Ranked by reported Q1 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. | 11.7M | $273.3M | +2.5% | 12.698% | 0.00% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 9.1M | $212.2M | -22.9% | 9.858% | 0.04% |
| 3 | FMR LLC | 6.9M | $160.6M | +26.8% | 7.462% | 0.01% |
| 4 | Khrom Capital Management LLC | 5.2M | $121.5M | -29.3% | 5.644% | 11.11% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1M | $118.4M | — | 5.500% | 0.01% |
| 6 | DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 4.5M | $105.7M | 0.0% | 4.911% | 1.25% |
| 7 | DME Capital Management, LP | 4.5M | $105.7M | +9.6% | 4.909% | 3.31% |
| 8 | MORGAN STANLEY | 4.5M | $105.0M | +193.8% | 4.880% | 0.01% |
| 9 | ABRAMS BISON INVESTMENTS, LLC | 4.4M | $102.4M | 0.0% | 4.759% | 4.43% |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | 4.2M | $97.2M | — | 4.514% | 0.00% |
| 11 | CARRONADE CAPITAL MANAGEMENT, LP | 3.8M | $89.8M | — | 4.169% | 5.83% |
| 12 | Jefferies Financial Group Inc. | 3.6M | $84.5M | +6.9% | 3.925% | 0.58% |
| 13 | STATE STREET CORP | 3.2M | $75.3M | -2.3% | 3.497% | 0.00% |
| 14 | CITADEL ADVISORS LLC | 2.9M | $68.0M | +102.3% | 3.157% | 0.03% |
| 15 | UBS Group AG | 2.8M | $66.3M | +43.3% | 3.079% | 0.01% |
| 16 | DIMENSIONAL FUND ADVISORS LP | 2.6M | $60.4M | -7.3% | 2.805% | 0.01% |
| 17 | MAK CAPITAL ONE LLC | 2.4M | $56.9M | — | 2.643% | 8.38% |
| 18 | CITIGROUP INC | 2.4M | $55.0M | -8.6% | 2.556% | 0.02% |
| 19 | GOLDMAN SACHS GROUP INC | 2.2M | $52.4M | -52.6% | 2.434% | 0.01% |
| 20 | Neuberger Berman Group LLC | 2.0M | $45.8M | +72.4% | 2.131% | 0.03% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.9M | $44.5M | +33.5% | 2.066% | 0.01% |
| 22 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 1.8M | $43.0M | — | 1.998% | 0.43% |
| 23 | P2 Capital Partners, LLC | 1.8M | $41.5M | — | 1.928% | 19.77% |
| 24 | FARALLON CAPITAL MANAGEMENT LLC | 1.7M | $40.6M | — | 1.887% | 0.26% |
| 25 | FIRST TRUST ADVISORS LP | 1.7M | $39.5M | +73.0% | 1.836% | 0.03% |
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 Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new ACHC position in Q1 2026
Institutions that fully closed their ACHC position in Q1 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 |
|---|---|---|---|---|---|---|
| Q1 2026 | 290 | +14% | 137.39% | +60.61 pp | $3.11B | +79% |
| Q4 2025 | 254 | 3.8% | 76.78% | 46.71 pp | $1.74B | 38% |
| Q3 2025 | 264 | 8.7% | 123.49% | +20.90 pp | $2.80B | +20% |
| Q2 2025 | 289 | +1.0% | 102.59% | 26.19 pp | $2.32B | 20% |
| Q1 2025 | 286 | 4.3% | 128.78% | 26.86 pp | $2.92B | 17% |
| Q4 2024 | 299 | 0.3% | 155.64% | 44.35 pp | $3.52B | 33% |
| Q3 2024 | 300 | +0.3% | 199.99% | +0.00 pp | $5.29B | 28% |
| Q2 2024 | 299 | — | 199.99% | — | $7.33B | — |
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 Q1 2026 13F filings, institutional ownership of Acadia Healthcare Company, Inc. stands at 137.4%, held across 290 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of ACHC, with approximately 11,686,389 shares worth $0.27B as of Q1 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 67 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
90 institutions opened new positions in ACHC during Q1 2026, while 54 fully exited. 159 added to existing positions and 38 trimmed.
ACHC institutional ownership rose by 60.61 percentage points quarter-over-quarter, with a net change of +36 holders.
The top 10 institutions account for 45.1% of all reported 13F value in ACHC, and the top 25 account for 72.8%.
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