Watsco, Inc.
MX ˙ BMV ˙ US9426222009
SecurityMX:WSO / Watsco, Inc.
InstitutionM&t Bank Corp
Latest Disclosed Ownership2,610 shares
Latest Disclosed Value $ 949,492
M&t Bank Corp reports 87.10% increase in ownership of WSO / Watsco, Inc.

On May 12, 2026 - M&t Bank Corp filed a 13F-HR form disclosing ownership of 2,610 shares of Watsco, Inc. (MX:WSO) valued at $949,492 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 30, 2026 disclosing 1,395 shares of Watsco, Inc.. This represents a change in shares of 87.10% 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)
2026-05-12 2026-03-31 13F WATSCO COM 942622200 2,610 1,215 87.10 949 102.35 0.0032
2026-01-30 2025-12-31 13F/A-1 WATSCO COM 942622200 1,395 410 41.62 470 18.14 0.0015
2026-01-28 2025-12-31 13F WATSCO COM 942622200 599,662 598,677 32,393 0.0193
2025-11-14 2025-09-30 13F WATSCO COM 942622200 985 -304 -23.58 398 -30.11 0.0013
2025-08-13 2025-06-30 13F WATSCO COM 942622200 1,289 -92 -6.66 569 -18.97 0.0020
2025-04-30 2025-03-31 13F WATSCO COM 942622200 1,381 -305 -18.09 702 -12.16 0.0026
2025-02-06 2024-12-31 13F WATSCO COM 942622200 1,686 23 1.38 799 -2.44 0.0027
2024-11-19 2024-09-30 13F/A-1 WATSCO COM 942622200 1,663 -34 -2.00 818 4.20 0.0027
2024-11-15 2024-09-30 13F WATSCO COM 942622200 1,663 -34 818 0.0005
2024-07-31 2024-06-30 13F WATSCO COM 942622200 1,697 -517 -23.35 786 -17.89 0.0027
2024-05-07 2024-03-31 13F WATSCO COM 942622200 2,214 -305 -12.11 956 -11.40 0.0033
2024-02-06 2023-12-31 13F WATSCO COM 942622200 2,519 530 26.65 1,079 43.87 0.0040
2023-11-02 2023-09-30 13F WATSCO COM 942622200 1,989 60 3.11 751 2.04 0.0030
2023-08-09 2023-06-30 13F WATSCO COM 942622200 1,929 331 20.71 735 44.69 0.0027
2023-05-11 2023-03-31 13F WATSCO COM 942622200 1,598 267 20.06 509 53.47 0.0020
2023-02-13 2022-12-31 13F/A-1 WATSCO COM 942622200 1,331 58 4.56 332 0.91 0.0013
2023-02-13 2022-12-31 13F WATERS COM 942622200 2,313 1,040 672 0.0027
2022-11-17 2022-09-30 13F/A-1 WATSCO COM 942622200 1,273 61 5.03 328 24.71 0.0015
2022-11-14 2022-09-30 13F WATSCO COM 942622200 1,273 61 299 0.0003
2022-08-05 2022-06-30 13F WATSCO COM 942622200 1,212 216 21.69 263 -13.49 0.0012
2022-05-09 2022-03-31 13F WATSCO COM 942622200 996 86 9.45 304 7.04 0.0013
2022-02-07 2021-12-31 13F WATSCO COM 942622200 910 8 0.89 284 18.33 0.0012
2021-10-28 2021-09-30 13F WATSCO COM 942622200 902 0 0.00 240 -7.34 0.0011
2021-08-13 2021-06-30 13F WATSCO COM 942622200 902 -347 -27.78 259 -20.31 0.0011
2021-05-06 2021-03-31 13F WATSCO COM 942622200 1,249 186 17.50 325 34.85 0.0014
2021-02-12 2020-12-31 13F WATSCO COM 942622200 1,063 43 4.22 241 1.69 0.0011
2020-11-06 2020-09-30 13F WATSCO COM 942622200 1,020 1,020 237 0.0012
2020-07-29 2020-06-30 13F Watsco COM 942622200 0 -170 -100.00 0 -100.00
2020-05-14 2020-03-31 13F Watsco COM 942622200 170 170 26,865 0.1589
2019-02-01 2018-12-31 13F WATSCO COM 942622200 0 -2,279 -100.00 0 -100.00
2018-11-09 2018-09-30 13F WATSCO COM 942622200 2,279 156 7.35 406 7.12 0.0020
2018-08-10 2018-06-30 13F WATSCO COM 942622200 2,123 2,123 379 0.0020
2015-08-14 2015-06-30 13F WATSCO COM 942622200 0 -2,281 -100.00 0 -100.00
2015-05-14 2015-03-31 13F WATSCO COM 942622200 2,281 -30 -1.30 287 16.19 0.0018
2015-02-12 2014-12-31 13F WATSCO COM 942622200 2,311 -96 -3.99 247 19.32 0.0015
2014-11-14 2014-09-30 13F WATSCO COM 942622200 2,407 2,407 207 0.0015
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.