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 |
|---|---|---|---|---|---|---|
| Dec 20, 2023 | Brida Thomas | See Remarks | Tax withholding(F) | 17K | $0.65 | $11K |
| Dec 20, 2023 | Nussbaum Robert L | Chief Medical Officer | Tax withholding(F) | 17K | $0.65 | $11K |
| Nov 13, 2023 | Sholehvar David | Chief Operating Officer | Grant(A) | 850K | — | $0 |
| Oct 18, 2023 | Brida Thomas | See Remarks | Grant(A) | 230K | — | $0 |
| Oct 2, 2023 | Schrank Ana J. | Chief Financial Officer | Grant(A) | 850K | — | $0 |
| Sep 23, 2023 | Guigley Robert M. | Chief Commercial Officer | Grant(A) | 850K | — | $0 |
| Jun 13, 2023 | Brida Thomas | See Remarks | Sell(S) | 7K | $1.38 | $10K |
| Jun 13, 2023 | Nussbaum Robert L | Chief Medical Officer | Sell(S) | 7K | $1.38 | $10K |
| May 16, 2023 | Brida Thomas | See Remarks | Sell(S) | 26K | $1.20 | $32K |
| May 16, 2023 | Werner Robert F. | Chief Accounting Officer | Sell(S) | 22K | $1.20 | $26K |
| May 16, 2023 | Nussbaum Robert L | Chief Medical Officer | Sell(S) | 26K | $1.20 | $32K |
| May 16, 2023 | Knight Kenneth D. | Chief Executive Officer, Director | Sell(S) | 45K | $1.20 | $55K |
| May 16, 2023 | Wen Yafei | Chief Financial Officer | Sell(S) | 43K | $1.20 | $52K |
| Apr 27, 2023 | Nayak Chitra | Director | Grant(A) | 70K | — | $0 |
| Apr 27, 2023 | Nayak Chitra | Director | Grant(A) | 29K | — | $0 |
| Apr 27, 2023 | Aguiar Eric | Director | Grant(A) | 70K | — | $0 |
| Apr 27, 2023 | Aguiar Eric | Director | Grant(A) | 29K | — | $0 |
| Apr 27, 2023 | Gorjanc Christine Marie | Director | Grant(A) | 70K | — | $0 |
| Apr 27, 2023 | Gorjanc Christine Marie | Director | Grant(A) | 29K | — | $0 |
| Apr 27, 2023 | Osborne William H | Director | Grant(A) | 18K | — | $0 |
| Apr 27, 2023 | Osborne William H | Director | Grant(A) | 70K | — | $0 |
| Apr 27, 2023 | Osborne William H | Director | Grant(A) | 29K | — | $0 |
| Apr 27, 2023 | Osborne William H | Director | Grant(A) | 7K | — | $0 |
| Apr 27, 2023 | Lockhart Kimber D | Director | Grant(A) | 70K | — | $0 |
| Apr 27, 2023 | Lockhart Kimber D | Director | Grant(A) | 29K | — | $0 |
| Apr 27, 2023 | Crouse Geoffrey | Director | Grant(A) | 70K | — | $0 |
| Apr 27, 2023 | Crouse Geoffrey | Director | Grant(A) | 29K | — | $0 |
| Apr 27, 2023 | Scott Randal W. | Director | Grant(A) | 70K | — | $0 |
| Apr 27, 2023 | Scott Randal W. | Director | Grant(A) | 29K | — | $0 |
| Apr 27, 2023 | Scott Randal W. | Director | Grant(A) | 87K | — | $0 |
| Apr 3, 2023 | Brida Thomas | See Remarks | Grant(A) | 300K | — | $0 |
| Apr 3, 2023 | Wen Yafei | Chief Financial Officer | Grant(A) | 300K | — | $0 |
| Apr 3, 2023 | Werner Robert F. | Chief Accounting Officer | Grant(A) | 120K | — | $0 |
| Apr 3, 2023 | Knight Kenneth D. | Chief Executive Officer, Director | Grant(A) | 1.2M | — | $0 |
