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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.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Jade Biosciences, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Jade Biosciences, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Jade Biosciences, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Eisner MarkDirector–Jun 26, 20261
Harwin Peter EvanDirector, 10% Owner1,897,677IndirectJun 11, 20262
Fairmount Healthcare Fund II L.P.Director, 10% Owner1,897,677IndirectJun 11, 20262
Fairmount Funds Management LLCDirector, 10% Owner1,897,677IndirectJun 11, 20262
Kiselak TomasDirector, 10% Owner1,897,677IndirectJun 11, 20262
Fairmount Healthcare Co-Invest IV L.P.Director, 10% Owner1,897,677IndirectJun 11, 20262
Dobmeier EricDirector–Jun 11, 20261
Lavelle ErinDirector–Jun 11, 20261
Klein Lawrence OttoDirector–Jun 11, 20261
Cain Christopher W.Director–Jun 11, 20261
Dahms Bradford D.Chief Financial Officer37,813Feb 13, 20261
King Andrew JamesSee Remarks386,113Feb 13, 20261
Frohlich TomChief Executive Officer86,331Feb 13, 20261
Bekiroglu ElizabethSee Remarks28,125Feb 13, 20261
RA Capital Healthcare Fund LP10% Owner1,287,858IndirectApr 30, 20250
Ra Capital Management, L.P.10% Owner1,287,858IndirectApr 30, 20250
Kolchinsky Peter10% Owner1,287,858IndirectApr 30, 20250
Shah Rajeev M.10% Owner1,287,858IndirectApr 30, 20250
Dake Benjamin TSEE REMARKS14,252Aug 2, 20240
RA Capital Nexus Fund, L.P.Director7,893,678IndirectJun 20, 20240
Eldridge George ASEE REMARKS5,022Jun 14, 20240
Gillies HunterCHIEF MEDICAL OFFICER5,602Jun 14, 20240
Verwijs MarinusCHIEF TECHNICAL OFFICER0Jun 14, 20240
Santel Donald JDirector–Jun 7, 20240
Iwicki Mark TDirector–Jun 7, 20240
Dorval AllisonDirector–Jun 7, 20240
Dable Habib JDirector–Jun 7, 20240
Resnick JoshuaDirector–Jun 7, 20240
Katabi MahaDirector, 10% Owner3,758,686IndirectJun 7, 20240
Grayzel David S.Director14,502IndirectJun 7, 20240
Noyes Timothy PCHIEF EXECUTIVE OFFICER0May 17, 20240
Niven RalphCHIEF SCIENTIFIC OFFICER1,609Feb 7, 20240
Pigot TimothyCHIEF COMMERCIAL OFFICER–Jan 24, 20240
Atlas Venture Fund XII, L.P.10% Owner2,327,909Jul 19, 20220
Cormorant Asset Management, LPOther: Former 10% Owner2,030,691IndirectJul 7, 20210
Chen BihuaOther: Former 10% Owner2,030,691IndirectJul 7, 20210
Cormorant Global Healthcare Master Fund, LPOther: Former 10% Owner2,030,691IndirectJul 7, 20210
Cormorant Private Healthcare Fund II, LPOther: Former 10% Owner2,030,691IndirectJul 7, 20210
Healy James10% Owner3,758,686Jul 6, 20210
Sofinnova Management X, L.P.10% Owner3,758,686Jul 6, 20210
Sofinnova Venture Partners X, L.P.10% Owner3,758,686Jul 6, 20210
Atlas Venture Associates XII, LLC10% Owner3,103,879Jul 6, 20210
Atlas Venture Associates XII, L.P.10% Owner3,103,879Jul 6, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
May 19, 2025 (view filing)May 163 daysFrohlich TomChief Executive OfficerPPurchase+6.00K$7.40+$44.4KNew position6.00K after
