Watsco, Inc.
MX ˙ BMV ˙ US9426222009
SecurityMX:WSO / Watsco, Inc.
InstitutionComerica Bank
Latest Disclosed Ownership45,756 shares
Latest Disclosed Value $ 15,417,264
Comerica Bank reports 36.32% increase in ownership of WSO / Watsco, Inc.

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 45,756 shares of Watsco, Inc. (MX:WSO) valued at $15,417,264 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 33,566 shares of Watsco, Inc.. This represents a change in shares of 36.32% during the quarter.

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)
2026-01-29 2025-12-31 13F WATSCO COM 942622200 45,756 12,190 36.32 15,417 13.61 0.0615
2025-11-14 2025-09-30 13F WATSCO COM 942622200 33,566 -667 -1.95 13,571 -10.23 0.0510
2025-08-14 2025-06-30 13F WATSCO COM 942622200 34,233 29 0.08 15,118 -13.05 0.0587
2025-05-14 2025-03-31 13F WATSCO COM 942622200 34,204 3,340 10.82 17,386 18.87 0.0730
2025-02-14 2024-12-31 13F/A-1 WATSCO COM 942622200 30,864 -1,246 -3.88 14,626 -7.40 0.0590
2025-02-14 2024-12-31 13F WATSCO COM 942622200 30,864 -1,246 14,626 0.0490
2024-11-14 2024-09-30 13F WATSCO COM 942622200 32,110 -947 -2.86 15,794 3.13 0.0625
2024-08-15 2024-06-30 13F WATSCO COMMON 942622200 33,057 -373 -1.12 15,313 6.05 0.0637
2024-05-16 2024-03-31 13F WATSCO COMMON 942622200 33,430 -8,049 -19.41 14,441 -18.75 0.0622
2024-02-14 2023-12-31 13F WATSCO COMMON 942622200 41,479 -362 -0.87 17,772 12.45 0.0819
2023-11-21 2023-09-30 13F WATSCO COMMON 942622200 41,841 41,841 15,804 0.0823
2023-08-22 2023-06-30 13F WATSCO COM 942622200 0 -20,049 -100.00 0 -100.00
2023-01-26 2022-12-31 13F WATSCO COM 942622200 20,049 2,075 11.54 5 -99.89 0.0426
2022-10-28 2022-09-30 13F WATSCO COM 942622200 17,974 -514 -2.78 4,536 -4.57 0.0382
2022-08-02 2022-06-30 13F WATSCO COM 942622200 18,488 -251 -1.34 4,753 -11.49 0.0390
2022-04-27 2022-03-31 13F WATSCO COM 942622200 18,739 263 1.42 5,370 4.21 0.0390
2022-02-18 2021-12-31 13F WATSCO COM 942622200 18,476 -20,527 -52.63 5,153 -53.34 0.0379
2021-11-22 2021-09-30 13F WATSCO COM 942622200 39,003 17,956 85.31 11,043 92.15 0.0665
2021-08-26 2021-06-30 13F WATSCO COM 942622200 21,047 2,260 12.03 5,747 4.68 0.0343
2021-04-28 2021-03-31 13F WATSCO COM 942622200 18,787 -1,016 -5.13 5,490 9.78 0.0327
2021-01-28 2020-12-31 13F WATSCO COM 942622200 19,803 -622 -3.05 5,001 4.01 0.0317
2020-10-30 2020-09-30 13F WATSCO COM 942622200 20,425 -220 -1.07 4,808 18.07 0.0349
2020-07-31 2020-06-30 13F WATSCO COM 942622200 20,645 1,261 6.51 4,072 30.89 0.0314
2020-05-01 2020-03-31 13F WATSCO COM 942622200 19,384 -163 -0.83 3,111 -10.50 0.0285
2020-02-07 2019-12-31 13F WATSCO COM 942622200 19,547 143 0.74 3,476 2.27 0.0263
2019-10-31 2019-09-30 13F WATSCO COM 942622200 19,404 180 0.94 3,399 10.82 0.0269
2019-08-02 2019-06-30 13F WATSCO COM 942622200 19,224 -2,021 -9.51 3,067 1.32 0.0246
2019-05-02 2019-03-31 13F WATSCO COM 942622200 21,245 -196 -0.91 3,027 -4.42 0.0245
2019-02-06 2018-12-31 13F WATSCO COM 942622200 21,441 374 1.78 3,167 -5.86 0.0269
2018-11-01 2018-09-30 13F WATSCO COM 942622200 21,067 -4,176 -16.54 3,364 -26.90 0.0271
2018-08-01 2018-06-30 13F WATSCO COM 942622200 25,243 -831 -3.19 4,602 -6.94 0.0322
2018-05-01 2018-03-31 13F WATSCO COM 942622200 26,074 1,067 4.27 4,945 11.65 0.0353
2018-02-02 2017-12-31 13F WATSCO COM 942622200 25,007 -2,270 -8.32 4,429 -1.73 0.0295
2017-11-06 2017-09-30 13F WATSCO COM 942622200 27,277 -38,208 -58.35 4,507 -53.78 0.0326
2017-08-03 2017-06-30 13F WATSCO COM 942622200 65,485 41,670 174.97 9,751 192.56 0.0730
2017-05-03 2017-03-31 13F WATSCO COM 942622200 23,815 4,167 21.21 3,333 12.75 0.0253
2017-02-08 2016-12-31 13F WATSCO COM 942622200 19,648 1,432 7.86 2,956 13.56 0.0234
2016-08-11 2016-06-30 13F WATSCO COM 942622200 18,216 437 2.46 2,603 8.14 0.0225
2016-05-11 2016-03-31 13F WATSCO COM 942622200 17,779 -458 -2.51 2,407 16.79 0.0215
2016-02-05 2015-12-31 13F WATSCO COM 942622200 18,237 -65 -0.36 2,061 -4.94 0.0202
2015-11-12 2015-09-30 13F WATSCO COM 942622200 18,302 -20,414 -52.73 2,168 -54.74 0.0205
2015-08-13 2015-06-30 13F WATSCO COM 942622200 38,716 19,354 99.96 4,790 96.80 0.0206
2015-05-15 2015-03-31 13F WATSCO COM 942622200 19,362 -43,316 -69.11 2,434 -63.70 0.0206
2015-02-13 2014-12-31 13F WATSCO COM 942622200 62,678 42,695 213.66 6,706 289.43 0.0290
2014-10-21 2014-09-30 13F WATSCO COM 942622200 19,983 323 1.64 1,722 -14.79 0.0152
2014-08-12 2014-06-30 13F WATSCO COM 942622200 19,660 -1,821 -8.48 2,021 -5.82 0.0172
2014-05-15 2014-03-31 13F WATSCO COM 942622200 21,481 468 2.23 2,146 6.34 0.0164
2014-02-11 2013-12-31 13F WATSCO COM 942622200 21,013 -4,116 -16.38 2,018 -14.82 0.0156
2013-11-12 2013-09-30 13F WATSCO COM 942622200 25,129 25,129 2,369 0.0165
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.