MAM
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Madison Asset Management’s Regeneron Pharmaceuticals REGN Stock Holding History

Madison Asset 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
Q1 		$4.47M Sell
5,784
-185
-3% -$142K 0.06% 173
2025
Q4 		$4.61M Sell
5,969
-142
-2% -$96.4K 0.05% 177
2025
Q3 		$3.44M Sell
6,111
-290
-5% -$164K 0.04% 191
2025
Q2 		$3.36M Sell
6,401
-19
-0.3% -$10.6K 0.04% 197
2025
Q1 		$4.07M Sell
6,420
-25
-0.4% -$17.2K 0.05% 178
2024
Q4 		$4.59M Sell
6,445
-114
-2% -$95.7K 0.05% 173
2024
Q3 		$6.9M Sell
6,559
-1,069
-14% -$1.19M 0.08% 153
2024
Q2 		$8.02M Sell
7,628
-163
-2% -$158K 0.1% 142
2024
Q1 		$7.5M Sell
7,791
-499
-6% -$474K 0.09% 149
2023
Q4 		$7.28M Sell
8,290
-103
-1% -$84.8K 0.1% 149
2023
Q3 		$6.91M Sell
8,393
-134
-2% -$105K 0.1% 150
2023
Q2 		$6.13M Sell
8,527
-31
-0.4% -$23.9K 0.09% 151
2023
Q1 		$7.03M Sell
8,558
-51
-0.6% -$38.5K 0.11% 145
2022
Q4 		$6.21M Sell
8,609
-91
-1% -$67.1K 0.1% 149
2022
Q3 		$5.99M Sell
8,700
-18
-0.2% -$11.3K 0.1% 142
2022
Q2 		$5.15M Buy
+8,718
New +$5.67M 0.08% 161

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

Madison Asset Management's REGN Position: Q1 2026 in Review

Madison Asset Management reduced its Regeneron Pharmaceuticals (REGN) stake by 3.1% in Q1 2026, selling an estimated $142K and leaving 5,784 shares worth $4.47M. The position accounts for 0.06% of the portfolio, ranked #173.

Madison Asset Management first reported a position in REGN in Q2 2022 and has held it in 16 quarters since. The position peaked at $8.02M in Q2 2024. 1,392 funds tracked by Wall St. Rank hold REGN as of Q1 2026.

  • Madison Asset Management held 5,784 shares of Regeneron Pharmaceuticals worth $4.47M as of Q1 2026.
  • Madison Asset Management sold 185 Regeneron Pharmaceuticals shares in Q1 2026, an estimated $142K.
  • Regeneron Pharmaceuticals made up 0.06% of Madison Asset Management's portfolio in Q1 2026, its #173 holding.
  • Madison Asset Management first reported a position in Regeneron Pharmaceuticals in Q2 2022 and has held it in 16 quarters since.
  • Madison Asset Management's Regeneron Pharmaceuticals position peaked at $8.02M in Q2 2024.
  • 1,392 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q1 2026.

Based on Madison Asset Management's 13F filing for Q1 2026, filed 7 May 2026.