Acadia Healthcare Company, Inc.

Item 2.02 Results of Operations and Financial Condition. On July 28, 2026, Acadia Healthcare Company, Inc. (the “Company”) issued a press release announcing, among other things, the Company’s operating and financial results for the second quarter ended June 30, 2026. The press release is furnished herewith as Exhibit 99.1 hereto and is incorporated herein by reference.

Item 7.01. Regulation FD Disclosure. The Company will conduct a conference call to discuss its second quarter 2026 financial results on Wednesday, July 29, 2026 at 9:00 a.m. Eastern Time. In discussing the Company’s results, Company representatives may refer to information described on the slides furnished with this Current Report on Form 8-K as Exhibit 99.2 hereto. The live broadcast of the conference call and the slides will be available on the Company’s website, www.acadiahealthcare.com, by clicking on the “Investors” link. The webcast of the conference call will be available on the Company’s website for thirty days. The information furnished pursuant to Item 2.02 and Item 7.01 of this Current Report on Form 8-K, including the information in Exhibit 99.1 and Exhibit 99.2 hereto, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. Cautionary Note Regarding Forward-Looking Statements This Current Report on Form 8-K and the exhibits furnished herewith contain “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act, including statements related to the Company’s strategy, growth and anticipated operating results for future periods. Generally, words such as “may,” “will,” “should,” “could,” “anticipate,” “expect,” “intend,” “estimate,” “plan,” “continue” and “believe” or the negative of or other variation on these and other similar expressions identify forward-looking statements. These forward-looking statements are made only as of the date of this report. The Company does not undertake to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Forward-looking statements are based on current expectations and involve risks and uncertainties, and the Company’s future results could differ significantly from those expressed or implied by its forward-looking statements. Factors that may cause actual results to differ materially include, without limitation, (i) potential difficulties in successfully integrating the operations of acquired facilities or realizing the expected benefits and synergies of facility expansions, acquisitions, joint ventures and de novo transactions; (ii) the Company’s ability to add beds, expand services, enhance marketing programs and improve efficiencies at its facilities; (iii) potential reductions in payments received by the Company from government and commercial payors, including because of the significant changes to Medicaid financing mechanisms introduced by the One Big Beautiful Bill Act (the “OBBBA”) enacted on July 4, 2025; (iv) the occurrence of patient incidents, governmental investigations, litigation and adverse regulatory actions, which could adversely affect the price of the Company’s common stock and result in substantial payments and incremental regulatory burdens; (v) the risk that the Company may not generate sufficient cash from operations to service its debt and meet its working capital and capital expenditure requirements; (vi) changes in expectations resulting from actuarial and other reviews of the Company’s liability reserves and other aspects of its business; (vii) potential disruptions to the Company’s information technology systems or adverse impacts of a cybersecurity incident; and (viii) potential operating difficulties, including, without limitation, disruption to the U.S. economy and financial markets; reduced admissions and patient volumes, including, without limitation, due to the OBBBA’s introduction of work or community engagement requirements in the Medicaid expansion population; increased costs relating to labor, supply chain and other expenditures; changes in competition and client preferences; and general economic or industry conditions that may prevent the Company from realizing the expected benefits of its business strategies. These factors and others are more fully described in the Company’s periodic reports and other filings with the Securities and Exchange Commission. Description of Business Unless the context otherwise requires, all references herein to “Acadia,” “the Company,” “we,” “us” or “our” mean Acadia Healthcare Company, Inc. and its consolidated subsidiaries. Acadia Healthcare Company, Inc. is a holding company whose direct and indirect subsidiaries own and operate acute inpatient psychiatric facilities, specialty treatment facilities, comprehensive treatment centers, residential treatment centers and facilities providing outpatient behavioral healthcare services to serve the behavioral healthcare and recovery needs of communities throughout the U.S. and Puerto Rico. The terms “facilities,” “centers,” “clinics” and “hospitals” refer to entities owned, operated or managed by subsidiaries of Acadia Healthcare Company, Inc. References herein to “employees” refer to employees of subsidiaries of Acadia Healthcare Company, Inc.