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) August 12, 2014

Sprouts Farmers Market, Inc.

(Exact name of registrant as specified in its charter)

11811 N. Tatum Boulevard, Suite 2400

Phoenix, Arizona 85028

(Address of principal executive offices and zip code)

(480) 814-8016

(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):

On August 12, 2014, Sprouts Farmers Market, Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Goldman, Sachs & Co. and Credit Suisse Securities (USA) LLC, as representatives of the several underwriters named in Schedule I thereto (collectively, the “Underwriters”), and the selling stockholders named in Schedule II thereto (collectively, the “Selling Stockholders”), relating to the public offering of 15,000,000 shares of the Company’s common stock, par value $0.001 per share (the “Offering”), by the Selling Stockholders at a public offering price of $30.00 per share. Pursuant to the Underwriting Agreement, the Underwriters have a 30-day option to purchase up to an additional 2,250,000 shares of the Company’s stock from the Selling Stockholders.

The Underwriting Agreement includes customary representations, warranties and covenants by the Company and the Selling Stockholders. It also provides for customary indemnification by each of the Company, the Selling Stockholders and the Underwriters against certain liabilities and customary contribution provisions in respect of those liabilities. The foregoing description of the material terms of the Underwriting Agreement is qualified in its entirety by reference to the full text of the Underwriting Agreement, which is filed herewith as Exhibit 1.1 and is incorporated herein by reference.

The Company will not receive any proceeds from the sale of shares by the Selling Stockholders. The Company will pay the expenses, other than underwriting discounts, associated with the sale of shares by the Selling Stockholders. The Offering is being made pursuant to the Company’s effective shelf registration statement on Form S-3 (File
No. 333-198039) filed with the Securities and Exchange Commission on August 11, 2014, and the related prospectus supplement and accompanying prospectus. The Offering is expected to close on or about August 18, 2014, subject to customary closing conditions.

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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