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 |
|---|---|---|---|---|---|---|
| Aug 29, 2024 | Ma-Weaver Jacob | Insider | Other(J) | 12K | — | — |
| Aug 29, 2024 | Ma-Weaver Jacob | Insider | Other(J) | 6K | — | — |
| Aug 29, 2024 | Ma-Weaver Jacob | Insider | Other(J) | 6K | — | — |
| Aug 16, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 5K | $2.93 | $16K |
| Aug 16, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 428 | $2.98 | $1K |
| Jul 25, 2024 | Janus Henderson Group PLC | 10% Owner | Buy(P) | 30K | $3.05 | $92K |
| Jul 24, 2024 | Janus Henderson Group PLC | 10% Owner | Buy(P) | 7K | $3.16 | $22K |
| Jul 24, 2024 | Janus Henderson Group PLC | 10% Owner | Buy(P) | 18K | $3.18 | $57K |
| Jul 24, 2024 | Janus Henderson Group PLC | 10% Owner | Buy(P) | 165K | $3.20 | $528K |
| Jul 11, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 95K | $3.45 | $326K |
| Jul 10, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 22K | $3.46 | $76K |
| Jul 10, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 34K | $3.46 | $116K |
| Jul 9, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 17K | $3.43 | $58K |
| Jul 8, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 30K | $3.41 | $102K |
| Jul 8, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 18K | $3.54 | $62K |
| Jul 5, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 23K | $3.43 | $80K |
| Jul 5, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 5K | $3.41 | $17K |
| Jul 3, 2024 | Janus Henderson Biotech Innovation Master Fund Ltd | 10% Owner | Buy(P) | 166K | $3.55 | $589K |
| Jan 30, 2024 | Woosley Raymond L. | Director | Grant(A) | 6K | — | $0 |
| Jan 30, 2024 | Grais Linda | Director | Grant(A) | 6K | — | $0 |
| Jan 30, 2024 | Conway Robert E | Director | Grant(A) | 6K | — | $0 |
| Jan 30, 2024 | Flynn James P | Director | Grant(A) | 6K | — | $0 |
| Jan 30, 2024 | Mitchell Daniel J | Director | Grant(A) | 6K | — | $0 |
| Jan 30, 2024 | Hove Anders D | Director | Grant(A) | 6K | — | $0 |
| Jan 30, 2024 | Ma-Weaver Jacob | Director, 10% Owner | Grant(A) | 6K | — | $0 |
| Dec 16, 2022 | Funicular Funds, LP | 10% Owner | Option exercise(X) | 1.4M | $2.50 | $3.5M |
| Dec 16, 2022 | Funicular Funds, LP | 10% Owner | Expiration(E) | 300 | — | $0 |
| Dec 16, 2022 | Funicular Funds, LP | 10% Owner | Option exercise(X) | 14K | — | $0 |
| Dec 15, 2022 | Funicular Funds, LP | 10% Owner | Grant(A) | 6K | — | $0 |
| Dec 15, 2022 | Flynn James P | Director | Grant(A) | 12K | — | $0 |
| Dec 15, 2022 | Conway Robert E | Director | Grant(A) | 6K | — | $0 |
| Dec 15, 2022 | Grais Linda | Director | Grant(A) | 6K | — | $0 |
| Dec 15, 2022 | Hove Anders D | Director | Grant(A) | 6K | — | $0 |
| Dec 15, 2022 | Mitchell Daniel J | Director | Grant(A) | 6K | — | $0 |
| Dec 15, 2022 | Woosley Raymond L. | Director | Grant(A) | 6K | — | $0 |
| Dec 8, 2022 | Dekker C. Jeffrey | Chief Financial Officer | Grant(A) | 40K | — | $0 |
| Dec 8, 2022 | Keuer Thomas A | Chief Operating Officer | Grant(A) | 40K | — | $0 |
| Jul 1, 2022 | Funicular Funds, LP | 10% Owner | Other(J) | 2.6M | — | $0 |
| Jul 1, 2022 | Funicular Funds, LP | 10% Owner | Other(J) | 2.6M | — | $0 |
