Watsco, Inc.
US ˙ NYSE ˙ US9426222009 ˙ Waste Management

SecurityWSO / Watsco, Inc.
InstitutionOppenheimer Asset Management Inc.
Latest Disclosed Ownership15,750 shares
Latest Disclosed Value $ 6,563,498
Oppenheimer Asset Management Inc. reports 6.61% decrease in ownership of WSO / Watsco, Inc.

On August 3, 2026 - Oppenheimer Asset Management Inc. filed a 13F-HR form disclosing ownership of 15,750 shares of Watsco, Inc. (US:WSO) valued at $6,563,498 USD as of June 30, 2026. The current value of the position is $4,967,235 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)
2026-08-03 2026-06-30 13F WATSCO COM 942622200 15,750 -1,115 -6.61 6,563 6.98 0.0166
2026-04-23 2026-03-31 13F WATSCO COM 942622200 16,865 7,212 74.71 6,135 88.65 0.0700
2026-02-02 2025-12-31 13F WATSCO COM 942622200 9,653 -10,179 -51.33 3,253 -59.44 0.0400
2025-11-06 2025-09-30 13F WATSCO COM 942622200 19,832 -2,017 -9.23 8,018 -16.89 0.0882
2025-07-31 2025-06-30 13F WATSCO COM 942622200 21,849 -531 -2.37 9,649 -15.18 0.1107
2025-04-23 2025-03-31 13F WATSCO COM 942622200 22,380 1,606 7.73 11,376 15.55 0.1412
2025-02-05 2024-12-31 13F WATSCO COM 942622200 20,774 79 0.38 9,845 -3.29 0.1197
2024-11-05 2024-09-30 13F WATSCO COM 942622200 20,695 -111 -0.53 10,179 5.61 0.1225
2024-08-08 2024-06-30 13F WATSCO COM 942622200 20,806 1,653 8.63 9,638 16.50 0.1231
2024-05-07 2024-03-31 13F WATSCO COM 942622200 19,153 -2,756 -12.58 8,274 -11.87 0.1212
2024-02-13 2023-12-31 13F WATSCO COM 942622200 21,909 -1,209 -5.23 9,387 7.50 0.1306
2023-11-08 2023-09-30 13F WATSCO COM 942622200 23,118 -311 -1.33 8,732 -2.29 0.1340
2023-08-03 2023-06-30 13F WATSCO COM 942622200 23,429 -334 -1.41 8,937 18.21 0.1315
2023-05-10 2023-03-31 13F WATSCO COM 942622200 23,763 451 1.93 7,560 30.03 0.1164
2023-02-07 2022-12-31 13F WATSCO COM 942622200 23,312 262 1.14 5,814 -2.01 0.0936
2022-11-14 2022-09-30 13F WATSCO COM 942622200 23,050 1,166 5.33 5,933 13.53 0.1047
2022-08-08 2022-06-30 13F WATSCO COM 942622200 21,884 87 0.40 5,226 -21.30 0.0876
2022-05-12 2022-03-31 13F WATSCO COM 942622200 21,797 2,412 12.44 6,640 9.46 0.0942
2022-02-02 2021-12-31 13F WATSCO COM 942622200 19,385 248 1.30 6,066 19.79 0.0804
2021-11-12 2021-09-30 13F WATSCO COM 942622200 19,137 2,998 18.58 5,064 9.47 0.0720
2021-08-03 2021-06-30 13F WATSCO COM 942622200 16,139 -208 -1.27 4,626 8.54 0.0659
2021-05-17 2021-03-31 13F WATSCO COM 942622200 16,347 1,292 8.58 4,262 24.95 0.0661
2021-02-11 2020-12-31 13F WATSCO COM 942622200 15,055 771 5.40 3,411 2.59 0.0570
2020-11-13 2020-09-30 13F WATSCO COM 942622200 14,284 -1,161 -7.52 3,325 21.13 0.0646
2020-08-11 2020-06-30 13F WATSCO COM 942622200 15,445 -688 -4.26 2,745 7.65 0.0566
2020-05-08 2020-03-31 13F WATSCO COM 942622200 16,133 646 4.17 2,550 -8.57 0.0626
2020-02-07 2019-12-31 13F WATSCO COM 942622200 15,487 940 6.46 2,789 13.37 0.0589
2019-10-31 2019-09-30 13F WATSCO COM 942622200 14,547 137 0.95 2,460 4.41 0.0546
2019-08-09 2019-06-30 13F WATSCO COM 942622200 14,410 -211 -1.44 2,356 12.51 0.0521
2019-04-24 2019-03-31 13F WATSCO COM 942622200 14,621 5,420 58.91 2,094 63.59 0.0470
2019-01-30 2018-12-31 13F WATSCO COM 942622200 9,201 -412 -4.29 1,280 -25.23 0.0317
2018-10-26 2018-09-30 13F WATSCO COM 942622200 9,613 697 7.82 1,712 7.74 0.0379
2018-08-10 2018-06-30 13F WATSCO COM 942622200 8,916 3,846 75.86 1,589 73.28 0.0389
2018-05-09 2018-03-31 13F WATSCO COM 942622200 5,070 487 10.63 917 24.25 0.0230
2018-02-07 2017-12-31 13F WATSCO COM 942622200 4,583 0 0.00 738 0.00 0.0196
2017-11-14 2017-09-30 13F WATSCO COM 942622200 4,583 4,539 10,315.91 738 10,442.86 0.0192
2017-08-09 2017-06-30 13F WATSCO COM 942622200 44 0 0.00 7 16.67 0.0002
2017-05-15 2017-03-31 13F WATSCO COM 942622200 44 44 6 0.0002
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.