Cooper Creek Partners Management’s MasTec MTZ Stock Holding History

Cooper Creek Partners Management’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	$25.5M	Sell	61,295 -22,411	-27%	-$8.57M	0.61%	56
2026 Q1	$26.9M	Sell	83,706 -100,132	-54%	-$27.1M	0.92%	39
2025 Q4	$40M	Buy	183,838 +63,266	+52%	+$13.3M	1.8%	21
2025 Q3	$25.7M	Sell	120,572 -303,346	-72%	-$55.5M	0.79%	41
2025 Q2	$72.2M	Sell	423,918 -290,125	-41%	-$41.8M	2.24%	12
2025 Q1	$83.3M	Buy	714,043 +396,077	+125%	+$53.4M	2.54%	14
2024 Q4	$43.3M	Sell	317,966 -439,926	-58%	-$59M	1.34%	23
2024 Q3	$93.3M	Buy	757,892 +66,284	+10%	+$7.24M	2.56%	11
2024 Q2	$74M	Sell	691,608 -392,522	-36%	-$39.7M	2.47%	12
2024 Q1	$101M	Buy	+1,084,130	New	+$82.4M	3.84%	2
2023 Q3	–	Sell	-338,969	Closed	-$40M	–	106
2023 Q2	$40M	Sell	338,969 -198,831	-37%	-$19.5M	2.66%	8
2023 Q1	$50.8M	Buy	537,800 +323,297	+151%	+$30.7M	3.56%	6
2022 Q4	$18.3M	Buy	214,503 +188,935	+739%	+$15.5M	1.51%	21
2022 Q3	$1.62M	Buy	+25,568	New	+$1.98M	0.17%	94

Other funds holding MTZ

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Peconic Partners New York $8.04B AUM 107.18% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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 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 Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Cooper Creek Partners Management's MTZ Position: Q2 2026 in Review

Cooper Creek Partners Management reduced its MasTec (MTZ) stake by 27% in Q2 2026, selling an estimated $8.57M and leaving 61,295 shares worth $25.5M. The position accounts for 0.61% of the portfolio, ranked #56.

Cooper Creek Partners Management first reported a position in MTZ in Q3 2022 and has held it in 14 quarters since. The position peaked at $101M in Q1 2024. 911 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

Cooper Creek Partners Management held 61,295 shares of MasTec worth $25.5M as of Q2 2026.
Cooper Creek Partners Management sold 22,411 MasTec shares in Q2 2026, an estimated $8.57M.
MasTec made up 0.61% of Cooper Creek Partners Management's portfolio in Q2 2026, its #56 holding.
Cooper Creek Partners Management first reported a position in MasTec in Q3 2022 and has held it in 14 quarters since.
Cooper Creek Partners Management's MasTec position peaked at $101M in Q1 2024.
911 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on Cooper Creek Partners Management's 13F filing for Q2 2026, filed 14 Aug 2026.