Business Context and Reporting Period
Company: MasTec, Inc. (MTZ)
Filing Type: Form 8-K (Current Report)
Date of Report: August 22, 2025
Reporting Period: Event notification regarding a temporary suspension of trading under the Company's employee benefit plans.
Key Financial Metrics
This filing does not contain financial performance data. There are no reported values for revenue, profit, cash flow, margins, debt, or liquidity in this document.
Material Changes
The filing reports a material administrative change regarding the MasTec, Inc. 401(k) Retirement Plan:
- Recordkeeper Transition: The plan is transitioning from Bank of America/Merrill Lynch to Schwab Retirement Plan Services, Inc., effective October 1, 2025.
- Blackout Period: A temporary suspension of trading and transactions is scheduled to begin at 4:00 pm Eastern Time on Monday, September 22, 2025, and is expected to end during the week of October 19, 2025.
- Restricted Activities: During the blackout, participants cannot obtain loans or distributions, contribute rollovers, change investment elections, or request fund transfers involving MasTec Common Stock.
Guidance, Outlook, and Risks
Management Commentary: The Company notified directors and executive officers on August 26, 2025, pursuant to Section 306(a) of the Sarbanes-Oxley Act and Regulation BTR. These insiders are prohibited from purchasing, selling, or transferring MasTec Common Stock acquired through service or employment during the Blackout Period.
Risks and Contingencies: The primary risk disclosed is the temporary inability of plan participants and insiders to access or trade their 401(k) assets during the specified transition window.
Investor Verification Checklist
- Verify the exact start and end dates of the Blackout Period by contacting the 401(k) Plan Administrator, as the end date is currently estimated as "during the week of October 19, 2025."
- Confirm the specific restrictions on MasTec Common Stock transactions for directors and executive officers during the blackout.
- Review the attached Exhibit 99.1 (Notice to Directors and Executive Officers) for detailed compliance requirements.