Watsco, Inc.
MX ˙ BMV ˙ US9426222009
SecurityMX:WSO / Watsco, Inc.
InstitutionDearborn Partners Llc
Latest Disclosed Ownership89,590 shares
Latest Disclosed Value $ 32,592,033
Dearborn Partners Llc reports 5.43% decrease in ownership of WSO / Watsco, Inc.

On May 12, 2026 - Dearborn Partners Llc filed a 13F-HR form disclosing ownership of 89,590 shares of Watsco, Inc. (MX:WSO) valued at $32,592,033 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 94,731 shares of Watsco, Inc.. This represents a change in shares of -5.43% 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 89,590 -5,141 -5.43 32,592 2.11 1.7643
2026-02-11 2025-12-31 13F Watsco COM 942622200 94,731 -3,204 -3.27 31,920 -19.39 1.5940
2025-11-10 2025-09-30 13F Watsco COM 942622200 97,935 11,878 13.80 39,595 4.19 1.8566
2025-08-14 2025-06-30 13F Watsco COM 942622200 86,057 8,449 10.89 38,004 -3.66 1.7990
2025-05-08 2025-03-31 13F Watsco COM 942622200 77,608 -16,877 -17.86 39,448 -11.90 1.8937
2025-02-07 2024-12-31 13F Watsco COM 942622200 94,485 -1,090 -1.14 44,775 -4.76 1.8761
2024-11-06 2024-09-30 13F Watsco COM 942622200 95,575 -4,092 -4.11 47,011 1.82 1.9083
2024-07-26 2024-06-30 13F Watsco COM 942622200 99,667 -2,582 -2.53 46,170 4.53 1.9963
2024-05-08 2024-03-31 13F Watsco COM 942622200 102,249 -34,304 -25.12 44,169 -24.51 1.8962
2024-01-26 2023-12-31 13F Watsco COM 942622200 136,553 -38,153 -21.84 58,509 -11.34 2.1312
2023-11-01 2023-09-30 13F Watsco COM 942622200 174,706 337 0.19 65,990 -0.79 2.5895
2023-08-03 2023-06-30 13F Watsco COM 942622200 174,369 -194 -0.11 66,517 19.76 2.5453
2023-05-04 2023-03-31 13F Watsco COM 942622200 174,563 1,974 1.14 55,539 29.03 2.1848
2023-02-02 2022-12-31 13F Watsco COM 942622200 172,589 -1,302 -0.75 43,044 -3.86 1.7373
2022-11-21 2022-09-30 13F/A-1 Watsco COM 942622200 173,891 939 0.54 44,770 8.39 1.9748
2022-07-20 2022-06-30 13F Watsco COM 942622200 172,952 -737 -0.42 41,304 -21.94 1.7446
2022-05-04 2022-03-31 13F Watsco COM 942622200 173,689 2,768 1.62 52,913 -1.06 2.0066
2022-01-28 2021-12-31 13F Watsco COM 942622200 170,921 -920 -0.54 53,478 17.60 1.9388
2021-10-27 2021-09-30 13F Watsco COM 942622200 171,841 352 0.21 45,473 -7.49 1.8470
2021-07-26 2021-06-30 13F Watsco COM 942622200 171,489 -24,164 -12.35 49,156 -3.65 1.9766
2021-04-29 2021-03-31 13F Watsco COM 942622200 195,653 3,721 1.94 51,017 17.33 2.1739
2021-01-27 2020-12-31 13F Watsco COM 942622200 191,932 1,830 0.96 43,482 -1.79 1.9794
2020-10-20 2020-09-30 13F Watsco COM 942622200 190,102 -10,297 -5.14 44,273 24.32 2.2043
2020-07-30 2020-06-30 13F Watsco COM 942622200 200,399 -6,882 -3.32 35,611 8.71 1.9243
2020-05-11 2020-03-31 13F Watsco COM 942622200 207,281 4,884 2.41 32,757 -10.16 2.0317
2020-01-28 2019-12-31 13F Watsco COM 942622200 202,397 19,890 10.90 36,462 18.09 1.8571
2019-10-29 2019-09-30 13F Watsco COM 942622200 182,507 14,478 8.62 30,876 12.37 1.7853
2019-07-29 2019-06-30 13F Watsco COM 942622200 168,029 38,251 29.47 27,478 47.85 1.6778
2019-05-01 2019-03-31 13F Watsco COM 942622200 129,778 30,389 30.58 18,585 34.39 1.2403
2019-02-04 2018-12-31 13F Watsco COM 942622200 99,389 -3,609 -3.50 13,829 -24.61 1.0684
2018-10-24 2018-09-30 13F Watsco COM 942622200 102,998 1,478 1.46 18,344 1.35 1.2850
2018-08-14 2018-06-30 13F Watsco COM 942622200 101,520 97,827 2,648.98 18,099 2,609.43 1.4145
2018-05-01 2018-03-31 13F Watsco COM 942622200 3,693 198 5.67 668 12.46 0.0515
2018-02-02 2017-12-31 13F Watsco COM 942622200 3,495 190 5.75 594 11.65 0.0428
2017-11-13 2017-09-30 13F Watsco COM 942622200 3,305 255 8.36 532 13.19 0.0391
2017-08-09 2017-06-30 13F Watsco COM 942622200 3,050 0 0.00 470 7.55 0.0347
2017-05-15 2017-03-31 13F Watsco COM 942622200 3,050 0 0.00 437 -3.32 0.0340
2017-01-26 2016-12-31 13F Watsco COM 942622200 3,050 0 0.00 452 5.12 0.0378
2016-10-24 2016-09-30 13F Watsco COM 942622200 3,050 0 0.00 430 0.23 0.0363
2016-07-18 2016-06-30 13F Watsco COM 942622200 3,050 50 1.67 429 6.19 0.0372
2016-04-19 2016-03-31 13F Watsco COM 942622200 3,000 -50 -1.64 404 13.17 0.0376
2016-01-21 2015-12-31 13F Watsco COM 942622200 3,050 0 0.00 357 -1.11 0.0332
2015-10-19 2015-09-30 13F Watsco COM 942622200 3,050 0 0.00 361 -4.24 0.0362
2015-08-13 2015-06-30 13F Watsco COM 942622200 3,050 -500 -14.08 377 -15.47 0.0363
2015-04-21 2015-03-31 13F Watsco COM 942622200 3,550 3,550 0.00 446 0.0390
2015-01-28 2014-12-31 13F Watsco COM 942622200 0 -3,650 -100.00 0 -100.00
2014-10-29 2014-09-30 13F Watsco COM 942622200 3,650 0 0.00 315 -16.00 0.0305
2014-07-23 2014-06-30 13F Watsco COM 942622200 3,650 0 0.00 375 2.74 0.0368
2014-05-05 2014-03-31 13F Watsco COM 942622200 3,650 0 0.00 365 3.99 0.0398
2014-02-14 2013-12-31 13F Watsco COM 942622200 3,650 0 0.00 351 2.03 0.0409
2013-10-24 2013-09-30 13F Watsco COM 942622200 3,650 -200 -5.19 344 6.50 0.0452
2013-07-22 2013-06-30 13F Watsco COM 942622200 3,850 3,850 323 0.0459
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.