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 |
|---|---|---|---|---|---|---|
| Jun 15, 2026 | Williams Charles O | Chief Operating Officer | Grant(A) | 2K | $8.11 | $14K |
| Jun 15, 2026 | Parker Craig C | Chief Executive Officer, Director | Grant(A) | 2K | $8.11 | $13K |
| Jun 15, 2026 | Maleki Andrew Pedrum | Chief Financial Officer | Grant(A) | 607 | $19.01 | $12K |
| Jun 15, 2026 | Li Yang | Exec. Vice President, Research | Grant(A) | 2K | $8.11 | $14K |
| May 13, 2026 | Bjerkholt Eric | Director | Grant(A) | 6K | — | $0 |
| May 13, 2026 | Berkenblit Anna | Director | Grant(A) | 6K | — | $0 |
| May 13, 2026 | Chai Christopher Y | Director | Grant(A) | 6K | — | $0 |
| May 13, 2026 | Woodhouse David J | Director | Grant(A) | 6K | — | $0 |
| May 13, 2026 | Haak-Frendscho Mary | Director | Grant(A) | 6K | — | $0 |
| May 13, 2026 | Rothenberg Mace | Director | Grant(A) | 6K | — | $0 |
| May 13, 2026 | Kutzkey Tim | Director, 10% Owner | Grant(A) | 6K | — | $0 |
| May 4, 2026 | Li Yang | Exec. Vice President, Research | Sell(S) | 2K | $33.33 | $53K |
| May 4, 2026 | Parker Craig C | Chief Executive Officer, Director | Sell(S) | 5K | $33.33 | $151K |
| May 4, 2026 | Williams Charles O | Chief Operating Officer | Sell(S) | 2K | $33.33 | $68K |
| May 1, 2026 | Li Yang | Exec. Vice President, Research | Option exercise(M) | 4K | — | — |
| May 1, 2026 | Li Yang | Exec. Vice President, Research | Option exercise(M) | 4K | — | $0 |
| May 1, 2026 | Parker Craig C | Chief Executive Officer, Director | Option exercise(M) | 13K | — | — |
| May 1, 2026 | Parker Craig C | Chief Executive Officer, Director | Option exercise(M) | 13K | — | $0 |
| May 1, 2026 | Williams Charles O | Chief Operating Officer | Option exercise(M) | 6K | — | — |
| May 1, 2026 | Williams Charles O | Chief Operating Officer | Option exercise(M) | 6K | — | $0 |
| Mar 31, 2026 | Li Yang | Exec. Vice President, Research | Gift(G) | 2K | — | $0 |
| Mar 24, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 53K | $24.69 | $1.3M |
| Mar 24, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 53K | $24.69 | $1.3M |
| Mar 23, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 8K | $24.90 | $190K |
| Mar 23, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 8K | $24.90 | $190K |
| Mar 16, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 595 | $24.99 | $15K |
| Mar 16, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 595 | $24.99 | $15K |
| Mar 13, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 18K | $24.88 | $441K |
| Mar 13, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 18K | $24.88 | $441K |
| Mar 12, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 6K | $24.99 | $155K |
| Mar 12, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 6K | $24.99 | $155K |
| Feb 17, 2026 | Parker Craig C | Chief Executive Officer, Director | Grant(A) | 242K | — | $0 |
| Feb 17, 2026 | Parker Craig C | Chief Executive Officer, Director | Grant(A) | 242K | — | $0 |
| Feb 17, 2026 | Williams Charles O | Chief Operating Officer | Grant(A) | 103K | — | $0 |
| Feb 17, 2026 | Williams Charles O | Chief Operating Officer | Grant(A) | 103K | — | $0 |
| Feb 17, 2026 | Li Yang | Exec. Vice President, Research | Grant(A) | 101K | — | $0 |
| Feb 17, 2026 | Li Yang | Exec. Vice President, Research | Grant(A) | 101K | — | $0 |
| Feb 12, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 546 | $23.86 | $13K |
| Feb 12, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 547 | $23.86 | $13K |
| Feb 11, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 9K | $23.58 | $209K |
| Feb 11, 2026 | TCG Crossover Fund II, L.P. | 10% Owner | Buy(P) | 9K | $23.58 | $209K |
| Feb 3, 2026 | TCG Crossover GP III, LLC | 10% Owner | Buy(P) | 2K | $21.94 | $48K |
| Feb 3, 2026 | TCG Crossover GP III, LLC | 10% Owner | Buy(P) | 2K | $21.94 | $48K |
| Feb 2, 2026 | TCG Crossover GP III, LLC | 10% Owner | Buy(P) | 366 | $21.38 | $8K |
| Feb 2, 2026 | TCG Crossover GP III, LLC | 10% Owner | Buy(P) | 365 | $21.38 | $8K |
| Jan 30, 2026 | TCG Crossover GP III, LLC | 10% Owner | Buy(P) | 2K | $21.39 | $46K |
| Jan 30, 2026 | TCG Crossover GP III, LLC | 10% Owner | Buy(P) | 2K | $21.39 | $46K |
| Jan 23, 2026 | Williams Charles O | Chief Operating Officer | Grant(A) | 500 | — | $0 |
| Jan 20, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 10K | $19.60 | $188K |
| Jan 20, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 8K | $19.60 | $166K |
