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 14, 2026 | Smith W Bradford | Director | Disposed to issuer(D) | 640 | — | $0 |
| Apr 1, 2026 | Cavalier Jason | Principal Financial Officer | Disposed to issuer(D) | 667 | — | $0 |
| Apr 1, 2026 | Palasis Maria | Principal Executive Officer, Director | Disposed to issuer(D) | 2K | — | $0 |
| Jan 6, 2026 | Palasis Maria | President & CEO, Director | Sell(S) | 2K | $3.36 | $6K |
| Jan 6, 2026 | Cavalier Jason | Chief Financial Officer | Sell(S) | 769 | $3.36 | $3K |
| Nov 13, 2025 | Perceptive Advisors LLC | 10% Owner | Sell(S) | 29K | $3.90 | $112K |
| Nov 13, 2025 | Perceptive Advisors LLC | 10% Owner | Sell(S) | 3K | $3.90 | $13K |
| Nov 12, 2025 | Perceptive Advisors LLC | 10% Owner | Sell(S) | 883 | $4.06 | $4K |
| Nov 12, 2025 | Perceptive Advisors LLC | 10% Owner | Sell(S) | 8K | $4.06 | $32K |
| Nov 11, 2025 | Perceptive Advisors LLC | 10% Owner | Sell(S) | 537 | $4.31 | $2K |
| Nov 11, 2025 | Perceptive Advisors LLC | 10% Owner | Sell(S) | 5K | $4.31 | $21K |
| Nov 10, 2025 | Edelman Joseph | 10% Owner | Sell(S) | 2K | $4.54 | $8K |
| Nov 10, 2025 | Edelman Joseph | 10% Owner | Sell(S) | 17K | $4.54 | $76K |
| Nov 7, 2025 | Edelman Joseph | 10% Owner | Sell(S) | 2K | $4.75 | $9K |
| Nov 7, 2025 | Edelman Joseph | 10% Owner | Sell(S) | 18K | $4.75 | $84K |
| Nov 6, 2025 | Edelman Joseph | 10% Owner | Sell(S) | 29K | $5.18 | $150K |
| Nov 6, 2025 | Edelman Joseph | 10% Owner | Sell(S) | 3K | $5.18 | $17K |
| Oct 1, 2025 | Palasis Maria | President & CEO, Director | Grant(A) | 4K | — | $0 |
| Jul 10, 2025 | Cavalier Jason | Chief Financial Officer | Sell(S) | 684 | $8.91 | $6K |
| Jul 10, 2025 | Palasis Maria | President & CEO, Director | Sell(S) | 2K | $8.91 | $14K |
| May 14, 2025 | Smith W Bradford | Director | Grant(A) | 32K | — | $0 |
| May 14, 2025 | snyderman nancy lynn MD | Director | Grant(A) | 32K | — | $0 |
| May 14, 2025 | Tobin James R | Director | Grant(A) | 32K | — | $0 |
| May 14, 2025 | Merrifield C Ann | Director | Grant(A) | 32K | — | $0 |
| Jan 8, 2025 | Cavalier Jason | Chief Financial Officer | Grant(A) | 420K | — | $0 |
| Jan 8, 2025 | Palasis Maria | President & CEO, Director | Grant(A) | 800K | — | $0 |
| Dec 9, 2024 | Waksal Harlan | Executive Chair, Director | Grant(A) | 128K | — | $0 |
| Dec 9, 2024 | Palasis Maria | President & CEO, Director | Grant(A) | 183K | — | $0 |
| Oct 16, 2024 | Cavalier Jason | Chief Financial Officer | Grant(A) | 100K | — | $0 |
| Oct 16, 2024 | Palasis Maria | President & CEO, Director | Grant(A) | 300K | — | $0 |
| Jun 13, 2024 | Merrifield C Ann | Director | Grant(A) | 30K | — | $0 |
| Jun 13, 2024 | Smith W Bradford | Director | Grant(A) | 30K | — | $0 |
| Jun 13, 2024 | snyderman nancy lynn MD | Director | Grant(A) | 30K | — | $0 |
| Jun 13, 2024 | Tobin James R | Director | Grant(A) | 30K | — | $0 |
