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 |
|---|---|---|---|---|---|---|
| Jul 8, 2026 | Tang Kevin | 10% Owner | Buy(P) | 14K | $2.46 | $35K |
| Jul 7, 2026 | Tang Kevin | 10% Owner | Buy(P) | 16K | $2.48 | $39K |
| Jul 6, 2026 | Tang Kevin | 10% Owner | Buy(P) | 27K | $2.49 | $67K |
| Jul 2, 2026 | Tang Kevin | 10% Owner | Buy(P) | 10K | $2.49 | $24K |
| Jul 1, 2026 | Tang Kevin | 10% Owner | Buy(P) | 72K | $2.49 | $178K |
| Jul 1, 2026 | Crandell Keith | 10% Owner | Option exercise(M) | 16K | $1.03 | $16K |
| Jul 1, 2026 | Crandell Keith | 10% Owner | Sell(S) | 16K | $2.49 | $40K |
| Jul 1, 2026 | Crandell Keith | 10% Owner | Option exercise(M) | 16K | — | $0 |
| Jul 1, 2026 | ARCH Venture Fund IX, L.P. | 10% Owner | Option exercise(M) | 16K | $1.03 | $16K |
| Jul 1, 2026 | ARCH Venture Fund IX, L.P. | 10% Owner | Sell(S) | 16K | $2.49 | $40K |
| Jul 1, 2026 | ARCH Venture Fund IX, L.P. | 10% Owner | Option exercise(M) | 16K | — | $0 |
| Jun 30, 2026 | Tang Kevin | 10% Owner | Buy(P) | 26K | $2.54 | $66K |
| Jun 30, 2026 | Tang Kevin | 10% Owner | Buy(P) | 100 | $2.50 | $250 |
| Jun 29, 2026 | Tang Kevin | 10% Owner | Buy(P) | 64K | $2.47 | $158K |
| Jun 29, 2026 | Tang Kevin | 10% Owner | Buy(P) | 777 | $2.48 | $2K |
| Jun 26, 2026 | Tang Kevin | 10% Owner | Buy(P) | 75K | $2.55 | $191K |
| Jun 26, 2026 | Tang Kevin | 10% Owner | Buy(P) | 134 | $2.54 | $340 |
| Jun 25, 2026 | Tang Kevin | 10% Owner | Buy(P) | 146K | $2.48 | $362K |
| Jun 25, 2026 | Tang Kevin | 10% Owner | Buy(P) | 510 | $2.56 | $1K |
| Jun 15, 2026 | Lew Jennifer | Director | Grant(A) | 32K | — | $0 |
| Jun 15, 2026 | Lim Jonathan E | Director | Grant(A) | 48K | — | $0 |
| Jun 15, 2026 | Christensen James | Director | Grant(A) | 32K | — | $0 |
| Jun 15, 2026 | Whiting Nancy | Director | Grant(A) | 32K | — | $0 |
| Jan 23, 2026 | Hinkle David A | See Remarks | Grant(A) | 140K | — | $0 |
| Jan 23, 2026 | Hornby Zachary | President & CEO, Director | Grant(A) | 600K | — | $0 |
| Jan 23, 2026 | Doebele Robert | Chief Medical Officer | Grant(A) | 230K | — | $0 |
| Jan 23, 2026 | Hassig Christian | Chief Scientific Officer | Grant(A) | 230K | — | $0 |
| Jan 23, 2026 | Oien Jessica | See Remarks | Grant(A) | 220K | — | $0 |
| Jun 23, 2025 | Whiting Nancy | Director | Grant(A) | 16K | — | $0 |
| Jun 23, 2025 | Burow Kristina | Director, 10% Owner | Grant(A) | 16K | — | $0 |
| Jun 23, 2025 | Lim Jonathan E | Director | Grant(A) | 24K | — | $0 |
| Jun 23, 2025 | Lew Jennifer | Director | Grant(A) | 16K | — | $0 |
| Jun 23, 2025 | Christensen James | Director | Grant(A) | 16K | — | $0 |
| Jun 23, 2025 | Brennan Christine | Director | Grant(A) | 16K | — | $0 |
| Feb 3, 2025 | Doebele Robert | Chief Medical Officer | Grant(A) | 180K | — | $0 |
| Jan 22, 2025 | Oien Jessica | See Remarks | Grant(A) | 90K | — | $0 |
| Jan 22, 2025 | Hornby Zachary | President & CEO, Director | Grant(A) | 295K | — | $0 |
| Jan 22, 2025 | Hassig Christian | Chief Scientific Officer | Grant(A) | 95K | — | $0 |
| Jan 22, 2025 | Hinkle David A | See Remarks | Grant(A) | 65K | — | $0 |
| Aug 19, 2024 | Rubin Jami | Chief Financial Officer | Disposed to issuer(D) | 197K | — | — |
| Aug 19, 2024 | Rubin Jami | Chief Financial Officer | Disposed to issuer(D) | 51K | — | — |
| Aug 19, 2024 | Rubin Jami | Chief Financial Officer | Grant(A) | 32K | — | — |
| Aug 19, 2024 | Rubin Jami | Chief Financial Officer | Grant(A) | 197K | — | — |
| Aug 19, 2024 | Rubin Jami | Chief Financial Officer | Grant(A) | 51K | — | — |
| Aug 19, 2024 | Rubin Jami | Chief Financial Officer | Disposed to issuer(D) | 32K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Disposed to issuer(D) | 103K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Disposed to issuer(D) | 10K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Disposed to issuer(D) | 95K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Disposed to issuer(D) | 68K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Grant(A) | 42K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Grant(A) | 103K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Grant(A) | 10K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Grant(A) | 95K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Grant(A) | 68K | — | — |
