GENERATION BIO CO (GBIO) Stock Ownership

NASDAQ:GBIO • US37148K2096

Current stock price

5.34 USD
-0.4 (-6.97%)
At close:
5.4198 USD
+0.08 (+1.49%)
After Hours:

GBIO Ownership information

GBIO Ownership Chart.GBIO Ownership Chart: showing Insider, Institutional ownership and shares available to the public.GBIO Ownership.InsiderInstitutionalPublic



Shares Outstanding6.74M
Float5.78M
Float Short Interest PercentageN/A
Owners (insider)2.79%
Owners (institutional)65.38%
Owners (insider) change-9.9%
Owners (institutional) change-100%
GBIO Institutional Ownership HistoryGBIO Institutional Ownership HistoryGBIO Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M 40M 50M
GBIO Historical Insider Transactions ChartGBIO Historical Insider Buy and Sell Transactions ChartGBIO Historical Insider Transactions May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026 0 -2M -4M -6M
DateNameTypeSharesPriceAmount
Feb 9, 2026Appelhans DannielleOther Disposition1999$ 0.00
Feb 9, 2026Stehman-Breen CatherineOther Disposition4752$ 0.00
Feb 9, 2026Rowland Charles A JrOther Disposition53475$ 0.00
Feb 9, 2026Rhodes Jason POther Disposition827946$ 0.00
Feb 9, 2026Quinn Anthony G.Other Disposition37211$ 0.00
Feb 9, 2026Nicholson Donald WilliamOther Disposition21357$ 0.00
Feb 9, 2026MCDONOUGH GEOFFOther Disposition188638$ 0.00
Feb 9, 2026Howze YalondaOther Disposition3759$ 0.00
Feb 9, 2026Cooper Ronald Harold WilfredOther Disposition950$ 0.00
Feb 9, 2026Conway Kevin JohnOther Disposition2072$ 0.00
Feb 9, 2026Atlas Venture Fund X, L.P.Other Disposition827946$ 0.00
Feb 9, 2026ATLAS VENTURE ASSOCIATES X, L.P.Other Disposition827946$ 0.00
Feb 9, 2026Atlas Venture Associates X, LLCOther Disposition827946$ 0.00
Feb 9, 2026Atlas Venture Opportunity Fund I, L.P.Other Disposition827946$ 0.00
Feb 9, 2026Atlas Venture Associates Opportunity I, L.P.Other Disposition827946$ 0.00
Feb 9, 2026Atlas Venture Associates Opportunity I, LLCOther Disposition827946$ 0.00
Feb 9, 2026Christensen GustavOther Disposition13142$ 0.00
Feb 2, 2026Conway Kevin JohnOption Excercise235$ 0.00
Feb 2, 2026Conway Kevin JohnOption Excercise725.64$ 406.08
Feb 2, 2026MCDONOUGH GEOFFOption Excercise1582$ 0.00
Feb 2, 2026MCDONOUGH GEOFFOption Excercise5505.64$ 3,102.00
Feb 2, 2026Howze YalondaOption Excercise1673$ 0.00
Feb 2, 2026Howze YalondaOption Excercise4955.64$ 2,791.80
Jan 15, 2026Conway Kevin JohnOption Excercise59$ 0.00
Jan 15, 2026Conway Kevin JohnOption Excercise175.64$ 95.88
Jan 15, 2026MCDONOUGH GEOFFOption Excercise395$ 0.00
Jan 15, 2026MCDONOUGH GEOFFOption Excercise1375.64$ 772.68
Jan 15, 2026Howze YalondaOption Excercise335$ 0.00
Jan 15, 2026Howze YalondaOption Excercise995.64$ 558.36
Oct 15, 2025MCDONOUGH GEOFFOption Excercise527$ 0.00
Oct 15, 2025MCDONOUGH GEOFFOption Excercise1556.71$ 1,040.05
Oct 15, 2025Howze YalondaOption Excercise334$ 0.00
Oct 15, 2025Howze YalondaOption Excercise996.71$ 664.29
Oct 15, 2025Paone AntoinetteOption Excercise159$ 0.00
Oct 15, 2025Paone AntoinetteOption Excercise476.71$ 315.37
Oct 15, 2025Samayoa PhillipOption Excercise114$ 0.00
Oct 15, 2025Samayoa PhillipOption Excercise346.71$ 228.14
Oct 15, 2025Conway Kevin JohnOption Excercise58$ 0.00
Oct 15, 2025Conway Kevin JohnOption Excercise186.71$ 120.78
Jul 15, 2025Howze YalondaOption Excercise9830.43$ 418.76
Jul 15, 2025Conway Kevin JohnOption Excercise587$ 0.00
Jul 15, 2025Conway Kevin JohnOption Excercise1730.43$ 73.70
Jul 15, 2025Paone AntoinetteOption Excercise1592$ 0.00
Jul 15, 2025Paone AntoinetteOption Excercise4680.43$ 199.37
Jul 15, 2025Samayoa PhillipOption Excercise1147$ 0.00
Jul 15, 2025Samayoa PhillipOption Excercise3370.43$ 143.56
Jul 15, 2025MCDONOUGH GEOFFOption Excercise5273$ 0.00
Jul 15, 2025MCDONOUGH GEOFFOption Excercise15480.43$ 659.45
Jul 15, 2025Howze YalondaOption Excercise3347$ 0.00
Apr 15, 2025Samayoa PhillipOption Excercise1147$ 0.00
Apr 15, 2025Samayoa PhillipOption Excercise3370.37$ 123.95
Apr 15, 2025Paone AntoinetteOption Excercise1592$ 0.00
Apr 15, 2025Paone AntoinetteOption Excercise4680.37$ 172.13
Apr 15, 2025MCDONOUGH GEOFFOption Excercise5274$ 0.00
Apr 15, 2025MCDONOUGH GEOFFOption Excercise15480.37$ 569.35
Apr 15, 2025Conway Kevin JohnOption Excercise587$ 0.00
Apr 15, 2025Conway Kevin JohnOption Excercise1730.37$ 63.63
Apr 15, 2025Howze YalondaOption Excercise3347$ 0.00
Apr 15, 2025Howze YalondaOption Excercise9830.37$ 361.55