As of August 29, 2026, Janux Therapeutics's top three insider holders are Ventures Xi, L.P. Avalon (TenPercentOwner, 7.38Mn 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 | 58.1% | 18 Oct, 2024 |
| 2 | Tighe Reardon | Acting Chief Financial Officer | 0 | 3,973,691 | 3,973,691 | 31.3% | 05 Jun, 2024 |
| 3 | David Alan Campbell | President And Ceo | 264,742 | 0 | 264,742 | 2.1% | 31 Jul, 2026 |
| 4 | Peter A. Thompson | Director | 0 | 231,098 | 231,098 | 1.8% | 30 Dec, 2021 |
| 5 | Thomas Diraimondo | Chief Scientific Officer | 155,825 | 0 | 155,825 | 1.2% | 02 Jan, 2026 |
| 6 | Sheila Gujrathi | Director | 118,889 | 0 | 118,889 | 0.9% | 13 Jun, 2025 |
| 7 | Charles M. Winter | Chief Technical Officer | 106,321 | 0 | 106,321 | 0.8% | 02 Jan, 2026 |
| 8 | Andrew Hollman Meyer | Chief Business Officer | 83,095 | 0 | 83,095 | 0.7% | 02 Jan, 2026 |
| 9 | Vickie L Capps | Director | 79,598 | 0 | 79,598 | 0.6% | 12 Jun, 2026 |
| 10 | Janeen Noel Doyle | Chief Corp. Bus. Dev. Ofcr | 75,941 | 0 | 75,941 | 0.6% | 04 Jun, 2026 |
| 11 | Zachariah Mciver | Chief Medical Officer | 52,286 | 0 | 52,286 | 0.4% | 02 Jan, 2026 |
| 12 | William Go | Chief Medical Officer | 44,000 | 0 | 44,000 | 0.3% | 04 Feb, 2026 |
| 13 | Maria Dobek | Vice President, Accounting | 32,270 | 0 | 32,270 | 0.3% | 13 May, 2026 |
| 14 | Byron Robinson | Chief Strategy Officer | 28,000 | 0 | 28,000 | 0.2% | 03 Jan, 2025 |
| 15 | Natasha Hernday | Director | 15,481 | 0 | 15,481 | 0.1% | 12 Jun, 2026 |
| 16 | Eric Dobmeier | Director | 15,481 | 0 | 15,481 | 0.1% | 12 Jun, 2026 |
| 17 | Jake Simson | Director | 11,750 | 0 | 11,750 | 0.1% | 12 Jun, 2026 |
| 18 | Winston Kung | Director | 11,750 | 0 | 11,750 | 0.1% | 12 Jun, 2026 |
| 19 | Ronald W Barrett | Director | 11,750 | 0 | 11,750 | 0.1% | 12 Jun, 2026 |
| 20 | Jay Lichter | TenPercentOwner | 7,000 | 0 | 7,000 | 0.1% | 24 Oct, 2024 |
| 21 | 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 | Natasha Hernday | 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 | Vickie L Capps | Director | Acquired A | 5,500 | $0.00 | $0 | 79,598 | Direct |
| 11 Jun, 2026 | Jake Simson | Director | Acquired A | 5,500 | $0.00 | $0 | 11,750 | Direct |
| 11 Jun, 2026 | Ronald W Barrett | 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 | Ronald W Barrett | 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 | Natasha Hernday | 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 | Jake Simson | 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 |
| 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 |
| 02 Feb, 2026 | William Go | Chief Medical Officer | Acquired A | 154,000 | $0.00 | $0 | 154,000 | Direct |
| 02 Jan, 2026 | Charles M. Winter | Chief Technical Officer | Disposed S | 2,401 | $13.73 | $32.97K | 77,721 | Direct |