UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 8, 2017

GREENHILL & CO., INC.

(Exact name of registrant as specified in its charter)

Commission File Number: 001-32147

Registrant’s telephone number, including area code: (212) 389-1500

Former name or former address, if changed since last report: NOT APPLICABLE

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under the Exchange Act (17 CFR 240.12b-2).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

On June 8, 2017, Robert T. Blakely, a member of the Board of Directors of Greenhill & Co., Inc. (“Greenhill”), notified Greenhill of his decision to retire, effective July 26, 2017, the date of Greenhill’s 2017 annual meeting of stockholders. Mr. Blakely’s decision to retire and not to seek re-election to our Board of Directors did not involve any disagreement with Greenhill, our management or our Board of Directors. Mr. Blakely also served on Greenhill’s Compensation Committee and Nominating and Governance Committee until June 8, 2017.

On June 8, 2017, our Board of Directors elected John D. Liu, 49, to serve as a member of our Board of Directors and appointed Mr. Liu to serve as a member of our Audit, Compensation and Nominating and Governance Committees effective immediately. Since March 2008, Mr. Liu has been the chief executive officer of Essex Equity Management, a financial services company, and managing partner of Richmond Hill Investments, an investment management firm. Prior to that time, Mr. Liu was employed for 12 years by Greenhill until March 2008 in positions of increasing responsibility, including as chief financial officer from January 2004 to March 2008 and as co-head of U.S. Mergers and Acquisitions from January 2007 to March 2008. Earlier in his career, Mr. Liu worked at Wolfensohn & Co. and was an analyst at Donaldson, Lufkin & Jenrette. Mr. Liu also serves as a member of the Board of Directors of Whirlpool Corporation.

As a result of Mr. Liu’s appointment, Greenhill’s Board of Directors will consist of seven members until the effective date of Mr. Blakely’s retirement on July 26, 2017, after which our Board of Directors will again consist of six members.

Item 9.01.  Financial Statements and Exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

EXHIBIT INDEX

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