ECP
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Electron Capital Partners’s MasTec MTZ Stock Holding History

Electron Capital 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
Q2 		$258M Sell
620,190
-92,823
-13% -$35.5M 10.3% 2
2026
Q1 		$229M Sell
713,013
-91,290
-11% -$24.7M 8.98% 2
2025
Q4 		$175M Sell
804,303
-14,788
-2% -$3.1M 8.12% 2
2025
Q3 		$174M Buy
819,091
+71,758
+10% +$13.1M 7.9% 2
2025
Q2 		$127M Buy
747,333
+14,504
+2% +$2.09M 6.81% 5
2025
Q1 		$85.5M Sell
732,829
-304,080
-29% -$41M 5.61% 7
2024
Q4 		$141M Sell
1,036,909
-229,660
-18% -$30.8M 7.34% 4
2024
Q3 		$156M Sell
1,266,569
-165,766
-12% -$18.1M 7.5% 3
2024
Q2 		$153M Sell
1,432,335
-287,741
-17% -$29.1M 7.88% 2
2024
Q1 		$160M Sell
1,720,076
-5,133
-0.3% -$390K 7.03% 4
2023
Q4 		$131M Buy
1,725,209
+238,874
+16% +$14.9M 5.5% 3
2023
Q3 		$107M Buy
1,486,335
+66,589
+5% +$6.64M 4.8% 8
2023
Q2 		$167M Sell
1,419,746
-36,033
-2% -$3.53M 7.22% 2
2023
Q1 		$137M Sell
1,455,779
-119,642
-8% -$11.4M 5.96% 4
2022
Q4 		$134M Buy
1,575,421
+255,022
+19% +$20.9M 5.5% 5
2022
Q3 		$83.8M Buy
1,320,399
+526,537
+66% +$40.7M 3.69% 8
2022
Q2 		$56.9M Sell
793,862
-6,683
-0.8% -$521K 2.67% 13
2022
Q1 		$69.7M Buy
800,545
+10,320
+1% +$902K 2.78% 13
2021
Q4 		$72.9M Sell
790,225
-53,337
-6% -$4.87M 3.74% 9
2021
Q3 		$72.8M Buy
843,562
+158,850
+23% +$15.1M 3.85% 9
2021
Q2 		$72.6M Sell
684,712
-22,363
-3% -$2.43M 3.52% 7
2021
Q1 		$66.3M Buy
707,075
+160,528
+29% +$13.7M 4.59% 5
2020
Q4 		$37.3M Buy
+546,547
New +$30.7M 2.56% 14
2020
Q2 		– Sell
-52,874
Closed -$1.73M – 36
2020
Q1 		$1.73M Buy
+52,874
New +$2.69M 0.45% 21
2015
Q1 		– Sell
-87,296
Closed -$1.97M – 39
2014
Q4 		$1.97M Buy
+87,296
New +$2.16M 1.19% 22

Other funds holding MTZ

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Peconic Partners
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 $3.38T AUM 44.17% 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
Lone Pine Capital
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

Electron Capital Partners's MTZ Position: Q2 2026 in Review

Electron Capital Partners reduced its MasTec (MTZ) stake by 13% in Q2 2026, selling an estimated $35.5M and leaving 620,190 shares worth $258M. The position accounts for 10.3% of the portfolio, ranked #2.

Electron Capital Partners first reported a position in MTZ in Q4 2014 and has held it in 25 quarters since. 912 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

  • Electron Capital Partners held 620,190 shares of MasTec worth $258M as of Q2 2026.
  • Electron Capital Partners sold 92,823 MasTec shares in Q2 2026, an estimated $35.5M.
  • MasTec made up 10.3% of Electron Capital Partners's portfolio in Q2 2026, its #2 holding.
  • Electron Capital Partners first reported a position in MasTec in Q4 2014 and has held it in 25 quarters since.
  • 912 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on Electron Capital Partners's 13F filing for Q2 2026, filed 14 Aug 2026.