Institutional Ownership
Acadia Pharmaceuticals Inc
CUSIP 004225108COMACADQ1 2026
13D / 13G Filings
27
Schedule 13D/13G on record
Beneficial Filers
9
Distinct reporting persons
Largest Stake
26.5%
Max % of class reported
Institutional Holders
332
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
27 filings · latest Feb 26, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 26, 2026 | Baker Bros. Advisors LP | 13D/A | 25.4% | — | SEC |
| 2 | Nov 14, 2025 | Rtw Investments, LP | 13G/A | 4.2% | 7.14M | SEC |
| 3 | Feb 14, 2025 | Rtw Investments, LP | 13G/A | 5.2% | 8.71M | SEC |
| 4 | Feb 7, 2025 | Blackrock, Inc. | 13G/A | 11.9% | 19.88M | SEC |
| 5 | Nov 14, 2024 | Rtw Investments, LP | 13G/A | 8.3% | 13.71M | SEC |
| 6 | Feb 14, 2024 | Rtw Investments, LP | 13G | 6.9% | 11.25M | SEC |
| 7 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 8.2% | 13.40M | SEC |
| 8 | Feb 9, 2024 | Fmr LLC | 13G/A | 3.2% | — | SEC |
| 9 | Jan 26, 2024 | Blackrock Inc. | 13G/A | 6.9% | 11.41M | SEC |
| 10 | May 24, 2023 | Baker Bros. Advisors LP | 13D/A | 26.5% | 43.08M | SEC |
17 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Acadia Pharmaceuticals Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Baker Bros. Advisors LP | 42.90M | $954.88M |
| 2 | Blackrock, Inc. | 21.55M | $479.72M |
| 3 | State Street Corp | 8.33M | $185.49M |
| 4 | Rtw Investments, LP | 7.14M | $159.04M |
| 5 | Geode Capital Management, LLC | 3.46M | $77.14M |
| 6 | First Trust Advisors LP | 3.34M | $74.43M |
| 7 | Dimensional Fund Advisors LP | 3.16M | $70.22M |
| 8 | Palo Alto Investors LP | 2.87M | $63.95M |
| 9 | Point72 Asset Management, L.P. | 2.58M | $57.38M |
| 10 | Braidwell LP | 2.47M | $55.01M |