Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in ACHC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 15.0M | $441.7M | +28.0% | 16.066% | 0.01% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 5.7M | $169.1M | -36.9% | 6.151% | 0.03% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4M | $158.6M | +6.1% | 5.767% | 0.01% |
| 4 | FMR LLC | 5.0M | $148.1M | -27.0% | 5.387% | 0.01% |
| 5 | CARRONADE CAPITAL MANAGEMENT, LP | 4.8M | $140.6M | +24.1% | 5.116% | 2.44% |
| 6 | MORGAN STANLEY | 4.5M | $133.9M | +1.0% | 4.870% | 0.01% |
| 7 | DEERFIELD MANAGEMENT COMPANY, L.P. | 4.5M | $133.5M | 0.0% | 4.855% | 1.39% |
| 8 | DME Capital Management, LP | 4.4M | $130.0M | -2.6% | 4.727% | 3.32% |
| 9 | FARALLON CAPITAL MANAGEMENT, L.L.C. | 4.2M | $124.6M | +143.0% | 4.534% | 0.58% |
| 10 | ABRAMS BISON INVESTMENTS, LLC | 4.2M | $123.0M | -4.9% | 4.474% | 6.00% |
| 11 | UBS Group AG | 4.0M | $119.4M | +42.7% | 4.344% | 0.02% |
| 12 | DIMENSIONAL FUND ADVISORS LP | 4.0M | $118.5M | +55.5% | 4.311% | 0.02% |
| 13 | VANGUARD CAPITAL MANAGEMENT LLC | 4.0M | $118.4M | -3.5% | 4.308% | 0.00% |
| 14 | STATE STREET CORP | 3.9M | $114.8M | +20.9% | 4.182% | 0.00% |
| 15 | Jefferies Financial Group Inc. | 3.6M | $106.5M | -0.2% | 3.872% | 0.70% |
| 16 | AMERICAN CENTURY COMPANIES INC | 2.9M | $85.9M | +460.9% | 3.124% | 0.04% |
| 17 | GOLDMAN SACHS GROUP INC | 2.9M | $84.8M | +28.2% | 3.085% | 0.01% |
| 18 | CITADEL ADVISORS LLC | 2.8M | $83.1M | -3.2% | 3.022% | 0.00% |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | 2.5M | $72.8M | +48.4% | 2.648% | 0.00% |
| 20 | MAK CAPITAL ONE LLC | 2.4M | $71.8M | 0.0% | 2.613% | 10.07% |
| 21 | Neuberger Berman Group LLC | 2.2M | $65.8M | +14.1% | 2.404% | 0.02% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.1M | $60.9M | +8.5% | 2.216% | 0.01% |
| 23 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 1.8M | $53.4M | -1.7% | 1.942% | 0.47% |
| 24 | Invesco Ltd. | 1.8M | $52.9M | +207.0% | 1.923% | 0.00% |
| 25 | P2 Capital Partners, LLC | 1.8M | $52.4M | 0.0% | 1.906% | 21.34% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ACHC — a direct measure of their conviction.
Filings activity in ACHC during Q2 2026, grouped by how each filer changed its position.
Institutions that opened a new ACHC position in Q2 2026
Institutions that fully closed their ACHC position in Q2 2026
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 317 | +6.7% | 145.87% | 0.74 pp | $3.97B | +26% |
| Q1 2026 | 297 | +15% | 146.61% | +12.78 pp | $3.14B | +79% |
| Q4 2025 | 258 | 3.7% | 133.83% | +10.05 pp | $1.76B | 37% |
| Q3 2025 | 268 | 7.3% | 123.78% | +10.00 pp | $2.80B | +21% |
| Q2 2025 | 289 | +1.0% | 113.78% | +6.30 pp | $2.32B | 20% |
| Q1 2025 | 286 | 4.3% | 107.48% | +2.77 pp | $2.92B | 17% |
| Q4 2024 | 299 | 0.3% | 104.71% | +4.88 pp | $3.52B | 33% |
| Q3 2024 | 300 | — | 99.83% | — | $5.29B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying ACHC stock.
Based on Q2 2026 13F filings, institutional ownership of Acadia Healthcare Company, Inc. stands at 145.9%, held across 317 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of ACHC, with approximately 14,957,168 shares worth $0.44B as of Q2 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of ACHC, including CITADEL ADVISORS LLC.
Our composite Smart Money Score for ACHC is 46 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
64 institutions opened new positions in ACHC during Q2 2026, while 46 fully exited. 194 added to existing positions and 50 trimmed.
ACHC institutional ownership fell by 0.74 percentage points quarter-over-quarter, with a net change of +20 holders.
The top 10 institutions account for 42.9% of all reported 13F value in ACHC, and the top 25 account for 74.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Acadia Healthcare Company, Inc. (ACHC) Institutional Ownership