Watsco, Inc. (WSO) ownership: Top institutional holder: BlackRock, Inc. ($1.49B). Insider activity: Net Seller (0 buys, 4 sells). 7 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 4090055.00 | $1.49B | 2026-03-31 |
| Capital International Investors | 3477231.00 | $1.26B | 2026-03-31 |
| VANGUARD GROUP INC | 3523522.00 | $1.19B | 2025-12-31 |
| Capital Research Global Investors | 1898603.00 | $690.68M | 2026-03-31 |
| FMR LLC | 1890322.00 | $687.68M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1751054.00 | $637.02M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1567499.00 | $570.24M | 2026-03-31 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1340401.00 | $487.20M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-03-11 | |
| Sell | null | 2026-03-11 | |
| Sell | null | 2026-03-11 | |
| Sell | null | 2026-03-11 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.