| Aug 19, 2024 | Wagner Klaus W. | Chief Medical Officer | Disposed to issuer(D) | 42K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Disposed to issuer(D) | 20K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Disposed to issuer(D) | 55K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Disposed to issuer(D) | 37K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Disposed to issuer(D) | 23K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Disposed to issuer(D) | 82K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Grant(A) | 20K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Grant(A) | 55K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Grant(A) | 37K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Grant(A) | 23K | — | — |
| Aug 19, 2024 | Abdollahian Neil | Chief Business Officer | Grant(A) | 82K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Grant(A) | 162K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Grant(A) | 257K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Grant(A) | 471K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Grant(A) | 256K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Disposed to issuer(D) | 162K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Disposed to issuer(D) | 257K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Disposed to issuer(D) | 471K | — | — |
| Aug 19, 2024 | Hornby Zachary | President & CEO, Director | Disposed to issuer(D) | 256K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Grant(A) | 26K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Grant(A) | 42K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Grant(A) | 10K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Disposed to issuer(D) | 10K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Grant(A) | 32K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Grant(A) | 29K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Disposed to issuer(D) | 42K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Disposed to issuer(D) | 36K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Disposed to issuer(D) | 26K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Disposed to issuer(D) | 29K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Disposed to issuer(D) | 32K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Grant(A) | 16K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Grant(A) | 36K | — | — |
| Aug 19, 2024 | Oien Jessica | See Remarks | Disposed to issuer(D) | 16K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Grant(A) | 10K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Grant(A) | 63K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Disposed to issuer(D) | 10K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Disposed to issuer(D) | 63K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Disposed to issuer(D) | 95K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Disposed to issuer(D) | 76K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Disposed to issuer(D) | 49K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Grant(A) | 49K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Grant(A) | 76K | — | — |
| Aug 19, 2024 | Hassig Christian | Chief Scientific Officer | Grant(A) | 95K | — | — |
| Jun 20, 2024 | Lim Jonathan E | Director | Grant(A) | 7K | — | $0 |
| Apr 2, 2024 | ARCH Venture Partners IX, LLC | 10% Owner | Buy(P) | 67K | $16.00 | $1.1M |
| Apr 2, 2024 | ARCH Venture Partners IX, LLC | 10% Owner | Conversion(C) | 1.0M | — | — |
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 → 2026-07-11. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).