Aventail Capital Group’s MasTec MTZ Stock Holding History

Aventail Capital Group’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	$9.02M	Sell	21,688 -32,719	-60%	-$12.5M	0.52%	70
2026 Q1	$17.5M	Buy	54,407 +35,569	+189%	+$9.63M	0.84%	41
2025 Q4	$4.09M	Sell	18,838 -85,893	-82%	-$18M	0.24%	89
2025 Q3	$22.3M	Buy	+104,731	New	+$19.2M	1.03%	30
2025 Q2	–	Sell	-15,456	Closed	-$1.8M	–	137
2025 Q1	$1.8M	Buy	15,456 +456	+3%	+$61.5K	0.09%	106
2024 Q4	$2.04M	Buy	+15,000	New	+$2.01M	0.1%	95
2024 Q2	–	Sell	-96,761	Closed	-$9.02M	–	104
2024 Q1	$9.02M	Buy	+96,761	New	+$7.36M	0.69%	38

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

Aventail Capital Group's MTZ Position: Q2 2026 in Review

Aventail Capital Group reduced its MasTec (MTZ) stake by 60% in Q2 2026, selling an estimated $12.5M and leaving 21,688 shares worth $9.02M. The position accounts for 0.52% of the portfolio, ranked #70.

Aventail Capital Group first reported a position in MTZ in Q1 2024 and has held it in 7 quarters since. The position peaked at $22.3M in Q3 2025. 911 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

Aventail Capital Group held 21,688 shares of MasTec worth $9.02M as of Q2 2026.
Aventail Capital Group sold 32,719 MasTec shares in Q2 2026, an estimated $12.5M.
MasTec made up 0.52% of Aventail Capital Group's portfolio in Q2 2026, its #70 holding.
Aventail Capital Group first reported a position in MasTec in Q1 2024 and has held it in 7 quarters since.
Aventail Capital Group's MasTec position peaked at $22.3M in Q3 2025.
911 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

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