AIM
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Aigen Investment Management’s MasTec MTZ Stock Holding History

Aigen Investment Management’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
-6,201
Closed -$2M – 716
2026
Q1 		$2M Buy
6,201
+5,160
+496% +$1.4M 0.51% 52
2025
Q4 		$226K Buy
1,041
+38
+4% +$7.97K 0.05% 444
2025
Q3 		$213K Buy
+1,003
New +$184K 0.03% 658
2025
Q1 		– Sell
-4,170
Closed -$568K – 929
2024
Q4 		$568K Sell
4,170
-286
-6% -$38.3K 0.1% 301
2024
Q3 		$549K Buy
+4,456
New +$486K 0.11% 295
2023
Q1 		– Sell
-3,358
Closed -$287K – 748
2022
Q4 		$287K Buy
+3,358
New +$275K 0.04% 370
2021
Q4 		– Sell
-15,676
Closed -$1.35M – 1132
2021
Q3 		$1.35M Buy
+15,676
New +$1.49M 0.26% 112
2021
Q1 		– Sell
-6,275
Closed -$428K – 796
2020
Q4 		$428K Sell
6,275
-23,372
-79% -$1.31M 0.06% 435
2020
Q3 		$1.25M Buy
+29,647
New +$1.27M 0.16% 207
2020
Q2 		– Sell
-31,715
Closed -$1.04M – 1128
2020
Q1 		$1.04M Buy
31,715
+6,798
+27% +$346K 0.14% 201
2019
Q4 		$1.6M Buy
+24,917
New +$1.64M 0.26% 92

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 $3.38T AUM 44.17% 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

Aigen Investment Management's MTZ Position: Q2 2026 in Review

Aigen Investment Management sold out of MasTec (MTZ) in Q2 2026, closing a stake of 6,201 shares — an estimated $2M sold.

Aigen Investment Management first reported a position in MTZ in Q4 2019 and held it in 11 quarters. The position peaked at $2M in Q1 2026. 912 funds tracked by Wall St. Rank hold MTZ as of Q2 2026.

  • Aigen Investment Management reported no remaining MasTec position as of Q2 2026 after selling out during the quarter.
  • Aigen Investment Management sold 6,201 MasTec shares in Q2 2026, an estimated $2M.
  • Aigen Investment Management first reported a position in MasTec in Q4 2019 and held it in 11 quarters.
  • Aigen Investment Management's MasTec position peaked at $2M in Q1 2026.
  • 912 funds tracked by Wall St. Rank held MasTec as of Q2 2026.

Based on Aigen Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.