Marshall Wace’s Regeneron Pharmaceuticals REGN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$79.2M Buy
+127,000
New +$86.4M 0.06% 255
2025
Q4
Sell
-800
Closed -$450K 3397
2025
Q3
$450K Buy
+800
New +$452K ﹤0.01% 2270
2021
Q4
Sell
-2,300
Closed -$1.39M 4216
2021
Q3
$1.39M Buy
+2,300
New +$1.43M 0.01% 1797

Other funds holding REGN

Marshall Wace's REGN Position: Q2 2026 in Review

Marshall Wace increased its Regeneron Pharmaceuticals (REGN) stake by 6,416% in Q2 2026, buying an estimated $15.4M and bringing the position to 23,000 shares worth $14.3M. The position accounts for 0.01% of the portfolio, ranked #877.

Marshall Wace first reported a position in REGN in Q2 2014 and has held it in 38 quarters since. The position peaked at $369M in Q4 2025. 1,335 funds tracked by Wall St. Rank hold REGN as of Q2 2026.

  • Marshall Wace held 23,000 shares of Regeneron Pharmaceuticals worth $14.3M as of Q2 2026.
  • Marshall Wace bought 22,647 Regeneron Pharmaceuticals shares in Q2 2026, an estimated $15.4M.
  • Regeneron Pharmaceuticals made up 0.01% of Marshall Wace's portfolio in Q2 2026, its #877 holding.
  • Marshall Wace first reported a position in Regeneron Pharmaceuticals in Q2 2014 and has held it in 38 quarters since.
  • Marshall Wace's Regeneron Pharmaceuticals position peaked at $369M in Q4 2025.
  • 1,335 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q2 2026.

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