David Shaw’s MasTec MTZ Stock Holding History

David Shaw’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	$4.49M	Buy	+10,800	New	+$4.13M	﹤0.01%	2493
2024 Q4	–	Sell	-18,500	Closed	-$2.28M	–	4706
2024 Q3	$2.28M	Buy	+18,500	New	+$2.02M	﹤0.01%	2620
2021 Q4	–	Sell	-19,000	Closed	-$1.64M	–	5592
2021 Q3	$1.64M	Hold	19,000	–	–	﹤0.01%	3205
2021 Q2	$2.02M	Hold	19,000	–	–	﹤0.01%	2933
2021 Q1	$1.78M	Buy	+19,000	New	+$1.63M	﹤0.01%	2683
2020 Q3	–	Sell	-56,300	Closed	-$2.53M	–	4036
2020 Q2	$2.53M	Buy	+56,300	New	+$2.13M	﹤0.01%	2217
2015 Q1	–	Sell	-20,000	Closed	-$452K	–	3871
2014 Q4	$452K	Sell	20,000 -30,000	-60%	-$742K	﹤0.01%	3405
2014 Q3	$1.53M	Sell	50,000 -6,900	-12%	-$205K	﹤0.01%	2438
2014 Q2	$1.75M	Buy	56,900 +13,900	+32%	+$524K	﹤0.01%	2413
2014 Q1	$1.87M	Buy	43,000 +29,900	+228%	+$1.13M	﹤0.01%	2456
2013 Q4	$429K	Hold	13,100	–	–	﹤0.01%	3815
2013 Q3	$397K	Hold	13,100	–	–	﹤0.01%	3744
2013 Q2	$431K	Buy	+13,100	New	+$395K	﹤0.01%	3352

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

David Shaw's MTZ Position: Q2 2026 in Review

David Shaw increased its MasTec (MTZ) stake by 238% in Q2 2026, buying an estimated $48.5M and bringing the position to 180,243 shares worth $75M. The position accounts for 0.04% of the portfolio, ranked #565.

David Shaw first reported a position in MTZ in Q2 2013 and has held it in 35 quarters since. 908 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

David Shaw held 180,243 shares of MasTec worth $75M as of Q2 2026.
David Shaw bought 126,888 MasTec shares in Q2 2026, an estimated $48.5M.
MasTec made up 0.04% of David Shaw's portfolio in Q2 2026, its #565 holding.
David Shaw first reported a position in MasTec in Q2 2013 and has held it in 35 quarters since.
908 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on D.E. Shaw & Co's 13F filing for Q2 2026, filed 14 Aug 2026.