Janux Therapeutics's top three insider shareholders as of April 17, 2026 are Ventures Xi, L.P. Avalon (TenPercentOwner, 7.38Mn shares), Jay Lichter (Director, 7.24Mn shares), Tighe Reardon (Acting Chief Financial Officer, 3.97Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Ventures Xi, L.P. Avalon | - | 2,071,799 | 5,305,966 | 18 Oct, 2024 |
| Jay Lichter | - | 0 | 7,244,907 | 05 Jun, 2024 |
| Tighe Reardon | Acting Chief Financial Officer | 0 | 3,973,691 | 05 Jun, 2024 |
| Jay Lichter | - | 0 | 849,854 | 15 Nov, 2023 |
| Ventures Xi, L.P. Avalon | - | 0 | 849,854 | 13 Nov, 2023 |
| Tighe Reardon | Acting Chief Financial Officer | 0 | 849,854 | 15 Nov, 2023 |
| David Alan Campbell | President And Ceo | 381,582 | 0 | 02 Jan, 2025 |
| Peter A. Thompson | - | 0 | 231,098 | 30 Dec, 2021 |
| Thomas Diraimondo | Chief Scientific Officer | 155,825 | 0 | 02 Jan, 2026 |
| Sheila Gujrathi | - | 118,889 | 0 | 13 Jun, 2025 |
| Charles M. Winter | Chief Technical Officer | 106,321 | 0 | 02 Jan, 2026 |
| Andrew Hollman Meyer | Chief Business Officer | 83,095 | 0 | 02 Jan, 2026 |
| Janeen Noel Doyle | Chief Corp. Bus. Dev. Ofcr | 80,000 | 0 | 02 Jan, 2026 |
| Vickie L Capps | - | 74,098 | 0 | 13 Jun, 2025 |
| Zachariah Mciver | Chief Medical Officer | 52,286 | 0 | 02 Jan, 2026 |
| William Go | Chief Medical Officer | 44,000 | 0 | 04 Feb, 2026 |
| Maria Dobek | Vice President, Accounting | 34,308 | 0 | 02 Jan, 2026 |
| Byron Robinson | Chief Strategy Officer | 28,000 | 0 | 03 Jan, 2025 |
| Eric Dobmeier | - | 9,981 | 0 | 13 Jun, 2025 |
| Natasha Hernday | - | 8,731 | 0 | 13 Jun, 2025 |
| Jay Lichter | - | 7,000 | 0 | 24 Oct, 2024 |
| Alana B. Mcnulty | - | 6,250 | 0 | 13 Jun, 2025 |
| Winston Kung | - | 6,250 | 0 | 13 Jun, 2025 |
| Jake Simson | - | 6,250 | 0 | 13 Jun, 2025 |
| Ronald W Barrett | - | 6,250 | 0 | 13 Jun, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Feb, 2026 | William Go | Common Stock | A | 44,000 | $0.00 | 44,000 | D | A |
| 02 Feb, 2026 | William Go | Stock option (right to buy) | A | 154,000 | $0.00 | 154,000 | D | A |
| 02 Jan, 2026 | Janeen Noel Doyle | Common Stock | A | 36,000 | $0.00 | 80,000 | D | A |
| 02 Jan, 2026 | Thomas Diraimondo | Common Stock | D | 2,505 | $13.73 | 124,425 | D | S |
| 02 Jan, 2026 | Andrew Hollman Meyer | Common Stock | D | 1,879 | $13.73 | 83,095 | D | S |
| 02 Jan, 2026 | Charles M. Winter | Common Stock | D | 2,401 | $13.73 | 77,721 | D | S |
| 02 Jan, 2026 | Zachariah Mciver | Common Stock | D | 2,714 | $13.73 | 23,286 | D | S |
| 02 Jan, 2026 | Maria Dobek | Common Stock | D | 1,462 | $13.73 | 15,373 | D | S |
| 02 Jan, 2026 | Janeen Noel Doyle | Stock option (right to buy) | A | 126,000 | $0.00 | 126,000 | D | A |
| 02 Jan, 2026 | Zachariah Mciver | Common Stock | A | 29,000 | $0.00 | 52,286 | D | A |
| 02 Jan, 2026 | Maria Dobek | Common Stock | A | 18,935 | $0.00 | 34,308 | D | A |
| 02 Jan, 2026 | Charles M. Winter | Common Stock | A | 28,600 | $0.00 | 106,321 | D | A |
| 02 Jan, 2026 | Thomas Diraimondo | Common Stock | A | 31,400 | $0.00 | 155,825 | D | A |
| 02 Jan, 2026 | Charles M. Winter | Stock option (right to buy) | A | 100,100 | $0.00 | 100,100 | D | A |
| 02 Jan, 2026 | Maria Dobek | Stock option (right to buy) | A | 42,600 | $0.00 | 42,600 | D | A |
| 02 Jan, 2026 | Zachariah Mciver | Stock option (right to buy) | A | 101,500 | $0.00 | 101,500 | D | A |
| 02 Jan, 2026 | Thomas Diraimondo | Stock option (right to buy) | A | 109,900 | $0.00 | 109,900 | D | A |
| 01 Dec, 2025 | Andrew Hollman Meyer | Common Stock | A | 3,333 | $10.59 | 88,307 | D | M |
| 01 Dec, 2025 | Andrew Hollman Meyer | Common Stock | D | 2,700 | $32.85 | 85,607 | D | S |
| 01 Dec, 2025 | Andrew Hollman Meyer | Common Stock | D | 633 | $33.52 | 84,974 | D | S |