MasTec Inc (MTZ)
Industrials
Engineering & Construction
—
263.10 $
Closing price · As of: 31. Jul 2026
Who owns MasTec Inc (MTZ)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 76.8% of the shares are freely tradable; institutional investors hold 75.8%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
75.8%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
76.8%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
5.9%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
79Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.25 | 7,309,609 | +2.8 | 03/31/2026 |
| Vanguard Group Inc | 7.51 | 5,932,754 | -1.2 | 12/31/2025 |
| Peconic Partners LLC | 4.53 | 3,578,431 | +123.7 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.55 | 2,804,295 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 3.51 | 2,770,038 | +0.0 | 03/31/2026 |
| Hill City Capital, LP | 2.73 | 2,155,000 | +0.0 | 03/31/2026 |
| State Street Corp | 2.37 | 1,869,788 | +2.4 | 03/31/2026 |
| Victory Capital Management Inc. | 2.02 | 1,592,523 | -39.6 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 2.63 | 2,080,834 | +0.0 | 05/29/2026 |
| Vanguard Total Stock Mkt Idx Inv | 2.54 | 2,009,586 | +0.3 | 04/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.