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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 %
GMFG
501
Greater Midwest Financial Group
Minnesota
$2.03M +$62.1K +98 +3%
HIA
502
Harbor Investment Advisory
Maryland
$2.03M -$263K -414 -11%
AWM
503
Ameliora Wealth Management
Switzerland
$2.03M -$27.9K -44 -1%
LTAS
504
Linden Thomas Advisory Services
North Carolina
$2.02M +$85.6K +135 +4%
JSL
505
JT Stratford LLC
Georgia
$2.02M -$138K -218 -6%
ALMGDA
506
AG2R La Mondiale Gestion d'Actifs
France
$2.01M +$2.01M +4,105 New
TAA
507
TB Alternative Assets
Cayman Islands
$2M +$2M +3,158 New
FWM
508
Forefront Wealth Management
Pennsylvania
$1.98M +$15.2K +24 +0.8%
IIM
509
Illumine Investment Management
Washington
$1.97M +$73.6K +116 +4%
FFA
510
First Foundation Advisors
California
$1.97M +$2.54K +4 +0.1%
AS
511
Aware Super
Australia
$1.95M – – –
KRSITF
512
Kentucky Retirement Systems Insurance Trust Fund
Kentucky
$1.93M +$164K +259 +9%
OGC
513
Oak Grove Capital
New Hampshire
$1.92M +$63.4K +100 +3%
AAIM
514
American Assets Investment Management
California
$1.9M +$1.9M +3,000 New
PGFC
515
Peapack-Gladstone Financial Corp
New Jersey
$1.88M +$82.4K +130 +5%
Walleye Trading
516
Walleye Trading
New York
$1.87M +$1.87M +2,952 New
JFGIW
517
Johnson Financial Group Inc (Wisconsin)
Wisconsin
$1.87M +$189K +298 +11%
ACM
518
Aster Capital Management
United Arab Emirates
$1.85M +$1.85M +2,653 New
DT
519
Diversified Trust
Tennessee
$1.82M +$345K +544 +23%
OSNBOA
520
Old Second National Bank of Aurora
Illinois
$1.81M +$6.34K +10 +0.4%
FB
521
Fulton Bank
Pennsylvania
$1.78M -$164K -258 -8%
RSCM
522
Rock Springs Capital Management
Maryland
$1.78M +$1.78M +2,800 New
SAM
523
Sectoral Asset Management
Quebec, Canada
$1.76M -$398K -627 -18%
SGI
524
Summit Global Investments
Utah
$1.76M -$4.66M -7,342 -73%
SAM
525
Simplify Asset Management
Nevada
$1.75M -$2.22M -3,500 -56%
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