MasTec (MTZ)Soros Fund Management added to its stake +4,344 shares

8,275

Shares reported · +4,344 vs prior quarter

0.05%

Disclosed portfolio weight

$3.44M

Reported value

Holdings as of

Jun 30, 2026

Filed

Aug 14, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jun 30, 2026Company filing · Form 8-K · Material agreement, New debtChanged a top executive or board member, and signed an important agreement (and 2 more items)“On June 30, 2026, the Board of Directors (the “Board”) of the Company appointed Mr. Manuel Benito Miranda as a Class II director to fill a vacancy in that Board Class following an increase in the size of the Board from eight (8) to nine (9) directors.”
2. Jul 20, 2026Company filing · Form 8-K · New debtTook on new debt or obligations
3. Jul 24, 2026Company filing · Form 8-K · Results, Executive changeChanged a top executive or board member, and reported its results (and 1 more item)“On July 24, 2026, the Board of Directors (the “Board”) of MasTec, Inc. (the “Company”) appointed Mr. Alexander Benjamin Spiro as a Class III director to fill a vacancy in that Board Class following an increase in the size of the Board from nine (9) to ten (10) directors.”
4. Aug 6, 2026Company filing · Form 8-K · Material agreement, Other newsSigned an important agreement, and reported other company news

What came next

1. Aug 17, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations
2. Aug 21, 2026CongressDisclosed purchase of MTZ — reported range $1,001 - $15,000

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for MasTec

For MasTec, OQRO holds 1 Congress trade report and 17 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its MTZ page.

How this filing works

• SEC Form 13F

Other disclosures at MasTec

• House Clerk periodic transaction reportSep 12, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026

Everything OQRO holds on this company is on its MTZ page.