Acadia Healthcare Company, Inc.
US ˙ NasdaqGS ˙ US00404A1097

SecurityACHC / Acadia Healthcare Company, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership159,682 shares
Latest Disclosed Value $ 3,734,962
Trexquant Investment LP reports 80.62% decrease in ownership of ACHC / Acadia Healthcare Company, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 159,682 shares of Acadia Healthcare Company, Inc. (US:ACHC) valued at $3,734,962 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 824,089 shares of Acadia Healthcare Company, Inc.. This represents a change in shares of -80.62% during the quarter. The current value of the position is $3,909,015 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 159,682 -664,407 -80.62 3,735 -68.07 0.0268
2026-02-17 2025-12-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 824,089 119,161 16.90 11,694 -33.01 0.1042
2025-11-14 2025-09-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 704,928 222,917 46.25 17,454 59.60 0.1797
2025-08-12 2025-06-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 482,011 482,011 10,937 0.1234
2023-08-11 2023-06-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 0 -40,278 -100.00 0 -100.00
2023-05-15 2023-03-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 40,278 -10,901 -21.30 2,910 -30.93 0.0799
2023-02-13 2022-12-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 51,179 -13,929 -21.39 4,213 -17.23 0.1195
2022-11-14 2022-09-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 65,108 65,108 5,090 0.1790
2021-11-12 2021-09-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 0 -5,370 -100.00 0 -100.00
2021-08-12 2021-06-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 5,370 5,370 337 0.0284
2020-08-07 2020-06-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 0 -46,599 -100.00 0 -100.00
2020-05-08 2020-03-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 46,599 46,599 855 0.0620
2019-05-13 2019-03-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 0 -74,557 -100.00 0 -100.00
2019-02-13 2018-12-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 74,557 53,743 258.21 1,917 161.53 0.1198
2018-11-09 2018-09-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 20,814 2,219 11.93 733 -3.68 0.0551
2018-08-07 2018-06-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 18,595 18,595 -10.66 761 3.82 0.0527
2017-05-08 2017-03-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 0 -12,311 -100.00 0 -100.00
2017-02-10 2016-12-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 12,311 -589 -4.57 407 -36.31 0.0644
2016-11-10 2016-09-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 12,900 12,900 4.78 639 57.00 0.1427
2016-05-11 2016-03-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 0 -27,300 -100.00 0 -100.00
2016-02-10 2015-12-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 27,300 13,176 93.29 1,705 82.35 0.1502
2015-11-02 2015-09-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 14,124 5,824 70.17 935 43.85 0.0805
2015-08-12 2015-06-30 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 8,300 -4,300 -34.13 650 -27.94 0.0730
2015-05-13 2015-03-31 13F ACADIA HEALTHCARE COMPANY IN COM 00404A109 12,600 12,600 902 0.0921
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.