21 insiders reported 55 Form 4 transactions for Janux Therapeutics, Inc. (JANX) over the past 18 months (most recent 2026-07-31). Recent activity: Campbell David Alan (President and CEO) Sell 123,840 shares, Campbell David Alan (President and CEO) Buy 7,000 shares, Hernday Natasha (Director) Buy 5,500 shares, DOBMEIER ERIC (Director) Buy 5,500 shares, RA Capital Healthcare Fund LP (Director) Buy 5,500 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-31 | Campbell David Alan | President and CEO | Sell | 123,840 | $0 |
| 2026-07-10 | Campbell David Alan | President and CEO | Buy | 7,000 | $29,470 |
| 2026-06-12 | Hernday Natasha | Director | Buy | 5,500 | $0 |
| 2026-06-12 | DOBMEIER ERIC | Director | Buy | 5,500 | $0 |
| 2026-06-12 | RA Capital Healthcare Fund LP | Director | Buy | 5,500 | $0 |
| 2026-06-12 | RA CAPITAL MANAGEMENT, L.P. | Director | Buy | 5,500 | $0 |
| 2026-06-12 | Kolchinsky Peter | Director | Buy | 5,500 | $0 |
| 2026-06-12 | Shah Rajeev M. | Director | Buy | 5,500 | $0 |
| 2026-06-12 | RA Capital Nexus Fund II, L.P. | Director | Buy | 5,500 | $0 |
| 2026-06-12 | Kung Winston | Director | Buy | 5,500 | $0 |
| 2026-06-12 | Simson Jake | Director | Buy | 5,500 | $0 |
| 2026-06-12 | Barrett Ronald W | Director | Buy | 5,500 | $0 |
| 2026-06-12 | CAPPS VICKIE L | Director | Buy | 5,500 | $0 |
| 2026-06-04 | Doyle Janeen Noel | Chief Corp. & Bus. Dev. Ofcr | Sell | 4,059 | $56,948 |
| 2026-05-13 | Dobek Maria | Vice President, Accounting | Sell | 2,038 | $28,878 |
| 2026-02-04 | Go William | Chief Medical Officer | Buy | 44,000 | $0 |
| 2026-01-02 | McIver Zachariah | Chief Medical Officer | Sell | 2,714 | $37,263 |
| 2026-01-02 | McIver Zachariah | Chief Medical Officer | Buy | 29,000 | $0 |
| 2026-01-02 | Campbell David Alan | President and CEO | Sell | 8,072 | $110,829 |
| 2026-01-02 | Campbell David Alan | President and CEO | Buy | 96,600 | $0 |
| 2026-01-02 | Winter Charles M. | Chief Technical Officer | Sell | 2,401 | $32,966 |
| 2026-01-02 | Winter Charles M. | Chief Technical Officer | Buy | 28,600 | $0 |
| 2026-01-02 | Meyer Andrew Hollman | Chief Business Officer | Sell | 1,879 | $25,799 |
| 2026-01-02 | Dobek Maria | Vice President, Accounting | Sell | 1,462 | $20,073 |
| 2026-01-02 | Dobek Maria | Vice President, Accounting | Buy | 18,935 | $0 |
Source: SEC Form 4 filings · as of 2026-07-31