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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
17.29%
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
+$248M
3
Two Sigma Investments
Two Sigma Investments
New York
+$214M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
+$193M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
+$166M

Top Sellers

1
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
-$889M
2
Capital World Investors
Capital World Investors
California
-$533M
3
Capital International Investors
Capital International Investors
California
-$474M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$381M
5
Morgan Stanley
Morgan Stanley
New York
-$114M
Name Holding Trade Value Shares
Change 		Shares
Change %
MOACM
301
Mutual of America Capital Management
New York
$7.75M -$545K -860 -7%
CAM
302
Centre Asset Management
New York
$7.74M +$7.74M +12,203 New
EMPI
303
Elo Mutual Pension Insurance
Finland
$7.69M +$7.69M +12,132 New
FMI
304
Factory Mutual Insurance
Massachusetts
$7.67M +$5.2M +8,200 +210%
NAM
305
NorthCrest Asset Manangement
Minnesota
$7.55M +$353K +557 +5%
BS
306
Banco Santander
Spain
$7.52M +$2.77M +4,374 +58%
MAM
307
Martingale Asset Management
Massachusetts
$7.35M -$5.46M -8,612 -43%
WHG
308
Westwood Holdings Group
Texas
$7.35M -$280K -442 -4%
MF
309
Magnetar Financial
Illinois
$7.32M -$61.3M -96,608 -89%
PA
310
Profund Advisors
Maryland
$7.31M -$795K -1,253 -10%
Creative Planning
311
Creative Planning
Kansas
$7.21M +$767K +1,209 +12%
LS
312
Livforsakringsbolaget Skandia
Sweden
$7.18M – – –
YCM
313
Yousif Capital Management
Michigan
$7.02M -$164K -258 -2%
GAM
314
Generali Asset Management
Italy
$7M -$205K -324 -3%
Osaic Holdings
315
Osaic Holdings
Arizona
$6.98M -$3.33M -5,242 -32%
ACA
316
Anchor Capital Advisors
Massachusetts
$6.97M +$95.1K +150 +1%
CCB
317
Cutter & Co Brokerage
Missouri
$6.87M +$1.83M +2,880 +36%
MWM
318
Marietta Wealth Management
Georgia
$6.84M +$1.59M +2,501 +30%
SF
319
Summit Financial
New Jersey
$6.72M +$40.6K +64 +0.6%
Cetera Investment Advisers
320
Cetera Investment Advisers
Illinois
$6.71M +$847K +1,336 +14%
TI
321
Tidal Investments
Wisconsin
$6.67M +$1.78M +2,809 +36%
QCM
322
Quantinno Capital Management
New York
$6.4M +$3.21M +5,065 +101%
TSW
323
Thompson Siegel & Walmsley
Virginia
$6.39M +$1.54M +2,424 +32%
TC
324
TownSquare Capital
Utah
$6.38M +$1.81M +2,854 +40%
VPIM
325
Vanguard Personalized Indexing Management
California
$6.38M -$82.4K -130 -1%
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