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 20, 2016

VIEWRAY, INC.

(Exact name of registrant as specified in its charter)

2 Thermo Fisher Way

Oakwood Village, Ohio 44146

(Address of principal executive offices, including zip code)

(440) 703-3210

(Registrant’s telephone number, including area code)

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 (see General Instruction A.2. below):

¨Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

On June 20, 2016, ViewRay, Inc. (the “Company”) held its Annual Meeting of Stockholders (the “Annual Meeting”) at the Company’s offices located at 815 E. Middlefield Road, Mountain View, California 94043. Only stockholders of record at the close of business on April 27, 2016, the record date for the Annual Meeting, were entitled to vote at the Annual Meeting. As of the record date, 38,230,459 shares of the Company’s common stock were outstanding and entitled to vote at the Annual Meeting. At the Annual Meeting, 33,222,234 shares of the Company’s common stock were voted in person or by proxy for the two proposals set forth below, each of which is described in the Company’s Definitive Proxy Statement on Schedule 14A filed with the U.S. Securities and Exchange Commission on April 29, 2016.

Set forth below, with respect to each such matter, are the number of votes cast for or against, the number of votes withheld and the number of broker non-votes.

Proposal No. 1 – Election of Directors

The Company’s stockholders elected Chris A. Raanes, Aditya Puri and Henry A. McKinnell, Jr., Ph.D., to serve as Class I directors of the Company until the 2019 Annual Meeting of Stockholders or until their successors are elected.

Proposal No. 2 – Ratification of Selection of Independent Registered Accounting Firm

The Company’s stockholders ratified the selection, by the Audit Committee of the Board of Directors, of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the Company’s fiscal year ending December 31, 2016.

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.

VIEWRAY, INC.