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Generation Bio
GBIO

Overview Fund Activity

82 hedge funds and large institutions have $1.2B invested in Generation Bio in 2021 Q3 according to their latest regulatory filings, with 9 funds opening new positions, 32 increasing their positions, 27 reducing their positions, and 23 closing their positions.

Holders
82
Holders Change
-15
Holders Change %
-15.46%
% of All Funds
1.44%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
9
Increased
32
Reduced
27
Closed
23
Calls
$216K
Puts
$2.9M
Net Calls
-$2.68M
Net Calls Change
+$391K

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$216M
2
MWNA
2
Marshall Wace North America
New York
$11.3M
3
JPMorgan Chase & Co
3
JPMorgan Chase & Co
New York
$45.4M
4
Vanguard Group
4
Vanguard Group
Pennsylvania
$89M
5
BlackRock
5
BlackRock
New York
$78.3M

Top Sellers

1
State Street
1
State Street
Massachusetts
$45.4M
2
CC
2
Casdin Capital
New York
$33.2M
3
American Century Companies
3
American Century Companies
Missouri
$0
4
AIC
4
AWM Investment Company
New York
$0
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$210K
Name Market Value Shares Shares
Change 		Shares
Change %
LCM
26
Laurion Capital Management
New York
$2.29M 91,353 -27,245 -23%
Swiss National Bank
27
Swiss National Bank
Switzerland
$2.04M 81,400 +1,600 +2%
Voloridge Investment Management
28
Voloridge Investment Management
Florida
$1.67M 66,606 -47,678 -42%
PMAM
29
Penn Mutual Asset Management
Pennsylvania
$1.63M 65,040 -8,025 -11%
Citigroup
30
Citigroup
New York
$1.6M 63,826 -94,966 -60%
Rafferty Asset Management
31
Rafferty Asset Management
New York
$1.51M 60,278 -27,146 -31%
Dimensional Fund Advisors
32
Dimensional Fund Advisors
Texas
$1.48M 58,851 +58,851 New
State of Wisconsin Investment Board
33
State of Wisconsin Investment Board
Wisconsin
$1.36M 54,300 – –
California State Teachers Retirement System (CalSTRS)
34
California State Teachers Retirement System (CalSTRS)
California
$1.35M 53,775 -6,632 -11%
AllianceBernstein
35
AllianceBernstein
Tennessee
$1.15M 46,006 – –
RhumbLine Advisers
36
RhumbLine Advisers
Massachusetts
$1.13M 45,105 +1,970 +5%
Marshall Wace
37
Marshall Wace
United Kingdom
$933K 37,206 -74,124 -67%
Bank of America
38
Bank of America
North Carolina
$819K 32,694 +14,286 +78%
Ameriprise
39
Ameriprise
Minnesota
$793K 31,642 +9,207 +41%
New York State Common Retirement Fund
40
New York State Common Retirement Fund
New York
$792K 31,610 -7,617 -19%
Susquehanna International Group
41
Susquehanna International Group
Pennsylvania
$785K 31,329 -1,195 -4%
Simplex Trading
42
Simplex Trading
Illinois
$631K 23,030 -1,368 -6%
UBS AM
43
UBS AM
Illinois
$631K 25,159 +2,685 +12%
CS
44
Credit Suisse
Switzerland
$605K 24,113 +1,392 +6%
AIG
45
American International Group
New York
$601K 23,981 -571 -2%
Manulife (Manufacturers Life Insurance)
46
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$563K 22,456 -1,665 -7%
SG Americas Securities
47
SG Americas Securities
New York
$552K 22,014 +22,014 New
Los Angeles Capital Management
48
Los Angeles Capital Management
California
$534K 21,312 -11,130 -34%
Invesco
49
Invesco
Georgia
$521K 20,761 +3,067 +17%
Principal Financial Group
50
Principal Financial Group
Iowa
$494K 19,681 +7,096 +56%
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