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Repligen
RGEN

Overview Fund Activity

440 hedge funds and large institutions have $7.35B invested in Repligen in 2025 Q1 according to their latest regulatory filings, with 62 funds opening new positions, 170 increasing their positions, 129 reducing their positions, and 45 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
440
Holders Change
+11
Holders Change %
+2.56%
% of All Funds
5.98%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
62
Increased
170
Reduced
129
Closed
45
Calls
$11M
Puts
$68.6M
Net Calls
-$57.6M
Net Calls Change
-$22.2M

Top Buyers

1
Invesco
1
Invesco
Georgia
$213M
2
Holocene Advisors
2
Holocene Advisors
New York
$122M
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$963M
4
Point72 Asset Management
4
Point72 Asset Management
Connecticut
$142M
5
AIM
5
Artemis Investment Management
United Kingdom
$41.1M

Top Sellers

1
HL
1
Harding Loevner
New Jersey
$0
2
Marshall Wace
2
Marshall Wace
United Kingdom
$10.8M
3
Impax Asset Management Group
3
Impax Asset Management Group
United Kingdom
$101M
4
Ameriprise
4
Ameriprise
Minnesota
$87.2M
5
VOYA Investment Management
5
VOYA Investment Management
Georgia
$13.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
GIM
76
Granahan Investment Management
Massachusetts
$12.9M -$791K -6,218 -6%
Comerica Bank
77
Comerica Bank
Texas
$12.7M +$1.96M +15,408 +18%
LCAM
78
London & Capital Asset Management
United Kingdom
$12.5M -$917K -7,209 -7%
NSAM
79
North Star Asset Management
Wisconsin
$11.4M -$42.5K -334 -0.4%
FLAM
80
First Light Asset Management
Minnesota
$11.2M +$686K +5,395 +7%
ZCI
81
Zevenbergen Capital Investments
Washington
$11.1M -$3.2M -25,160 -22%
California Public Employees Retirement System
82
California Public Employees Retirement System
California
$10.9M +$2.03M +15,968 +23%
Legal & General Group
83
Legal & General Group
United Kingdom
$10.8M +$401K +3,155 +4%
Marshall Wace
84
Marshall Wace
United Kingdom
$10.8M -$41.7M -327,467 -79%
Russell Investments Group
85
Russell Investments Group
United Kingdom
$10.7M +$3.27M +25,702 +44%
B
86
Braidwell
Connecticut
$10.4M -$25.7M -202,167 -71%
Amundi
87
Amundi
France
$10.4M -$68.9K -566 -0.7%
Walleye Capital
88
Walleye Capital
New York
$10.2M +$4.45M +34,996 +77%
OCM
89
Osterweis Capital Management
California
$9.26M +$1.41M +11,080 +18%
PC
90
Pier Capital
Connecticut
$8.1M -$183K -1,436 -2%
Retirement Systems of Alabama
91
Retirement Systems of Alabama
Alabama
$8.07M +$10.9K +86 +0.1%
AIMCA
92
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$8.05M – – –
Manulife (Manufacturers Life Insurance)
93
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$8.02M -$146K -1,146 -2%
CF
94
Corebridge Financial
Texas
$7.34M -$177K -1,391 -2%
Citigroup
95
Citigroup
New York
$7.29M -$3.41M -26,824 -32%
AIC
96
AWM Investment Company
New York
$7.25M -$1.02M -8,000 -12%
WP
97
Woodline Partners
California
$7.15M +$7.15M +56,206 New
State Board of Administration of Florida Retirement System
98
State Board of Administration of Florida Retirement System
Florida
$6.83M – – –
TD Asset Management
99
TD Asset Management
Ontario, Canada
$6.51M +$638K +5,014 +11%
New York State Teachers Retirement System (NYSTRS)
100
New York State Teachers Retirement System (NYSTRS)
New York
$6.49M -$369K -2,900 -5%
2 3
4
5 6