| Jun 13, 2024 | Poukalov Konstantin | Director | Grant(A) | 30K | — | $0 |
| Jun 13, 2024 | Altman Michael Seth | Director | Grant(A) | 30K | — | $0 |
| Mar 18, 2024 | Palasis Maria | President & CEO, Director | Grant(A) | 500K | — | $0 |
| Mar 18, 2024 | Waksal Harlan | Executive Chair, Director | Grant(A) | 275K | — | $0 |
| Jan 30, 2024 | Cavalier Jason | Chief Financial Officer | Grant(A) | 200K | — | $0 |
| Jan 30, 2024 | Nieman Richard | Chief Medical Officer | Grant(A) | 200K | — | $0 |
| Jan 30, 2024 | Bishop John E | Chief Technology Officer | Grant(A) | 200K | — | $0 |
| Nov 10, 2023 | Waksal Harlan | Executive Chair, Director | Buy(P) | 25K | $2.96 | $74K |
| Jun 30, 2023 | snyderman nancy lynn MD | Director | Grant(A) | 20K | — | $0 |
| Jun 30, 2023 | Anderson Edward T | Director, 10% Owner | Grant(A) | 20K | — | $0 |
| Jun 30, 2023 | Merrifield C Ann | Director | Grant(A) | 20K | — | $0 |
| Jun 30, 2023 | Altman Michael Seth | Director | Grant(A) | 20K | — | $0 |
| Jun 30, 2023 | Poukalov Konstantin | Director | Grant(A) | 20K | — | $0 |
| Jun 30, 2023 | Smith W Bradford | Director | Grant(A) | 20K | — | $0 |
| Jun 30, 2023 | Tobin James R | Director | Grant(A) | 20K | — | $0 |
| Jun 15, 2023 | Palasis Maria | President & CEO, Director | Grant(A) | 150K | — | $0 |
| May 31, 2023 | Anderson Edward T | Director, 10% Owner | Buy(P) | 404K | $2.43 | $981K |
| May 31, 2023 | Anderson Edward T | Director, 10% Owner | Buy(P) | 1.2M | $2.43 | $2.9M |
| May 31, 2023 | Anderson Edward T | Director, 10% Owner | Buy(P) | 198K | $2.43 | $481K |
| May 31, 2023 | Anderson Edward T | Director, 10% Owner | Buy(P) | 99K | $0.13 | $13K |
| May 31, 2023 | Anderson Edward T | Director, 10% Owner | Buy(P) | 202K | $0.13 | $26K |
| May 31, 2023 | Anderson Edward T | Director, 10% Owner | Buy(P) | 602K | $0.13 | $78K |
| May 31, 2023 | North Bridge Venture Partners VI L P | 10% Owner | Buy(P) | 404K | $2.43 | $981K |
| May 31, 2023 | North Bridge Venture Partners VI L P | 10% Owner | Buy(P) | 1.2M | $2.43 | $2.9M |
| May 31, 2023 | North Bridge Venture Partners VI L P | 10% Owner | Buy(P) | 198K | $2.43 | $481K |
| May 31, 2023 | North Bridge Venture Partners VI L P | 10% Owner | Buy(P) | 99K | $0.13 | $13K |
| May 31, 2023 | North Bridge Venture Partners VI L P | 10% Owner | Buy(P) | 202K | $0.13 | $26K |
| May 31, 2023 | North Bridge Venture Partners VI L P | 10% Owner | Buy(P) | 602K | $0.13 | $78K |
| May 31, 2023 | Perceptive LS (A), LLC | 10% Owner | Buy(P) | 3.6M | $2.49 | $9.0M |
| May 31, 2023 | Perceptive LS (A), LLC | 10% Owner | Buy(P) | 1.8M | — | — |
| Feb 27, 2023 | Bishop John E | Chief Technology Officer | Grant(A) | 220K | — | $0 |
| Jan 31, 2023 | Nieman Richard | Chief Medical Officer | Grant(A) | 56K | — | $0 |
| Jan 31, 2023 | Palasis Maria | President & CEO, Director | Grant(A) | 250K | — | $0 |
