Quanta Services Inc
Ownership
Ownership Structure
Who owns Quanta Services Inc (PWR)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.0% of the shares are freely tradable; institutional investors hold 95.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.69 | 13,061,264 | -7.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.52 | 9,802,251 | +1.0 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.61 | 6,927,511 | +0.8 | 06/30/2026 |
| State Street Corp | 4.38 | 6,581,807 | +4.7 | 06/30/2026 |
| JPMorgan Chase & Co | 3.53 | 5,308,495 | -12.6 | 06/30/2026 |
| Peconic Partners LLC | 3.14 | 4,720,847 | -5.7 | 06/30/2026 |
| Geode Capital Management, LLC | 2.34 | 3,523,903 | -15.9 | 06/30/2026 |
| FMR Inc | 2.34 | 3,510,968 | -15.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.17 | 4,770,694 | +0.0 | 09/30/2026 |
| Vanguard 500 Index Investor | 2.63 | 3,948,666 | -1.0 | 09/30/2026 |
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: October 30, 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.