MasTec, Inc.
US ˙ NYSE ˙ US5763231090

SecurityMTZ / MasTec, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership26,296 shares
Latest Disclosed Value $ 8,460,384
Fifth Third Bancorp reports 3,537.07% increase in ownership of MTZ / MasTec, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 26,296 shares of MasTec, Inc. (US:MTZ) valued at $8,460,475 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 723 shares of MasTec, Inc.. This represents a change in shares of 3,537.07% during the quarter. The current value of the position is $9,720,579 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)
2026-05-01 2026-03-31 13F MASTEC COM 576323109 26,296 25,573 3,537.07 8,460 5,288.54 0.0155
2026-02-02 2025-12-31 13F MASTEC COM 576323109 723 12 1.69 157 3.97 0.0005
2025-11-07 2025-09-30 13F MASTEC COM 576323109 711 5 0.71 151 25.83 0.0005
2025-07-15 2025-06-30 13F MASTEC COM 576323109 706 2 0.28 120 46.34 0.0004
2025-04-15 2025-03-31 13F MASTEC COM 576323109 704 126 21.80 82 5.13 0.0003
2025-01-21 2024-12-31 13F MASTEC COM 576323109 578 -44 -7.07 79 2.63 0.0003
2024-10-17 2024-09-30 13F MASTEC COM 576323109 622 69 12.48 77 28.81 0.0003
2024-07-22 2024-06-30 13F MASTEC COM 576323109 553 64 13.09 59 31.11 0.0002
2024-04-23 2024-03-31 13F MASTEC COM 576323109 489 -8 -1.61 46 21.62 0.0002
2024-01-19 2023-12-31 13F MASTEC COM 576323109 497 149 42.82 38 48.00 0.0002
2023-10-31 2023-09-30 13F MASTEC COM 576323109 348 -75 -17.73 25 -48.98 0.0001
2023-07-26 2023-06-30 13F MASTEC COM 576323109 423 12 2.92 50 28.95 0.0002
2023-04-24 2023-03-31 13F MASTEC COM 576323109 411 33 8.73 39 18.75 0.0002
2023-01-25 2022-12-31 13F MASTEC COM 576323109 378 73 23.93 32 68.42 0.0002
2022-10-25 2022-09-30 13F MASTEC COM 576323109 305 7 2.35 19 -9.52 0.0001
2022-08-04 2022-06-30 13F MASTEC COM 576323109 298 -105 -26.05 21 -40.00 0.0001
2022-04-19 2022-03-31 13F MASTEC COM 576323109 403 -68 -14.44 35 -18.60 0.0001
2022-02-01 2021-12-31 13F MASTEC COM 576323109 471 -19 -3.88 43 2.38 0.0002
2021-10-15 2021-09-30 13F MASTEC COM 576323109 490 65 15.29 42 -6.67 0.0002
2021-08-06 2021-06-30 13F MASTEC COM 576323109 425 -170 -28.57 45 -19.64 0.0002
2021-05-07 2021-03-31 13F MASTEC COM 576323109 595 45 8.18 56 51.35 0.0003
2021-02-16 2020-12-31 13F MASTEC COM 576323109 550 -3,828 -87.44 37 -80.00 0.0002
2020-11-09 2020-09-30 13F MASTEC COM 576323109 4,378 -1,198 -21.48 185 -26.00 0.0010
2020-08-05 2020-06-30 13F MASTEC COM 576323109 5,576 584 11.70 250 53.37 0.0015
2020-05-05 2020-03-31 13F MASTEC COM 576323109 4,992 -570 -10.25 163 -54.34 0.0012
2020-02-14 2019-12-31 13F MASTEC COM 576323109 5,562 -301 -5.13 357 -6.30 0.0020
2019-11-14 2019-09-30 13F MASTEC COM 576323109 5,863 -954 -13.99 381 8.55 0.0023
2019-08-07 2019-06-30 13F MASTEC COM 576323109 6,817 -745 -9.85 351 -3.57 0.0021
2019-05-14 2019-03-31 13F MASTEC COM 576323109 7,562 -2,254 -22.96 364 -8.54 0.0023
2019-02-14 2018-12-31 13F MASTEC COM 576323109 9,816 -3,170 -24.41 398 -31.38 0.0029
2018-11-14 2018-09-30 13F MASTEC COM 576323109 12,986 -63 -0.48 580 -12.39 0.0037
2018-08-14 2018-06-30 13F MASTEC COM 576323109 13,049 -324 -2.42 662 5.25 0.0045
2018-05-15 2018-03-31 13F MASTEC COM 576323109 13,373 975 7.86 629 3.62 0.0043
2018-02-14 2017-12-31 13F MASTEC COM 576323109 12,398 1,306 11.77 607 17.86 0.0041
2017-11-14 2017-09-30 13F MASTEC COM 576323109 11,092 11,092 515 0.0037
2016-02-16 2015-12-31 13F MASTEC COM 576323109 0 -77 -100.00 0 -100.00
2015-11-13 2015-09-30 13F MASTEC COM 576323109 77 39 102.63 1 0.00 0.0000
2015-08-14 2015-06-30 13F MASTEC COM 576323109 38 -57 -60.00 1 -50.00 0.0000
2015-05-14 2015-03-31 13F MASTEC COM 576323109 95 95 0.00 2 0.0000
2015-02-13 2014-12-31 13F MASTEC COM 576323109 0 -347 -100.00 0 -100.00
2014-11-17 2014-09-30 13F MASTEC COM 576323109 347 -277 -44.39 11 -42.11 0.0001
2014-08-14 2014-06-30 13F MASTEC COM 576323109 624 0 0.00 19 -29.63 0.0002
2014-05-15 2014-03-31 13F MASTEC COM 576323109 624 624 27 0.0003
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.