| Jan 31, 2023 | Cavalier Jason | Chief Financial Officer | Grant(A) | 140K | — | $0 |
| Jan 31, 2023 | Noyes Corinne | See Remarks | Grant(A) | 37K | — | $0 |
| Jan 31, 2023 | Noyes Corinne | See Remarks | Grant(A) | 55K | — | $0 |
| Jan 31, 2023 | Waksal Harlan | Executive Chair, Director | Grant(A) | 200K | — | $0 |
| Jan 31, 2023 | Richard Robert E. | SVP, Technical Operations | Grant(A) | 30K | — | $0 |
| Jan 31, 2023 | Richard Robert E. | SVP, Technical Operations | Grant(A) | 45K | — | $0 |
| Jul 11, 2022 | Nieman Richard | Chief Medical Officer | Grant(A) | 230K | — | $0 |
| Jun 16, 2022 | snyderman nancy lynn MD | Director | Grant(A) | 7K | — | $0 |
| Jun 16, 2022 | Anderson Edward T | Director, 10% Owner | Grant(A) | 7K | — | $0 |
| Jun 16, 2022 | Waksal Harlan | Executive Chair, Director | Grant(A) | 953K | — | $0 |
| Jun 16, 2022 | Poukalov Konstantin | Director | Grant(A) | 7K | — | $0 |
| Jun 16, 2022 | Smith W Bradford | Director | Grant(A) | 7K | — | $0 |
| Jun 16, 2022 | Merrifield C Ann | Director | Grant(A) | 7K | — | $0 |
| Jun 16, 2022 | Altman Michael Seth | Director | Grant(A) | 7K | — | $0 |
| Jun 10, 2022 | Merrifield C Ann | Director | Buy(P) | 4K | $5.05 | $20K |
| May 16, 2022 | Merrifield C Ann | Director | Buy(P) | 328 | $5.00 | $2K |
| May 13, 2022 | Merrifield C Ann | Director | Buy(P) | 4K | $4.81 | $17K |
| Apr 12, 2022 | Waksal Harlan | Executive Chair, Director | Buy(P) | 237K | $4.22 | $1000K |
| Apr 12, 2022 | Anderson Edward T | Director, 10% Owner | Buy(P) | 1.1M | $4.22 | $4.5M |
| Apr 12, 2022 | Anderson Edward T | Director, 10% Owner | Buy(P) | 118K | $4.22 | $500K |
| Apr 12, 2022 | Anderson Edward T | Director, 10% Owner | Buy(P) | 765K | $4.22 | $3.2M |
| Apr 12, 2022 | Anderson Edward T | Director, 10% Owner | Buy(P) | 528K | $4.22 | $2.2M |
| Apr 12, 2022 | North Bridge Venture Partners V A LP | 10% Owner | Buy(P) | 1.1M | $4.22 | $4.5M |
| Apr 12, 2022 | North Bridge Venture Partners V A LP | 10% Owner | Buy(P) | 765K | $4.22 | $3.2M |
| Apr 12, 2022 | North Bridge Venture Partners V A LP | 10% Owner | Buy(P) | 528K | $4.22 | $2.2M |
| Apr 12, 2022 | Perceptive Advisors LLC | Director, 10% Owner | Buy(P) | 5.9M | $4.22 | $25.0M |
| Mar 4, 2022 | Tobin James R | Director | Grant(A) | 15K | — | $0 |
| Feb 16, 2022 | Waksal Harlan | Executive Chair, Director | Grant(A) | 520K | — | $0 |
| Feb 16, 2022 | Palasis Maria | President & CEO, Director | Grant(A) | 175K | — | $0 |
| Feb 12, 2022 | Richard Robert E. | SVP, Technical Operations | Grant(A) | 35K | — | $0 |
| Feb 12, 2022 | Cavalier Jason | Chief Financial Officer | Grant(A) | 16K | — | $0 |
| Feb 12, 2022 | Nelson Pamela E. | SVP, Regulatory Affairs | Grant(A) | 30K | — | $0 |
| Feb 12, 2022 | Palasis Maria | President & CEO, Director | Grant(A) | 127K | — | $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).