Jun 20, 2024 (view filing)5:56 PM ETJun 173 daysRA Capital Healthcare Fund LP and 4 othersDirector, 10% OwnerPPurchase+928.1K$1.67+$1.55M+13.3%7.89M after
Jun 14, 2024 (view filing)Jun 14Same dayEldridge George ASEE REMARKSSSale−15.0K$25.03−$375.4K−74.9%5.02K after10b5-1
Jun 14, 2024 (view filing)Jun 14Same dayVerwijs MarinusCHIEF TECHNICAL OFFICERSSale−10.6K$25.00−$265.0K−100.0%0 after10b5-1
Jun 14, 2024 (view filing)Jun 131 dayGillies HunterCHIEF MEDICAL OFFICERSSale−6.00K$24.50−$147.0K−51.7%5.60K after10b5-1
May 17, 2024 (view filing)May 17Same dayGillies HunterCHIEF MEDICAL OFFICERSSale−4.00K$21.09−$84.3K−41.7%5.60K after2 lots10b5-1
May 17, 2024 (view filing)May 161 dayNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−10.0K$21.57−$215.7K−100.0%0 after2 lots10b5-1
May 3, 2024 (view filing)May 21 dayVerwijs MarinusCHIEF TECHNICAL OFFICERSSale−1.98K$21.02−$41.6K−100.0%0 after
May 3, 2024 (view filing)May 12 daysNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−11.4K$20.33−$230.9K−100.0%0 after3 lots10b5-1
Apr 19, 2024 (view filing)Apr 172 daysDake Benjamin TSEE REMARKSSSale−6.85K$22.38−$153.4K−84.1%1.29K after3 lots10b5-1
Apr 19, 2024 (view filing)Apr 172 daysGillies HunterCHIEF MEDICAL OFFICERSSale−4.00K$22.38−$89.5K−55.2%3.25K after2 lots10b5-1
Apr 18, 2024 (view filing)Apr 162 daysNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−10.0K$24.70−$247.0K−100.0%0 after2 lots10b5-1
Apr 12, 2024 (view filing)Apr 102 daysEldridge George ASEE REMARKSSSale−7.50K$26.85−$201.4K−79.3%1.96K after2 lots10b5-1
Apr 11, 2024 (view filing)Apr 92 daysGrayzel David S.DirectorSSale−11.9K$28.15−$334.5K−45.0%14.5K after
Apr 3, 2024 (view filing)Apr 12 daysVerwijs MarinusCHIEF TECHNICAL OFFICERSSale−5.30K$29.19−$154.7K−100.0%0 after2 lots10b5-1
Apr 3, 2024 (view filing)Apr 12 daysNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−10.0K$30.00−$300.0K−100.0%0 after4 lots10b5-1
Apr 3, 2024 (view filing)Apr 12 daysDake Benjamin TSEE REMARKSSSale−3.33K$31.97−$106.3K−72.0%1.29K after10b5-1
Apr 3, 2024 (view filing)Apr 12 daysEldridge George ASEE REMARKSSSale−12.5K$31.23−$390.2K−86.4%1.96K after10b5-1
Apr 1, 2024 (view filing)Mar 284 daysGillies HunterCHIEF MEDICAL OFFICERSSale−9.00K$29.50−$265.5K−73.5%3.25K after10b5-1
Mar 28, 2024 (view filing)Mar 271 dayDake Benjamin TSEE REMARKSSSale−11.1K$27.97−$309.6K−89.6%1.29K after10b5-1
Mar 27, 2024 (view filing)Mar 252 daysDake Benjamin TSEE REMARKSSSale−3.43K$28.01−$96.1K−72.7%1.29K after10b5-1
Mar 20, 2024 (view filing)Mar 191 dayVerwijs MarinusCHIEF TECHNICAL OFFICERSSale−5.30K$26.09−$138.3K−100.0%0 after2 lots10b5-1
Mar 20, 2024 (view filing)Mar 182 daysGillies HunterCHIEF MEDICAL OFFICERSSale−7.00K$25.86−$181.0K−68.3%3.25K after2 lots10b5-1
Mar 20, 2024 (view filing)Mar 182 daysDake Benjamin TSEE REMARKSSSale−35.1K$25.90−$908.0K−96.4%1.29K after2 lots10b5-1
Mar 14, 2024 (view filing)Mar 12-132 daysEldridge George ASEE REMARKSSSale−4.07K$25.04−$101.8K−67.5%1.96K after2 lots10b5-1
