ACADIA HEALTHCARE CO INC (ACHC) Top Institutional Shareholders
ACADIA HEALTHCARE CO INC (ACHC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $3.06B in ACHC holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ACHC tracked by InsiderSet, reporting ownership valued at approximately $273.34M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $274.63M, representing an estimated gain of +0.47% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% of the total disclosed ACHC value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Wellington Management Group Llp, Fmr Llc, and several other long-term asset managers with concentrated positions in ACADIA HEALTHCARE CO INC (ACHC).
This page ranks the largest institutional ACHC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
291
Total Reported Value
$3.06B
Largest Holder
Blackrock, Inc.
Largest Position
$273.34M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
123
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 11,686,389 | $273,344,638 | $274,630,142 | +$1,285,504 | +0.47% | |
| Wellington Management Group Llp | 0.04% | 9,072,942 | $212,216,113 | $213,214,137 | +$998,024 | +0.47% | |
| Fmr Llc | 0.01% | 6,867,678 | $160,634,995 | $161,390,433 | +$755,438 | +0.47% | |
| Khrom Capital Management Llc | 11.11% | 5,194,625 | $121,502,279 | $122,073,688 | +$571,409 | +0.47% | |
| Vanguard Portfolio Management Llc | 0.01% | 5,061,438 | $118,387,035 | $118,943,793 | +$556,758 | +0.47% | |
| Deerfield Management Company, L.P. | 1.25% | 4,520,000 | $105,722,800 | $106,220,000 | +$497,200 | +0.47% | |
| Greenlight Capital | David Einhorn | 3.31% | 4,518,381 | $105,684,932 | $106,181,954 | +$497,022 | +0.47% |
| Morgan Stanley | 0.01% | 4,491,067 | $105,046,060 | $105,540,075 | +$494,015 | +0.47% | |
| Abrams Bison Investments, Llc | 4.43% | 4,380,000 | $102,448,200 | $102,930,000 | +$481,800 | +0.47% | |
| Vanguard Capital Management Llc | 0.00% | 4,154,801 | $97,180,795 | $97,637,824 | +$457,029 | +0.47% | |
| Jefferies Financial Group Inc. | 1.03% | 3,611,883 | $84,481,944 | $84,879,251 | +$397,307 | +0.47% | |
| State Street Corp | 0.00% | 3,218,751 | $75,286,586 | $75,640,649 | +$354,063 | +0.47% | |
| Ubs Group Ag | 0.01% | 2,833,862 | $66,284,032 | $66,595,757 | +$311,725 | +0.47% | |
| Citadel Advisors Llc | 0.05% | 2,716,425 | $63,537,181 | $63,835,988 | +$298,807 | +0.47% | |
| Dimensional Fund Advisors Lp | 0.01% | 2,581,747 | $60,383,734 | $60,671,055 | +$287,321 | +0.48% | |
| Mak Capital One Llc | 9.42% | 2,432,962 | $56,906,981 | $57,174,607 | +$267,626 | +0.47% | |
| Citigroup Inc | 0.04% | 2,352,318 | $55,020,718 | $55,279,473 | +$258,755 | +0.47% | |
| Carronade Capital Management, Lp | 3.96% | 2,337,236 | $54,668,000 | $54,925,046 | +$257,046 | +0.47% | |
| Goldman Sachs Group Inc | 0.01% | 2,240,428 | $52,403,620 | $52,650,058 | +$246,438 | +0.47% | |
| Neuberger Berman Group Llc | 0.03% | 1,961,384 | $45,831,140 | $46,092,524 | +$261,384 | +0.57% | |
| Charles Schwab Investment Management Inc | 0.01% | 1,900,947 | $44,463,150 | $44,672,255 | +$209,105 | +0.47% | |
| Vaughan Nelson Investment Management, L.P. | 0.43% | 1,839,125 | $43,017,134 | $43,219,438 | +$202,304 | +0.47% | |
