BAKER BROS. ADVISORS LP - 24 Feb 2026 SCHEDULE 13D/A Report for ACADIA Pharmaceuticals Inc. Common Stock, $0.0001 par value per share (ACAD)

Filing Manager
BAKER BROS. ADVISORS LP
Reporting Manager
Julian C. Baker
Security
ACADIA Pharmaceuticals Inc. Common Stock, $0.0001 par value per share
Symbol
ACAD
Shares outstanding
170,450,287 shares
Disclosed Ownership
43,294,373 shares
Ownership
25%
Form type
SCHEDULE 13D/A
Filing time
26 Feb 2026, 18:59:24 UTC
Date of event
24 Feb 2026
SEC
View on sec.gov

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Quoteable Key Fact

"BAKER BROS. ADVISORS LP disclosed 25% ownership in ACADIA Pharmaceuticals Inc. Common Stock, $0.0001 par value per share (ACAD) on 24 Feb 2026."

Quick Takeaways

  • BAKER BROS. ADVISORS LP filed SCHEDULE 13D/A for ACADIA Pharmaceuticals Inc. Common Stock, $0.0001 par value per share (ACAD).
  • Disclosed ownership: 25%.
  • Date of event: 24 Feb 2026.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 26 Feb 2026, 18:59.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (5)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Baker Bros. Advisors LP 25% 43,151,054 43,151,054 0 /s/ Scott L. Lessing Scott L. Lessing/ President 0001263508
Baker Bros. Advisors (GP) LLC 25% 43,151,054 43,151,054 0 /s/ Scott L. Lessing Scott L. Lessing/ President 0001580575
Julian C. Baker 25% 43,294,373 43,294,373 0 /s/ Julian C. Baker Julian C. Baker 0001087939
Felix J. Baker 25% 43,294,373 43,294,373 0 /s/ Felix J. Baker Felix J. Baker 0001087940
FBB3 LLC 0.02% 40,443 40,443 0 /s/ Felix J. Baker Felix J. Baker 0001625395

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