| Jan 20, 2026 | Column Group Opportunity III GP, LP | 10% Owner | Buy(P) | 10K | $19.60 | $188K |
| Jan 20, 2026 | Column Group Opportunity III GP, LP | 10% Owner | Buy(P) | 8K | $19.60 | $166K |
| Jan 16, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 1K | $20.00 | $27K |
| Jan 16, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 1K | $20.00 | $24K |
| Jan 16, 2026 | Column Group Opportunity III GP, LP | 10% Owner | Buy(P) | 1K | $20.00 | $27K |
| Jan 16, 2026 | Column Group Opportunity III GP, LP | 10% Owner | Buy(P) | 1K | $20.00 | $24K |
| Jan 15, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 6K | $19.89 | $111K |
| Jan 15, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 6K | $19.89 | $125K |
| Jan 15, 2026 | Column Group Opportunity III GP, LP | 10% Owner | Buy(P) | 6K | $19.89 | $111K |
| Jan 15, 2026 | Column Group Opportunity III GP, LP | 10% Owner | Buy(P) | 6K | $19.89 | $125K |
| Jan 14, 2026 | TCG Opportunity III GP, LLC | 10% Owner | Buy(P) | 3K | $19.99 | $59K |
| Jan 14, 2026 | TCG Opportunity III GP, LLC | 10% Owner | Buy(P) | 3K | $19.99 | $52K |
| Jan 14, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 3K | $19.99 | $59K |
| Jan 14, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 3K | $19.99 | $52K |
| Jan 13, 2026 | TCG Opportunity III GP, LLC | 10% Owner | Buy(P) | 6K | $19.80 | $116K |
| Jan 13, 2026 | TCG Opportunity III GP, LLC | 10% Owner | Buy(P) | 7K | $19.80 | $131K |
| Jan 13, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 6K | $19.80 | $116K |
| Jan 13, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 7K | $19.80 | $131K |
| Jan 6, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 8K | $19.89 | $159K |
| Jan 6, 2026 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 7K | $19.89 | $141K |
| Jan 6, 2026 | Column Group III GP, LP | 10% Owner | Buy(P) | 7K | $19.89 | $141K |
| Jan 6, 2026 | Column Group III GP, LP | 10% Owner | Buy(P) | 8K | $19.89 | $159K |
| Jan 5, 2026 | Williams Charles O | Chief Operating Officer | Sell(S) | 2K | $19.87 | $31K |
| Jan 5, 2026 | Li Yang | Exec. Vice President, Research | Sell(S) | 1K | $19.87 | $22K |
| Jan 2, 2026 | Williams Charles O | Chief Operating Officer | Option exercise(M) | 4K | — | — |
| Jan 2, 2026 | Williams Charles O | Chief Operating Officer | Option exercise(M) | 4K | — | $0 |
| Jan 2, 2026 | Li Yang | Exec. Vice President, Research | Option exercise(M) | 3K | — | — |
| Jan 2, 2026 | Li Yang | Exec. Vice President, Research | Option exercise(M) | 3K | — | $0 |
| Dec 15, 2025 | Parker Craig C | Chief Executive Officer, Director | Grant(A) | 2K | $8.11 | $13K |
| Dec 15, 2025 | Williams Charles O | Chief Operating Officer | Grant(A) | 2K | $8.11 | $14K |
| Dec 15, 2025 | Li Yang | Exec. Vice President, Research | Grant(A) | 2K | $8.11 | $14K |
| Dec 5, 2025 | Column Group III GP, LP | 10% Owner | Buy(P) | 15K | $19.54 | $283K |
| Dec 5, 2025 | Column Group III GP, LP | 10% Owner | Buy(P) | 16K | $19.54 | $320K |
| Dec 5, 2025 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 16K | $19.54 | $320K |
| Dec 5, 2025 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 15K | $19.54 | $283K |
| Dec 4, 2025 | Column Group III GP, LP | 10% Owner | Buy(P) | 2K | $17.35 | $43K |
| Dec 4, 2025 | Column Group III GP, LP | 10% Owner | Buy(P) | 3K | $17.35 | $48K |
| Dec 4, 2025 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 3K | $17.35 | $48K |
| Dec 4, 2025 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 2K | $17.35 | $43K |
| Nov 13, 2025 | Column Group III GP, LP | 10% Owner | Buy(P) | 167K | $12.65 | $2.1M |
| Nov 13, 2025 | Column Group III GP, LP | 10% Owner | Buy(P) | 148K | $12.65 | $1.9M |
| Nov 13, 2025 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 167K | $12.65 | $2.1M |
| Nov 13, 2025 | Kutzkey Tim | Director, 10% Owner | Buy(P) | 148K | $12.65 | $1.9M |
| Nov 12, 2025 | Maleki Andrew Pedrum | Chief Financial Officer | Grant(A) | 50K | — | $0 |
| Jun 13, 2025 | Parker Craig C | Chief Executive Officer, Director | Grant(A) | 400 | $8.06 | $3K |
| Jun 13, 2025 | Williams Charles O | CFO and COO | Grant(A) | 400 | $8.06 | $3K |
| Jun 13, 2025 | Li Yang | Exec. Vice President, Research | Grant(A) | 400 | $8.06 | $3K |
| May 14, 2025 | Berkenblit Anna | Director | Grant(A) | 1K | — | $0 |
| May 14, 2025 | Woodhouse David J | Director | Grant(A) | 1K | — | $0 |
| May 14, 2025 | Lin Shao-Lee | Director | Grant(A) | 1K | — | $0 |
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).