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): October 21, 2013

THE ACTIVE NETWORK, INC.

(Exact name of registrant as specified in its charter)

(858) 964-3800

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former 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):

Item 8.01 Other Events.

As previously reported, on September 28, 2013, The Active Network, Inc., a Delaware corporation (the “ Company”), Athlaction Holdings, LLC, a Delaware limited liability company (“Parent”), and Athlaction Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Parent (“Purchaser”), entered into an Agreement and Plan of Merger. Parent and Purchaser are beneficially owned by affiliates of Vista Equity Partners Fund III, L.P. and Vista Equity Partners Fund IV, L.P. (collectively, “Vista”).

At 11:59 p.m. Eastern time on October 21, 2013, the required waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and the rules and regulations thereunder (the “HSR Act”), in connection with the tender offer (the “Offer”) to acquire all of the outstanding shares of common stock of the Company, $0.001 par value per share (the “Shares”), at a purchase price of $14.50 per Share in cash, net to the seller in cash, without interest, subject to any applicable withholding taxes, if any, and the merger of Purchaser with and into the Company (the “Merger”), expired. Accordingly, the condition to the Offer and the Merger that any waiting period under the HSR Act shall have expired or been terminated has been satisfied.

Notice to Investors

This Current Report on Form 8-K is not recommendation, an offer to purchase or a solicitation of an offer to sell shares of the Company’s common stock. Vista has filed a tender offer statement on Schedule TO, including an offer to purchase, a letter of transmittal and related documents, with the United States Securities and Exchange Commission (the “SEC”), and the Company has filed a Solicitation/Recommendation Statement on Schedule 14D-9 with the SEC. The offer to purchase shares of the Company’s common stock will only be made pursuant to the offer to purchase, the letter of transmittal and related documents filed as a part of the Schedule TO. YOU ARE ADVISED TO READ THE SCHEDULE TO (INCLUDING THE OFFER TO PURCHASE, THE RELATED LETTER OF TRANSMITTAL AND OTHER OFFER DOCUMENTS) AND THE SCHEDULE 14D-9, AS EACH MAY BE AMENDED OR SUPPLEMENTED FROM TIME TO TIME, AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC WHEN THEY BECOME AVAILABLE, BEFORE MAKING ANY DECISION WITH RESPECT TO THE TENDER OFFER BECAUSE THESE DOCUMENTS CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION AND THE PARTIES THERETO.

Investors and stockholders may obtain free copies of the Schedule TO and Schedule 14D-9, as each may be amended or supplemented from time to time, and other documents filed by the parties (when available), at the SEC’s web site at www.sec.gov or by contacting the Company’s investor relations department at 10182 Telesis Court, San Diego, California 92121, by telephone at (858) 964-3834 or by email at PR@ACTIVEnetwork.com.

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.