Marshall Wace’s MasTec MTZ Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q1
Sell
-106,800
Closed -$14.5M 2925
2024
Q4
$14.5M Buy
+106,800
New +$14.3M 0.02% 658

Other funds holding MTZ

Marshall Wace's MTZ Position: Q1 2026 in Review

Marshall Wace reduced its MasTec (MTZ) stake by 99% in Q1 2026, selling an estimated $27.5M and leaving 852 shares worth $274K. The position accounts for ﹤0.01% of the portfolio, ranked #2679.

Marshall Wace first reported a position in MTZ in Q2 2014 and has held it in 24 quarters since. The position peaked at $76.8M in Q2 2024. 805 funds tracked by Wall St. Rank hold MTZ as of Q1 2026.

  • Marshall Wace held 852 shares of MasTec worth $274K as of Q1 2026.
  • Marshall Wace sold 101,551 MasTec shares in Q1 2026, an estimated $27.5M.
  • MasTec made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #2679 holding.
  • Marshall Wace first reported a position in MasTec in Q2 2014 and has held it in 24 quarters since.
  • Marshall Wace's MasTec position peaked at $76.8M in Q2 2024.
  • 805 funds tracked by Wall St. Rank held MasTec as of Q1 2026.

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