MasTec, Inc.
US ˙ NYSE ˙ US5763231090

SecurityMTZ / MasTec, Inc.
InstitutionSchubert & Co
Latest Disclosed Ownership2,253 shares
Latest Disclosed Value $ 724,881
Schubert & Co reports 1.70% decrease in ownership of MTZ / MasTec, Inc.

On April 28, 2026 - Schubert & Co filed a 13F-HR form disclosing ownership of 2,253 shares of MasTec, Inc. (US:MTZ) valued at $724,880 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 2,292 shares of MasTec, Inc.. This represents a change in shares of -1.70% during the quarter. The current value of the position is $832,844 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-28 2026-03-31 13F MASTEC COM 576323109 2,253 -39 -1.70 725 45.38 0.5903
2026-02-04 2025-12-31 13F MASTEC COM 576323109 2,292 8 0.35 498 2.47 0.3976
2025-11-18 2025-09-30 13F MASTEC COM 576323109 2,284 10 0.44 486 25.58 0.3575
2025-07-29 2025-06-30 13F MASTEC COM 576323109 2,274 -40 -1.73 388 43.33 0.2741
2025-05-07 2025-03-31 13F MASTEC COM 576323109 2,314 -370 -13.79 270 -26.03 0.1850
2025-01-31 2024-12-31 13F MASTEC COM 576323109 2,684 20 0.75 365 11.62 0.2461
2024-10-18 2024-09-30 13F MASTEC COM 576323109 2,664 2,664 328 0.2333
2023-08-04 2023-06-30 13F MASTEC COM 576323109 0 -71 -100.00 0 -100.00
2023-05-02 2023-03-31 13F MASTEC COM 576323109 71 0 0.00 7 0.00 0.0060
2023-02-01 2022-12-31 13F MASTEC COM 576323109 71 11 18.33 6 50.00 0.0055
2022-10-21 2022-09-30 13F MASTEC COM 576323109 60 15 33.33 4 33.33 0.0038
2022-08-01 2022-06-30 13F MASTEC COM 576323109 45 29 181.25 3 200.00 0.0028
2022-05-16 2022-03-31 13F MASTEC COM 576323109 16 -1 -5.88 1 -50.00 0.0011
2022-01-28 2021-12-31 13F MASTEC COM 576323109 17 17 2 0.0020
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.