ACADIA HEALTHCARE CO INC (ACHC) Stock Institutional Trading Activity


ACADIA HEALTHCARE CO INC (ACHC) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 2025), investors with some of the largest reported share count changes include Sequoia Financial Advisors, Viking Global Investors, First Eagle U.S. Value, Durable Capital Partners, and Renaissance Technologies LLC. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2022First Eagle U.S. ValueBuy7,94630,085$2,035
Q2 2022Durable Capital PartnersBuy560,841560,841$37,930
Q2 2022Viking Global InvestorsBuy1,348,0433,478,476$235,249
Q1 2022First Eagle U.S. ValueBuy6,22322,139$1,451
Q1 2022Renaissance Technologies LLCBuy29,20072,900$4,777
Q1 2022Viking Global InvestorsBuy39,8572,130,433$139,607
Q4 2021First Eagle U.S. ValueBuy9,50015,916$966
Q4 2021Renaissance Technologies LLCBuy34,90043,700$2,653
Q4 2021Viking Global InvestorsSell-12,1822,090,576$126,898
Q3 2021First Eagle U.S. ValueBuy6,0006,416$409
Q3 2021Viking Global InvestorsBuy42,6332,102,758$134,114
Q2 2021First Eagle U.S. ValueBuy416416$26
Q2 2021Renaissance Technologies LLCSell-120,5008,800$552
Q2 2021Viking Global InvestorsBuy408,1352,060,125$129,273
Q1 2021Renaissance Technologies LLCSell-20,600129,300$7,388
Q1 2021Viking Global InvestorsBuy1,310,1911,651,990$94,395
Q4 2020Renaissance Technologies LLCBuy142,600149,900$7,534
Q4 2020Viking Global InvestorsSell-414,031341,799$17,179
Q3 2020Renaissance Technologies LLCSell-267,9007,300$215
Q1 2017Renaissance Technologies LLCSell-695,300275,200$11,999
Q1 2017Viking Global InvestorsBuy755,830755,830$32,954
Q4 2016Renaissance Technologies LLCBuy905,185970,500$32,124
Q2 2016Renaissance Technologies LLCSell-215,28565,315$3,618
Q1 2016Renaissance Technologies LLCBuy57,500280,600$15,464
Q4 2015Renaissance Technologies LLCBuy158,300223,100$13,935
Q1 2015Renaissance Technologies LLCBuy36,00064,800$4,640
Q4 2014Renaissance Technologies LLCSell-26,50028,800$1,763
Q2 2014Renaissance Technologies LLCSell-46,78255,300$2,516
Q1 2014Renaissance Technologies LLCBuy102,082102,082$4,606

Frequently asked questions about ACHC activity

  • Which institutional owners are buying ACHC?

    Institutional owners buying ACHC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ACHC activity?

    "Buy" means an investor increased their reported position in ACHC compared to the prior reporting period. This reflects growing exposure to ACADIA HEALTHCARE CO INC (ACHC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ACHC increasing?

    Institutional interest in ACHC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.