Aigen Investment Management’s MasTec MTZ Stock Holding History

Aigen Investment 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	$2M	Buy	6,201 +5,160	+496%	+$1.4M	0.51%	52
2025 Q4	$226K	Buy	1,041 +38	+4%	+$7.97K	0.05%	444
2025 Q3	$213K	Buy	+1,003	New	+$184K	0.03%	658
2025 Q1	–	Sell	-4,170	Closed	-$568K	–	929
2024 Q4	$568K	Sell	4,170 -286	-6%	-$38.3K	0.1%	301
2024 Q3	$549K	Buy	+4,456	New	+$486K	0.11%	295
2023 Q1	–	Sell	-3,358	Closed	-$287K	–	748
2022 Q4	$287K	Buy	+3,358	New	+$275K	0.04%	370
2021 Q4	–	Sell	-15,676	Closed	-$1.35M	–	1132
2021 Q3	$1.35M	Buy	+15,676	New	+$1.49M	0.26%	112
2021 Q1	–	Sell	-6,275	Closed	-$428K	–	796
2020 Q4	$428K	Sell	6,275 -23,372	-79%	-$1.31M	0.06%	435
2020 Q3	$1.25M	Buy	+29,647	New	+$1.27M	0.16%	207
2020 Q2	–	Sell	-31,715	Closed	-$1.04M	–	1128
2020 Q1	$1.04M	Buy	31,715 +6,798	+27%	+$346K	0.14%	201
2019 Q4	$1.6M	Buy	+24,917	New	+$1.64M	0.26%	92

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

Aigen Investment Management's MTZ Position: Q1 2026 in Review

Aigen Investment Management increased its MasTec (MTZ) stake by 496% in Q1 2026, buying an estimated $1.4M and bringing the position to 6,201 shares worth $2M. The position accounts for 0.51% of the portfolio, ranked #52.

Aigen Investment Management first reported a position in MTZ in Q4 2019 and has held it in 11 quarters since. 805 funds tracked by Wall St. Rank hold MTZ as of Q1 2026.

Aigen Investment Management held 6,201 shares of MasTec worth $2M as of Q1 2026.
Aigen Investment Management bought 5,160 MasTec shares in Q1 2026, an estimated $1.4M.
MasTec made up 0.51% of Aigen Investment Management's portfolio in Q1 2026, its #52 holding.
Aigen Investment Management first reported a position in MasTec in Q4 2019 and has held it in 11 quarters since.
805 funds tracked by Wall St. Rank held MasTec as of Q1 2026.

Based on Aigen Investment Management's 13F filing for Q1 2026, filed 15 May 2026.