MasTec, Inc.
US ˙ NYSE ˙ US5763231090

SecurityMTZ / MasTec, Inc.
InstitutionMan Group plc
Latest Disclosed Ownership9,375 shares
Latest Disclosed Value $ 3,016,312
Man Group plc reports 54.61% decrease in ownership of MTZ / MasTec, Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 9,375 shares of MasTec, Inc. (US:MTZ) valued at $3,016,312 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 20,654 shares of MasTec, Inc.. This represents a change in shares of -54.61% during the quarter. The current value of the position is $3,465,563 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)
2026-05-15 2026-03-31 13F MASTEC COM 576323109 9,375 -11,279 -54.61 3,016 -32.81 0.0055
2026-02-17 2025-12-31 13F MASTEC COM 576323109 20,654 -5,787 -21.89 4,490 -20.21 0.0076
2025-11-14 2025-09-30 13F MASTEC COM 576323109 26,441 8,108 44.23 5,627 80.09 0.0098
2025-08-14 2025-06-30 13F MASTEC COM 576323109 18,333 4,995 37.45 3,124 100.77 0.0060
2025-05-15 2025-03-31 13F MASTEC COM 576323109 13,338 -41,076 -75.49 1,557 -78.99 0.0039
2025-02-14 2024-12-31 13F MASTEC COM 576323109 54,414 6,968 14.69 7,408 26.83 0.0195
2024-11-14 2024-09-30 13F MASTEC COM 576323109 47,446 -12,348 -20.65 5,841 -8.71 0.0152
2024-08-14 2024-06-30 13F MASTEC COM 576323109 59,794 -116,112 -66.01 6,397 -61.00 0.0162
2024-05-15 2024-03-31 13F MASTEC COM 576323109 175,906 47,957 37.48 16,403 69.31 0.0414
2024-02-14 2023-12-31 13F MASTEC COM 576323109 127,949 9,688 162.12 0.0270
2023-11-14 2023-09-30 13F MASTEC COM 576323109 3,697 -43.46 0.0115
2023-08-14 2023-06-30 13F MASTEC COM 576323109 55,416 6,537 14.14 0.0202
2023-05-15 2023-03-31 13F MASTEC COM 576323109 5,727 38.07 0.0204
2023-02-14 2022-12-31 13F MASTEC COM 576323109 48,615 -38,316 -44.08 4,148 -24.86 0.0149
2022-11-14 2022-09-30 13F MASTEC COM 576323109 86,931 5,520 16.28 0.0256
2022-08-15 2022-06-30 13F MASTEC COM 576323109 4,747 -56.31 0.0201
2022-05-16 2022-03-31 13F MASTEC COM 576323109 124,734 -40,394 -24.46 10,864 -28.70 0.0378
2022-02-14 2021-12-31 13F MASTEC COM 576323109 165,128 -4,008 -2.37 15,238 4.42 0.0490
2021-11-15 2021-09-30 13F MASTEC COM 576323109 169,136 88,780 110.48 14,593 71.16 0.0512
2021-08-16 2021-06-30 13F MASTEC COM 576323109 80,356 34,740 76.16 8,526 99.49 0.0300
2021-05-17 2021-03-31 13F MASTEC COM 576323109 45,616 40,391 773.03 4,274 1,097.20 0.0188
2021-02-16 2020-12-31 13F MASTEC COM 576323109 5,225 -59,764 -91.96 357 -86.99 0.0016
2020-11-16 2020-09-30 13F MASTEC COM 576323109 64,989 64,989 2,743 0.0108
2020-05-15 2020-03-31 13F MASTEC COM 576323109 0 -227,357 -100.00 0 -100.00
2020-02-18 2019-12-31 13F MASTEC COM 576323109 227,357 114,755 101.91 14,587 99.52 0.0480
2019-11-14 2019-09-30 13F MASTEC COM 576323109 112,602 82,256 271.06 7,311 367.46 0.0272
2019-08-14 2019-06-30 13F MASTEC COM 576323109 30,346 30,346 1,564 0.0057
2019-05-15 2019-03-31 13F MASTEC COM 576323109 0 -14,909 -100.00 0 -100.00
2019-02-14 2018-12-31 13F MASTEC COM 576323109 14,909 -13,467 -47.46 605 -52.25 0.0027
2018-11-14 2018-09-30 13F MASTEC COM 576323109 28,376 19,264 211.41 1,267 174.24 0.0046
2018-08-14 2018-06-30 13F MASTEC COM 576323109 9,112 -5,302 -36.78 462 -31.96 0.0019
2018-05-15 2018-03-31 13F MASTEC COM 576323109 14,414 14,414 679 0.0031
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.