MasTec, Inc.
US ˙ NYSE ˙ US5763231090

SecurityMTZ / MasTec, Inc.
InstitutionBLACKROCK ADVANTAGE GLOBAL FUND, INC. - BLACKROCK ADVANTAGE GLOBAL FUND, INC. Investor A
Latest Disclosed Ownership16,858 shares
Latest Disclosed Value $ 2,873,108
BLACKROCK ADVANTAGE GLOBAL FUND, INC. - BLACKROCK ADVANTAGE GLOBAL FUND, INC. Investor A reports 20.48% increase in ownership of MTZ / MasTec, Inc.

On August 28, 2025 - BLACKROCK ADVANTAGE GLOBAL FUND, INC. - BLACKROCK ADVANTAGE GLOBAL FUND, INC. Investor A filed a NPORT-P form disclosing ownership of 16,858 shares of MasTec, Inc. (US:MTZ) valued at $2,873,109 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 13,992 shares of MasTec, Inc.. This represents a change in shares of 20.48% during the quarter. The current value of the position is $6,340,631 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)
2025-08-28 2025-06-30 NP MasTec EC US5763231090 16,858 2,866 20.48 2,873 75.93 0.6070
2025-05-28 2025-03-31 NP MasTec EC US5763231090 13,992 3,041 27.77 1,633 9.60 0.3669
2025-02-25 2024-12-31 NP MasTec EC US5763231090 10,951 8,197 297.64 1,491 523.43 0.4003
2022-05-26 2022-03-31 NP MasTec EC US5763231090 2,754 -507 -15.55 240 -20.33 0.0521
2022-02-25 2021-12-31 NP MasTec EC US5763231090 3,261 3,079 1,691.76 301 1,900.00 0.0608
2021-11-24 2021-09-30 NP MasTec EC US5763231090 182 -141 -43.65 16 -55.88 0.0033
2021-08-26 2021-06-30 NP MasTec EC US5763231090 323 158 95.76 34 126.67 0.0070
2021-05-27 2021-03-31 NP MasTec EC US5763231090 165 -437 -72.59 15 -61.54 0.0036
2019-11-27 2019-09-30 NP MasTec EC US5763231090 602 602 39 0.0092
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.