Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionCowa, Llc
Latest Disclosed Ownership12,014 shares
Latest Disclosed Value $ 16,567,186
Cowa, Llc reports 12.36% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 14, 2026 - Cowa, Llc filed a 13F-HR form disclosing ownership of 12,014 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $16,567,186 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 13,709 shares of Comfort Systems USA, Inc.. This represents a change in shares of -12.36% 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)
2026-05-14 2026-03-31 13F COMFORT SYS USA COM 199908104 12,014 -1,695 -12.36 16,567 29.49 4.4703
2026-02-12 2025-12-31 13F COMFORT SYS USA COM 199908104 13,709 -245 -1.76 12,794 11.12 3.8921
2025-11-10 2025-09-30 13F COMFORT SYS USA COM 199908104 13,954 2,027 17.00 11,515 80.05 3.8218
2025-08-12 2025-06-30 13F COMFORT SYS USA COM 199908104 11,927 1,525 14.66 6,395 90.78 2.4356
2025-05-13 2025-03-31 13F COMFORT SYS USA COM 199908104 10,402 5,074 95.23 3,353 48.38 1.4325
2025-02-03 2024-12-31 13F COMFORT SYS USA COM 199908104 5,328 -1,048 -16.44 2,259 -9.20 1.0414
2024-11-01 2024-09-30 13F COMFORT SYS USA COM 199908104 6,376 -1,089 -14.59 2,489 9.60 1.1850
2024-08-12 2024-06-30 13F COMFORT SYS USA COM 199908104 7,465 3,801 103.74 2,270 95.02 1.2112
2024-05-07 2024-03-31 13F COMFORT SYS USA COM 199908104 3,664 3,664 1,164 0.6862
2023-01-27 2022-12-31 13F COMFORT SYSTEMS USA COM 199908104 0 -1 -100.00 0 0.0000
2022-11-04 2022-09-30 13F COMFORT SYSTEMS USA COM 199908104 1 1 0 0.0000
2021-08-02 2021-06-30 13F COMFORT SYSTEMS USA COM 199908104 0 -268 -100.00 0 -100.00
2021-05-05 2021-03-31 13F COMFORT SYSTEMS USA COM 199908104 268 192 252.63 21 425.00 0.0126
2021-02-05 2020-12-31 13F COMFORT SYSTEMS USA COM 199908104 76 76 4 0.0030
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.