Acadia Healthcare Stock Down 60% as One Investor Slashes Stake to Less Than 1% of Assets

On February 17, 2026, Engine Capital Management reported selling 2,256,741 shares of Acadia Healthcare (NASDAQ:ACHC), an estimated $42.70 million trade based on quarterly average pricing. What happened According to a filing with the Securities and Exchange Commission dated February 17, 2026, Engine Capital Management reduced its position in Acadia Healthcare by 2,256,741 shares. The estimated transaction value was $42.70 million, calculated using the average closing price during the fourth quarter of 202 ...