Jose Ramon Mas
Jose Ramon Mas: CEO · Director at MasTec. What Jose Ramon 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)
Jose Ramon Mas holds 5.2M MasTec shares (6.5% of the company), worth about $1.2B at the last price, according to the Form 4 of Mar 18, 2026.
- Shares held: 3.3M (4.1%), $727.3M — Held in their own name.
- Shares held: 2.0M (2.5%), $442.8M — Held through companies or funds (Indirect).
Declarations
- MasTec (MTZ) — Form 4 of Aug 11, 2026 (CEO) 0001193125-26-349225
- MasTec (MTZ) — Form 4 of Mar 18, 2026 (CEO): grant or award of 26,397; 5.2M shares after 0000015615-26-000034
- MasTec (MTZ) — Form 4 of Mar 10, 2026 (CEO): shares withheld for tax of 28,184 at $297.81; 5.2M shares after 0000015615-26-000028
- MasTec (MTZ) — Form 4 of Aug 21, 2025 (CEO) 0000950170-25-110961
- MasTec (MTZ) — Form 4 of Mar 24, 2025 (CEO): shares withheld for tax of 23,691 at $124.03; 5.2M shares after 0000015615-25-000041
- MasTec (MTZ) — Form 4 of Mar 18, 2025 (CEO): grant or award of 61,713; 5.3M shares after 0000015615-25-000031
- MasTec (MTZ) — Form 4 of Sep 9, 2024 (CEO) 0000950170-24-105176
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.