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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 %
Manulife (Manufacturers Life Insurance)
26
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$46.1K 143,980 – –
Northern Trust
27
Northern Trust
Illinois
$42.6K 133,090 -236,817 -64%
Marshall Wace
28
Marshall Wace
United Kingdom
$37.2K 116,201 +116,201 New
AWM
29
Aegis Wealth Management
Maryland
$36K 88,890 – –
Two Sigma Investments
30
Two Sigma Investments
New York
$33.9K 105,961 +413 +0.4%
CFO
31
Callan Family Office
Pennsylvania
$22.3K 69,735 +69,735 New
AQR Capital Management
32
AQR Capital Management
Connecticut
$20.4K 63,689 -25,325 -28%
ACM
33
Accent Capital Management
Ohio
$20.1K 38 +38 New
KPWS
34
Kestra Private Wealth Services
Texas
$18.2K 57,000 +5,000 +10%
Qube Research & Technologies (QRT)
35
Qube Research & Technologies (QRT)
United Kingdom
$17.8K 55,588 +55,588 New
PAS
36
Point72 Asia (Singapore)
Singapore
$11.2K 34,970 +34,970 New
TSS
37
Two Sigma Securities
New York
$10.5K 32,669 +32,669 New
AHL
38
Abel Hall LLC
Louisiana
$7.54K 23,565 +23,565 New
Prudential Financial
39
Prudential Financial
New Jersey
$7.07K 22,100 -13,475 -38%
TRCT
40
Tower Research Capital (TRC)
New York
$5.11K 15,951 -4,959 -24%
PA
41
PFG Advisors
Arizona
$4.8K 15,000 – –
Barclays
42
Barclays
United Kingdom
$4K 11,483 -49,668 -81%
Mariner
43
Mariner
Kansas
$3.94K 12,292 +12,292 New
Citigroup
44
Citigroup
New York
$3.32K 10,359 -24,428 -70%
JF
45
Jump Financial
Illinois
$3.29K 10,280 +10,280 New
Carson Wealth (CWM LLC)
46
Carson Wealth (CWM LLC)
Nebraska
$2K 6,646 -1,706 -20%
JPMorgan Chase & Co
47
JPMorgan Chase & Co
New York
$1.39K 4,331 -197,628 -98%
Royal Bank of Canada
48
Royal Bank of Canada
Ontario, Canada
$1K 3,015 -2,231 -43%
Russell Investments Group
49
Russell Investments Group
United Kingdom
$865 2,703 – –
SCM
50
Sterling Capital Management
North Carolina
$624 1,949 -854 -30%
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