Robert J. Dwyer
Robert J. Dwyer: Director at MasTec. What Robert J. Dwyer 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)
Robert J. Dwyer holds 20,960 MasTec shares (0.03% of the company), worth about $4.3M at the last price, according to the Form 4 of Aug 14, 2026.
- Shares held: 20,960 (0.03%), $4.3M — Held in their own name.
Declarations
- MasTec (MTZ) — Form 4 of Aug 14, 2026: grant or award of 139; shares withheld for tax of 31 at $297.59; 20,960 shares after 0000015615-26-000108
- MasTec (MTZ) — Form 4 of May 15, 2026: grant or award of 95; shares withheld for tax of 21 at $434.77; 20,852 shares after 0000015615-26-000064
- MasTec (MTZ) — Form 4 of Feb 13, 2026: grant or award of 154; shares withheld for tax of 34 at $269.53; 20,778 shares after 0000015615-26-000009
- MasTec (MTZ) — Form 4 of Nov 14, 2025: grant or award of 215; shares withheld for tax of 48 at $192.22; 20,658 shares after 0000015615-25-000148
- MasTec (MTZ) — Form 4 of Aug 15, 2025: grant or award of 232; shares withheld for tax of 52 at $178.00; 20,491 shares after 0000015615-25-000099
- MasTec (MTZ) — Form 4 of May 15, 2025: grant or award of 263; shares withheld for tax of 58 at $157.32; 20,311 shares after 0001628280-25-026607
- MasTec (MTZ) — Form 4 of Feb 14, 2025: grant or award of 304; shares withheld for tax of 67 at $135.78; 20,106 shares after 0000015615-25-000013
- MasTec (MTZ) — Form 4 of Nov 15, 2024: grant or award of 305; shares withheld for tax of 68 at $135.32; 19,869 shares after 0000015615-24-000124
- MasTec (MTZ) — Form 4 of Aug 15, 2024: grant or award of 373; shares withheld for tax of 83 at $110.78; 19,632 shares after 0000015615-24-000083
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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