Parallax Volatility Advisers
REGN icon

Parallax Volatility Advisers’s Regeneron Pharmaceuticals REGN Stock Holding History

Parallax Volatility Advisers’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
-1,700
Closed -$1.21M – 2039
2024
Q4 		$1.21M Hold
1,700
– – ﹤0.01% 1279
2024
Q3 		$1.79M Hold
1,700
– – ﹤0.01% 1168
2024
Q2 		$1.79M Sell
1,700
-3,000
-64% -$2.91M ﹤0.01% 1079
2024
Q1 		$4.52M Sell
4,700
-14,300
-75% -$13.6M 0.01% 764
2023
Q4 		$16.7M Buy
19,000
+3,700
+24% +$3.05M 0.03% 442
2023
Q3 		$12.6M Sell
15,300
-17,100
-53% -$13.4M 0.03% 469
2023
Q2 		$23.3M Buy
32,400
+17,600
+119% +$13.6M 0.05% 311
2023
Q1 		$12.2M Sell
14,800
-7,300
-33% -$5.51M 0.02% 519
2022
Q4 		$15.9M Sell
22,100
-1,100
-5% -$812K 0.02% 601
2022
Q3 		$16M Buy
23,200
+21,600
+1,350% +$13.6M 0.02% 591
2022
Q2 		$945K Buy
+1,600
New +$1.04M ﹤0.01% 1669
2022
Q1 		– Sell
-21,500
Closed -$13.6M – 3100
2021
Q4 		$13.6M Buy
21,500
+8,500
+65% +$5.23M 0.02% 511
2021
Q3 		$7.87M Buy
+13,000
New +$8.07M 0.01% 725
2021
Q1 		– Sell
-200
Closed -$96K – 2037
2020
Q4 		$96K Sell
200
-10,900
-98% -$5.88M ﹤0.01% 1968
2020
Q3 		$6.21M Buy
+11,100
New +$6.73M ﹤0.01% 1207
2020
Q2 		– Sell
-5,800
Closed -$2.83M – 2842
2020
Q1 		$2.83M Sell
5,800
-25,100
-81% -$10.4M ﹤0.01% 1101
2019
Q4 		$11.6M Sell
30,900
-3,900
-11% -$1.31M 0.01% 601
2019
Q3 		$9.65M Sell
34,800
-45,900
-57% -$13.6M 0.01% 607
2019
Q2 		$25.3M Buy
80,700
+8,900
+12% +$2.96M 0.03% 292
2019
Q1 		$29.5M Sell
71,800
-226,500
-76% -$93.3M 0.03% 245
2018
Q4 		$111M Buy
298,300
+287,300
+2,612% +$105M 0.15% 105
2018
Q3 		$4.45M Sell
11,000
-14,000
-56% -$5.33M 0.01% 751
2018
Q2 		$8.63M Sell
25,000
-9,900
-28% -$3.1M 0.01% 470
2018
Q1 		$12M Buy
+34,900
New +$12.1M 0.02% 343
2017
Q4 		– Sell
-5,000
Closed -$2.24M – 4721
2017
Q3 		$2.24M Buy
+5,000
New +$2.38M ﹤0.01% 814

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

Parallax Volatility Advisers's REGN Position: Q1 2026 in Review

Parallax Volatility Advisers sold out of Regeneron Pharmaceuticals (REGN) in Q1 2026, closing a stake of 321 shares — an estimated $248K sold.

Parallax Volatility Advisers first reported a position in REGN in Q1 2014 and held it in 37 quarters. The position peaked at $18M in Q4 2018. 1,393 funds tracked by Wall St. Rank hold REGN as of Q1 2026.

  • Parallax Volatility Advisers reported no remaining Regeneron Pharmaceuticals position as of Q1 2026 after selling out during the quarter.
  • Parallax Volatility Advisers sold 321 Regeneron Pharmaceuticals shares in Q1 2026, an estimated $248K.
  • Parallax Volatility Advisers first reported a position in Regeneron Pharmaceuticals in Q1 2014 and held it in 37 quarters.
  • Parallax Volatility Advisers's Regeneron Pharmaceuticals position peaked at $18M in Q4 2018.
  • 1,393 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.