Mar 11, 2024 (view filing)Mar 7-114 daysEldridge George ASEE REMARKSSSale−25.9K$25.03−$649.2K−93.0%1.96K after4 lots10b5-1
Mar 11, 2024 (view filing)Mar 74 daysGillies HunterCHIEF MEDICAL OFFICERSSale−8.97K$24.50−$219.9K−73.4%3.25K after10b5-1
Feb 27, 2024 (view filing)Feb 234 daysGillies HunterCHIEF MEDICAL OFFICERSSale−511$19.50−$9.96K−13.6%3.25K after10b5-1
Feb 22, 2024 (view filing)Feb 202 daysGillies HunterCHIEF MEDICAL OFFICERSSale−3.49K$20.23−$70.6K−51.8%3.25K after2 lots10b5-1
Feb 7, 2024 (view filing)Feb 52 daysNiven RalphCHIEF SCIENTIFIC OFFICERSSale−4.60K$17.45−$80.3K−74.1%1.61K after10b5-1
Jan 19, 2024 (view filing)Jan 172 daysGillies HunterCHIEF MEDICAL OFFICERSSale−4.00K$19.50−$78.0K−55.2%3.25K after10b5-1
Jan 8, 2024 (view filing)Jan 53 daysNiven RalphCHIEF SCIENTIFIC OFFICERSSale−4.60K$19.15−$88.1K−74.1%1.61K after2 lots10b5-1
Dec 29, 2023 (view filing)Dec 272 daysGillies HunterCHIEF MEDICAL OFFICERSSale−125$24.50−$3.06K−3.7%3.25K after10b5-1
Dec 22, 2023 (view filing)Dec 202 daysGillies HunterCHIEF MEDICAL OFFICERSSale−4.00K$19.50−$78.0K−55.2%3.25K after10b5-1
Dec 15, 2023 (view filing)Dec 13-142 daysGillies HunterCHIEF MEDICAL OFFICERSSale−12.0K$19.50−$234.0K−78.7%3.25K after2 lots10b5-1
Dec 7, 2023 (view filing)Dec 52 daysNiven RalphCHIEF SCIENTIFIC OFFICERSSale−4.60K$16.30−$75.0K−74.1%1.61K after10b5-1
Dec 7, 2023 (view filing)Dec 61 dayDake Benjamin TSEE REMARKSSSale−10.3K$16.11−$165.7K−88.8%1.29K after10b5-1
Nov 29, 2023 (view filing)Nov 272 daysDake Benjamin TSEE REMARKSSSale−12.5K$16.24−$203.3K−90.7%1.29K after10b5-1
Nov 27, 2023 (view filing)Nov 22-245 daysDake Benjamin TSEE REMARKSSSale−14.4K$15.37−$220.9K−91.8%1.29K after3 lots10b5-1
Nov 27, 2023 (view filing)Nov 225 daysNiven RalphCHIEF SCIENTIFIC OFFICERSSale−13.8K$15.00−$207.0K−89.6%1.61K after10b5-1
Nov 3, 2023 (view filing)Nov 12 daysVerwijs MarinusCHIEF TECHNOLOGY OFFICERSSale−970$10.46−$10.1K−100.0%0 after
Nov 3, 2023 (view filing)Nov 12 daysNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−1.09K$10.42−$11.4K−100.0%0 after10b5-1
Sep 8, 2023 (view filing)Sep 6-72 daysDake Benjamin TSEE REMARKSSSale−3.96K$15.06−$59.7K−75.4%1.29K after2 lots10b5-1
Aug 9, 2023 (view filing)Aug 72 daysDake Benjamin TSEE REMARKSSSale−10.3K$15.52−$159.6K−88.8%1.29K after2 lots10b5-1
Aug 1, 2023 (view filing)Jul 284 daysNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−5.48K$18.00−$98.6K−100.0%0 after10b5-1
Jul 19, 2023 (view filing)Jul 172 daysNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−4.52K$18.11−$81.9K−100.0%0 after10b5-1
Jul 7, 2023 (view filing)Jul 61 dayDake Benjamin TSEE REMARKSSSale−10.3K$16.66−$171.3K−88.8%1.29K after10b5-1
Jul 7, 2023 (view filing)Jul 52 daysNiven RalphCHIEF SCIENTIFIC OFFICERSSale−2.25K$17.29−$38.9K−58.3%1.61K after2 lots10b5-1
Jul 5, 2023 (view filing)Jul 32 daysNoyes Timothy PCHIEF EXECUTIVE OFFICERSSale−10.0K$18.00−$180.0K−100.0%0 after10b5-1
Jun 8, 2023 (view filing)Jun 62 daysDake Benjamin TSEE REMARKSSSale−10.3K$16.28−$167.4K−88.8%1.29K after2 lots10b5-1