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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 %
JC
326
Jacobs & Co
California
$6.37M +$545K +859 +9%
AI
327
Atria Investments
North Carolina
$6.36M +$2.15M +3,390 +51%
TCM
328
Tang Capital Management
California
$6.34M +$5.07M +8,000 +400%
AIA
329
AIMZ Investment Advisors
California
$6.25M – – –
OA
330
Oak Associates
Ohio
$6.24M – – –
SAM
331
Shell Asset Management
Netherlands
$6.23M -$961K -1,515 -13%
LCM
332
Legato Capital Management
California
$6.21M +$3.35M +5,277 +117%
YIH
333
Y-Intercept (HK)
Hong Kong
$6.15M -$1.15M -1,821 -16%
CRC
334
Catawba River Capital
South Carolina
$6.13M +$248K +391 +4%
Nomura Holdings
335
Nomura Holdings
Japan
$6.11M -$11.5M -18,172 -65%
AV
336
ASR Vermogensbeheer
Netherlands
$6.02M +$6.02M +9,485 New
DILIC
337
Dai-ichi Life Insurance Company
Japan
$5.98M -$313K -494 -5%
WANY
338
Wealthspire Advisors (New York)
New York
$5.93M +$2.37M +3,731 +66%
Parallax Volatility Advisers
339
Parallax Volatility Advisers
California
$5.83M +$5.83M +9,197 New
ET
340
Entropy Technologies
New York
$5.77M +$2.4M +3,790 +72%
OPERF
341
Oregon Public Employees Retirement Fund
Oregon
$5.73M +$6.34K +10 +0.1%
CGIM
342
Capital Group Investment Management
Singapore
$5.66M +$115K +182 +2%
LA
343
Lifeworks Advisors
Michigan
$5.65M +$1.37M +2,166 +32%
SG
344
Sienna Gestion
France
$5.65M -$349K -566 -6%
DA
345
DCF Advisers
Connecticut
$5.64M – – –
BPWM
346
Badgley Phelps Wealth Managers
Washington
$5.62M +$2.46M +3,876 +78%
AF
347
Avanza Fonder
Sweden
$5.57M -$944K -1,509 -14%
CA
348
Cache Advisors
California
$5.46M +$3.02M +4,756 +123%
Kayne Anderson Rudnick Investment Management
349
Kayne Anderson Rudnick Investment Management
California
$5.43M +$2.09M +3,288 +62%
HPCM
350
Hunter Perkins Capital Management
Illinois
$5.38M +$5.38M +8,482 New
12 13
14
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