MasTec, Inc.
US ˙ NYSE ˙ US5763231090

SecurityMTZ / MasTec, Inc.
InstitutionCerity Partners LLC
Latest Disclosed Ownership46,034 shares
Latest Disclosed Value $ 14,810,976
Cerity Partners LLC reports 0.04% increase in ownership of MTZ / MasTec, Inc.

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 46,034 shares of MasTec, Inc. (US:MTZ) valued at $14,810,979 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 46,015 shares of MasTec, Inc.. This represents a change in shares of 0.04% during the quarter. The current value of the position is $17,250,321 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 46,034 19 0.04 14,811 48.07 0.0104
2026-02-11 2025-12-31 13F MASTEC COM 576323109 46,015 747 1.65 10,002 3.83 0.0146
2025-10-22 2025-09-30 13F MASTEC COM 576323109 45,268 5,850 14.84 9,633 43.39 0.0156
2025-08-13 2025-06-30 13F MASTEC Stock 576323109 39,418 9,330 31.01 6,718 91.34 0.0120
2025-04-30 2025-03-31 13F MASTEC Stock 576323109 30,088 5,835 24.06 3,512 7.11 0.0071
2025-02-13 2024-12-31 13F MASTEC Stock 576323109 24,253 1,102 4.76 3,278 15.06 0.0071
2024-11-12 2024-09-30 13F MASTEC Stock 576323109 23,151 17,144 285.40 2,850 343.77 0.0063
2024-08-13 2024-06-30 13F MASTEC Stock 576323109 6,007 6,007 643 0.0017
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.