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Atom Investors’s MasTec MTZ Stock Holding History

Atom Investors’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 		$335K Sell
806
-11,907
-94% -$4.55M 0.03% 667
2026
Q1 		$4.09M Buy
12,713
+3,899
+44% +$1.06M 0.29% 104
2025
Q4 		$1.92M Buy
+8,814
New +$1.85M 0.15% 204
2025
Q2 		– Sell
-29,188
Closed -$3.41M – 728
2025
Q1 		$3.41M Buy
29,188
+1,853
+7% +$250K 0.42% 68
2024
Q4 		$3.72M Sell
27,335
-33,683
-55% -$4.52M 0.46% 60
2024
Q3 		$7.51M Buy
61,018
+55,363
+979% +$6.04M 0.79% 23
2024
Q2 		$605K Sell
5,655
-48,353
-90% -$4.88M 0.06% 313
2024
Q1 		$5.04M Buy
54,008
+14,586
+37% +$1.11M 0.63% 35
2023
Q4 		$2.99M Buy
+39,422
New +$2.47M 0.53% 45
2021
Q1 		– Sell
-10,586
Closed -$722K – 369
2020
Q4 		$722K Sell
10,586
-49,976
-83% -$2.8M 0.07% 215
2020
Q3 		$2.56M Sell
60,562
-117,358
-66% -$5.05M 0.24% 98
2020
Q2 		$7.98M Sell
177,920
-10,364
-6% -$393K 0.52% 27
2020
Q1 		$6.16M Buy
188,284
+145,283
+338% +$7.39M 0.54% 45
2019
Q4 		$2.76M Buy
+43,001
New +$2.83M 0.23% 112
2019
Q3 		– Sell
-51,809
Closed -$2.67M – 377
2019
Q2 		$2.67M Sell
51,809
-100,043
-66% -$4.94M 0.17% 160
2019
Q1 		$7.3M Buy
+151,852
New +$6.82M 0.62% 47

Other funds holding MTZ

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
PP
Peconic Partners New York $8.04B AUM 107.18% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
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
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
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Atom Investors's MTZ Position: Q2 2026 in Review

Atom Investors reduced its MasTec (MTZ) stake by 94% in Q2 2026, selling an estimated $4.55M and leaving 806 shares worth $335K. The position accounts for 0.03% of the portfolio, ranked #667.

Atom Investors first reported a position in MTZ in Q1 2019 and has held it in 16 quarters since. The position peaked at $7.98M in Q2 2020. 910 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

  • Atom Investors held 806 shares of MasTec worth $335K as of Q2 2026.
  • Atom Investors sold 11,907 MasTec shares in Q2 2026, an estimated $4.55M.
  • MasTec made up 0.03% of Atom Investors's portfolio in Q2 2026, its #667 holding.
  • Atom Investors first reported a position in MasTec in Q1 2019 and has held it in 16 quarters since.
  • Atom Investors's MasTec position peaked at $7.98M in Q2 2020.
  • 910 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on Atom Investors's 13F filing for Q2 2026, filed 14 Aug 2026.