Mastec Inc. – Investors and Politicians Who Own It
MTZ
Investors who own it
8 tracked investors, $907.2M in shares, each from their latest 13F.
| Investor | Value | Share of portfolio |
|---|---|---|
Stephen MandelLone Pine Capital, Q2 2026 | $559.7M | 3.42% |
Philippe LaffontCoatue Management, Q2 2026 | $215.2M | 0.44% |
Dan LoebThird Point, Q2 2026 | $120.7M | 2.58% |
Barry RitholtzRitholtz Wealth Management, Q2 2026 | $3.9M | 0.06% |
George SorosSoros Fund Management, Q2 2026 | $3.4M | 0.04% |
Ray DalioBridgewater Associates, Q2 2026 | $2.9M | 0.01% |
Anand ParekhAlyeska Investment Group, Q2 2026 | $1M | 0.00% |
Jeremy GranthamGMO (Grantham Mayo Van Otterloo), Q2 2026 | $352.4K | 0.00% |
Politicians who own it
Estimated from annual disclosures and trades; values are rough estimates.
| Politician | Est. value | Share of portfolio |
|---|---|---|
Thomas H. Kean, Jr.R-NJ · House | $6.7K | 0.13% |
Investors buying and selling
| Investor | Action | Shares now |
|---|---|---|
| Stephen Mandel | Reduced −12% | 1,345,157 |
| Philippe Laffont | Reduced −11% | 517,250 |
| Anand Parekh | Reduced −97% | 2,500 |
| Dan Loeb | Reduced −9.4% | 290,000 |
| Ray Dalio | Reduced −83% | 6,969 |
| Farallon Capital Management | Sold out | 0 |
| George Soros | Added +111% | 8,275 |
| Barry Ritholtz | Reduced −9.2% | 9,467 |
| Jeremy Grantham | New | 847 |
Politicians trading it
Latest Congress trades disclosed under the STOCK Act; amounts are ranges.
| Politician | Action | Traded |
|---|---|---|
Thomas H. Kean, Jr.R-NJ · House | Bought$1K–$15K | Aug 21, 2026disclosed Sep 12, 2026 |
Markwayne MullinJointR-OK · Senate | Sold$15K–$50K | Feb 4, 2026disclosed Mar 2, 2026 |
Markwayne MullinR-OK · Senate | Sold$15K–$50K | Dec 18, 2025disclosed Jan 13, 2026 |
Markwayne MullinSpouseR-OK · Senate | Sold$15K–$50K | Dec 18, 2025disclosed Jan 13, 2026 |
Lisa C. McClainSpouseR-MI · House | Sold$1K–$15K | Oct 31, 2025disclosed Nov 21, 2025 |
Lisa C. McClainSpouseR-MI · House | Sold$1K–$15K | Oct 30, 2025disclosed Nov 21, 2025 |
Lisa C. McClainSpouseR-MI · House | Bought$1K–$15K | Oct 30, 2025disclosed Nov 21, 2025 |
Lisa C. McClainSpouseR-MI · House | Bought$1K–$15K | Jun 11, 2025disclosed Aug 13, 2025 |
Markwayne MullinJointR-OK · Senate | Bought$1K–$15K | Feb 3, 2025disclosed Feb 27, 2025 |
Markwayne MullinSpouseR-OK · Senate | Bought$15K–$50K | Jan 2, 2025disclosed Jan 31, 2025 |
Markwayne MullinR-OK · Senate | Bought$15K–$50K | Jan 2, 2025disclosed Jan 31, 2025 |