Mariner
REGN icon

Mariner’s Regeneron Pharmaceuticals REGN Stock Holding History

Mariner’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 		$62.4M Sell
100,086
-23,868
-19% -$16.2M 0.07% 227
2026
Q1 		$95.7M Buy
123,954
+28,739
+30% +$22M 0.11% 158
2025
Q4 		$73.5M Buy
95,215
+63,275
+198% +$43M 0.09% 190
2025
Q3 		$18M Buy
31,940
+10,125
+46% +$5.72M 0.02% 450
2025
Q2 		$11.5M Buy
21,815
+9,174
+73% +$5.12M 0.02% 560
2025
Q1 		$8.02M Buy
12,641
+1,053
+9% +$724K 0.01% 631
2024
Q4 		$8.25M Sell
11,588
-140
-1% -$117K 0.01% 610
2024
Q3 		$12.3M Buy
11,728
+899
+8% +$1M 0.02% 479
2024
Q2 		$11.4M Sell
10,829
-129
-1% -$125K 0.02% 481
2024
Q1 		$10.5M Buy
10,958
+372
+4% +$354K 0.02% 498
2023
Q4 		$9.3M Buy
10,586
+3,068
+41% +$2.53M 0.02% 493
2023
Q3 		$6.19M Buy
7,518
+214
+3% +$168K 0.02% 577
2023
Q2 		$5.25M Buy
7,304
+220
+3% +$170K 0.01% 633
2023
Q1 		$5.82M Buy
7,084
+844
+14% +$637K 0.02% 583
2022
Q4 		$4.5M Buy
6,240
+325
+5% +$240K 0.01% 646
2022
Q3 		$4.08M Buy
+5,915
New +$3.72M 0.02% 567
2019
Q2 		– Sell
-857
Closed -$352K – 1142
2019
Q1 		$352K Buy
857
+134
+19% +$55.2K 0.01% 760
2018
Q4 		$270K Buy
+723
New +$265K ﹤0.01% 696

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

Mariner's REGN Position: Q2 2026 in Review

Mariner reduced its Regeneron Pharmaceuticals (REGN) stake by 19% in Q2 2026, selling an estimated $16.2M and leaving 100,086 shares worth $62.4M. The position accounts for 0.07% of the portfolio, ranked #227.

Mariner first reported a position in REGN in Q4 2018 and has held it in 18 quarters since. The position peaked at $95.7M in Q1 2026. 1,335 funds tracked by Wall St. Rank hold REGN as of Q2 2026.

  • Mariner held 100,086 shares of Regeneron Pharmaceuticals worth $62.4M as of Q2 2026.
  • Mariner sold 23,868 Regeneron Pharmaceuticals shares in Q2 2026, an estimated $16.2M.
  • Regeneron Pharmaceuticals made up 0.07% of Mariner's portfolio in Q2 2026, its #227 holding.
  • Mariner first reported a position in Regeneron Pharmaceuticals in Q4 2018 and has held it in 18 quarters since.
  • Mariner's Regeneron Pharmaceuticals position peaked at $95.7M in Q1 2026.
  • 1,335 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.