Harbour Investments’s MasTec MTZ Stock Holding History

Harbour Investments’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	$543K	Buy	1,688 +1,364	+421%	+$369K	0.01%	1013
2025 Q4	$70.4K	Buy	324 +282	+671%	+$59.2K	﹤0.01%	1798
2025 Q3	$8.94K	Hold	42	–	–	﹤0.01%	2740
2025 Q2	$7.16K	Hold	42	–	–	﹤0.01%	2717
2025 Q1	$4.9K	Buy	42 +28	+200%	+$3.78K	﹤0.01%	2835
2024 Q4	$1.91K	Buy	+14	New	+$1.88K	﹤0.01%	3033
2023 Q1	–	Sell	-16	Closed	-$1.36K	–	3067
2022 Q4	$1.36K	Buy	16 +1	+7%	+$82	﹤0.01%	2618
2022 Q3	$1K	Hold	15	–	–	﹤0.01%	2615
2022 Q2	$1K	Buy	+15	New	+$1.17K	﹤0.01%	2615
2021 Q4	$1K	Hold	13	–	–	﹤0.01%	2534
2021 Q3	$1K	Hold	13	–	–	﹤0.01%	3551
2021 Q2	$1K	Hold	13	–	–	﹤0.01%	3605
2021 Q1	$1K	Buy	+13	New	+$1.11K	﹤0.01%	3435

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

Harbour Investments's MTZ Position: Q1 2026 in Review

Harbour Investments increased its MasTec (MTZ) stake by 421% in Q1 2026, buying an estimated $369K and bringing the position to 1,688 shares worth $543K. The position accounts for 0.01% of the portfolio, ranked #1013.

Harbour Investments first reported a position in MTZ in Q1 2021 and has held it in 13 quarters since. 805 funds tracked by Wall St. Rank hold MTZ as of Q1 2026.

Harbour Investments held 1,688 shares of MasTec worth $543K as of Q1 2026.
Harbour Investments bought 1,364 MasTec shares in Q1 2026, an estimated $369K.
MasTec made up 0.01% of Harbour Investments's portfolio in Q1 2026, its #1013 holding.
Harbour Investments first reported a position in MasTec in Q1 2021 and has held it in 13 quarters since.
805 funds tracked by Wall St. Rank held MasTec as of Q1 2026.

Based on Harbour Investments's 13F filing for Q1 2026, filed 15 May 2026.