| Apr 3, 2023 | Nussbaum Robert L | Chief Medical Officer | Grant(A) | 155K | — | $0 |
| Mar 13, 2023 | Knight Kenneth D. | Chief Executive Officer, Director | Sell(S) | 2K | $1.41 | $3K |
| Mar 13, 2023 | Wen Yafei | Chief Financial Officer | Sell(S) | 3K | $1.41 | $4K |
| Mar 13, 2023 | Nussbaum Robert L | Chief Medical Officer | Sell(S) | 3K | $1.41 | $4K |
| Mar 13, 2023 | Brida Thomas | See Remarks | Sell(S) | 3K | $1.41 | $4K |
| Jan 26, 2023 | Osborne William H | Director | Grant(A) | 70K | — | $0 |
| Jan 26, 2023 | Osborne William H | Director | Grant(A) | 29K | — | $0 |
| Dec 19, 2022 | George Sean E | Director | Sell(S) | 11K | $2.08 | $23K |
| Dec 16, 2022 | George Sean E | Director | Sell(S) | 45K | $2.04 | $91K |
| Aug 25, 2022 | Werner Robert F. | Chief Accounting Officer | Sell(S) | 1K | $3.45 | $5K |
| Aug 22, 2022 | Brida Thomas | See Remarks | Grant(A) | 54K | — | $0 |
| Aug 22, 2022 | Wen Yafei | Chief Financial Officer | Grant(A) | 102K | — | $0 |
| Aug 22, 2022 | Werner Robert F. | Chief Accounting Officer | Grant(A) | 54K | — | $0 |
| Aug 22, 2022 | Nussbaum Robert L | Chief Medical Officer | Grant(A) | 54K | — | $0 |
| Aug 16, 2022 | Werner Robert F. | Chief Accounting Officer | Sell(S) | 3K | $4.55 | $15K |
| Aug 16, 2022 | George Sean E | Director | Sell(S) | 22K | $4.55 | $100K |
| Aug 16, 2022 | Nussbaum Robert L | Chief Medical Officer | Sell(S) | 7K | $4.55 | $32K |
| Aug 16, 2022 | Brida Thomas | See remarks | Sell(S) | 7K | $4.55 | $32K |
| Jul 17, 2022 | George Sean E | Director | Grant(A) | 16K | — | $0 |
| Jul 17, 2022 | George Sean E | Director | Grant(A) | 8K | — | $0 |
| Jul 16, 2022 | Scott Randal W. | Director | Grant(A) | 8K | — | $0 |
| Jul 16, 2022 | Scott Randal W. | Director | Grant(A) | 45K | — | $0 |
| Jul 16, 2022 | Scott Randal W. | Director | Grant(A) | 23K | — | $0 |
| Jul 16, 2022 | Scott Randal W. | Director | Grant(A) | 4K | — | $0 |
| Jul 16, 2022 | Knight Kenneth D. | Chief Executive Officer, Director | Grant(A) | 1.0M | — | $0 |
| May 19, 2022 | Werner Robert F. | Chief Accounting Officer | Sell(S) | 3K | $3.40 | $9K |
| May 17, 2022 | Nussbaum Robert L | Chief Medical Officer | Sell(S) | 6K | $3.81 | $23K |
| May 17, 2022 | Wen Yafei | Chief Financial Officer | Sell(S) | 17K | $3.81 | $65K |
| May 17, 2022 | George Sean E | President & CEO, Director | Sell(S) | 18K | $3.81 | $70K |
| May 17, 2022 | Brida Thomas | See Remarks | Sell(S) | 6K | $3.81 | $23K |
| May 17, 2022 | Knight Kenneth D. | Chief Operating Officer | Sell(S) | 28K | $3.81 | $108K |
| May 17, 2022 | Werner Robert F. | Chief Accounting Officer | Sell(S) | 7K | $3.81 | $28K |
| Apr 28, 2022 | Lockhart Kimber D | Director | Grant(A) | 32K | — | $0 |
| Apr 28, 2022 | Lockhart Kimber D | Director | Grant(A) | 16K | — | $0 |
