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Jim Simons's MasTec, Inc. (MTZ) position

Not anymore: Jim Simons fully exited MTZ in Q3 2025. The position peaked at $22M in Q2 2021.
View full portfolio →
Value at exit
$11M
Shares at exit
66K
Est. average buy price (i)
$144.03
Quarter-end price
$170.43

Estimated trade prices

Average price in quarters with purchases
$110.10

MTZ price vs Simons's position

Dates
$40$200$400$600202420252026New position of 122K shares · Q4 2024. Average closing price $134.07 · Price range $120.00–$147.94122KsharespurchasedNew position of 66K shares · Q2 2025. Average closing price $144.03 · Price range $106.07–$171.9966Ksharespurchased← Earlier —3 purchases
Average closing price · filing quarter
$144.03
Price range · filing quarter
$106.07 – $171.99

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q3 2025 Exited −66K −$12M −100.0% 0 Nov 13, 2025
Q2 2025 New +66K +$9.6M 66K Aug 13, 2025
Q4 2024 New +122K +$16M 122K Feb 13, 2025
Q4 2022 New +158K +$13M 158K Feb 13, 2023
Q3 2021 Added +45K +$4.2M +21.2% 255K Nov 12, 2021
Q2 2021 Added +31K +$3.4M +17.3% 210K Aug 13, 2021
Q1 2021 First covered 179K May 13, 2021
Data through Q3 2025 · filed Nov 13, 2025
7 grouped rows from 7 quarters

More Simons positions

Common questions

Does Jim Simons own MTZ?

Not currently. Jim Simons fully exited MTZ in Q3 2025, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy MTZ?

Jim Simons held MTZ since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell MTZ?

Yes. Jim Simons reduced and then fully exited MTZ by Q3 2025; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of MTZ does Jim Simons own?

None as of the latest filing: Jim Simons has exited MTZ. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for MTZ?

Jim Simons's estimated average buy price for MTZ is $144.03, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.