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

May 20, 2014

Date of Report (Date of earliest event reported)

WEBMD HEALTH CORP.

(Exact name of registrant as specified in its charter)

111 Eighth Avenue

New York, New York 10011

(Address of principal executive offices, including zip code)

(212) 624-3700

(Registrant’s telephone number, including area code)

(Former name or address, if changed since last report)

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):

WebMD Health Corp. will hold its 2014 Annual Meeting of Stockholders on October 1, 2014 at the Ritz Carlton New York — Battery Park, Two West Street, New York, NY 10004. The record date for determining the stockholders entitled to vote at WebMD’s 2014 Annual Meeting is the close of business on August 6, 2014.

Proposals that WebMD’s stockholders intend to present at the 2014 Annual Meeting must be received by WebMD’s Corporate Secretary (at the address provided below) no later than the close of business on May 27, 2014 in order that they may be considered for possible inclusion in WebMD’s proxy statement and form of proxy for that meeting pursuant to Rule 14a-8 under the Securities Exchange Act of 1934. In addition, WebMD’s Amended and Restated By-laws establish an advance notice procedure with regard to director nominations and proposals by stockholders intended to be presented at an annual meeting, but not included in WebMD’s proxy statement. For these nominations or other business to be properly brought before the 2014 Annual Meeting by a stockholder, the stockholder must provide written notice delivered to the Secretary of WebMD by the close of business on August 4, 2014, which notice must contain specified information concerning the matters to be brought before the meeting and concerning the stockholder proposing these matters. All notices of proposals by stockholders, whether or not intended to be included in WebMD’s proxy materials, should be sent to: Douglas W. Wamsley, Corporate Secretary, WebMD Health Corp., 111 Eighth Avenue, New York, New York 10011.

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SIGNATURE

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 thereunto duly authorized.

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