ACADIA Pharmaceuticals Inc.
ACADIA Pharmaceuticals Inc. (ACAD) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ACAD · as of Mar 31, 2025
Ownership Breakdown
336
Institutional Holders
▲ 32 vs Q4
$2.87B
Total Inst. Value
▼ $114.17M vs Q4
171.24M
Shares Outstanding
freeFloat 98.66%
173.05M
13F Shares Held
▲ 10.17M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ACAD largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BAKER BROS. ADVISORS LP pharmaceutical preparations | 42.88M | 25.70% | 25.70% | $712.20B | May 15, 2025 | — held |
BLACKROCK, INC. pharmaceutical preparations | 21.37M | 12.81% | 12.81% | $354.90B | May 2, 2025 | ▲ 8.64M |
VANGUARD GROUP INC pharmaceutical preparations | 15.20M | 9.11% | 9.11% | $252.53B | May 9, 2025 | ▲ 1.26M |
RTW INVESTMENTS, LP pharmaceutical preparations | 8.54M | 5.12% | 5.12% | $141.85B | May 15, 2025 | ▼ 165.4K |
STATE STREET CORP pharmaceutical preparations | 6.99M | 4.19% | 4.19% | $116.16B | May 15, 2025 | ▲ 2.47M |
MORGAN STANLEY pharmaceutical preparations | 4.68M | 2.81% | 2.81% | $77.74B | May 15, 2025 | ▼ 2.62M |
POINT72 ASSET MANAGEMENT, L.P. pharmaceutical preparations | 4.65M | 2.79% | 2.79% | $77.20B | Jul 21, 2025 | ▲ 2.42M |
ASSENAGON ASSET MANAGEMENT S.A. pharmaceutical preparations | 3.66M | 2.20% | 2.20% | $60.84B | Apr 15, 2025 | NEW |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 2.95M | 1.77% | 1.77% | $49.09B | May 13, 2025 | ▲ 77.4K |
FRED ALGER MANAGEMENT, LLC pharmaceutical preparations | 2.77M | 1.66% | 1.66% | $46.01B | May 16, 2025 | ▲ 54.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
22
Increased
+20.35M shares4
New Positions
first time holders20
Decreased
−6.53M shares0
Sold Out
fully exitedNet shares change (top 50)
+13.82M
+20.35M / −6.53M
Net new holders
+6
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ACAD insider trading · insider activity
Source: SEC Form 4
4
Buy transactions
9
Sell transactions
0.44
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
BAKER BROS. ADVISORS LP
| May 29, 2026 | Award | 18,622 | — | — | 39.38M | Form 4 ↗ |
BAKER BROS. ADVISORS LP
| May 29, 2026 | Award | 18,622 | — | — | 3.68M | Form 4 ↗ |
BAKER BROS. ADVISORS LP
| May 29, 2026 | Award | 32,008 | $21.66 | $693.3K | 32.0K | Form 4 ↗ |
HARRIGAN EDMUND director | May 29, 2026 | Award | 16,004 | $21.66 | $346.6K | 16.0K | Form 4 ↗ |
HARRIGAN EDMUND director | May 29, 2026 | Award | 9,311 | — | — | 9.3K | Form 4 ↗ |
Ndu Adora director | May 29, 2026 | Award | 16,004 | $21.66 | $346.6K | 16.0K | Form 4 ↗ |
Ndu Adora director | May 29, 2026 | Award | 9,311 | — | — | 9.3K | Form 4 ↗ |
Brege Laura director | May 29, 2026 | Award | 16,004 | $21.66 | $346.6K | 16.0K | Form 4 ↗ |
Brege Laura director | May 29, 2026 | Award | 9,311 | — | — | 9.3K | Form 4 ↗ |
Poole Jonathan director | May 29, 2026 | Award | 16,004 | $21.66 | $346.6K | 16.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
ACADIA Pharmaceuticals Inc. (ACAD) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 1.34%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of ACADIA Pharmaceuticals Inc. is BAKER BROS. ADVISORS LP, holding approximately 42.88 million shares — equal to 25.70% of outstanding shares — as of March 31, 2025.
A total of 336 institutional investors currently hold ACAD stock, with a combined institutional value of approximately $2.87 billion as of the most recent 13F filing period.
Frequently asked questions
ACAD ownershipACADIA Pharmaceuticals Inc. (ACAD) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is BAKER BROS. ADVISORS LP with a 25.70% stake. Company insiders hold 1.34%. Data sourced from SEC Form 13F as of March 31, 2025.