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Two Sigma Securities’s Regeneron Pharmaceuticals REGN Stock Holding History

Two Sigma Securities’s Portfolio REGN Stock Details REGN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q1 		– Sell
-800
Closed -$570K – 2070
2024
Q4 		$570K Sell
800
-1,700
-68% -$1.43M 0.08% 317
2024
Q3 		$2.63M Buy
2,500
+1,100
+79% +$1.22M 0.04% 455
2024
Q2 		$1.47M Sell
1,400
-3,700
-73% -$3.59M 0.02% 869
2024
Q1 		$4.91M Buy
5,100
+3,700
+264% +$3.52M 0.05% 404
2023
Q4 		$1.23M Sell
1,400
-800
-36% -$659K 0.01% 930
2023
Q3 		$1.81M Buy
2,200
+1,100
+100% +$865K 0.02% 731
2023
Q2 		$790K Sell
1,100
-7,200
-87% -$5.55M 0.01% 1124
2023
Q1 		$6.82M Buy
8,300
+8,000
+2,667% +$6.03M 0.14% 170
2022
Q4 		$216K Sell
300
-3,500
-92% -$2.58M 0.01% 1876
2022
Q3 		$2.62M Buy
+3,800
New +$2.39M 0.08% 298
2022
Q2 		– Sell
-1,000
Closed -$698K – 2746
2022
Q1 		$698K Buy
+1,000
New +$633K 0.02% 796
2021
Q4 		– Sell
-1,500
Closed -$908K – 1966
2021
Q3 		$908K Buy
1,500
+200
+15% +$124K 0.03% 541
2021
Q2 		$726K Buy
+1,300
New +$659K 0.02% 501
2021
Q1 		– Sell
-5,200
Closed -$2.51M – 1570
2020
Q4 		$2.51M Buy
5,200
+3,400
+189% +$1.84M 0.06% 210
2020
Q3 		$1.01M Sell
1,800
-2,800
-61% -$1.7M 0.02% 347
2020
Q2 		$2.87M Buy
4,600
+2,400
+109% +$1.36M 0.06% 165
2020
Q1 		$1.07M Sell
2,200
-27,800
-93% -$11.5M 0.02% 372
2019
Q4 		$11.3M Buy
30,000
+19,400
+183% +$6.53M 0.08% 204
2019
Q3 		$2.94M Sell
10,600
-6,500
-38% -$1.92M 0.03% 456
2019
Q2 		$5.35M Buy
17,100
+1,400
+9% +$466K 0.06% 225
2019
Q1 		$6.45M Sell
15,700
-3,500
-18% -$1.44M 0.06% 142
2018
Q4 		$7.17M Sell
19,200
-7,300
-28% -$2.67M 0.09% 120
2018
Q3 		$10.7M Sell
26,500
-7,200
-21% -$2.74M 0.07% 194
2018
Q2 		$11.6M Sell
33,700
-2,500
-7% -$782K 0.06% 248
2018
Q1 		$12.5M Buy
36,200
+34,800
+2,486% +$12.1M 0.07% 235
2017
Q4 		$526K Buy
+1,400
New +$567K 0.01% 670

Other funds holding REGN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

Two Sigma Securities's REGN Position: Q1 2026 in Review

Two Sigma Securities opened a new position in Regeneron Pharmaceuticals (REGN) in Q1 2026: 1,135 shares worth $877K. The stake represents 0.1% of the portfolio and ranks #252 among its holdings. This is a return to the name: Two Sigma Securities previously reported a position in REGN as recently as Q3 2025.

Two Sigma Securities first reported a position in REGN in Q4 2015 and has held it in 32 quarters since. The position peaked at $7M in Q4 2023. 1,392 funds tracked by Wall St. Rank hold REGN as of Q1 2026.

  • Two Sigma Securities held 1,135 shares of Regeneron Pharmaceuticals worth $877K as of Q1 2026.
  • Regeneron Pharmaceuticals was a new Two Sigma Securities position in Q1 2026.
  • Regeneron Pharmaceuticals made up 0.1% of Two Sigma Securities's portfolio in Q1 2026, its #252 holding.
  • Two Sigma Securities first reported a position in Regeneron Pharmaceuticals in Q4 2015 and has held it in 32 quarters since.
  • Two Sigma Securities's Regeneron Pharmaceuticals position peaked at $7M in Q4 2023.
  • 1,392 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.