Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

15%

Beneficial ownership of this reported class.

Shares

11,872,231 shares

Shares beneficially owned as disclosed.

Event date

21 Aug 2025

Date tied to the ownership event or amendment.

Accepted by SEC

22 Aug 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
MTZ
Shares outstanding
79,148,207 shares
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
22 Aug 2025, 16:25:03 UTC
Event date
21 Aug 2025
Source filing
View source filing

Key filing fact

Jorge Mas disclosed 15% ownership in MasTec, Inc. Common Stock, Par Value $.10 Per Share (MTZ) on 21 Aug 2025.

Key facts

  • Jorge Mas filed SCHEDULE 13D/A for MasTec, Inc. Common Stock, Par Value $.10 Per Share (MTZ).
  • Disclosed ownership: 15%.
  • Date of event: 21 Aug 2025.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 22 Aug 2025, 16:25.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (8)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
Jorge Mas 15% 11,872,231 10,222,290 1,649,941 /s/ Jorge Mas Jorge Mas 0000920559
Jorge Mas Holdings I, LLC 7.2% 5,665,484 5,665,484 0 /s/ Jorge Mas Jorge Mas, Manager of Jorge Mas Holdings, LLC, Manager of Jorge Mas Holdings I, LLC
Jorge Mas Holdings, LLC 7.2% 5,665,484 5,665,484 0 /s/ Jorge Mas Jorge Mas, Manager
Jorge Mas Irrevocable Family Trust 1.1% 848,941 0 848,941 /s/ Jose Mas Jose Mas, Trustee
Jose Ramon Mas Irrevocable Family Trust 0.5% 425,000 0 425,000 /s/ Jorge Mas Jorge Mas, Trustee
Mas Equity Partners III, LLC 0.3% 276,000 0 276,000 /s/ Jose Mas Jose Mas, Member
Mas Equity Partners, LLC 0.3% 276,000 0 276,000 /s/ Jorge Mas Jorge Mas, Member
Mas Family Foundation Inc. 0.1% 100,000 0 100,000 /s/ Jorge Mas Jorge Mas, President
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