Jade Biosciences, Inc.
JBIO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001798749
No open-market purchases or sales by Jade Biosciences, Inc. insiders were filed in the last 90 days; 153 institutions reported holding it in 13F filings for Q2 2026, worth $1.62B in total; no superinvestor holds it.
Holders of 5% or more of JBIO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Jade Biosciences, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Fairmount Funds Management LLC | 13D/A | 19.99%14.1M shares | 0.00 ppfrom 19.99% | May 1, 20253 filings | Jun 9, 2026 | SEC |
| FMR LLC | 13G | 14.70%4.74M shares | New | Jun 6, 20251 filing | Jun 6, 2025 | SEC |
| Janus Henderson Group PLC | 13G/A | 10.60%6.27M shares | +4.30 ppfrom 6.30% | Feb 17, 20263 filings | Jul 8, 2026 | SEC |
| Venrock Healthcare Capital Partners III, L.P. | 13G/A | 8.30%5.15M shares | −1.60 ppfrom 9.90% | May 5, 20253 filings | Aug 14, 2026 | SEC |
| Ra Capital Management, L.P. | 13G | 7.00%3.21M shares | +2.90 ppfrom 4.10% | Jul 12, 20216 filings | Oct 16, 2025 | SEC |
| Paradigm Biocapital Advisors LP | 13G | 5.10%3.11M shares | New | Jul 17, 20261 filing | Jul 17, 2026 | SEC |
| Bellevue Group AG | 13G/A | 5.00%3.06M shares | −1.80 ppfrom 6.80% | Feb 17, 20262 filings | Aug 14, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
53 Schedule 13D and 13G filings on Jade Biosciences, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jul 12, 2021 | Ra Capital Management, L.P. | 13DOld format | – | New | – | SEC |
| Jul 12, 2021 | Citadel Advisors LLC | 13GOld format | – | New | – | SEC |
| Jul 12, 2021 | Cormorant Asset Management, LP | 13GOld format | – | New | – | SEC |
Form 144: proposed insider sales
52 notices from officers, directors and other affiliates planning to sell Jade Biosciences, Inc. shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Jun 25, 20255:37 PM ET | Atlas Venture Fund XII, L.P.Shareholder | 29.0K | $303.7K | Jun 25, 2025 | Merrill Lynch | SEC |
| Jun 25, 20255:31 PM ET | Atlas Venture Associates XII, L.P.Shareholder | 235 | $2.46K | Jun 25, 2025 | Merrill Lynch | SEC |
| Jun 24, 20255:03 PM ET | Atlas Venture Fund XII, L.P.Shareholder | 16.1K | $159.2K | Jun 24, 2025 | Merrill Lynch | SEC |
| Jun 24, 20254:59 PM ET | Atlas Venture Associates XII, L.P.Shareholder | 131 | $1.29K | Jun 24, 2025 | Merrill Lynch | SEC |
| May 6, 20255:14 PM ET | Atlas Venture Associates XII, L.P.Shareholder | 48 | $552 | May 6, 2025 | Merrill Lynch | SEC |
| May 6, 20255:11 PM ET | Atlas Venture Fund XII, L.P.Shareholder | 5.88K | $67.7K | May 6, 2025 | Merrill Lynch | SEC |
| Jun 14, 20244:01 PM ET | Marinus VerwijsOfficer | 10.6K | $265.0K | Jun 14, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Jun 13, 20244:44 PM ET | Hunter C GilliesOfficer | 6.00K | $147.0K | Jun 13, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 17, 20244:59 PM ET | Hunter C GilliesOfficer | 4.00K | $84.3K | May 17, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 16, 20244:20 PM ET | Timothy NoyesOfficer · Director | 10.0K | $215.8K | May 16, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 2, 20245:59 PM ET | Verwijs MarinusOfficer | 1.98K | $41.6K | May 2, 2024 | MORGAN STANLEY SMITH BARNEY LLC EXECUTIVE SERVICES | SEC |
| May 1, 20244:08 PM ET | Timothy NoyesOfficer · Director | 11.4K | $230.9K | May 1, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 17, 20244:35 PM ET | Hunter C GilliesOfficer | 4.00K | $89.5K | Apr 17, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 17, 20244:35 PM ET | Dake Benjamin TOfficer | 6.85K | $161.9K | Apr 17, 202410b5-1 | Jefferies LLC | SEC |
| Apr 16, 20244:25 PM ET | Timothy NoyesOfficer · Director | 10.0K | $247.0K | Apr 16, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 9, 20246:42 PM ET | Atlas Venture Associates XII, L.P.Director | 11.9K | $314.6K | Apr 9, 2024 | Merrill Lynch | SEC |
| Apr 1, 20247:24 PM ET | Timothy NoyesOfficer · Director | 10.0K | $300.0K | Apr 1, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 1, 20247:18 PM ET | Marinus VerwijsOfficer | 5.30K | $154.7K | Apr 1, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 1, 20244:44 PM ET | Eldridge George AOfficer | 37.4K | $1.11M | Apr 1, 202410b5-1 | Jefferies LLC | SEC |
| Mar 28, 20246:31 PM ET | Hunter C GilliesOfficer | 9.00K | $265.5K | Mar 28, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Mar 19, 20244:35 PM ET | Marinus VerwijsOfficer | 5.30K | $138.2K | Mar 19, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Mar 18, 20244:55 PM ET | Hunter C GilliesOfficer | 7.00K | $181.1K | Mar 18, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Mar 18, 20244:08 PM ET | Dake Benjamin TOfficer | 56.4K | $1.51M | Mar 18, 202410b5-1 | Jefferies LLC | SEC |
| Mar 7, 20244:37 PM ET | Hunter C GilliesOfficer | 8.97K | $219.9K | Mar 7, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Mar 7, 20243:28 PM ET | Eldridge George AOfficer | 30.0K | $716.1K | Mar 7, 202410b5-1 | Jefferies LLC | SEC |
Showing the latest 25. See the JBIO notices from the last 12 months