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 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 $5.72T AUM 30.48% 1-Year Est. Return

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 Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return

LPC

Lone Pine Capital Greenwich, Connecticut $12.5B AUM 54.4% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Cooper Creek Partners Management's MTZ Position: Q1 2026 in Review

Cooper Creek Partners Management reduced its MasTec (MTZ) stake by 54% in Q1 2026, selling an estimated $27.1M and leaving 83,706 shares worth $26.9M. The position accounts for 0.92% of the portfolio, ranked #39.

Cooper Creek Partners Management first reported a position in MTZ in Q3 2022 and has held it in 13 quarters since. The position peaked at $101M in Q1 2024. 805 funds tracked by Wall St. Rank hold MTZ as of Q1 2026.

Cooper Creek Partners Management held 83,706 shares of MasTec worth $26.9M as of Q1 2026.
Cooper Creek Partners Management sold 100,132 MasTec shares in Q1 2026, an estimated $27.1M.
MasTec made up 0.92% of Cooper Creek Partners Management's portfolio in Q1 2026, its #39 holding.
Cooper Creek Partners Management first reported a position in MasTec in Q3 2022 and has held it in 13 quarters since.
Cooper Creek Partners Management's MasTec position peaked at $101M in Q1 2024.
805 funds tracked by Wall St. Rank held MasTec as of Q1 2026.

Based on Cooper Creek Partners Management's 13F filing for Q1 2026, filed 15 May 2026.