Watsco, Inc.
US ˙ NYSE ˙ US9426222009

SecurityWSO / Watsco, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership1,943 shares
Latest Disclosed Value $ 706,844
Quantbot Technologies LP reports 76.21% decrease in ownership of WSO / Watsco, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 1,943 shares of Watsco, Inc. (US:WSO) valued at $706,844 USD as of March 31, 2026. The current value of the position is $715,723 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F WATSCO COM 942622200 1,943 -6,224 -76.21 707 -74.34 0.0289
2026-02-10 2025-12-31 13F WATSCO COM 942622200 8,167 -5,472 -40.12 2,752 -50.11 0.0915
2025-11-12 2025-09-30 13F WATSCO COM 942622200 13,639 -8,023 -37.04 5,514 -42.36 0.1500
2025-08-13 2025-06-30 13F WATSCO COM 942622200 21,662 18,245 533.95 9,566 451.04 0.2453
2025-05-13 2025-03-31 13F WATSCO COM 942622200 3,417 -10,191 -74.89 1,737 -73.08 0.0553
2025-02-11 2024-12-31 13F WATSCO COM 942622200 13,608 4,349 46.97 6,449 41.59 0.2356
2024-11-13 2024-09-30 13F WATSCO COM 942622200 9,259 9,259 4,554 0.1797
2024-08-09 2024-06-30 13F WATSCO COM 942622200 0 -15,107 -100.00 0 -100.00
2024-05-06 2024-03-31 13F WATSCO COM 942622200 15,107 14,520 2,473.59 6,526 2,499.60 0.3678
2024-02-14 2023-12-31 13F WATSCO COM 942622200 587 587 252 0.0146
2023-11-07 2023-09-30 13F WATSCO COM 942622200 0 -683 -100.00 0 -100.00
2023-08-08 2023-06-30 13F WATSCO COM 942622200 683 683 261 0.0171
2023-05-12 2023-03-31 13F WATSCO COM 942622200 0 -8,031 -100.00 0 -100.00
2023-02-13 2022-12-31 13F WATSCO COM 942622200 8,031 7,335 1,053.88 2,003 1,018.44 0.1437
2022-11-07 2022-09-30 13F WATSCO COM 942622200 696 -574 -45.20 179 -40.92 0.0135
2022-08-09 2022-06-30 13F WATSCO COM 942622200 1,270 1,270 303 0.0279
2022-05-16 2022-03-31 13F WATSCO COM 942622200 0 -1,360 -100.00 0 -100.00
2022-02-11 2021-12-31 13F WATSCO COM 942622200 1,360 1,360 425 0.0345
2021-11-09 2021-09-30 13F WATSCO COM 942622200 0 -273 -100.00 0 -100.00
2021-08-12 2021-06-30 13F WATSCO COM 942622200 273 -1,332 -82.99 78 -81.34 0.0061
2021-05-14 2021-03-31 13F WATSCO COM 942622200 1,605 1,605 418 0.0398
2021-02-12 2020-12-31 13F WATSCO COM 942622200 0 -2,435 -100.00 0 -100.00
2020-11-16 2020-09-30 13F WATSCO COM 942622200 2,435 2,435 567 0.0650
2020-08-13 2020-06-30 13F WATSCO COM 942622200 0 -660 -100.00 0 -100.00
2020-05-13 2020-03-31 13F WATSCO COM 942622200 660 660 104 0.0678
2019-11-12 2019-09-30 13F WATSCO COM 942622200 0 -1,164 -100.00 0 -100.00
2019-08-13 2019-06-30 13F WATSCO COM 942622200 1,164 -2,511 -68.33 190 -63.88 0.0190
2019-05-13 2019-03-31 13F WATSCO COM 942622200 3,675 -2,316 -38.66 526 -36.85 0.0501
2019-02-13 2018-12-31 13F WATSCO COM 942622200 5,991 5,991 833 0.0815
2018-05-11 2018-03-31 13F WATSCO COM 942622200 0 -9,742 -100.00 0 -100.00
2018-02-12 2017-12-31 13F WATSCO COM 942622200 9,742 8,452 655.19 1,656 700.00 0.1534
2017-11-07 2017-09-30 13F WATSCO COM 942622200 1,290 -4,238 -76.66 207 -73.83 0.0198
2017-05-10 2017-03-31 13F WATSCO COM 942622200 5,528 3,918 243.35 791 232.35 0.0829
2017-02-09 2016-12-31 13F WATSCO COM 942622200 1,610 677 72.56 238 81.68 0.0264
2016-10-31 2016-09-30 13F WATSCO COM 942622200 933 933 0.00 131 0.0146
2016-08-02 2016-06-30 13F WATSCO COM 942622200 0 -476 -100.00 0 -100.00
2016-04-28 2016-03-31 13F WATSCO COM 942622200 476 -750 -61.17 64 -55.24 0.0102
2016-01-22 2015-12-31 13F WATSCO COM 942622200 1,226 1,226 0.00 143 0.0245
2014-10-15 2014-09-30 13F WATSCO COM 942622200 0 -400 -100.00 0 -100.00
2014-07-08 2014-06-30 13F WATSCO COM 942622200 400 100 33.33 41 46.43 0.0065
2014-01-31 2013-12-31 13F WATSCO COM 942622200 300 300 28 0.0137
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.