Holocene Advisors
MTZ icon

Holocene Advisors’s MasTec MTZ Stock Holding History

Holocene Advisors’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
-101,724
Closed -$32.7M – 936
2026
Q1 		$32.7M Sell
101,724
-307,022
-75% -$83.1M 0.08% 224
2025
Q4 		$88.8M Buy
+408,746
New +$85.8M 0.19% 145
2025
Q3 		– Sell
-5,592
Closed -$953K – 858
2025
Q2 		$953K Buy
+5,592
New +$805K ﹤0.01% 649
2024
Q2 		– Sell
-64,730
Closed -$6.04M – 792
2024
Q1 		$6.04M Buy
64,730
+37,098
+134% +$2.82M 0.02% 349
2023
Q4 		$2.09M Buy
27,632
+10,352
+60% +$647K 0.01% 526
2023
Q3 		$1.24M Sell
17,280
-68,621
-80% -$6.84M 0.01% 618
2023
Q2 		$10.1M Buy
+85,901
New +$8.41M 0.04% 254
2022
Q4 		– Sell
-12,156
Closed -$772K – 834
2022
Q3 		$772K Sell
12,156
-22,971
-65% -$1.78M ﹤0.01% 662
2022
Q2 		$2.52M Buy
35,127
+21,409
+156% +$1.67M 0.02% 485
2022
Q1 		$1.2M Sell
13,718
-11,121
-45% -$972K 0.01% 665
2021
Q4 		$2.29M Buy
+24,839
New +$2.27M 0.01% 487
2021
Q1 		– Sell
-29,020
Closed -$1.98M – 894
2020
Q4 		$1.98M Sell
29,020
-21,453
-43% -$1.2M 0.01% 419
2020
Q3 		$2.13M Buy
50,473
+33,145
+191% +$1.43M 0.02% 356
2020
Q2 		$778K Buy
+17,328
New +$657K 0.01% 459
2020
Q1 		– Sell
-5,472
Closed -$351K – 771
2019
Q4 		$351K Buy
5,472
+1,706
+45% +$112K ﹤0.01% 642
2019
Q3 		$245K Sell
3,766
-23,176
-86% -$1.35M ﹤0.01% 664
2019
Q2 		$1.39M Buy
26,942
+5,414
+25% +$267K 0.02% 230
2019
Q1 		$1.03M Sell
21,528
-26,834
-55% -$1.21M 0.02% 244
2018
Q4 		$1.96M Buy
48,362
+28,136
+139% +$1.21M 0.03% 159
2018
Q3 		$903K Buy
+20,226
New +$936K 0.01% 343

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

Holocene Advisors's MTZ Position: Q2 2026 in Review

Holocene Advisors sold out of MasTec (MTZ) in Q2 2026, closing a stake of 101,724 shares — an estimated $32.7M sold.

Holocene Advisors first reported a position in MTZ in Q3 2018 and held it in 20 quarters. The position peaked at $88.8M in Q4 2025. 910 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

  • Holocene Advisors reported no remaining MasTec position as of Q2 2026 after selling out during the quarter.
  • Holocene Advisors sold 101,724 MasTec shares in Q2 2026, an estimated $32.7M.
  • Holocene Advisors first reported a position in MasTec in Q3 2018 and held it in 20 quarters.
  • Holocene Advisors's MasTec position peaked at $88.8M in Q4 2025.
  • 910 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on Holocene Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.