UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): April 11, 2014 (April 7, 2014)

Acadia Healthcare Company, Inc.

(Exact Name of Registrant as Specified in Its Charter)

830 Crescent Centre Drive, Suite 610, Franklin, Tennessee 37067

(Address of Principal Executive Offices)

(615) 861-6000

(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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On April 7, 2014, the compensation committee of the board of directors of Acadia Healthcare Company, Inc. (the “Company”) approved amended and restated employment agreements, effective April 7, 2014, by and among the Company, Acadia Management Company, Inc., a wholly owned subsidiary of the Company (“Management Co.”), and each of Joey A. Jacobs, the Company’s Chairman and Chief Executive Officer, Brent Turner, the Company’s President, Ronald M. Fincher, the Company’s Chief Operating Officer, and Christopher L. Howard, the Company’s Executive Vice President, General Counsel and Secretary. The compensation committee also approved an initial employment agreement, effective April 7, 2014, among the Company, Management Co. and David M. Duckworth, the Company’s Chief Financial Officer (collectively with Messrs. Jacobs, Turner, Fincher and Howard, the “Executives”). The employment agreements with the Executives are referred to herein as the “New Employment Agreements.”

The New Employment Agreements, among other things:

The New Employment Agreements establish the term of the non-competition and non-solicitation period for each Executive following termination of employment at the following: Mr. Jacobs - 36 months; Messrs. Turner, Fincher and Howard - 24 months; and Mr. Duckworth - 12 months.

The foregoing description is qualified in its entirety by reference to the New Employment Agreements, copies of which are attached hereto as Exhibits 10.1 to 10.5 and incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

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.

EXHIBIT INDEX