Acadia Pharmaceuticals's three largest insider shareholders as of September 23, 2026 are Bros. Advisors Lp Baker (Director, 39.38Mn shares), Stephen Davis (Ceo, 186.56K shares), Mark C. Schneyer (Evp, Chief Financial Officer, 67.83K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Bros. Advisors Lp Baker | Director, TenPercentOwner | 0 | 39,384,587 | 39,384,587 | 98.3% | 02 Jun, 2026 |
| 2 | Stephen Davis | Ceo | 186,555 | 0 | 186,555 | 0.5% | 20 Aug, 2024 |
| 3 | Mark C. Schneyer | Evp, Chief Financial Officer | 67,828 | 0 | 67,828 | 0.2% | 06 Aug, 2026 |
| 4 | Brendan Teehan | Evp, Coo, Head Of Commercial | 62,105 | 0 | 62,105 | 0.2% | 19 Nov, 2024 |
| 5 | Srdjan R. Stankovic | President | 61,234 | 0 | 61,234 | 0.2% | 22 Nov, 2022 |
| 6 | Austin D. Kim | Evp,General Counsel, Secretary | 46,901 | 0 | 46,901 | 0.1% | 09 Jan, 2024 |
| 7 | Daniel B Soland | Director | 44,041 | 0 | 44,041 | 0.1% | 02 Jun, 2025 |
| 8 | Edmund Harrigan | Director | 43,148 | 0 | 43,148 | 0.1% | 01 Jun, 2026 |
| 9 | Elizabeth A. Garofalo | Director | 33,489 | 0 | 33,489 | 0.1% | 01 Jun, 2026 |
| 10 | Adora Ndu | Director | 32,908 | 0 | 32,908 | 0.1% | 01 Jun, 2026 |
| 11 | Laura Brege | Director | 23,202 | 0 | 23,202 | 0.1% | 01 Jun, 2026 |
| 12 | Elizabeth H.Z. Thompson | Evp, Head Of Research Dev | 18,994 | 0 | 18,994 | 0.0% | 31 Jul, 2026 |
| 13 | Adams Catherine Owen | Chief Executive Officer | 14,803 | 0 | 14,803 | 0.0% | 26 Mar, 2026 |
| 14 | James Kihara | Principal Accounting Officer | 13,088 | 0 | 13,088 | 0.0% | 29 Jun, 2026 |
| 15 | James M Daly | Director | 12,148 | 0 | 12,148 | 0.0% | 01 Jun, 2026 |
| 16 | Jennifer J Rhodes | Evp, Chief Legal Officer, Sec | 11,280 | 0 | 11,280 | 0.0% | 26 Mar, 2026 |
| 17 | Jonathan Poole | Director | 2,010 | 0 | 2,010 | 0.0% | 01 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 05 Aug, 2026 | Mark C. Schneyer | Evp, Chief Financial Officer | Acquired M | 5,849 | $17.84 | $104.35K | 73,677 | Direct |
| 05 Aug, 2026 | Mark C. Schneyer | Evp, Chief Financial Officer | Disposed S | 5,849 | $29.00 | $169.64K | 67,828 | Direct |
| 06 Aug, 2026 | Mark C. Schneyer | Evp, Chief Financial Officer | Acquired M | 14,292 | $17.84 | $254.97K | 82,120 | Direct |
| 06 Aug, 2026 | Mark C. Schneyer | Evp, Chief Financial Officer | Disposed S | 5,000 | $29.00 | $145.00K | 77,120 | Direct |
| 06 Aug, 2026 | Mark C. Schneyer | Evp, Chief Financial Officer | Disposed S | 9,292 | $29.34 | $272.60K | 67,828 | Direct |
| 05 Aug, 2026 | Mark C. Schneyer | Evp, Chief Financial Officer | Disposed M | 5,849 | $0.00 | $0 | 74,715 | Direct |
| 06 Aug, 2026 | Mark C. Schneyer | Evp, Chief Financial Officer | Disposed M | 14,292 | $0.00 | $0 | 60,423 | Direct |
| 29 Jul, 2026 | Elizabeth H.Z. Thompson | Evp, Head Of Research Dev | Acquired M | 32,272 | — | — | 35,552 | Direct |
| 30 Jul, 2026 | Elizabeth H.Z. Thompson | Evp, Head Of Research Dev | Disposed S | 16,508 | $26.13 | $431.35K | 19,044 | Direct |
| 30 Jul, 2026 | Elizabeth H.Z. Thompson | Evp, Head Of Research Dev | Disposed S | 50 | $26.17 | $1.31K | 18,994 | Direct |
| 29 Jul, 2026 | Elizabeth H.Z. Thompson | Evp, Head Of Research Dev | Disposed M | 32,272 | $0.00 | $0 | 32,272 | Direct |
| 26 Jun, 2026 | James Kihara | Principal Accounting Officer | Disposed S | 11,421 | $26.08 | $297.91K | 13,088 | Direct |
| 29 May, 2026 | Bros. Advisors Lp Baker | Director, TenPercentOwner | Acquired A | 18,622 | $0.00 | $0 | 3,677,357 | Indirect |
| 29 May, 2026 | Bros. Advisors Lp Baker | Director, TenPercentOwner | Acquired A | 18,622 | $0.00 | $0 | 39,384,587 | Indirect |
| 29 May, 2026 | Bros. Advisors Lp Baker | Director, TenPercentOwner | Acquired A | 32,008 | $0.00 | $0 | 32,008 | Indirect |
| 29 May, 2026 | Bros. Advisors Lp Baker | Director, TenPercentOwner | Acquired A | 32,008 | $0.00 | $0 | 32,008 | Indirect |
| 29 May, 2026 | Edmund Harrigan | Director | Acquired M | 8,107 | — | — | 43,148 | Direct |
| 29 May, 2026 | Adora Ndu | Director | Acquired M | 8,107 | — | — | 32,908 | Direct |
| 29 May, 2026 | Laura Brege | Director | Acquired M | 8,107 | — | — | 23,202 | Direct |
| 29 May, 2026 | James M Daly | Director | Acquired M | 8,107 | — | — | 12,148 | Direct |