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Regeneron Pharmaceuticals
REGN

Overview Fund Activity

1,273 hedge funds and large institutions have $58.3B invested in Regeneron Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 139 funds opening new positions, 517 increasing their positions, 449 reducing their positions, and 147 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,273
Holders Change
-30
Holders Change %
-2.3%
% of All Funds
17.3%
Holding in Top 10
15
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+7.14%
% of All Funds
0.2%
New
139
Increased
517
Reduced
449
Closed
147
Calls
$974M
Puts
$1B
Net Calls
-$27.6M
Net Calls Change
-$47.5M

Top Buyers

1
Two Sigma Advisers
Two Sigma Advisers
New York
$351M
2
Pacer Advisors
Pacer Advisors
Pennsylvania
$258M
3
Two Sigma Investments
Two Sigma Investments
New York
$236M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
$305M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$446M

Top Sellers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$3.59B
2
Capital World Investors
Capital World Investors
California
$1.23B
3
Capital International Investors
Capital International Investors
California
$2.53B
4
Fidelity Investments
Fidelity Investments
Massachusetts
$4.82B
5
Morgan Stanley
Morgan Stanley
New York
$793M
Name Holding Trade Value Shares
Change 		Shares
Change %
SEI Investments
201
SEI Investments
Pennsylvania
$18.6M +$1.85M +2,913 +11%
BG
202
Bellevue Group
Switzerland
$18.1M -$1.83M -2,889 -9%
SOMRS
203
State of Michigan Retirement System
Michigan
$18.1M -$63.4K -100 -0.3%
TS
204
Tamar Securities
California
$17.8M +$4.9M +7,733 +38%
Janney Montgomery Scott
205
Janney Montgomery Scott
Pennsylvania
$17.8M +$3.16M +4,976 +22%
TCM
206
Traynor Capital Management
Pennsylvania
$17.7M +$1.94M +3,066 +12%
MIM
207
MetLife Investment Management
New Jersey
$17.6M -$344K -543 -2%
BCAM
208
Boston Common Asset Management
Massachusetts
$17.3M +$3.5M +5,525 +25%
EGM
209
Engineers Gate Manager
New York
$17.3M +$12.2M +19,238 +238%
HCM
210
Howland Capital Management
Massachusetts
$16.9M +$7.14M +11,251 +73%
NAM
211
Nissay Asset Management
Japan
$16.8M +$1.45M +2,292 +10%
BIAS
212
Beacon Investment Advisory Services
New Jersey
$16.7M +$1.11M +1,751 +7%
TIAA Trust, National Association
213
TIAA Trust, National Association
North Carolina
$16.5M +$15.2M +23,997 +1,187%
CUAMC
214
China Universal Asset Management Company
China
$16.3M +$606K +955 +4%
APM
215
Avidity Partners Management
Texas
$16.1M +$10.8M +17,000 +202%
OBAM
216
ODDO BHF Asset Management
France
$15.8M +$15.1M +23,799 +2,252%
CNB
217
Czech National Bank
Czech Republic
$15.3M +$849K +1,338 +6%
NAMA
218
Nikko Asset Management Americas
New York
$15.3M -$1.26M -1,990 -8%
COPPSERS
219
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$15.3M +$1.06M +1,676 +7%
Daiwa Securities Group
220
Daiwa Securities Group
Japan
$14.9M +$1.21M +1,906 +9%
HF
221
HRT Financial
New York
$14.9M +$9.49M +14,967 +175%
Corient Private Wealth
222
Corient Private Wealth
Florida
$13.9M -$633K -998 -4%
IMRF
223
Illinois Municipal Retirement Fund
Illinois
$13.8M +$1.76M +2,774 +15%
AAF
224
Andra AP-fonden
Sweden
$13.6M -$7.42M -11,700 -35%
IG
225
ING Group
Netherlands
$13.5M -$4.92M -7,754 -27%
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