Paul DiMarco

Paul DiMarco: CFO at MasTec. What Paul DiMarco holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

MasTec (MTZ)

Paul DiMarco holds 76,640 MasTec shares (0.10% of the company), worth about $15.9M at the last price, according to the Form 4 of Mar 18, 2026.

• Shares held: 66,627 (0.08%), $13.8M — Held in their own name.
• Shares held: 10,013 (0.01%), $2.1M — Held in a retirement account (By 401(k) plan).

Declarations

• MasTec (MTZ) — Form 4 of Mar 18, 2026 (CFO): grant or award of 9,074; 76,640 shares after 0000015615-26-000038
• MasTec (MTZ) — Form 4 of Oct 10, 2025 (CFO): shares withheld for tax of 2,925 at $210.09; 67,566 shares after 0000015615-25-000118
• MasTec (MTZ) — Form 4 of Mar 18, 2025 (CFO): grant or award of 20,571; 70,443 shares after 0000015615-25-000023
• MasTec (MTZ) — Form 4 of Oct 13, 2024 (CFO): shares withheld for tax of 493 at $127.39; 49,872 shares after 0000015615-24-000100

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

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