| Apr 28, 2022 | Crouse Geoffrey | Director | Grant(A) | 32K | — | $0 |
| Apr 28, 2022 | Crouse Geoffrey | Director | Grant(A) | 16K | — | $0 |
| Apr 28, 2022 | Gorjanc Christine Marie | Director | Grant(A) | 32K | — | $0 |
| Apr 28, 2022 | Gorjanc Christine Marie | Director | Grant(A) | 16K | — | $0 |
| Apr 28, 2022 | Nayak Chitra | Director | Grant(A) | 32K | — | $0 |
| Apr 28, 2022 | Nayak Chitra | Director | Grant(A) | 16K | — | $0 |
| Apr 28, 2022 | Aguiar Eric | Director | Grant(A) | 11K | — | $0 |
| Apr 28, 2022 | Aguiar Eric | Director | Grant(A) | 32K | — | $0 |
| Apr 28, 2022 | Aguiar Eric | Director | Grant(A) | 6K | — | $0 |
| Apr 28, 2022 | Aguiar Eric | Director | Grant(A) | 16K | — | $0 |
| Apr 9, 2022 | Knight Kenneth D. | Chief Operating Officer | Grant(A) | 225K | — | $0 |
| Apr 9, 2022 | Werner Robert F. | Chief Accounting Officer | Grant(A) | 136K | — | $0 |
| Apr 9, 2022 | Brida Thomas | General Counsel | Grant(A) | 169K | — | $0 |
| Apr 9, 2022 | Nussbaum Robert L | Chief Medical Officer | Grant(A) | 169K | — | $0 |
| Apr 9, 2022 | Wen Yafei | Chief Financial Officer | Grant(A) | 225K | — | $0 |
| Mar 14, 2022 | Nussbaum Robert L | Chief Medical Officer | Sell(S) | 20K | $6.69 | $131K |
| Mar 14, 2022 | Wen Yafei | Chief Financial Officer | Sell(S) | 3K | $6.69 | $22K |
| Mar 14, 2022 | Brida Thomas | General Counsel | Sell(S) | 18K | $6.69 | $120K |
| Mar 14, 2022 | George Sean E | President & CEO, Director | Sell(S) | 31K | $6.69 | $210K |
| Mar 14, 2022 | Knight Kenneth D. | Chief Operating Officer | Sell(S) | 2K | $6.69 | $16K |
| Mar 12, 2022 | Nussbaum Robert L | Chief Medical Officer | Grant(A) | 15K | — | $0 |
| Mar 12, 2022 | Wen Yafei | Chief Financial Officer | Grant(A) | 15K | — | $0 |
| Mar 12, 2022 | Brida Thomas | General Counsel | Grant(A) | 15K | — | $0 |
| Mar 12, 2022 | George Sean E | President & CEO, Director | Grant(A) | 44K | — | $0 |
| Mar 12, 2022 | Knight Kenneth D. | Chief Operating Officer | Grant(A) | 15K | — | $0 |
| Nov 11, 2021 | Nussbaum Robert L | Chief Medical Officer | Sell(S) | 30K | $21.89 | $650K |
| Nov 11, 2021 | Nussbaum Robert L | Chief Medical Officer | Option exercise(M) | 16K | $10.23 | $168K |
| Nov 11, 2021 | Nussbaum Robert L | Chief Medical Officer | Option exercise(M) | 13K | $9.90 | $131K |
| Nov 11, 2021 | Nussbaum Robert L | Chief Medical Officer | Option exercise(M) | 13K | — | $0 |
| Nov 11, 2021 | Nussbaum Robert L | Chief Medical Officer | Option exercise(M) | 16K | — | $0 |
| Oct 22, 2021 | George Sean E | President & CEO, Director | Sell(S) | 4K | $28.06 | $103K |
| Sep 27, 2021 | George Sean E | President & CEO, Director | Option exercise(M) | 50K | $3.42 | $171K |
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).