Mariner
MTZ icon

Mariner’s MasTec MTZ Stock Holding History

Mariner’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 		– Sell
-18,544
Closed -$5.97M – 3777
2026
Q1 		$5.97M Buy
18,544
+509
+3% +$138K 0.01% 984
2025
Q4 		$3.93M Buy
18,035
+1,488
+9% +$312K ﹤0.01% 1122
2025
Q3 		$3.52M Buy
16,547
+7,325
+79% +$1.34M ﹤0.01% 1098
2025
Q2 		$1.57M Buy
9,222
+4,524
+96% +$652K ﹤0.01% 1493
2025
Q1 		$548K Buy
4,698
+2,059
+78% +$278K ﹤0.01% 2137
2024
Q4 		$359K Buy
2,639
+457
+21% +$61.3K ﹤0.01% 2462
2024
Q3 		$269K Buy
2,182
+245
+13% +$26.7K ﹤0.01% 2671
2024
Q2 		$207K Buy
+1,937
New +$196K ﹤0.01% 2773
2023
Q3 		– Sell
-3,599
Closed -$425K – 2976
2023
Q2 		$425K Sell
3,599
-43,513
-92% -$4.26M ﹤0.01% 1862
2023
Q1 		$4.45M Sell
47,112
-823
-2% -$78.2K 0.01% 672
2022
Q4 		$4.09M Sell
47,935
-2,783
-5% -$228K 0.01% 672
2022
Q3 		$3.22M Buy
+50,718
New +$3.92M 0.01% 626

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

Mariner's MTZ Position: Q2 2026 in Review

Mariner sold out of MasTec (MTZ) in Q2 2026, closing a stake of 18,544 shares — an estimated $5.97M sold.

Mariner first reported a position in MTZ in Q3 2022 and held it in 12 quarters. The position peaked at $5.97M in Q1 2026. 911 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

  • Mariner reported no remaining MasTec position as of Q2 2026 after selling out during the quarter.
  • Mariner sold 18,544 MasTec shares in Q2 2026, an estimated $5.97M.
  • Mariner first reported a position in MasTec in Q3 2022 and held it in 12 quarters.
  • Mariner's MasTec position peaked at $5.97M in Q1 2026.
  • 911 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

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