State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s MasTec MTZ Stock Holding History

State of Wisconsin Investment Board’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 		$15.3M Sell
47,641
-4,016
-8% -$1.09M 0.04% 453
2025
Q4 		$11.2M Sell
51,657
-30,279
-37% -$6.35M 0.03% 624
2025
Q3 		$17.4M Sell
81,936
-11,589
-12% -$2.12M 0.04% 392
2025
Q2 		$15.9M Sell
93,525
-5,720
-6% -$824K 0.04% 417
2025
Q1 		$11.6M Sell
99,245
-6,252
-6% -$844K 0.03% 548
2024
Q4 		$14.4M Buy
105,497
+14,373
+16% +$1.93M 0.04% 461
2024
Q3 		$11.2M Sell
91,124
-1,581
-2% -$173K 0.03% 584
2024
Q2 		$9.92M Buy
92,705
+6,678
+8% +$675K 0.03% 600
2024
Q1 		$8.02M Sell
86,027
-10,686
-11% -$813K 0.02% 740
2023
Q4 		$7.32M Buy
96,713
+9,163
+10% +$573K 0.02% 797
2023
Q3 		$6.3M Sell
87,550
-942
-1% -$93.9K 0.02% 809
2023
Q2 		$10.4M Sell
88,492
-2,900
-3% -$284K 0.03% 583
2023
Q1 		$8.63M Sell
91,392
-10,974
-11% -$1.04M 0.03% 658
2022
Q4 		$8.73M Sell
102,366
-2,782
-3% -$228K 0.03% 635
2022
Q3 		$6.68M Sell
105,148
-3,749
-3% -$290K 0.02% 785
2022
Q2 		$7.8M Buy
108,897
+10,064
+10% +$785K 0.02% 764
2022
Q1 		$8.61M Buy
98,833
+92,006
+1,348% +$8.04M 0.02% 869
2021
Q4 		$630K Sell
6,827
-208
-3% -$19K ﹤0.01% 1609
2021
Q3 		$607K Sell
7,035
-2,470
-26% -$234K ﹤0.01% 1631
2021
Q2 		$1.01M Buy
9,505
+6,105
+180% +$663K ﹤0.01% 1448
2021
Q1 		$319K Buy
+3,400
New +$291K ﹤0.01% 1837
2019
Q2 		– Sell
-197,170
Closed -$9.48M – 1581
2019
Q1 		$9.48M Buy
197,170
+91,070
+86% +$4.09M 0.03% 633
2018
Q4 		$4.3M Buy
106,100
+80,400
+313% +$3.46M 0.01% 815
2018
Q3 		$1.15M Buy
+25,700
New +$1.19M ﹤0.01% 1167

Other funds holding MTZ

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $178B AUM 37.23% 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

State of Wisconsin Investment Board's MTZ Position: Q1 2026 in Review

State of Wisconsin Investment Board reduced its MasTec (MTZ) stake by 7.8% in Q1 2026, selling an estimated $1.09M and leaving 47,641 shares worth $15.3M. The position accounts for 0.04% of the portfolio, ranked #453.

State of Wisconsin Investment Board first reported a position in MTZ in Q3 2018 and has held it in 24 quarters since. The position peaked at $17.4M in Q3 2025. 807 funds tracked by Wall St. Rank hold MTZ as of Q1 2026.

  • State of Wisconsin Investment Board held 47,641 shares of MasTec worth $15.3M as of Q1 2026.
  • State of Wisconsin Investment Board sold 4,016 MasTec shares in Q1 2026, an estimated $1.09M.
  • MasTec made up 0.04% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #453 holding.
  • State of Wisconsin Investment Board first reported a position in MasTec in Q3 2018 and has held it in 24 quarters since.
  • State of Wisconsin Investment Board's MasTec position peaked at $17.4M in Q3 2025.
  • 807 funds tracked by Wall St. Rank held MasTec as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.