Janux Therapeutics's three largest insider shareholders as of September 29, 2026 are Capital Management, L.P. Ra (Director, 8.12Mn shares), Ventures Xi, L.P. Avalon (TenPercentOwner, 7.38Mn shares), Jay Lichter (Director, 7.24Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Ventures Xi, L.P. Avalon | TenPercentOwner | 2,071,799 | 5,305,966 | 7,377,765 | 57.0% | 18 Oct, 2024 |
| 2 | Tighe Reardon | Acting Chief Financial Officer | 0 | 3,973,691 | 3,973,691 | 30.7% | 05 Jun, 2024 |
| 3 | David Alan Campbell | President And Ceo | 264,742 | 0 | 264,742 | 2.0% | 31 Jul, 2026 |
| 4 | Advisors Llc Orbimed | Director | 0 | 231,098 | 231,098 | 1.8% | 30 Dec, 2021 |
| 5 | Peter A. Thompson | Director | 0 | 231,098 | 231,098 | 1.8% | 30 Dec, 2021 |
| 6 | Thomas Diraimondo | Chief Scientific Officer | 155,825 | 0 | 155,825 | 1.2% | 02 Jan, 2026 |
| 7 | Sheila Gujrathi | Director | 118,889 | 0 | 118,889 | 0.9% | 13 Jun, 2025 |
| 8 | Charles M. Winter | Chief Technical Officer | 106,321 | 0 | 106,321 | 0.8% | 02 Jan, 2026 |
| 9 | Andrew Hollman Meyer | Chief Business Officer | 83,095 | 0 | 83,095 | 0.6% | 02 Jan, 2026 |
| 10 | Vickie L Capps | Director | 79,598 | 0 | 79,598 | 0.6% | 12 Jun, 2026 |
| 11 | Janeen Noel Doyle | Chief Corp. Bus. Dev. Ofcr | 75,941 | 0 | 75,941 | 0.6% | 04 Jun, 2026 |
| 12 | Zachariah Mciver | Chief Medical Officer | 52,286 | 0 | 52,286 | 0.4% | 02 Jan, 2026 |
| 13 | William Go | Chief Medical Officer | 44,000 | 0 | 44,000 | 0.3% | 04 Feb, 2026 |
| 14 | Maria Dobek | Vice President, Accounting | 32,270 | 0 | 32,270 | 0.2% | 13 May, 2026 |
| 15 | Byron Robinson | Chief Strategy Officer | 28,000 | 0 | 28,000 | 0.2% | 03 Jan, 2025 |
| 16 | Eric Dobmeier | Director | 15,481 | 0 | 15,481 | 0.1% | 12 Jun, 2026 |
| 17 | Natasha Hernday | Director | 15,481 | 0 | 15,481 | 0.1% | 12 Jun, 2026 |
| 18 | Jake Simson | Director | 11,750 | 0 | 11,750 | 0.1% | 12 Jun, 2026 |
| 19 | Winston Kung | Director | 11,750 | 0 | 11,750 | 0.1% | 12 Jun, 2026 |
| 20 | Ronald W Barrett | Director | 11,750 | 0 | 11,750 | 0.1% | 12 Jun, 2026 |
| 21 | Capital Management, L.P. Ra | Director, TenPercentOwner | 0 | 11,750 | 11,750 | 0.1% | 12 Jun, 2026 |
| 22 | Jay Lichter | TenPercentOwner | 7,000 | 0 | 7,000 | 0.1% | 24 Oct, 2024 |
| 23 | Alana B. Mcnulty | Director | 6,250 | 0 | 6,250 | 0.0% | 13 Jun, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 31 Jul, 2026 | David Alan Campbell | President And Ceo | Disposed G | 123,840 | $0.00 | $0 | 264,742 | Direct |
| 08 Jul, 2026 | David Alan Campbell | President And Ceo | Acquired M | 7,000 | $4.21 | $29.47K | 388,582 | Direct |
| 08 Jul, 2026 | David Alan Campbell | President And Ceo | Disposed M | 7,000 | $0.00 | $0 | 697,550 | Direct |
| 11 Jun, 2026 | Ronald W Barrett | Director | Acquired A | 5,500 | $0.00 | $0 | 11,750 | Direct |
| 11 Jun, 2026 | Natasha Hernday | Director | Acquired A | 5,500 | $0.00 | $0 | 15,481 | Direct |
| 11 Jun, 2026 | Vickie L Capps | Director | Acquired A | 5,500 | $0.00 | $0 | 79,598 | Direct |
| 11 Jun, 2026 | Capital Management, L.P. Ra | Director, TenPercentOwner | Acquired A | 5,500 | $0.00 | $0 | 11,750 | Indirect |
| 11 Jun, 2026 | Jake Simson | Director | Acquired A | 5,500 | $0.00 | $0 | 11,750 | Direct |
| 11 Jun, 2026 | Eric Dobmeier | Director | Acquired A | 5,500 | $0.00 | $0 | 15,481 | Direct |
| 11 Jun, 2026 | Winston Kung | Director | Acquired A | 5,500 | $0.00 | $0 | 11,750 | Direct |
| 11 Jun, 2026 | Ronald W Barrett | Director | Acquired A | 15,500 | $0.00 | $0 | 15,500 | Direct |
| 11 Jun, 2026 | Eric Dobmeier | Director | Acquired A | 15,500 | $0.00 | $0 | 15,500 | Direct |
| 11 Jun, 2026 | Vickie L Capps | Director | Acquired A | 15,500 | $0.00 | $0 | 15,500 | Direct |
| 11 Jun, 2026 | Winston Kung | Director | Acquired A | 15,500 | $0.00 | $0 | 15,500 | Direct |
| 11 Jun, 2026 | Natasha Hernday | Director | Acquired A | 15,500 | $0.00 | $0 | 15,500 | Direct |
| 11 Jun, 2026 | Jake Simson | Director | Acquired A | 15,500 | $0.00 | $0 | 15,500 | Direct |
| 11 Jun, 2026 | Capital Management, L.P. Ra | Director, TenPercentOwner | Acquired A | 15,500 | $0.00 | $0 | 15,500 | Indirect |
| 02 Jun, 2026 | Janeen Noel Doyle | Chief Corp. Bus. Dev. Ofcr | Disposed S | 4,059 | $14.03 | $56.94K | 75,941 | Direct |
| 11 May, 2026 | Maria Dobek | Vice President, Accounting | Disposed S | 2,038 | $14.17 | $28.88K | 32,270 | Direct |
| 02 Feb, 2026 | William Go | Chief Medical Officer | Acquired A | 44,000 | $0.00 | $0 | 44,000 | Direct |