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 |
|---|---|---|---|---|---|---|
| May 20, 2026 | Raifeld Pavel | Chief Executive Officer, Director | Tax withholding(F) | 1K | $22.24 | $25K |
| May 20, 2026 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 1K | $22.24 | $25K |
| May 20, 2026 | Basso Stephen | Chief Financial Officer | Tax withholding(F) | 559 | $22.24 | $12K |
| May 18, 2026 | Linden Josephine | Director | Grant(A) | 9K | — | $0 |
| May 18, 2026 | Linden Josephine | Director | Grant(A) | 9K | — | $0 |
| May 18, 2026 | Linden Josephine | Director | Grant(A) | 6K | — | $0 |
| May 15, 2026 | Raifeld Pavel | Chief Executive Officer, Director | Grant(A) | 1K | — | $0 |
| May 15, 2026 | Basso Stephen | Chief Financial Officer | Grant(A) | 1K | — | $0 |
| May 4, 2026 | Raifeld Pavel | Chief Executive Officer, Director | Grant(A) | 313K | — | $0 |
| May 4, 2026 | Raifeld Pavel | Chief Executive Officer, Director | Grant(A) | 127K | — | $0 |
| May 4, 2026 | DiPaolo Mark | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | DiPaolo Mark | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 32K | — | $0 |
| May 4, 2026 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 13K | — | $0 |
| May 4, 2026 | Schlesinger Sarah J. | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | Schlesinger Sarah J. | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | Small Derek A | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | Small Derek A | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | Haimovitz Jules | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | Haimovitz Jules | Director | Grant(A) | 10K | — | $0 |
| May 4, 2026 | Basso Stephen | Chief Financial Officer | Grant(A) | 94K | — | $0 |
| May 4, 2026 | Basso Stephen | Chief Financial Officer | Grant(A) | 38K | — | $0 |
| Feb 20, 2026 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 2K | $23.39 | $58K |
| Feb 20, 2026 | Raifeld Pavel | Chief Executive Officer, Director | Tax withholding(F) | 3K | $23.39 | $70K |
| Feb 20, 2026 | Basso Stephen | Chief Financial Officer | Tax withholding(F) | 1K | $23.39 | $29K |
| Nov 20, 2025 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 992 | $21.16 | $21K |
| Nov 20, 2025 | Basso Stephen | Chief Financial Officer | Tax withholding(F) | 237 | $21.16 | $5K |
| Nov 15, 2025 | Basso Stephen | Chief Financial Officer | Grant(A) | 604 | — | $0 |
| Nov 3, 2025 | Raifeld Pavel | 10% Owner | Grant(A) | 110K | $18.11 | $2.0M |
| Nov 3, 2025 | Basso Stephen | Chief Financial Officer | Grant(A) | 28K | $18.11 | $500K |
| Aug 20, 2025 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 991 | $19.95 | $20K |
| Aug 20, 2025 | Basso Stephen | Chief Financial Officer | Tax withholding(F) | 237 | $19.95 | $5K |
| May 20, 2025 | Basso Stephen | Chief Financial Officer | Tax withholding(F) | 237 | $18.78 | $4K |
| May 20, 2025 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 992 | $18.78 | $19K |
| May 19, 2025 | Haimovitz Jules | Director | Grant(A) | 12K | — | $0 |
| May 19, 2025 | Haimovitz Jules | Director | Grant(A) | 10K | — | $0 |
| May 19, 2025 | Schlesinger Sarah J. | Director | Grant(A) | 12K | — | $0 |
| May 19, 2025 | Schlesinger Sarah J. | Director | Grant(A) | 10K | — | $0 |
| May 19, 2025 | DiPaolo Mark | Director | Grant(A) | 12K | — | $0 |
| May 19, 2025 | DiPaolo Mark | Director | Grant(A) | 10K | — | $0 |
| May 19, 2025 | Small Derek A | Director | Grant(A) | 12K | — | $0 |
| May 19, 2025 | Small Derek A | Director | Grant(A) | 10K | — | $0 |
| May 15, 2025 | Raifeld Pavel | 10% Owner | Grant(A) | 2K | — | $0 |
| May 15, 2025 | Basso Stephen | Chief Financial Officer | Grant(A) | 1K | — | $0 |
| Mar 14, 2025 | Raifeld Pavel | 10% Owner | Grant(A) | 37K | $17.39 | $650K |
| Mar 14, 2025 | Raifeld Pavel | 10% Owner | Grant(A) | 244K | — | $0 |
| Mar 6, 2025 | Denner Alexander J | 10% Owner | Sell(S) | 1.2M | $17.52 | $21.0M |
| Mar 5, 2025 | Denner Alexander J | 10% Owner | Sell(S) | 270K | $17.63 | $4.8M |
| Mar 4, 2025 | Denner Alexander J | 10% Owner | Sell(S) | 151K | $17.63 | $2.7M |
| Feb 24, 2025 | Basso Stephen | Chief Financial Officer | Grant(A) | 11K | $18.08 | $191K |