| P2 Capital Partners, Llc | 19.77% | 1,774,484 | $41,505,181 | $41,700,374 | +$195,193 | +0.47% | |
| Farallon Capital Management Llc | 0.26% | 1,736,800 | $40,623,752 | $40,814,800 | +$191,048 | +0.47% | |
| First Trust Advisors Lp | 0.03% | 1,689,442 | $39,515,959 | $39,701,887 | +$185,928 | +0.47% | |
| Geode Capital Management, Llc | 0.00% | 1,661,281 | $38,867,878 | $39,040,104 | +$172,226 | +0.44% | |
| Brown Advisory Inc | 0.05% | 1,335,454 | $31,236,266 | $31,383,169 | +$146,903 | +0.47% | |
| Maverick Capital Ltd | 0.36% | 1,314,116 | $30,737,173 | $30,881,726 | +$144,553 | +0.47% | |
| Bank Of America Corp | 0.00% | 1,231,172 | $28,797,113 | $28,932,542 | +$135,429 | +0.47% | |
| Invenomic Capital Management Lp | 1.28% | 1,182,331 | $27,654,722 | $27,784,779 | +$130,057 | +0.47% | |
| Deutsche Bank Ag\ | 0.01% | 1,158,860 | $27,105,735 | $27,233,210 | +$127,475 | +0.47% | |
| Allianz Asset Management Gmbh | 0.02% | 890,278 | $20,823,602 | $20,921,533 | +$97,931 | +0.47% | |
| Rubric Capital Management Lp | 0.24% | 850,000 | $19,881,500 | $19,975,000 | +$93,500 | +0.47% | |
| Hawk Ridge Capital Management Lp | 0.71% | 836,033 | $19,554,812 | $19,646,776 | +$91,964 | +0.47% | |
| Man Group Plc | 0.04% | 794,474 | $18,582,747 | $18,670,139 | +$87,392 | +0.47% | |
| Ameriprise Financial Inc | 0.00% | 746,439 | $17,459,209 | $17,541,317 | +$82,108 | +0.47% | |
| Susquehanna International Group, Llp | 0.02% | 742,902 | $17,376,478 | $17,458,197 | +$81,719 | +0.47% | |
| Northern Trust Corp | 0.00% | 728,941 | $17,049,930 | $17,130,114 | +$80,184 | +0.47% | |
| Cibc Bancorp Usa Inc. | 0.02% | 690,530 | $16,151,497 | $16,227,455 | +$75,958 | +0.47% | |
| Buckley Capital Advisors, Llc | 13.18% | 665,100 | $15,556,689 | $15,629,850 | +$73,161 | +0.47% | |
| Braidwell Lp | 0.50% | 645,900 | $15,107,601 | $15,178,650 | +$71,049 | +0.47% | |
| Freestone Grove Partners Lp | 0.11% | 636,116 | $14,878,753 | $14,948,726 | +$69,973 | +0.47% | |
| Palisade Capital Management, Lp | 0.48% | 613,372 | $14,346,771 | $14,414,242 | +$67,471 | +0.47% | |
| Invesco Ltd. | 0.00% | 583,166 | $13,640,252 | $13,704,401 | +$64,149 | +0.47% | |
| Pfm Health Sciences, Lp | 1.43% | 582,745 | $13,630,406 | $13,694,508 | +$64,102 | +0.47% | |
| Frontier Capital Management Co Llc | 0.14% | 575,243 | $13,454,933 | $13,518,211 | +$63,278 | +0.47% | |
| Vanguard Fiduciary Trust Co | 0.00% | 568,418 | $13,295,297 | $13,357,823 | +$62,526 | +0.47% | |
| Principal Financial Group Inc | 0.01% | 558,486 | $13,062,984 | $13,124,421 | +$61,437 | +0.47% | |
| Point72 Asset Management, L.P. | 0.02% | 536,517 | $12,549,133 | $12,608,150 | +$59,017 | +0.47% | |
| Amundi | 0.00% | 525,084 | $12,281,715 | $12,339,474 | +$57,759 | +0.47% |
Frequently asked questions about ACHC
Who owns the most ACHC stock?
The largest holders of ACHC are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ACADIA HEALTHCARE CO INC (ACHC).
Is ACHC widely held by superinvestors?
Many widely followed stocks like ACHC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ACHC is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.