| Jul 1, 2022 | Funicular Funds, LP | 10% Owner | Other(J) | 15K | — | $0 |
| Jul 1, 2022 | Funicular Funds, LP | 10% Owner | Other(J) | 15K | — | $0 |
| Jun 15, 2022 | Ma-Weaver Jacob | Director, 10% Owner | Grant(A) | 12K | — | $0 |
| May 25, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 65K | $2.32 | $150K |
| May 24, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 18K | $2.29 | $41K |
| May 23, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 2K | $2.30 | $5K |
| May 19, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 1 | $2.25 | $2 |
| May 18, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 13K | $2.30 | $30K |
| May 16, 2022 | Funicular Fund, LP | Insider | Buy(P) | 43K | $2.30 | $99K |
| May 13, 2022 | Funicular Fund, LP | Insider | Buy(P) | 14K | $2.29 | $32K |
| May 12, 2022 | Funicular Fund, LP | Insider | Buy(P) | 28K | $2.27 | $63K |
| May 11, 2022 | Funicular Fund, LP | Insider | Buy(P) | 25K | $2.29 | $56K |
| May 10, 2022 | Funicular Fund, LP | Insider | Buy(P) | 21K | $2.28 | $48K |
| May 9, 2022 | Funicular Fund, LP | Insider | Buy(P) | 49K | $2.27 | $112K |
| May 6, 2022 | Funicular Fund, LP | Insider | Buy(P) | 58K | $2.28 | $132K |
| May 5, 2022 | Funicular Fund, LP | Insider | Buy(P) | 17K | $2.27 | $38K |
| May 2, 2022 | Funicular Fund, LP | Insider | Buy(P) | 1K | $2.32 | $3K |
| Apr 29, 2022 | Funicular Fund, LP | Insider | Buy(P) | 9K | $2.30 | $21K |
| Apr 28, 2022 | Funicular Fund, LP | Insider | Buy(P) | 23K | $2.32 | $54K |
| Apr 25, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 14K | $2.29 | $31K |
| Apr 25, 2022 | Ma-Weaver Jacob | Insider | Sell(S) | 8K | $64.00 | $480K |
| Apr 19, 2022 | Funicular Fund, LP | Insider | Sell(S) | 7K | $64.00 | $448K |
| Apr 18, 2022 | Funicular Fund, LP | Insider | Buy(P) | 9K | $2.31 | $21K |
| Apr 14, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 17K | $2.33 | $41K |
| Apr 12, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 69K | $2.32 | $161K |
| Apr 11, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 5K | $2.32 | $11K |
| Apr 8, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 31K | $2.31 | $71K |
| Apr 7, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 27K | $2.32 | $64K |
| Apr 6, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 27K | $2.30 | $62K |
| Apr 5, 2022 | Ma-Weaver Jacob | Insider | Buy(P) | 50K | $2.30 | $114K |
| Apr 4, 2022 | Funicular Fund, LP | Insider | Buy(P) | 122K | $2.26 | $276K |
| Dec 14, 2021 | Bristow Michael R | Pres. & Chief Executive Offic, Director | Grant(A) | 95K | — | $0 |
| Dec 14, 2021 | Dekker C. Jeffrey | Chief Financial Officer | Grant(A) | 18K | — | $0 |
| Dec 14, 2021 | Keuer Thomas A | Chief Operating Officer | Grant(A) | 35K | — | $0 |
| Dec 14, 2021 | Ozeroff Christopher David | S.V.P., General Counsel | Grant(A) | 28K | — | $0 |
| Nov 22, 2021 | Ozeroff Christopher David | S.V.P., General Counsel | Buy(P) | 50K | $2.26 | $113K |
| May 12, 2021 | Conway Robert E | Director | Buy(P) | 10K | $3.19 | $32K |
| May 5, 2021 | Conway Robert E | Director | Buy(P) | 10K | $3.23 | $32K |
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).