Ardsley Advisory Partners’s MasTec MTZ Stock Holding History

Ardsley Advisory Partners’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	–	Sell	-5,000	Closed	-$1.61M	–	189
2026 Q1	$1.61M	Sell	5,000 -10,000	-67%	-$2.71M	0.21%	103
2025 Q4	$3.26M	Sell	15,000 -5,000	-25%	-$1.05M	0.36%	80
2025 Q3	$4.26M	Buy	+20,000	New	+$3.66M	0.53%	63
2025 Q2	–	Sell	-40,000	Closed	-$4.67M	–	187
2025 Q1	$4.67M	Buy	40,000 +6,000	+18%	+$810K	0.89%	37
2024 Q4	$4.63M	Sell	34,000 -20,250	-37%	-$2.71M	0.73%	53
2024 Q3	$6.68M	Buy	54,250 +39,250	+262%	+$4.28M	1.1%	35
2024 Q2	$1.6M	Buy	15,000 +4,550	+44%	+$460K	0.24%	82
2024 Q1	$974K	Sell	10,450 -19,270	-65%	-$1.47M	0.14%	97
2023 Q4	$2.25M	Sell	29,720 -25,800	-46%	-$1.61M	0.35%	65
2023 Q3	$4M	Sell	55,520 -800	-1%	-$79.7K	0.89%	42
2023 Q2	$6.64M	Buy	56,320 +10,000	+22%	+$979K	1.12%	27
2023 Q1	$4.37M	Sell	46,320 -10,000	-18%	-$951K	0.96%	35
2022 Q4	$4.81M	Buy	+56,320	New	+$4.62M	1%	31
2015 Q4	–	Sell	-15,000	Closed	-$237K	–	178
2015 Q3	$237K	Sell	15,000 -75,000	-83%	-$1.31M	0.06%	117
2015 Q2	$1.79M	Buy	+90,000	New	+$1.68M	0.22%	61
2015 Q1	–	Sell	-449,900	Closed	-$10.2M	–	225
2014 Q4	$10.2M	Sell	449,900 -185,100	-29%	-$4.58M	1.61%	21
2014 Q3	$19.4M	Buy	+635,000	New	+$18.9M	2.56%	7
2014 Q1	–	Sell	-25,000	Closed	-$818K	–	260
2013 Q4	$818K	Buy	+25,000	New	+$791K	0.11%	76

Other funds holding MTZ

HAI

Hennessy Advisors Inc Novato, California $3.13B AUM 77.26% 1-Year Est. Return

CTB

Country Trust Bank Bloomington, Illinois $5.71B AUM 25.48% 1-Year Est. Return

KMC

Kirr Marbach & Co Columbus, Indiana $594M AUM 34% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

CTI

Community Trust & Investment Versailles, Kentucky $1.94B AUM 29.99% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

WCM

Wedge Capital Management Charlotte, North Carolina $6.06B AUM 47.24% 1-Year Est. Return

SFA

Sequoia Financial Advisors Akron, Ohio $20.1B AUM 24.77% 1-Year Est. Return

Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return

SAM

Sycomore Asset Management Paris, France $932M AUM 51.25% 1-Year Est. Return

Ardsley Advisory Partners's MTZ Position: Q2 2026 in Review

Ardsley Advisory Partners sold out of MasTec (MTZ) in Q2 2026, closing a stake of 5,000 shares — an estimated $1.61M sold.

Ardsley Advisory Partners first reported a position in MTZ in Q4 2013 and held it in 18 quarters. The position peaked at $19.4M in Q3 2014. 105 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

Ardsley Advisory Partners reported no remaining MasTec position as of Q2 2026 after selling out during the quarter.
Ardsley Advisory Partners sold 5,000 MasTec shares in Q2 2026, an estimated $1.61M.
Ardsley Advisory Partners first reported a position in MasTec in Q4 2013 and held it in 18 quarters.
Ardsley Advisory Partners's MasTec position peaked at $19.4M in Q3 2014.
105 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on Ardsley Advisory Partners's 13F filing for Q2 2026, filed 13 Jul 2026.