JBIO: Jade Biosciences, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-08-14 | 13G amendment | Venrock Healthcare Capital Partners III, L.P. | 8.30% | SEC | |
| 2026-08-14 | 13G amendment | Bellevue Group AG | 5.00% | SEC |
Institutional ownership (Q2 2026)
154 institutions reported holding $1.61B of Jade Biosciences, Inc. on Form 13F (120 the quarter before). 51 opened a new position and 16 sold out. Shares held by institutions: +46%.
| Largest holders | Shares | Value |
|---|---|---|
| FMR LLC | 9,126,877 | $202.80M |
| Jupiter Topco LLC | 6,273,262 | $139.37M |
| Fairmount Funds Management LLC | 4,553,494 | $101.18M |
| RA CAPITAL MANAGEMENT, L.P. | 3,671,083 | $81.57M |
| Venrock Adviser, LLC | 3,220,364 | $71.56M |
| Bellevue Group AG | 3,057,996 | $67.95M |
| Paradigm Biocapital Advisors LP | 2,857,405 | $63.49M |
| BlackRock, Inc. | 2,801,451 | $62.25M |
| FRANKLIN RESOURCES INC | 2,792,080 | $62.04M |
| STATE STREET CORP | 2,335,285 | $51.89M |
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