Key facts
- · Holder: Dimensional Fund Advisors LP · Percent: 5% · SCHEDULE 13G
- · Holder: Eric Khrom · Percent: 0.72% · SCHEDULE 13G/A
- · Holder: Wellington Management Group LLP · Percent: 6.2% · SCHEDULE 13G/A
- · Holder: Fmr LLC · Percent: 5.5% · SCHEDULE 13G/A
- · Holder: BlackRock, Inc. · Percent: 15% · SCHEDULE 13G/A
Acadia Healthcare Co Inc has 21 Schedule 13D or 13G filings on record since 2025-08-12. 6 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| BlackRock, Inc. | 15% | 13,831,925 | SCHEDULE 13G/A, 2026-07-27 | 2026-06-30 |
| Wellington Management Group LLP | 6.2% | 5,726,246 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 |
| Vanguard Portfolio Management | 5.51% | 5,079,563 | SCHEDULE 13G, 2026-04-28 | 2026-03-31 |
| Fmr LLC | 5.5% | 5,015,727 | SCHEDULE 13G/A, 2026-08-06 | 2026-06-30 |
| Vanguard Capital Management | 5.25% | 4,838,637 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| Dimensional Fund Advisors LP | 5% | 4,698,457 | SCHEDULE 13G, 2026-10-08 | 2026-09-30 |
| The Goldman Sachs Group, Inc. | 1.6% | 1,464,126 | SCHEDULE 13G/A, 2026-05-11 | 2026-03-31 |
| Eric Khrom | 0.72% | 653,914 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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What the Full Report on Acadia Healthcare Co Inc covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-12 | Wellington Management Group LLP | 9.2% | SCHEDULE 13G/A |
| 2025-10-01 | Khrom Investments Fund, LP | 5.5% | SCHEDULE 13D |
| 2025-10-02 | BlackRock, Inc. | 11.2% | SCHEDULE 13G/A |
| 2025-10-06 | The Vanguard Group | 10.19% | SCHEDULE 13G/A |
| 2025-10-06 | Wellington Management Group LLP | 10.2% | SCHEDULE 13G/A |
| 2025-11-24 | Khrom Investments Fund, LP | 7.74% | SCHEDULE 13D/A |
| 2026-01-23 | Khrom Investments Fund, LP | 8.81% | SCHEDULE 13D/A |
| 2026-02-10 | Wellington Management Group LLP | 12.8% | SCHEDULE 13G/A |
| 2026-02-12 | The Goldman Sachs Group, Inc. | 5.1% | SCHEDULE 13G |
| 2026-03-11 | Eric Khrom | 8.09% | SCHEDULE 13G |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-28 | Vanguard Portfolio Management | 5.51% | SCHEDULE 13G |
| 2026-04-29 | Vanguard Capital Management | 5.25% | SCHEDULE 13G |
| 2026-05-11 | The Goldman Sachs Group, Inc. | 1.6% | SCHEDULE 13G/A |
| 2026-05-15 | Wellington Management Group LLP | 9.9% | SCHEDULE 13G/A |
| 2026-05-15 | Eric Khrom | 5.66% | SCHEDULE 13G/A |
| 2026-07-27 | BlackRock, Inc. | 15% | SCHEDULE 13G/A |
| 2026-08-06 | Fmr LLC | 5.5% | SCHEDULE 13G/A |
| 2026-08-13 | Wellington Management Group LLP | 6.2% | SCHEDULE 13G/A |
| 2026-08-14 | Eric Khrom | 0.72% | SCHEDULE 13G/A |
| 2026-10-08 | Dimensional Fund Advisors LP | 5% | SCHEDULE 13G |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.