PEAK6
MTZ icon

PEAK6’s MasTec MTZ Stock Holding History

PEAK6’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 		$1.56M Buy
3,744
+368
+11% +$141K ﹤0.01% 1468
2026
Q1 		$1.09M Sell
3,376
-25,841
-88% -$7M ﹤0.01% 1658
2025
Q4 		$6.35M Buy
29,217
+27,983
+2,268% +$5.87M 0.01% 839
2025
Q3 		$263K Buy
+1,234
New +$226K ﹤0.01% 2383

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

PEAK6's MTZ Position: Q2 2026 in Review

PEAK6 increased its MasTec (MTZ) stake by 11% in Q2 2026, buying an estimated $141K and bringing the position to 3,744 shares worth $1.56M. The position accounts for ﹤0.01% of the portfolio, ranked #1468.

PEAK6 first reported a position in MTZ in Q3 2025 and has held it in 4 quarters since. The position peaked at $6.35M in Q4 2025. 911 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

  • PEAK6 held 3,744 shares of MasTec worth $1.56M as of Q2 2026.
  • PEAK6 bought 368 MasTec shares in Q2 2026, an estimated $141K.
  • MasTec made up ﹤0.01% of PEAK6's portfolio in Q2 2026, its #1468 holding.
  • PEAK6 first reported a position in MasTec in Q3 2025 and has held it in 4 quarters since.
  • PEAK6's MasTec position peaked at $6.35M in Q4 2025.
  • 911 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.