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 |
|---|---|---|---|---|---|---|
| Feb 9, 2023 | DelAversano Robert J | VP, Finance | Sell(S) | 40 | $1.37 | $55 |
| Nov 4, 2022 | DelAversano Robert J | VP, Finance | Sell(S) | 283 | $0.37 | $105 |
| Oct 7, 2022 | Foster Spahr Stephany | Director | Grant(A) | 50K | — | $0 |
| Aug 5, 2022 | DelAversano Robert J | VP, Finance | Sell(S) | 284 | $0.71 | $202 |
| May 6, 2022 | DelAversano Robert J | VP, Finance | Sell(S) | 274 | $0.83 | $227 |
| May 2, 2022 | Arch Robert H. | President and CEO | Grant(A) | 700K | — | $0 |
| Feb 9, 2022 | DelAversano Robert J | VP, Finance | Sell(S) | 409 | $0.88 | $360 |
| Nov 1, 2021 | DelAversano Robert J | VP, Finance | Sell(S) | 343 | $1.75 | $600 |
| Aug 23, 2021 | Dalesandro Margaret | Director | Buy(P) | 20K | $1.89 | $38K |
| Aug 23, 2021 | Zhao Yuhang | Director | Buy(P) | 4K | $1.88 | $8K |
| Aug 20, 2021 | Zhao Yuhang | Director | Buy(P) | 8K | $1.94 | $16K |
| Aug 2, 2021 | DelAversano Robert J | VP, Finance | Sell(S) | 412 | $2.18 | $898 |
| Jun 28, 2021 | Demesa James M | Director | Grant(A) | 25K | — | $0 |
| Jun 28, 2021 | DelAversano Robert J | Vice President, Finance | Grant(A) | 35K | — | $0 |
| Jun 28, 2021 | Leuthner Brian A | Interim CEO | Grant(A) | 33K | — | $0 |
| Jun 28, 2021 | Leuthner Brian A | Interim CEO | Grant(A) | 192K | — | $0 |
| Jun 28, 2021 | Leuthner Brian A | Interim CEO | Sell(S) | 14K | $3.16 | $43K |
| Jun 28, 2021 | Smith Kevin Raymond Merrill | Director | Grant(A) | 25K | — | $0 |
| Jun 28, 2021 | Zhou Chao | Director, 10% Owner | Grant(A) | 25K | — | $0 |
| Jun 28, 2021 | Lyerly Herbert Kim | Director | Grant(A) | 25K | — | $0 |
| Jun 28, 2021 | Zhao Yuhang | Director | Grant(A) | 25K | — | $0 |
| Jun 28, 2021 | Ward Robert | Director | Grant(A) | 25K | — | $0 |
| Jun 28, 2021 | Dalesandro Margaret | Director | Grant(A) | 38K | — | $0 |
| Jun 28, 2021 | Kim Joon | Director | Grant(A) | 25K | — | $0 |
| May 3, 2021 | DelAversano Robert J | VP, Finance | Sell(S) | 453 | $4.86 | $2K |
| Apr 30, 2021 | O'Connor Daniel J. | CEO and President, Director | Sell(S) | 3K | $4.86 | $15K |
| Apr 16, 2021 | Sirtex Medical US Holdings, Inc. | 10% Owner | Buy(P) | 282K | $3.45 | $973K |
| Apr 16, 2021 | Sirtex Medical US Holdings, Inc. | 10% Owner | Buy(P) | 1.4M | $3.45 | $4.9M |
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).