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
2020 Q4	–	Sell	-32,600	Closed	-$1.38M	–	4078
2020 Q3	$1.38M	Buy	+32,600	New	+$1.4M	﹤0.01%	2647
2020 Q2	–	Sell	-40,000	Closed	-$1.31M	–	4171
2020 Q1	$1.31M	Buy	+40,000	New	+$2.03M	﹤0.01%	2518
2019 Q1	–	Sell	-7,200	Closed	-$292K	–	3806
2018 Q4	$292K	Sell	7,200 -3,800	-35%	-$164K	﹤0.01%	3365
2018 Q3	$491K	Buy	+11,000	New	+$509K	﹤0.01%	3125
2015 Q2	–	Sell	-50,000	Closed	-$965K	–	3822
2015 Q1	$965K	Sell	50,000 -27,900	-36%	-$558K	﹤0.01%	2580
2014 Q4	$1.76M	Buy	77,900 +40,000	+106%	+$989K	﹤0.01%	2372
2014 Q3	$1.16M	Buy	+37,900	New	+$1.13M	﹤0.01%	2677
2014 Q2	–	Sell	-28,500	Closed	-$1.24M	–	4411
2014 Q1	$1.24M	Sell	28,500 -31,500	-53%	-$1.2M	﹤0.01%	2840
2013 Q4	$1.96M	Hold	60,000	–	–	﹤0.01%	2549
2013 Q3	$1.82M	Hold	60,000	–	–	﹤0.01%	2514
2013 Q2	$1.97M	Buy	+60,000	New	+$1.81M	﹤0.01%	2129

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.