Watsco, Inc.
MX ˙ BMV ˙ US9426222009
SecurityMX:WSO / Watsco, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership63,225 shares
Latest Disclosed Value $ 23,001
Natixis Advisors, L.p. reports 10.97% increase in ownership of WSO / Watsco, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 63,225 shares of Watsco, Inc. (MX:WSO) valued at $23,001 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 56,976 shares of Watsco, Inc.. This represents a change in shares of 10.97% 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)
2026-05-13 2026-03-31 13F WATSCO COM 942622200 63,225 6,249 10.97 23 21.05 0.0320
2026-02-10 2025-12-31 13F WATSCO COM 942622200 56,976 -5,708 -9.11 19 -24.00 0.0272
2025-11-13 2025-09-30 13F WATSCO COM 942622200 62,684 -17,808 -22.12 25 -28.57 0.0370
2025-08-13 2025-06-30 13F WATSCO COM 942622200 80,492 -6,418 -7.38 36 -20.45 0.0564
2025-05-08 2025-03-31 13F WATSCO COM 942622200 86,910 -2,022 -2.27 44 4.76 0.0816
2025-02-10 2024-12-31 13F WATSCO COM 942622200 88,932 80 0.09 42 -2.33 0.0787
2024-11-06 2024-09-30 13F WATSCO COM 942622200 88,852 -3,863 -4.17 44 2.38 0.0852
2024-08-01 2024-06-30 13F WATSCO COM 942622200 92,715 -26,940 -22.51 43 -17.65 0.0934
2024-04-25 2024-03-31 13F WATSCO COM 942622200 119,655 404 0.34 52 0.00 0.1188
2024-02-06 2023-12-31 13F WATSCO COM 942622200 119,251 -2,628 -2.16 51 10.87 0.1345
2023-11-13 2023-09-30 13F WATSCO COM 942622200 121,879 -10,852 -8.18 46 -8.00 0.1408
2023-08-15 2023-06-30 13F WATSCO COM 942622200 132,731 -5,187 -3.76 51 16.28 0.1563
2023-05-11 2023-03-31 13F WATSCO COM 942622200 137,918 895 0.65 44 26.47 0.1510
2023-01-27 2022-12-31 13F WATSCO COM 942622200 137,023 6,696 5.14 34 -99.90 0.1292
2022-11-14 2022-09-30 13F WATSCO COM 942622200 130,327 670 0.52 33,554 8.36 0.1419
2022-08-12 2022-06-30 13F WATSCO COM 942622200 129,657 3,081 2.43 30,965 -19.70 0.1362
2022-05-12 2022-03-31 13F WATSCO COM 942622200 126,576 6,590 5.49 38,560 2.71 0.1470
2022-02-08 2021-12-31 13F WATSCO COM 942622200 119,986 7,200 6.38 37,541 25.79 0.1434
2021-11-15 2021-09-30 13F WATSCO COM 942622200 112,786 15,712 16.19 29,845 7.26 0.1227
2021-08-12 2021-06-30 13F WATSCO COM 942622200 97,074 4,462 4.82 27,825 15.23 0.1299
2021-05-05 2021-03-31 13F WATSCO COM 942622200 92,612 592 0.64 24,148 15.83 0.1260
2021-02-12 2020-12-31 13F WATSCO COM 942622200 92,020 -8,057 -8.05 20,847 -10.55 0.1201
2020-11-12 2020-09-30 13F WATSCO COM 942622200 100,077 -11,889 -10.62 23,307 17.14 0.1467
2020-08-11 2020-06-30 13F WATSCO COM 942622200 111,966 13,193 13.36 19,896 27.46 0.1320
2020-04-27 2020-03-31 13F WATSCO COM 942622200 98,773 16,307 19.77 15,609 5.07 0.1272
2020-02-10 2019-12-31 13F WATSCO COM 942622200 82,466 6,455 8.49 14,856 15.52 0.1048
2019-11-12 2019-09-30 13F WATSCO COM 942622200 76,011 8,255 12.18 12,860 16.06 0.1021
2019-08-12 2019-06-30 13F WATSCO INC COM COM 942622200 67,756 7,478 12.41 11,080 28.36 0.0905
2019-05-15 2019-03-31 13F/A-1 WATSCO INC COM COM 942622200 60,278 7,209 13.58 8,632 16.90 0.0756
2019-05-15 2019-03-31 13F WATSCO INC COM COM 942622200 60,278 7,209 8,632
2019-02-13 2018-12-31 13F/A-1 WATSCO COM 942622200 53,069 9,585 22.04 7,384 -4.65 0.0729
2019-02-13 2018-12-31 13F WATSCO COM 942622200 53,069 9,585 7,384
2018-11-13 2018-09-30 13F WATSCO COM 942622200 43,484 656 1.53 7,744 1.43 0.0682
2018-08-14 2018-06-30 13F/A-1 WATSCO COM 942622200 42,828 1,468 3.55 7,635 2.00 0.0729
2018-08-14 2018-06-30 13F WATSCO COM 942622200 42,828 7,635
2018-05-10 2018-03-31 13F WATSCO COM 942622200 41,360 2,662 6.88 7,485 13.75 0.0739
2018-02-14 2017-12-31 13F WATSCO COM 942622200 38,698 1,767 4.78 6,580 10.63 0.0670
2017-11-14 2017-09-30 13F WATSCO COM 942622200 36,931 1,292 3.63 5,948 8.22 0.0628
2017-07-27 2017-06-30 13F WATSCO COM 942622200 35,639 20,322 132.68 5,496 150.62 0.0595
2017-05-12 2017-03-31 13F WATSCO COM 942622200 15,317 9,605 168.15 2,193 307.62 0.0243
2013-10-30 2013-09-30 13F WATSCO COM 942622200 5,712 -219 -3.69 538 8.03 0.0099
2013-07-19 2013-06-30 13F WATSCO COM 942622200 5,931 5,931 498 0.0099
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.