Public filings / MTZ on Yahoo Finance (opens in a new tab)
MTZ: insider buying, 13F holders, analyst moves
Mastec Inc
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SEC Form 13F · Q2 2026
5 of our 100 managers hold MTZ
Combined reported value $940.8M; 2 sold out since Q1 2026.
Holders among our 100 managers: 2 in Q3 2023, 5 in Q2 2026.
| Manager | Value | % of portfolio | Change vs Q1 2026 |
|---|---|---|---|
| Lone Pine Capital | $559.7M | 3.42% | Trimmed |
| Coatue Management | $215.2M | 0.44% | Trimmed |
| Third Point | $120.7M | 2.59% | Trimmed |
| Samlyn Capital | $41.9M | 0.69% | Trimmed |
| Soros Fund Management | $3.4M | 0.04% | Added |
Important information
Facts from public SEC filings, shown for information only. Not a recommendation. Not individualized investment advice. Gulfstream Capital and its clients may hold positions in securities shown.