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): May 22, 2013

Constant Contact, Inc.

(Exact Name of Registrant as Specified in its Charter)

Registrant’s telephone number, including area code: (781) 472-8100

(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 5.07. Submission of Matters to a Vote of Security Holders

At the annual meeting of stockholders of Constant Contact, Inc. (the “Company”) held on May 22, 2013 (the “2013 Annual Meeting”), there were 26,742,888 shares of the Company’s common stock represented in person or by proxy, constituting 87.11% of the shares of the Company’s common stock issued and outstanding and entitled to vote at the 2013 Annual Meeting, and the Company’s stockholders voted upon the following proposals:

1. The following nominees were elected to the Company’s board of directors as Class III directors for terms expiring at the 2016 annual meeting of stockholders.

Following the annual meeting, Thomas Anderson, Jay Herratti, and Sharon T. Rowlands, having terms expiring in 2014, and John Campbell and Daniel T. H. Nye, having terms expiring in 2015, continue as directors of the Company.

2. The amendment to the 2007 Employee Stock Purchase Plan was approved.

3. The selection of PricewaterhouseCoopers LLP as the independent registered public accounting firm for the Company for the fiscal year ending December 31, 2013 was ratified.

4. A non-binding, advisory vote on the compensation of the Company’s named executive officers was approved.

Item 8.01. Other Events.

On May 21, 2013, while it was permissible under the applicable securities laws for executive officers of the Company to purchase and sell securities of the Company, the following executive officer entered into a binding trading plan (the “10b5-1 Plan”):

Pursuant to the 10b5-1 Plan, certain shares of the Company’s common stock held by Mr. Nault will be sold on a periodic basis without further direction from him in accordance with the terms and conditions set forth in the 10b5-1 Plan, which includes minimum sale price thresholds. Under the Company’s insider trading policy, trades will not occur under the 10b5-1 Plan until at least 90 days after the execution date of the 10b5-1 Plan. The 10b5-1 Plan is designed to comply with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, and the Company’s insider trading policy. Transactions made pursuant to the 10b5-1 Plan will be disclosed publicly through Form 144 and Form 4 filings with the Securities and Exchange Commission. Except as may be required by law, the Company does not undertake to report on specific Rule 10b5-1 plans of the Company’s officers or directors, nor to report modifications or terminations of such plans.

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 hereunto duly authorized.