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Generation Bio
GBIO

Overview Fund Activity

60 hedge funds and large institutions have $13.2M invested in Generation Bio in 2025 Q2 according to their latest regulatory filings, with 14 funds opening new positions, 10 increasing their positions, 25 reducing their positions, and 34 closing their positions.

Holders
60
Holders Change
-21
Holders Change %
-25.93%
% of All Funds
0.81%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
14
Increased
10
Reduced
25
Closed
34
Calls
$37K
Puts
–
Net Calls
+$37K
Net Calls Change
+$8K

Top Buyers

1
Millennium Management
1
Millennium Management
New York
$340K
2
YCM
2
Yiheng Capital Management
California
$338K
3
Renaissance Technologies
3
Renaissance Technologies
New York
$826K
4
MCP
4
Militia Capital Partners
Nevada
$174K
5
YIH
5
Y-Intercept (HK)
Hong Kong
$47.4K

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$751K
2
BlackRock
2
BlackRock
New York
$372K
3
State Street
3
State Street
Massachusetts
$66K
4
Geode Capital Management
4
Geode Capital Management
Massachusetts
$159K
5
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$2.71M
Name Market Value Shares Shares
Change 		Shares
Change %
Mirae Asset Global ETFs Holdings
76
Mirae Asset Global ETFs Holdings
Hong Kong
– – -29,957 Closed
CF
77
Corebridge Financial
Texas
– – -24,239 Closed
IC
78
IEQ Capital
California
– – -20,439 Closed
SG Americas Securities
79
SG Americas Securities
New York
– – -18,209 Closed
Cerity Partners
80
Cerity Partners
New York
– – -16,852 Closed
PFSRSONJ
81
Police & Firemen's Retirement System of New Jersey
New Jersey
– – -15,793 Closed
Osaic Holdings
82
Osaic Holdings
Arizona
– – -15,459 Closed
Invesco
83
Invesco
Georgia
– – -13,536 Closed
CWM
84
CIBC World Markets
New York
– – -10,979 Closed
ProShare Advisors
85
ProShare Advisors
Maryland
– – -10,711 Closed
Legal & General Group
86
Legal & General Group
United Kingdom
– – -3,919 Closed
California State Teachers Retirement System (CalSTRS)
87
California State Teachers Retirement System (CalSTRS)
California
– – -3,585 Closed
Ohio Public Employees Retirement System (OPERS)
88
Ohio Public Employees Retirement System (OPERS)
Ohio
– – -3,534 Closed
AIP
89
Ameritas Investment Partners
Nebraska
– – -3,277 Closed
New York State Common Retirement Fund
90
New York State Common Retirement Fund
New York
– – -2,682 Closed
AB
91
Amalgamated Bank
New York
– – -1,526 Closed
CA
92
CoreCap Advisors
Michigan
– – -946 Closed
TWD
93
True Wealth Design
Ohio
– – -129 Closed
HNB
94
Huntington National Bank
Ohio
$0 1 – –
1 2 3
4