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

SecurityWSO / Watsco, Inc.
InstitutionCompass Ion Advisors, LLC
Latest Disclosed Ownership1,045 shares
Latest Disclosed Value $ 435,351
Compass Ion Advisors, LLC reports 0.48% increase in ownership of WSO / Watsco, Inc.

On August 12, 2026 - Compass Ion Advisors, LLC filed a 13F-HR form disclosing ownership of 1,045 shares of Watsco, Inc. (US:WSO) valued at $435,483 USD as of June 30, 2026. The entity filed a previous 13F-HR on April 13, 2026 disclosing 1,040 shares of Watsco, Inc.. This represents a change in shares of 0.48% during the quarter. The current value of the position is $329,572 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)
2026-08-12 2026-06-30 13F WATSCO COM 942622200 1,045 5 0.48 435 15.08 0.0375
2026-04-13 2026-03-31 13F WATSCO COM 942622200 1,040 147 16.46 378 26.00 0.0361
2026-01-29 2025-12-31 13F WATSCO COM 942622200 893 5 0.56 301 -16.43 0.0286
2025-10-29 2025-09-30 13F WATSCO COM 942622200 888 -17 -1.88 359 -10.03 0.0346
2025-07-11 2025-06-30 13F WATSCO COM 942622200 905 4 0.44 400 -12.88 0.0433
2025-04-22 2025-03-31 13F WATSCO COM 942622200 901 3 0.33 458 7.76 0.0540
2025-02-11 2024-12-31 13F WATSCO COM 942622200 898 -37 -3.96 426 -7.41 0.0505
2024-10-18 2024-09-30 13F WATSCO COM 942622200 935 67 7.72 460 22.73 0.0563
2024-07-12 2024-06-30 13F WATSCO COM 942622200 868 0 0.00 375 0.00 0.0535
2024-04-18 2024-03-31 13F WATSCO COM 942622200 868 -267 -23.52 375 -23.05 0.0539
2024-01-24 2023-12-31 13F WATSCO COM 942622200 1,135 -1,085 -48.87 486 -42.00 0.0755
2023-11-03 2023-09-30 13F WATSCO COM 942622200 2,220 640 40.51 838 39.20 0.1438
2023-08-11 2023-06-30 13F WATSCO COM 942622200 1,580 -486 -23.52 603 -8.37 0.1531
2023-04-18 2023-03-31 13F WATSCO COM 942622200 2,066 417 25.29 657 59.85 0.1659
2023-01-18 2022-12-31 13F WATSCO COM 942622200 1,649 13 0.79 411 -2.38 0.1057
2022-10-18 2022-09-30 13F WATSCO COM 942622200 1,636 13 0.80 421 8.79 0.1167
2022-08-02 2022-06-30 13F WATSCO COM 942622200 1,623 13 0.81 387 -21.02 0.1121
2022-04-20 2022-03-31 13F WATSCO COM 942622200 1,610 11 0.69 490 -2.00 0.1517
2022-02-02 2021-12-31 13F/A-1 WATSCO COM 942622200 1,599 11 0.69 500 19.05 0.1608
2022-01-28 2021-12-31 13F WATSCO COM 942622200 1,588 0 420 0.1509
2021-10-28 2021-09-30 13F WATSCO COM 942622200 1,588 11 0.70 420 -7.08 0.1509
2021-07-15 2021-06-30 13F WATSCO COM 942622200 1,577 -1,182 -42.84 452 -37.13 0.1756
2021-04-19 2021-03-31 13F WATSCO COM 942622200 2,759 20 0.73 719 15.78 0.2959
2021-02-11 2020-12-31 13F WATSCO COM 942622200 2,739 0 0.00 621 -2.66 0.2401
2020-11-13 2020-09-30 13F/A-1 WATSCO COM 942622200 2,739 -1,249 -31.32 638 -10.01 0.4052
2020-10-27 2020-09-30 13F WATSCO COM 942622200 3,988 0 709 632,527.4333
2020-07-09 2020-06-30 13F WATSCO COM 942622200 3,988 0 0.00 709 12.54 0.6325
2020-04-09 2020-03-31 13F WATSCO COM 942622200 3,988 0 0.00 630 -12.26 0.5679
2020-01-17 2019-12-31 13F WATSCO COM 942622200 3,988 3,988 718 0.3705
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.