Comfort Systems USA, Inc.
US ˙ NYSE ˙ US1999081045

SecurityFIX / Comfort Systems USA, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership35,299 shares
Latest Disclosed Value $ 48,677,225
Cwm, Llc reports 16.42% increase in ownership of FIX / Comfort Systems USA, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 35,299 shares of Comfort Systems USA, Inc. (US:FIX) valued at $48,676,968 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 30,320 shares of Comfort Systems USA, Inc.. This represents a change in shares of 16.42% during the quarter. The current value of the position is $65,304,562 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)
2026-05-14 2026-03-31 13F COMFORT SYS USA COM 199908104 35,299 4,979 16.42 48,677 173,746.43 0.1266
2026-01-26 2025-12-31 13F COMFORT SYS USA COM 199908104 30,320 4,789 18.76 28 33.33 0.0767
2025-10-15 2025-09-30 13F COMFORT SYS USA COM 199908104 25,531 8,605 50.84 21 133.33 0.0634
2025-07-25 2025-06-30 13F COMFORT SYS USA COM 199908104 16,926 8,655 104.64 9 350.00 0.0320
2025-05-01 2025-03-31 13F COMFORT SYS USA COM 199908104 8,271 3,238 64.34 3 0.00 0.0106
2025-02-04 2024-12-31 13F COMFORT SYS USA COM 199908104 5,033 1,564 45.09 2 100.00 0.0089
2024-10-08 2024-09-30 13F COMFORT SYS USA COM 199908104 3,469 3,251 1,491.28 1 0.0058
2024-07-10 2024-06-30 13F COMFORT SYS USA COM 199908104 218 82 60.29 0 0.0003
2024-04-05 2024-03-31 13F COMFORT SYS USA COM 199908104 136 19 16.24 0 0.0002
2024-02-01 2023-12-31 13F COMFORT SYS USA COM 199908104 117 -73 -38.42 0 0.0001
2023-10-11 2023-09-30 13F COMFORT SYS USA COM 199908104 190 -4 -2.06 0 0.0002
2023-08-03 2023-06-30 13F COMFORT SYS USA COM 199908104 194 37 23.57 0 0.0002
2023-05-01 2023-03-31 13F COMFORT SYS USA COM 199908104 157 -31 -16.49 0 0.0002
2023-02-01 2022-12-31 13F COMFORT SYS USA COM 199908104 188 22 13.25 0 -100.00 0.0002
2022-10-27 2022-09-30 13F COMFORT SYS USA COM 199908104 166 148 822.22 16 1,500.00 0.0001
2022-07-28 2022-06-30 13F COMFORT SYS USA COM 199908104 18 -92 -83.64 1 -90.00 0.0000
2022-04-21 2022-03-31 13F COMFORT SYS USA COM 199908104 110 110 10 0.0001
2021-01-27 2020-12-31 13F COMFORT SYS USA COM 199908104 0 -40 -100.00 0 -100.00
2020-10-19 2020-09-30 13F COMFORT SYS USA COM 199908104 40 40 2 0.0000
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.