Jorge Mas
Jorge Mas: Director at MasTec. What Jorge Mas 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)
Jorge Mas holds 11.4M MasTec shares (14.3% of the company), worth about $2.6B at the last price, according to the Form 4 of Mar 18, 2026.
- Shares held: 6.9M (8.6%), $1.5B — Held through companies or funds (Indirect).
- Shares held: 4.6M (5.7%), $1.0B — Held in their own name.
Declarations
- MasTec (MTZ) — Form 4 of Aug 11, 2026 0001193125-26-349223
- MasTec (MTZ) — Form 4 of Mar 18, 2026: grant or award of 15,838; 11.4M shares after 0000015615-26-000035
- MasTec (MTZ) — Form 4 of Mar 10, 2026: shares withheld for tax of 15,958 at $297.81; 11.4M shares after 0000015615-26-000029
- MasTec (MTZ) — Form 4 of Aug 21, 2025 0000950170-25-110967
- MasTec (MTZ) — Form 4 of Mar 18, 2025: grant or award of 37,028; 11.4M shares after 0000015615-25-000029
- MasTec (MTZ) — Form 4 of Sep 9, 2024 0000950170-24-105185
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.