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Riposte Capital’s MasTec MTZ Stock Holding History

Riposte Capital’s Portfolio MTZ Stock Details MTZ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$14.6M Sell
35,000
-35,000
-50% -$13.4M 3.23% 14
2026
Q1 		$22.5M Buy
70,000
+43,141
+161% +$11.7M 5.74% 3
2025
Q4 		$5.84M Buy
+26,859
New +$5.64M 1.26% 26

Other funds holding MTZ

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PP
Peconic Partners New York $8.04B AUM 107.18% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
HCC
Hill City Capital Boston, Massachusetts $4.28B AUM 80.76% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
LPC
Lone Pine Capital Greenwich, Connecticut $16.4B AUM 99.7% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Riposte Capital's MTZ Position: Q2 2026 in Review

Riposte Capital reduced its MasTec (MTZ) stake by 50% in Q2 2026, selling an estimated $13.4M and leaving 35,000 shares worth $14.6M. The position accounts for 3.23% of the portfolio, ranked #14.

Riposte Capital first reported a position in MTZ in Q4 2025 and has held it in 3 quarters since. The position peaked at $22.5M in Q1 2026. 912 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

  • Riposte Capital held 35,000 shares of MasTec worth $14.6M as of Q2 2026.
  • Riposte Capital sold 35,000 MasTec shares in Q2 2026, an estimated $13.4M.
  • MasTec made up 3.23% of Riposte Capital's portfolio in Q2 2026, its #14 holding.
  • Riposte Capital first reported a position in MasTec in Q4 2025 and has held it in 3 quarters since.
  • Riposte Capital's MasTec position peaked at $22.5M in Q1 2026.
  • 912 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on Riposte Capital's 13F filing for Q2 2026, filed 14 Aug 2026.