Marshall Wace’s Smurfit Westrock SW Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$7.93M Sell
199,086
-3,073,651
-94% -$133M 0.01% 1081
2025
Q4
$127M Sell
3,272,737
-1,610,210
-33% -$61.4M 0.12% 137
2025
Q3
$208M Buy
4,882,947
+1,795,133
+58% +$81.3M 0.21% 71
2025
Q2
$133M Buy
3,087,814
+1,152,904
+60% +$49.3M 0.15% 123
2025
Q1
$87.2M Buy
1,934,910
+862,747
+80% +$43.7M 0.11% 164
2024
Q4
$57.7M Sell
1,072,163
-3,089,175
-74% -$157M 0.07% 258
2024
Q3
$206M Buy
+4,161,338
New +$189M 0.25% 64

Other funds holding SW

Marshall Wace's SW Position: Q1 2026 in Review

Marshall Wace reduced its Smurfit Westrock (SW) stake by 94% in Q1 2026, selling an estimated $133M and leaving 199,086 shares worth $7.93M. The position accounts for 0.01% of the portfolio, ranked #1081.

Marshall Wace first reported a position in SW in Q3 2024 and has held it in 7 quarters since. The position peaked at $208M in Q3 2025. 611 funds tracked by Wall St. Rank hold SW as of Q1 2026.

  • Marshall Wace held 199,086 shares of Smurfit Westrock worth $7.93M as of Q1 2026.
  • Marshall Wace sold 3,073,651 Smurfit Westrock shares in Q1 2026, an estimated $133M.
  • Smurfit Westrock made up 0.01% of Marshall Wace's portfolio in Q1 2026, its #1081 holding.
  • Marshall Wace first reported a position in Smurfit Westrock in Q3 2024 and has held it in 7 quarters since.
  • Marshall Wace's Smurfit Westrock position peaked at $208M in Q3 2025.
  • 611 funds tracked by Wall St. Rank held Smurfit Westrock as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.