Hudson Bay Capital Management
REGN icon

Hudson Bay Capital Management’s Regeneron Pharmaceuticals REGN Stock Holding History

Hudson Bay Capital Management’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
2026
Q2 		$10.9M Sell
17,500
-14,501
-45% -$9.87M 0.03% 343
2026
Q1 		$24.7M Buy
32,001
+5,874
+22% +$4.5M 0.09% 169
2025
Q4 		$20.2M Sell
26,127
-7,664
-23% -$5.2M 0.07% 222
2025
Q3 		$19M Sell
33,791
-32,567
-49% -$18.4M 0.06% 236
2025
Q2 		$34.8M Buy
66,358
+45,771
+222% +$25.5M 0.12% 135
2025
Q1 		$13.1M Buy
20,587
+5,581
+37% +$3.84M 0.04% 338
2024
Q4 		$10.7M Sell
15,006
-14,346
-49% -$12M 0.04% 355
2024
Q3 		$30.9M Buy
29,352
+13,294
+83% +$14.8M 0.12% 124
2024
Q2 		$16.9M Buy
+16,058
New +$15.6M 0.08% 154
2024
Q1 		– Sell
-41,500
Closed -$36.4M – 858
2023
Q4 		$36.4M Buy
+41,500
New +$34.2M 0.23% 69
2023
Q3 		– Sell
-600
Closed -$431K – 932
2023
Q2 		$431K Buy
+600
New +$463K ﹤0.01% 635
2023
Q1 		– Sell
-13,400
Closed -$9.67M – 969
2022
Q4 		$9.67M Buy
+13,400
New +$9.89M 0.1% 177
2021
Q2 		– Sell
-38,000
Closed -$18M – 1010
2021
Q1 		$18M Sell
38,000
-500
-1% -$243K 0.22% 60
2020
Q4 		$18.6M Buy
+38,500
New +$20.8M 0.2% 66
2020
Q1 		– Sell
-30,000
Closed -$11.3M – 567
2019
Q4 		$11.3M Sell
30,000
-17,500
-37% -$5.89M 0.25% 70
2019
Q3 		$13.2M Buy
47,500
+25,000
+111% +$7.4M 0.36% 51
2019
Q2 		$7.04M Buy
+22,500
New +$7.49M 0.16% 134
2018
Q4 		– Sell
-15,000
Closed -$6.06M – 900
2018
Q3 		$6.06M Sell
15,000
-10,000
-40% -$3.81M 0.07% 241
2018
Q2 		$8.63M Buy
25,000
+15,000
+150% +$4.69M 0.12% 163
2018
Q1 		$3.44M Buy
+10,000
New +$3.48M 0.07% 318

Other funds holding REGN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Hudson Bay Capital Management's REGN Position: Q2 2026 in Review

Hudson Bay Capital Management reduced its Regeneron Pharmaceuticals (REGN) stake by 45% in Q2 2026, selling an estimated $9.87M and leaving 17,500 shares worth $10.9M. The position accounts for 0.03% of the portfolio, ranked #343.

Hudson Bay Capital Management first reported a position in REGN in Q1 2018 and has held it in 20 quarters since. The position peaked at $36.4M in Q4 2023. 1,333 funds tracked by Wall St. Rank hold REGN as of Q2 2026.

  • Hudson Bay Capital Management held 17,500 shares of Regeneron Pharmaceuticals worth $10.9M as of Q2 2026.
  • Hudson Bay Capital Management sold 14,501 Regeneron Pharmaceuticals shares in Q2 2026, an estimated $9.87M.
  • Regeneron Pharmaceuticals made up 0.03% of Hudson Bay Capital Management's portfolio in Q2 2026, its #343 holding.
  • Hudson Bay Capital Management first reported a position in Regeneron Pharmaceuticals in Q1 2018 and has held it in 20 quarters since.
  • Hudson Bay Capital Management's Regeneron Pharmaceuticals position peaked at $36.4M in Q4 2023.
  • 1,333 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q2 2026.

Based on Hudson Bay Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.