RETURN PROMPTLY IN THE ENCLOSED ENVELOPE. PLEASE MARK YOUR VOTE IN BLUE OR BLACK INK AS SHOWN HERE

1. Election of two class II directors:

NOMINEES:

FOR ALL NOMINEES O O Nicolas William A. F. McClanahan Millichap

FOR WITHHOLD ALL NOMINEES AUTHORITY

FOR (See ALL instructions EXCEPT below)

INSTRUCTIONS: To withhold authority to vote for any individual nominee(s), mark “FOR ALL EXCEPT” and fill in the circle next to each nominee you wish to withhold, as shown here:

To indicate changes change your to the the new address registered address on name(s) your in the account, address on the please account space check above. may not the Please be box submitted at note right and that via this method.

2. To ratify the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2015.

3. To transact such other business as may properly come before the meeting or any adjournments or postponements thereof.

In their discretion, the proxies are authorized to vote upon such other business as may properly come before the Annual Meeting. This proxy when properly executed will be voted as directed herein by the undersigned Stockholder. If no direction is made, this proxy will be voted “FOR ALL NOMINEES” in Proposal 1 and “FOR” Proposal 2.

Signature of Stockholder Date: Signature of Stockholder Date:

Note: Please title as such. sign exactly If the signer as your is a name corporation, or names please appear sign on full this corporate Proxy. When name shares by duly are authorized held jointly, officer, each giving holder full should title as sign. such. When If signer signing is a as partnership, executor, please administrator, sign in attorney, partnership trustee name or by guardian, authorized please person. give full