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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 %
GAI
276
General American Investors
New York
$9.43M – – –
OCM
277
One Capital Management
California
$9.4M +$1.48M +2,337 +19%
LI
278
LMCG Investments
Massachusetts
$9.18M +$6.41M +10,110 +231%
Public Employees Retirement Association of Colorado
279
Public Employees Retirement Association of Colorado
Colorado
$9.1M -$119K -188 -1%
CAPTRUST Financial Advisors
280
CAPTRUST Financial Advisors
North Carolina
$9.06M +$2.77M +4,372 +44%
PAG
281
Private Advisor Group
New Jersey
$9.05M +$1.24M +1,957 +16%
NYLIM
282
New York Life Investment Management
New York
$9.03M -$40.6K -64 -0.4%
Public Sector Pension Investment Board (PSP Investments)
283
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$8.91M +$772K +1,217 +9%
DA
284
Dillon & Associates
Michigan
$8.71M -$103K -163 -1%
AIM
285
ARK Investment Management
Florida
$8.69M +$318K +502 +4%
RIM
286
Rakuten Investment Management
Japan
$8.68M +$8.68M +13,622 New
Janus Henderson Group
287
Janus Henderson Group
United Kingdom
$8.64M +$51K +80 +0.6%
LSERS
288
Louisiana State Employees Retirement System
Louisiana
$8.63M – – –
MGP
289
M&G plc
United Kingdom
$8.61M +$520K +820 +6%
FA
290
Fagan Associates
New York
$8.33M +$129K +203 +2%
HCM
291
Harvey Capital Management
Florida
$8.3M +$17.8K +28 +0.2%
CWM
292
CIBC World Markets
New York
$8.13M -$4.02M -6,333 -33%
Mariner
293
Mariner
Kansas
$8.02M +$668K +1,053 +9%
RAM
294
RK Asset Management
Michigan
$7.97M +$1.63M +2,574 +26%
ACM
295
Aquatic Capital Management
Illinois
$7.97M -$9.21M -14,520 -54%
AA
296
Apriem Advisors
California
$7.89M -$1.31M -2,058 -14%
TPSF
297
Texas Permanent School Fund
Texas
$7.85M +$7.85M +13,113 New
QCM
298
Qsemble Capital Management
New York
$7.81M +$4.79M +7,548 +158%
Calamos Advisors
299
Calamos Advisors
Illinois
$7.78M -$6.59M -10,386 -46%
CCM
300
Catalio Capital Management
New York
$7.78M +$7.78M +12,261 New
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