Pursuant to Rule 416 under the Securities Act of 1933, as amended (the “Securities Act”), this Registration Statement shall also cover any additional shares of common stock that become issuable under the Acadia Healthcare Company, Inc. Amended and Restated Incentive Compensation Plan (the “Incentive Plan”), by reason of any stock dividend, stock split, recapitalization, merger, consolidation or reorganization of or by us that results in an increase in the number of shares of our outstanding common stock.

(2)

Estimated solely for the purpose of determining the registration fee pursuant to Rule 457(c) and Rule 457(h) under the Securities Act, based upon the average of the high and low sale prices per share of Common Stock, as reported on The NASDAQ Global Select Market on May 23, 2025 (which is within five business days prior to the date of filing of this Registration Statement).

(3)

Calculated at a rate of $153.10 per $1,000,000 of the proposed maximum aggregate offering price.