Mastec Inc
MTZ- Exchange
- NYSE
- Industry
- Water, Sewer, Pipeline, Comm & Power Line Construction
- SEC CIK
- 0000015615
No open-market purchases or sales by Mastec Inc insiders were filed in the last 90 days; 911 institutions reported holding it in 13F filings for Q2 2026, worth $24.7B in total; 4 superinvestors hold it, including Lone Pine Capital and Coatue Management.
Superinvestors holding MTZ, Q2 2026
4 superinvestors report holding Mastec Inc on Form 13F, worth $899.0M in total. Weight is Mastec Inc's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Lone Pine CapitalStephen Mandel | 3.4% | 1,345,157 | $559.7M | Reduced−12.1% |
| Coatue ManagementPhilippe Laffont | 0.4% | 517,250 | $215.2M | Reduced−11.4% |
| Third PointDaniel Loeb | 2.6% | 290,000 | $120.7M | Reduced−9.4% |
| Soros Fund ManagementGeorge Soros | <0.1% | 8,275 | $3.44M | Added+110.5% |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of MTZ each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
4 superinvestors holding at quarter end
- Added
- Soros Fund Management (+110.5%)
- Reduced
- Lone Pine Capital (−12.1%), Coatue Management (−11.4%), Third Point (−9.4%)
Q1 2026
4 superinvestors holding at quarter end
- New
- Lone Pine Capital
- Reduced
- Coatue Management (−13.9%), Third Point (−65.4%), Soros Fund Management (−73.3%)
Q4 2025
3 superinvestors holding at quarter end
- New
- Coatue Management, Soros Fund Management
- Added
- Third Point (+27.6%)
Q3 2025
1 superinvestor holding at quarter end
- New
- Third Point
Q4 2024
0 superinvestors holding at quarter end
- Sold out
- D1 Capital Partners
Q3 2024
1 superinvestor holding at quarter end
- Reduced
- D1 Capital Partners (−10.5%)
Q2 2024
1 superinvestor holding at quarter end
Q4 2021
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q3 2021
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+807.5%)
Q2 2021
1 superinvestor holding at quarter end