# WATSCO INC (WSO-B) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 942622200
Page URL: https://superinvestorclub.com/stock/WSO-B
Last updated: 2026-07-08T12:27:31.298Z

## Summary

As of the most recent 13F filing period, WATSCO INC (WSO-B) is held by 1 tracked superinvestors with an aggregate position value of $211.8M representing 0582169 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Tom Gayner](https://superinvestorclub.com/manager/22) | Markel Group | 582169 | $211.8M | 1.77% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-03-31: 1 holders, $244.6M aggregate, 0566250 shares
- 2024-06-30: 1 holders, $264.6M aggregate, 0571250 shares
- 2024-09-30: 1 holders, $286.5M aggregate, 0582500 shares
- 2024-12-31: 1 holders, $279.8M aggregate, 0590500 shares
- 2025-03-31: 1 holders, $300.2M aggregate, 0590500 shares
- 2025-06-30: 1 holders, $249.6M aggregate, 0565169 shares
- 2025-09-30: 1 holders, $228.5M aggregate, 0565169 shares
- 2025-12-31: 1 holders, $194.6M aggregate, 0577669 shares
- 2026-03-31: 1 holders, $211.8M aggregate, 0582169 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "WATSCO INC (WSO-B) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/WSO-B), aggregating SEC 13F, Form 4, and congressional disclosures."