Jade Biosciences, Inc. (JBIO) Insider Trading -- Recent Executive & Director Transactions
13 insiders reported 14 Form 4 transactions for Jade Biosciences, Inc. (JBIO) over the past 18 months (most recent 2026-02-13). Recent activity: King Andrew James (Chief Scientific Officer & Head of Research and Development) Buy 41,250 shares, Dahms Bradford D. (Chief Financial Officer) Buy 37,813 shares, Frohlich Tom (Chief Executive Officer) Buy 78,750 shares, Balta Elizabeth (Chief Legal Officer and Corporate Secretary) Buy 28,125 shares, Harwin Peter Evan (Director) Buy 1.3M shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-13 | King Andrew James | Chief Scientific Officer & Head of Research and Development | Buy | 41,250 | $0 |
| 2026-02-13 | Dahms Bradford D. | Chief Financial Officer | Buy | 37,813 | $0 |
| 2026-02-13 | Frohlich Tom | Chief Executive Officer | Buy | 78,750 | $0 |
| 2026-02-13 | Balta Elizabeth | Chief Legal Officer and Corporate Secretary | Buy | 28,125 | $0 |
| 2025-10-08 | Harwin Peter Evan | Director | Buy | 1.3M | $12.2M |
| 2025-10-08 | Fairmount Healthcare Fund II L.P. | Director | Buy | 1.3M | $12.2M |
| 2025-10-08 | Fairmount Funds Management LLC | Director | Buy | 1.3M | $12.2M |
| 2025-10-08 | Kiselak Tomas | Director | Buy | 1.3M | $12.2M |
| 2025-10-08 | Fairmount Healthcare Co-Invest IV L.P. | Director | Buy | 1.3M | $12.2M |
| 2025-05-19 | Frohlich Tom | Chief Executive Officer | Buy | 6,000 | $44,400 |
| 2025-04-30 | RA Capital Healthcare Fund LP | 10% Owner | Buy | 1.1M | $0 |
| 2025-04-30 | RA CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 1.1M | $0 |
| 2025-04-30 | Kolchinsky Peter | 10% Owner | Buy | 1.1M | $0 |
| 2025-04-30 | Shah Rajeev M. | 10% Owner | Buy | 1.1M | $0 |
Source: SEC Form 4 filings · as of 2026-02-13