Watsco Inc
Ownership
Ownership Structure
Who owns Watsco Inc (WSO)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 94.2% of the shares are freely tradable; institutional investors hold 113.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.91 | 4,090,055 | +11.0 | 03/31/2026 |
| Capital Research & Mgmt Co - Division 3 | 8.45 | 3,485,525 | +0.2 | 06/30/2026 |
| Capital Research Global Investors | 4.61 | 1,902,230 | +0.2 | 06/30/2026 |
| FMR Inc | 4.58 | 1,890,322 | -3.9 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.24 | 1,751,054 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.80 | 1,567,499 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Capital Group Wash Mutual Invtrs Comp | 4.05 | 1,672,366 | +0.0 | 06/30/2026 |
| American Funds Washington Mutual A | 4.05 | 1,672,366 | +0.0 | 06/30/2026 |
| American Funds American Mutual A | 3.75 | 1,548,543 | +0.0 | 06/30/2026 |
| Capital Group American Mutual Comp | 3.75 | 1,548,543 | +0.0 | 06/30/2026 |
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: September 18, 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.