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

February 28, 2013

Date of Report (Date of earliest event reported)

Annie’s, Inc.

(Exact name of registrant as specified in its charter)

1610 Fifth Street

Berkeley, CA 94710

(Address of principal executive offices, including zip code)

(510) 558-7500

(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 obligations of the registrant under any of the following provisions:

In connection with a proposed underwritten offering (the “Offering”) of 3.5 million shares (the “Offering Shares”) of common stock of the Company, par value $0.001 per share (the “Common Stock”) to be sold exclusively by Solera Partners, L.P. and SCI Partners, L.P. (together, the “Solera Funds”), on February 28, 2013, Annie’s, Inc. (the “Company” or “Annie’s”) entered into an agreement (the “Repurchase Agreement”) with the Solera Funds to repurchase 500,000 shares of Common Stock, concurrently with the closing of the Offering, directly from the Solera Funds at in a private non-underwritten transaction at a price per share equal to the price at which the Solera Funds will sell the Offering Shares to the underwriters in the Offering (the “Repurchase”). The Company intends to fund the Repurchase primarily from borrowings under its credit facility and also from cash on hand. The closing of the Repurchase is contingent on the closing of the Offering and the satisfaction of certain other customary conditions.

The foregoing summary of the material terms of the Repurchase Agreement is qualified in its entirety by the Repurchase Agreement, which is attached as Exhibit 10.1 to this Current Report on Form 8-K and incorporated herein by reference.

Resignation of Director

David A. Behnke delivered notice of his resignation as a director of the Company effective as of February 28, 2013. Mr. Behnke served as Chairperson of the Compensation Committee of the Board of Directors of the Company (the “Board”) and served as a member of the Audit Committee of the Board.

The resignation was not the result of any disagreement with the Company on any matter relating to the Company’s operations, policies or practices.

Appointment of Director

On February 28, 2013 the Board appointed Lawrence (Larry) S. Peiros to serve as a Director of the Company. Mr. Peiros was named as the Chairperson of the Compensation Committee of the Board and will also serve as a member of the Nominating/Corporate Governance Committee of the Board.

There are no arrangements or understandings between Mr. Peiros and any other persons pursuant to which he was selected as a director and he has no direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K.

A press release announcing the resignation of Mr. Behnke and election of Mr. Peiros was issued on March 1, 2013, a copy of which is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

On March 1, 2013, the Company issued a press release announcing (i) that it filed a registration statement on Form S-1 with respect to the Offering, (ii) the Repurchase and (iii) its intent to enter into an amendment to its credit facility to increase its bank line of credit from $20 million to $40 million. A copy of this press release is attached as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference.

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.

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