Generation Bio Co

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Generation Bio Co
TickerGBIO
CIK #0001733294
CUSIP37148K100
SectorLife Sciences - Pharmaceutical Preparations
Address301 Binney Street, Cambridge, MA 02142
Source [EDGAR]
CIK Filing 2011 - 2025
[0001733294] 10-K
[0001733294] 10-Q
[0001733294] 3
[0001733294] 4
[0001733294] 8-K
[0001733294] D
[0001733294] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
BlackRock Inc Generation Bio Co [2024-11-08] 5.1
BlackRock Inc Generation Bio Co [2024-10-23] 5.1
Modernatx Inc Generation Bio Co [2023-03-24] 8.9
T Rowe Price Investment Management Inc Generation Bio Co [2023-02-14] 6.0
PFM Health Sciences LP Generation Bio Co [2022-09-06] 5.1
Vanguard Group Inc Generation Bio Co [2022-02-10] 6.32
BlackRock Inc Generation Bio Co [2022-02-04] 5.6
Atlas Venture Fund X LP Generation Bio Co [2021-02-16] 21.7
Price T Rowe Associates Inc /MD/ Generation Bio Co [2021-02-10] 9.4
BB Biotech AG Generation Bio Co [2021-01-08] 5.1
FMR LLC Generation Bio Co [2020-08-24] 0.0
FMR LLC Generation Bio Co [2020-07-10] 0.0
Artal International SCA Generation Bio Co [2020-06-26] 6.3
Zone Healthcare Holdings LLC Generation Bio Co [2020-06-26] 4.1
Flynn James E Generation Bio Co [2020-06-16] 2.66
Form 3/4/5 Filer 2011 - 2025
Generation Bio Co.
Samayoa Phillip
McDonough Geoff
Howze Yalonda
Conway Kevin John
Paone Antoinette
Rowland Charles A Jr
Appelhans Dannielle
Quinn Anthony G.
Rhodes Jason P
Stehman-Breen Catherine
Cooper Ronald Harold Wilfred
Christensen Gustav
Nicholson Donald William
Jonas Jeffrey M
Stanton Matthew
Norkunas Matthew
Zimmermann Tracy
Kerr Douglas
Atlas Venture Associates Opportunity I, LLC
Atlas Venture Associates X, LLC
Atlas Venture Associates X LP
Atlas Venture Opportunity Fund I, L.P.
Atlas Venture Fund X, L.P.
Atlas Venture Associates Opportunity I, L.P.
Angelino Mark D.
Wellington Biomedical Innovation Master Investors (Cayman) I
Artal International S.C.A.
Invus Public Equities, L.P.
Artal Group S.A.
Artal International Management S.A.
Invus Public Equities Advisors, LLC
Minne Pascal
Stichting Administratiekantoor Westend
Westend S.A.
Artal Treasury Ltd
Casdin Eli
Casdin Capital, LLC
Fried Richard B
Zone Healthcare Holdings, LLC
Roberts Thomas G. Jr.
Patel Rajiv A
Farallon Partners L L C/CA
Kim David T
Linn Michael G
Fisch Michael B.
Dreyfuss Philip D
Farallon Capital Management LLC
Wehrly Mark C
Seybold William
Warren John R.
Spokes Andrew J M
Deerfield Mgmt L.P.
Flynn James E
Deerfield Management Company LP
Deerfield Partners LP
DiPalma Stephen J.
Form 13F Holdings
Firm Period DFND Voting Shares
Price T Rowe Associates Inc /MD/ [2025-06-30] SOLE 8,054,847 8,299,828
Atlas Venture Life Science Advisors LLC [2025-06-30] SOLE 8,279,484 8,279,484
Siren, L.L.C. [2025-06-30] DFND 2,968,925 2,968,925
Renaissance Technologies LLC [2025-06-30] SOLE 2,580,780 2,580,780
FMR LLC [2025-06-30] DFND 2,332,717 2,345,624
Vanguard Group Inc [2025-06-30] SOLE 0 2,275,499
Baker Bros Advisors LP [2025-06-30] SOLE 1,944,945 1,944,945
Acadian Asset Management LLC [2025-06-30] DFND 1,233,471 1,233,471
BlackRock, Inc. [2025-06-30] SOLE 1,148,264 1,161,578
Goldman Sachs Group Inc [2025-06-30] DFND 1,064,090 1,064,090
Millennium Management LLC [2025-06-30] SOLE 1,061,606 1,061,606
Yiheng Capital Management LP [2025-06-30] SOLE 1,055,269 1,055,269
Morgan Stanley [2025-06-30] DFND 912,734 912,834
UBS Group AG [2025-06-30] DFND 884,902 884,902
Bank of America Corp /DE/ [2025-06-30] DFND 0 871,951
Militia Capital Partners, LP [2025-06-30] SOLE 173,605 542,347
Squarepoint Ops LLC [2025-06-30] DFND 0 518,270
Geode Capital Management LLC [2025-06-30] DFND 498,080 498,080
TD Asset Management Inc [2025-06-30] SOLE 340,686 340,686
Citadel Advisors LLC [2025-06-30] DFND 307,760 307,760
Susquehanna International Group LLP [2025-06-30] OTR 249,277 249,277
Charles Schwab Investment Management Inc [2025-06-30] SOLE 236,856 236,856
State Street Corp [2025-06-30] DFND 206,116 206,116
Two Sigma Advisers LP [2025-06-30] SOLE 184,400 191,400
Price T Rowe Associates Inc /MD/ [2025-06-30] DFND 162,783 162,783
Palo Alto Investors LP [2025-06-30] SOLE 150,475 150,475
Y-Intercept (Hong Kong) Ltd [2025-06-30] SOLE 148,186 148,186
Manufacturers Life Insurance Company the [2025-06-30] DFND 143,980 143,980
Northern Trust Corp [2025-06-30] DFND 133,090 133,090
Two Sigma Investments LP [2025-06-30] SOLE 105,961 105,961
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