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 3, 2025 | Bernstein Bruce | Director | Grant(A) | 800 | — | $0 |
| Apr 3, 2025 | Schechter Jonathan | Director | Grant(A) | 800 | — | $0 |
| Apr 3, 2025 | Singer William S. | Director | Grant(A) | 800 | — | $0 |
| Apr 8, 2024 | Bernstein Bruce | Director | Grant(A) | 800 | — | $0 |
| Apr 8, 2024 | Schechter Jonathan | Director | Grant(A) | 800 | — | $0 |
| Apr 8, 2024 | Silverman Joshua | Director | Grant(A) | 800 | — | $0 |
| Apr 8, 2024 | Singer William S. | Director | Grant(A) | 800 | — | $0 |
| Mar 29, 2023 | Silverman Joshua | Director | Grant(A) | 20K | — | $0 |
| Mar 29, 2023 | Bernstein Bruce | Director | Grant(A) | 20K | — | $0 |
| Mar 29, 2023 | Singer William S. | Director | Grant(A) | 20K | — | $0 |
| Mar 29, 2023 | Schechter Jonathan | Director | Grant(A) | 20K | — | $0 |
| Dec 16, 2022 | Tuchman Alan J | Chief Executive Officer, Director | Sell(S) | 27K | $1.17 | $32K |
| Dec 16, 2022 | Bernstein Bruce | Director | Sell(S) | 23K | $1.17 | $26K |
| Dec 16, 2022 | Alkon Daniel L. | President and CSO, Director | Sell(S) | 20K | $1.17 | $23K |
| Dec 16, 2022 | Schechter Jonathan | Director | Sell(S) | 20K | $1.17 | $24K |
| Dec 16, 2022 | Silverman Joshua | Director | Sell(S) | 19K | $1.17 | $22K |
| Dec 16, 2022 | Weinstein Robert | Chief Financial Officer | Sell(S) | 27K | $1.17 | $32K |
| Dec 16, 2022 | Singer William S. | Director | Sell(S) | 27K | $1.17 | $32K |
| Nov 15, 2022 | Schechter Jonathan | Director | Grant(A) | 72K | — | $0 |
| Nov 15, 2022 | Tuchman Alan J | Chief Executive Officer, Director | Grant(A) | 69K | — | $0 |
| Nov 15, 2022 | Bernstein Bruce | Director | Grant(A) | 75K | — | $0 |
| Nov 15, 2022 | Alkon Daniel L. | See Remark, Director | Grant(A) | 75K | — | $0 |
| Nov 15, 2022 | Silverman Joshua | Director | Grant(A) | 75K | — | $0 |
| Nov 15, 2022 | Singer William S. | Director | Grant(A) | 75K | — | $0 |
| Nov 15, 2022 | Weinstein Robert | Chief Financial Officer | Grant(A) | 75K | — | $0 |
| Apr 5, 2022 | Bernstein Bruce | Director | Other(J) | 0 | — | — |
| Apr 5, 2022 | Schechter Jonathan | Director | Other(J) | 0 | — | — |
| Apr 5, 2022 | Silverman Joshua | Director | Other(J) | 0 | — | — |
| Apr 5, 2022 | Singer William S. | Director | Other(J) | 0 | — | — |
| Feb 16, 2022 | Tuchman Alan J | Chief Executive Officer, Director | Grant(A) | 6K | — | $0 |
| Jul 13, 2021 | Tuchman Alan J | Chief Executive Officer, Director | Grant(A) | 60K | — | $0 |
| Jul 13, 2021 | Singer William S. | Director | Grant(A) | 60K | — | $0 |
| Jul 13, 2021 | Perry George | Director | Grant(A) | 40K | — | $0 |
| Jul 13, 2021 | Schechter Jonathan | Director | Grant(A) | 45K | — | $0 |
| Jul 13, 2021 | Weinstein Robert | Chief Financial Officer | Grant(A) | 60K | — | $0 |
| Jul 13, 2021 | Bernstein Bruce | Director | Grant(A) | 50K | — | $0 |
| Jul 13, 2021 | Silverman Joshua | Director | Grant(A) | 42K | — | $0 |
| Jul 13, 2021 | Alkon Daniel L. | President and CSO, Director | Grant(A) | 44K | — | $0 |
| Jun 14, 2021 | Alkon Daniel L. | Chief Scientific Officer, Director | Buy(P) | 10K | $8.26 | $83K |
| Jun 14, 2021 | Silverman Joshua | Director | Buy(P) | 10K | $8.30 | $83K |
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).