| Feb 24, 2025 | Basso Stephen | Chief Financial Officer | Grant(A) | 101K | — | $0 |
| Feb 24, 2025 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 9K | $18.08 | $162K |
| Feb 24, 2025 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 30K | — | $0 |
| Feb 20, 2025 | Basso Stephen | Chief Financial Officer | Tax withholding(F) | 1K | $18.07 | $20K |
| Feb 20, 2025 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 3K | $18.07 | $46K |
| Nov 20, 2024 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 976 | $19.15 | $19K |
| Nov 15, 2024 | Basso Stephen | Chief Financial Officer | Grant(A) | 843 | — | $0 |
| Nov 15, 2024 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 300 | — | $0 |
| Aug 20, 2024 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 975 | $18.49 | $18K |
| Jun 17, 2024 | DiPaolo Mark | Director | Grant(A) | 14K | — | $0 |
| Jun 17, 2024 | DiPaolo Mark | Director | Grant(A) | 10K | — | $0 |
| Jun 17, 2024 | Haimovitz Jules | Director | Grant(A) | 14K | — | $0 |
| Jun 17, 2024 | Haimovitz Jules | Director | Grant(A) | 10K | — | $0 |
| Jun 17, 2024 | Odysseas Kostas D | Director | Grant(A) | 14K | — | $0 |
| Jun 17, 2024 | Odysseas Kostas D | Director | Grant(A) | 10K | — | $0 |
| Jun 17, 2024 | Schlesinger Sarah J. | Director | Grant(A) | 14K | — | $0 |
| Jun 17, 2024 | Schlesinger Sarah J. | Director | Grant(A) | 10K | — | $0 |
| Jun 17, 2024 | Small Derek A | Director | Grant(A) | 14K | — | $0 |
| Jun 17, 2024 | Small Derek A | Director | Grant(A) | 10K | — | $0 |
| Jun 17, 2024 | Srivastava Sapna | Director | Grant(A) | 14K | — | $0 |
| Jun 17, 2024 | Srivastava Sapna | Director | Grant(A) | 10K | — | $0 |
| May 20, 2024 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 976 | $16.13 | $16K |
| May 20, 2024 | Ronsheim Matthew | See Remarks | Tax withholding(F) | 268 | $16.13 | $4K |
| Mar 5, 2024 | Raifeld Pavel | Chief Executive Officer | Grant(A) | 100K | — | $0 |
| Mar 5, 2024 | Raifeld Pavel | Chief Executive Officer | Grant(A) | 75K | — | $0 |
| Mar 5, 2024 | Raifeld Pavel | Chief Executive Officer | Grant(A) | 150K | — | $0 |
| Mar 5, 2024 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 11K | $14.88 | $160K |
| Mar 5, 2024 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 23K | — | $0 |
| Mar 5, 2024 | Ronsheim Matthew | See Remarks | Grant(A) | 13K | $14.88 | $190K |
| Mar 5, 2024 | Ronsheim Matthew | See Remarks | Grant(A) | 27K | — | $0 |
| Mar 5, 2024 | Basso Stephen | Chief Financial Officer | Grant(A) | 12K | $14.88 | $180K |
| Mar 5, 2024 | Basso Stephen | Chief Financial Officer | Grant(A) | 26K | — | $0 |
| Feb 20, 2024 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 3K | $15.80 | $45K |
| Feb 20, 2024 | Ronsheim Matthew | See Remarks | Tax withholding(F) | 807 | $15.80 | $13K |
| Jan 18, 2024 | Ronsheim Matthew | See Remarks | Tax withholding(F) | 2K | $16.05 | $26K |
| Jan 18, 2024 | Ronsheim Matthew | See Remarks | Grant(A) | 60K | — | $0 |
| Nov 20, 2023 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 784 | $13.62 | $11K |
| Nov 15, 2023 | Zhen Marianne | Chief Accounting Officer | Sell(S) | 6K | $14.01 | $78K |
| Nov 15, 2023 | Zhen Marianne | Chief Accounting Officer | Sell(S) | 5K | $13.97 | $76K |
| Nov 15, 2023 | Zhen Marianne | Chief Accounting Officer | Grant(A) | 302 | — | $0 |
| Aug 31, 2023 | Basso Stephen | Chief Financial Officer | Grant(A) | 150K | — | $0 |
| Aug 18, 2023 | Zhen Marianne | Chief Accounting Officer | Tax withholding(F) | 785 | $13.64 | $11K |
| Jul 31, 2023 | Koziel Margaret | Chief Medical Officer | Grant(A) | 60K | — | $0 |
| Jun 15, 2023 | Sarissa Capital Management LP | 10% Owner | Buy(P) | 62K | $13.13 | $814K |
| Jun 6, 2023 | Denner Alexander J | 10% Owner | Buy(P) | 8K | $13.05 | $104K |
| Jun 5, 2023 | Denner Alexander J | 10% Owner | Buy(P) | 7K | $13.04 | $91K |
| May 30, 2023 | Denner Alexander J | 10% Owner | Buy(P) | 120K | $13.01 | $1.6M |
| May 26, 2023 | Denner Alexander J | 10% Owner | Buy(P) | 30K | $13.12 | $394K |
| May 25, 2023 | Denner Alexander J | 10% Owner | Buy(P) | 50K | $13.09 | $655K |
| May 22, 2023 | Odysseas Kostas D | Director | Grant(A) | 16K | — | $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).