Watsco, Inc.
US ˙ NYSE ˙ US9426222009

SecurityWSO / Watsco, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership6,001 shares
Latest Disclosed Value $ 2,185,043
Advisor Group Holdings, Inc. reports 7.99% decrease in ownership of WSO / Watsco, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 6,001 shares of Watsco, Inc. (US:WSO) valued at $2,183,104 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,522 shares of Watsco, Inc.. This represents a change in shares of -7.99% during the quarter. The current value of the position is $2,228,651 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)
2026-05-15 2026-03-31 13F WATSCO COM 942622200 6,001 -521 -7.99 2,185 -0.68 0.0019
2026-02-17 2025-12-31 13F WATSCO COM 942622200 6,522 -2,938 -31.06 2,200 -42.33 0.0032
2025-11-14 2025-09-30 13F WATSCO COM 942622200 9,460 -658 -6.50 3,816 -18.12 0.0053
2025-09-04 2025-06-30 13F/A-1 ATSCO COM 942622200 10,118 2,931 40.78 4,659 27.40 0.0083
2025-08-13 2025-06-30 13F ATSCO COM 942622200 8,944 1,757 4,282 0.0050
2025-05-12 2025-03-31 13F WATSCO COM 942622200 7,187 507 7.59 3,658 15.47 0.0082
2025-06-06 2024-12-31 13F/A-1 WATSCO COM 942622200 6,680 -347 -4.94 3,168 -8.42 0.0071
2025-02-07 2024-12-31 13F WATSCO COM 942622200 6,210 -817 3,017 0.0077
2024-11-13 2024-09-30 13F WATSCO COM 942622200 7,027 -178 -2.47 3,459 3.53 0.0078
2024-08-13 2024-06-30 13F WATSCO COM 942622200 7,205 308 4.47 3,340 12.08 0.0079
2024-05-10 2024-03-31 13F WATSCO COM 942622200 6,897 -12,050 -63.60 2,980 -63.34 0.0067
2024-02-12 2023-12-31 13F WATSCO COM 942622200 18,947 -5,345 -22.00 8,129 -11.49 0.0142
2023-11-13 2023-09-30 13F WATSCO COM 942622200 24,292 5,165 27.00 9,184 25.74 0.0136
2023-08-21 2023-06-30 13F/A-1 WATSCO COM 942622200 19,127 -3,243 -14.50 7,304 2.53 0.0131
2023-08-10 2023-06-30 13F WATSCO COM 942622200 26,356 3,986 7,297 0.0020
2023-05-12 2023-03-31 13F WATSCO COM 942622200 22,370 2,157 10.67 7,124 41.18 0.0134
2023-02-10 2022-12-31 13F WATSCO COM 942622200 20,213 839 4.33 5,046 1.06 0.0102
2022-11-14 2022-09-30 13F WATSCO COM 942622200 19,374 6,332 48.55 4,993 60.24 0.0114
2022-08-10 2022-06-30 13F WATSCO COM 942622200 13,042 7,788 148.23 3,116 87.03 0.0069
2022-05-04 2022-03-31 13F WATSCO COM 942622200 5,254 332 6.75 1,666 8.11 0.0032
2022-02-03 2021-12-31 13F WATSCO COM 942622200 4,922 268 5.76 1,541 25.08 0.0029
2021-11-05 2021-09-30 13F WATSCO COM 942622200 4,654 483 11.58 1,232 3.01 0.0026
2021-08-02 2021-06-30 13F WATSCO COM 942622200 4,171 405 10.75 1,196 21.67 0.0026
2021-05-13 2021-03-31 13F WATSCO COM 942622200 3,766 539 16.70 983 34.11 0.0024
2021-02-10 2020-12-31 13F WATSCO COM 942622200 3,227 528 19.56 733 16.72 0.0020
2020-11-12 2020-09-30 13F WATSCO COM 942622200 2,699 89 3.41 628 35.34 0.0019
2020-08-14 2020-06-30 13F WATSCO COM 942622200 2,610 -88 -3.26 464 8.67 0.0016
2020-05-18 2020-03-31 13F WATSCO COM 942622200 2,698 2,698 427 0.0017
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.