The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 3, 2026 | Gray Mary Ann | Director | Tender(U) | 5K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 478 | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 32K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 8K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 5K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 1K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 2K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 560 | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 1K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 484 | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 938 | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 3K | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 498 | — | — |
| Mar 3, 2026 | Gray Mary Ann | Director | Disposed to issuer(D) | 938 | — | — |
| Mar 3, 2026 | Dombkowski Ashley L. | Director | Tender(U) | 5K | — | — |
| Mar 3, 2026 | Dombkowski Ashley L. | Director | Disposed to issuer(D) | 25K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Tender(U) | 3K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Disposed to issuer(D) | 18K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Disposed to issuer(D) | 8K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Disposed to issuer(D) | 8K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Disposed to issuer(D) | 69K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Disposed to issuer(D) | 9K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Disposed to issuer(D) | 11K | — | — |
| Mar 3, 2026 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Disposed to issuer(D) | 80K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Tender(U) | 5K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 7K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 6K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 3K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 3K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 1K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 1K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 7K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 58K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 64K | — | — |
| Mar 3, 2026 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Disposed to issuer(D) | 9K | — | — |
| Mar 3, 2026 | Braunstein Scott | Director | Tender(U) | 5K | — | — |
| Mar 3, 2026 | Braunstein Scott | Director | Disposed to issuer(D) | 25K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Tender(U) | 64K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 34K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 8K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 10K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 19K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 38K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 31K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 372K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 25K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 8K | — | — |
| Mar 3, 2026 | Wong Brian Russell | PRESIDENT AND CEO, Director | Disposed to issuer(D) | 218K | — | — |
| Mar 3, 2026 | Lyons-Williams Lori | Director | Tender(U) | 5K | — | — |
| Mar 3, 2026 | Lyons-Williams Lori | Director | Disposed to issuer(D) | 5K | — | — |
| Mar 3, 2026 | Lyons-Williams Lori | Director | Disposed to issuer(D) | 2K | — | — |
| Mar 3, 2026 | Lyons-Williams Lori | Director | Disposed to issuer(D) | 1K | — | — |
| Mar 3, 2026 | Lyons-Williams Lori | Director | Disposed to issuer(D) | 3K | — | — |
| Mar 3, 2026 | Lyons-Williams Lori | Director | Disposed to issuer(D) | 32K | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Tender(U) | 5K | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 824 | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 402 | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 799 | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 938 | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 1K | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 938 | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 32K | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 5K | — | — |
| Mar 3, 2026 | Giordano Michael F | Director | Disposed to issuer(D) | 2K | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Tender(U) | 5K | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 938 | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 1K | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 2K | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 5K | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 32K | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 2K | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 938 | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 521 | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 521 | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 417 | — | — |
| Mar 3, 2026 | Kozick Linda | Director | Disposed to issuer(D) | 2K | — | — |
| Jan 30, 2026 | Gray Mary Ann | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Dombkowski Ashley L. | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Braunstein Scott | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Lyons-Williams Lori | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Giordano Michael F | Director | Grant(A) | 5K | — | $0 |
| Jan 30, 2026 | Kozick Linda | Director | Grant(A) | 5K | — | $0 |
| Jun 21, 2025 | Braunstein Scott | Director | Grant(A) | 25K | — | $0 |
| Jun 21, 2025 | Dombkowski Ashley L. | Director | Grant(A) | 25K | — | $0 |
| Jun 20, 2025 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Grant(A) | 100K | — | $0 |
| Jun 20, 2025 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Grant(A) | 119K | — | $0 |
| Jun 20, 2025 | Wong Brian Russell | PRESIDENT AND CEO, Director | Grant(A) | 638K | — | $0 |
| Jun 20, 2025 | Ho William | CHIEF MEDICAL OFFICER | Grant(A) | 75K | — | $0 |
| May 29, 2025 | Kozick Linda | Director | Grant(A) | 258K | — | $0 |
| May 29, 2025 | Lyons-Williams Lori | Director | Grant(A) | 258K | — | $0 |
| May 29, 2025 | Gray Mary Ann | Director | Grant(A) | 258K | — | $0 |
| May 29, 2025 | Giordano Michael F | Director | Grant(A) | 258K | — | $0 |
| Mar 31, 2025 | Gray Mary Ann | Director | Grant(A) | 61K | $1.06 | $65K |
| Mar 31, 2025 | Robbins Wendye | Director | Grant(A) | 49K | $1.06 | $52K |
| Jan 30, 2025 | Wong Brian Russell | PRESIDENT AND CEO, Director | Grant(A) | 1.7M | — | $0 |
| Jan 30, 2025 | Brockstedt Dirk G. | CHIEF SCIENTIFIC OFFICER | Grant(A) | 515K | — | $0 |
| Jan 30, 2025 | Young Rodney KB | CHIEF FINANCIAL OFFICER | Grant(A) | 642K | — | $0 |
| Jan 30, 2025 | Ho William | CHIEF MEDICAL OFFICER | Grant(A) | 450K | — | $0 |
| Dec 23, 2024 | Column Group LLC | 10% Owner | Other(J) | 1.4M | — | — |
| Dec 23, 2024 | Column Group LLC | 10% Owner | Other(J) | 1.6M | — | — |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-03-29 → 2026-07-14. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).