ACADIA Pharmaceuticals Inc. (ACAD) Insider Trading
Over the last 3 months, ACAD insiders made 0 open-market buys and 6 sales, a net sale of -$1.3M (SEC Form 4). Over the last 6 months, 250 institutions increased and 246 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
6
Net (3m)
-$1.3M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price +34.8%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 7, 2026 | Schneyer Mark C.officer: EVP, CHIEF FINANCIAL OFFICER | Option | 5,849 | $17.84 |
| Aug 7, 2026 | Schneyer Mark C.officer: EVP, CHIEF FINANCIAL OFFICER | Sell | 9,292 | $29.34 |
| Aug 7, 2026 | Schneyer Mark C.officer: EVP, CHIEF FINANCIAL OFFICER | Option | 14,292 | $17.84 |
| Aug 7, 2026 | Schneyer Mark C.officer: EVP, CHIEF FINANCIAL OFFICER | Sell | 5,000 | $29.00 |
| Aug 7, 2026 | Schneyer Mark C.officer: EVP, CHIEF FINANCIAL OFFICER | Sell | 5,849 | $29.00 |
| Jul 31, 2026 | Thompson Elizabeth H.Z.officer: EVP, Head of Research & Dev | Sell | 50 | $26.17 |
| Jul 31, 2026 | Thompson Elizabeth H.Z.officer: EVP, Head of Research & Dev | Sell | 16,508 | $26.13 |
| Jul 31, 2026 | Thompson Elizabeth H.Z.officer: EVP, Head of Research & Dev | Option | 32,272 | — |
| Jun 29, 2026 | Kihara Jamesofficer: PRINCIPAL ACCOUNTING OFFICER | Sell | 11,421 | $26.08 |
| Jun 2, 2026 | BAKER BROS. ADVISORS LPdirector, 10 percent owner: | Grant | 18,622 | — |
| Jun 2, 2026 | BAKER BROS. ADVISORS LPdirector, 10 percent owner: | Grant | 32,008 | $21.66 |
| Jun 1, 2026 | Brege Lauradirector | Option | 8,107 | — |
| Jun 1, 2026 | Poole Jonathandirector | Grant | 16,004 | $21.66 |
| Jun 1, 2026 | HARRIGAN EDMUNDdirector | Option | 8,107 | — |
| Jun 1, 2026 | Daly James Mdirector | Grant | 9,311 | — |
| Jun 1, 2026 | GAROFALO ELIZABETH A.director | Grant | 16,004 | $21.66 |
| Jun 1, 2026 | Ndu Adoradirector | Grant | 16,004 | $21.66 |
| Jun 1, 2026 | Ndu Adoradirector | Option | 8,107 | — |
| Jun 1, 2026 | Brege Lauradirector | Grant | 16,004 | $21.66 |
| Jun 1, 2026 | Poole Jonathandirector | Grant | 9,311 | — |
| Jun 1, 2026 | Ndu Adoradirector | Grant | 9,311 | — |
| Jun 1, 2026 | GAROFALO ELIZABETH A.director | Option | 8,107 | — |
| Jun 1, 2026 | Brege Lauradirector | Grant | 9,311 | — |
| Jun 1, 2026 | Poole Jonathandirector | Option | 2,010 | — |
| Jun 1, 2026 | HARRIGAN EDMUNDdirector | Grant | 16,004 | $21.66 |
| Jun 1, 2026 | Daly James Mdirector | Grant | 16,004 | $21.66 |
| Jun 1, 2026 | HARRIGAN EDMUNDdirector | Grant | 9,311 | — |
| Jun 1, 2026 | Daly James Mdirector | Option | 8,107 | — |
| Jun 1, 2026 | GAROFALO ELIZABETH A.director | Grant | 9,311 | — |
| May 27, 2026 | Kihara Jamesofficer: PRINCIPAL ACCOUNTING OFFICER | Sell | 5,401 | $21.18 |
Source: ACAD SEC Form 4 filings, latest Aug 7, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ACAD positions over the last 6 months (SEC Form 13F).
Increased
250
New positions
93
Reduced
246
Sold out
37
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BAKER BROS. ADVISORS LP | Increased | 42.9M | Aug 14, 2026 |
| BAKER BROS. ADVISORS LP | Unchanged | 42.9M | May 15, 2026 |
| BlackRock, Inc. | Increased | 22.5M | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 21.6M | May 13, 2026 |
| STATE STREET CORP | Increased | 9.1M | Aug 7, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 8.8M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 8.7M | May 8, 2026 |
| STATE STREET CORP | Increased | 8.3M | May 15, 2026 |
| RTW INVESTMENTS, LP | Unchanged | 7.1M | May 15, 2026 |
| RTW INVESTMENTS, LP | Unchanged | 7.1M | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 5.8M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 5.7M | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 3.7M | Aug 11, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 3.5M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 3.4M | Aug 12, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.