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Hartree Partners’s MasTec MTZ Stock Holding History

Hartree Partners’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
Q1 		$257K Buy
+800
New +$217K 0.06% 106
2025
Q3 		– Sell
-3,000
Closed -$511K – 94
2025
Q2 		$511K Buy
+3,000
New +$432K 0.14% 44

Other funds holding MTZ

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
PP
Peconic Partners New York $5.78B AUM 127.23% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
HCC
Hill City Capital Boston, Massachusetts $2.8B AUM 79.27% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
LPC
Lone Pine Capital Greenwich, Connecticut $12.5B AUM 54.4% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Hartree Partners's MTZ Position: Q1 2026 in Review

Hartree Partners opened a new position in MasTec (MTZ) in Q1 2026: 800 shares worth $257K. The stake represents 0.06% of the portfolio and ranks #106 among its holdings. This is a return to the name: Hartree Partners previously reported a position in MTZ as recently as Q2 2025.

Hartree Partners first reported a position in MTZ in Q2 2025 and has held it in 2 quarters since. The position peaked at $511K in Q2 2025. 805 funds tracked by Wall St. Rank hold MTZ as of Q1 2026.

  • Hartree Partners held 800 shares of MasTec worth $257K as of Q1 2026.
  • MasTec was a new Hartree Partners position in Q1 2026.
  • MasTec made up 0.06% of Hartree Partners's portfolio in Q1 2026, its #106 holding.
  • Hartree Partners first reported a position in MasTec in Q2 2025 and has held it in 2 quarters since.
  • Hartree Partners's MasTec position peaked at $511K in Q2 2025.
  • 805 funds tracked by Wall St. Rank held MasTec as of Q1 2026.

Based on Hartree Partners's 13F filing for Q1 2026, filed 12 May 2026.