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 |
|---|---|---|---|---|---|---|
| Apr 15, 2026 | Bolton Sheryle | Director | Buy(P) | 10K | $1.04 | $10K |
| Apr 1, 2026 | Valauri Christina Rizopoulos | Director | Buy(P) | 19K | $0.95 | $18K |
| Mar 18, 2026 | Wolf Lisa G | Chief Financial Officer | Option exercise(M) | 92 | — | — |
| Mar 18, 2026 | Wolf Lisa G | Chief Financial Officer | Option exercise(M) | 92 | — | $0 |
| Feb 18, 2026 | Handley Michael K | Chief Operating Officer | Option exercise(M) | 9K | — | — |
| Feb 18, 2026 | Handley Michael K | Chief Operating Officer | Option exercise(M) | 9K | — | $0 |
| Dec 18, 2025 | Ernst Jennifer | Chief Executive Officer, Director | Tax withholding(F) | 5K | $1.87 | $10K |
| Dec 18, 2025 | Ernst Jennifer | Chief Executive Officer, Director | Option exercise(M) | 15K | — | — |
| Dec 18, 2025 | Ernst Jennifer | Chief Executive Officer, Director | Option exercise(M) | 15K | — | $0 |
| Dec 18, 2025 | Wolf Lisa G | Chief Financial Officer | Tax withholding(F) | 302 | $1.87 | $565 |
| Dec 18, 2025 | Wolf Lisa G | Chief Financial Officer | Option exercise(M) | 736 | — | — |
| Dec 18, 2025 | Wolf Lisa G | Chief Financial Officer | Option exercise(M) | 736 | — | $0 |
| Sep 22, 2025 | Ernst Jennifer | Chief Executive Officer, Director | Grant(A) | 23K | — | $0 |
| Aug 6, 2025 | Bolton Sheryle | Director | Grant(A) | 13K | — | $0 |
| Aug 6, 2025 | Valauri Christina Rizopoulos | Director | Grant(A) | 8K | — | $0 |
| Aug 6, 2025 | Zikria Dean | Director | Grant(A) | 8K | — | $0 |
| Aug 6, 2025 | Ernst Jennifer | Chief Executive Officer, Director | Grant(A) | 85K | — | $0 |
| Aug 6, 2025 | Handley Michael K | Chief Operating Officer | Grant(A) | 45K | — | $0 |
| Aug 6, 2025 | Wolf Lisa G | Chief Financial Officer | Grant(A) | 80K | — | $0 |
| Feb 21, 2025 | Handley Michael K | Chief Operating Officer | Grant(A) | 600K | — | $0 |
| Dec 18, 2024 | Valauri Christina Rizopoulos | Director | Grant(A) | 12K | — | $0 |
| Dec 18, 2024 | Bolton Sheryle | Director | Grant(A) | 15K | — | $0 |
| Dec 18, 2024 | Wolf Lisa G | Interim CFO | Grant(A) | 25K | — | $0 |
| Dec 18, 2024 | Ernst Jennifer | Chief Executive Officer, Director | Grant(A) | 500K | — | $0 |
| Dec 18, 2024 | Gurfein Blake | Chief Scientific Officer | Grant(A) | 225K | — | $0 |
| Dec 18, 2024 | Zikria Dean | Director | Grant(A) | 12K | — | $0 |
| Aug 9, 2024 | Drexler Karen | Director | Grant(A) | 3K | — | $0 |
| Aug 9, 2024 | Zikria Dean | Director | Grant(A) | 3K | — | $0 |
| Aug 9, 2024 | Bolton Sheryle | Director | Grant(A) | 3K | — | $0 |
| Aug 9, 2024 | Valauri Christina Rizopoulos | Director | Grant(A) | 3K | — | $0 |
| Mar 12, 2024 | Ernst Jennifer | Chief Executive Officer, Director | Grant(A) | 32K | — | $0 |
| Mar 12, 2024 | Gurfein Blake | Chief Scientific Officer | Grant(A) | 10K | — | $0 |
| Mar 12, 2024 | Bambach Kimberly Ann | Interim CFO | Grant(A) | 8K | — | $0 |
| Jun 14, 2023 | Bolton Sheryle | Director | Grant(A) | 25K | — | $0 |
| Jun 14, 2023 | Zikria Dean | Director | Grant(A) | 25K | — | $0 |
| Jun 14, 2023 | Drexler Karen | Director | Grant(A) | 25K | — | $0 |
| May 8, 2023 | Gurfein Blake | Chief Scientific Officer | Grant(A) | 100K | — | $0 |
| May 8, 2023 | Sabia Ryan | Chief Operating Officer | Grant(A) | 100K | — | $0 |
| May 8, 2023 | Ernst Jennifer | Chief Executive Officer, Director | Grant(A) | 125K | — | $0 |
| Jun 14, 2022 | Zikria Dean | Director | Grant(A) | 40K | — | $0 |
| Jun 14, 2022 | Drexler Karen | Director | Grant(A) | 40K | — | $0 |
| Jun 14, 2022 | Bolton Sheryle | Director | Grant(A) | 40K | — | $0 |
| Apr 1, 2022 | Cai Veronica | Chief Financial Officer | Grant(A) | 118K | — | $0 |
| Feb 4, 2022 | Gurfein Blake | Chief Scientific Officer | Grant(A) | 35K | — | $0 |
| Feb 4, 2022 | Ernst Jennifer | Chief Executive Officer, Director, 10% Owner | Grant(A) | 200K | — | $0 |
| Feb 4, 2022 | Sabia Ryan | Chief Operating Officer | Grant(A) | 50K | — | $0 |
| Dec 14, 2021 | Bolton Sheryle | Director | Grant(A) | 18K | — | $0 |
| Dec 14, 2021 | Sabia Ryan | VP of Sales and Operations | Grant(A) | 25K | — | $0 |
| Dec 14, 2021 | Gurfein Blake | Chief Scientific Officer | Grant(A) | 83K | — | $0 |
| Dec 14, 2021 | Drexler Karen | Director | Grant(A) | 18K | — | $0 |
| Nov 12, 2021 | Ernst Jennifer | Chief Executive Officer, Director, 10% Owner | Conversion(C) | 27K | — | $0 |
| Nov 12, 2021 | Ernst Jennifer | Chief Executive Officer, Director, 10% Owner | Conversion(C) | 1K | — | $0 |
| Nov 12, 2021 | Ernst Jennifer | Chief Executive Officer, Director, 10% Owner | Conversion(C) | 0 | — | $0 |
| Nov 12, 2021 | Ernst Jennifer | Chief Executive Officer, Director, 10% Owner | Conversion(C) | 6K | — | $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).