Comfort Systems USA, Inc.
US ˙ NYSE ˙ US1999081045

SecurityFIX / Comfort Systems USA, Inc.
InstitutionCim, Llc
Latest Disclosed Ownership5,116 shares
Latest Disclosed Value $ 7,055,207
Cim, Llc reports 35.84% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 18, 2026 - Cim, Llc filed a 13F-HR form disclosing ownership of 5,116 shares of Comfort Systems USA, Inc. (US:FIX) valued at $7,054,913 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 7,974 shares of Comfort Systems USA, Inc.. This represents a change in shares of -35.84% during the quarter. The current value of the position is $9,464,805 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)
2026-05-18 2026-03-31 13F COMFORT SYS USA COM 199908104 5,116 -2,858 -35.84 7,055 -5.20 1.0199
2026-02-18 2025-12-31 13F COMFORT SYS USA COM 199908104 7,974 -396 -4.73 7,442 7.76 0.9758
2025-11-14 2025-09-30 13F COMFORT SYS USA COM 199908104 8,370 11 0.13 6,907 54.08 0.9033
2025-08-19 2025-06-30 13F COMFORT SYS USA COM 199908104 8,359 3,203 62.12 4,482 169.84 0.6034
2025-06-05 2025-03-31 13F COMFORT SYS USA COM 199908104 5,156 -93 -1.77 1,662 -25.35 0.2469
2025-03-03 2024-12-31 13F COMFORT SYS USA COM 199908104 5,249 -113 -2.11 2,226 6.31 0.3170
2025-01-16 2024-09-30 13F COMFORT SYS USA COM 199908104 5,362 -72 -1.32 2,093 25.40 0.3015
2024-09-06 2024-06-30 13F COMFORT SYS USA COM 199908104 5,434 2,945 118.32 1,670 111.27 0.2510
2024-09-06 2024-06-30 13F COMFORT SYS USA COM 199908104 5,434 2,945 1,670 0.2510
2024-05-20 2024-03-31 13F COMFORT SYS USA COM 199908104 2,489 -65 -2.55 791 24.80 0.1197
2024-02-23 2023-12-31 13F COMFORT SYS USA COM 199908104 2,554 115 4.72 633 52.53 0.0986
2024-05-17 2023-09-30 13F COMFORT SYS USA COM 199908104 2,439 -496 -16.90 416 -13.72 0.0792
2024-05-17 2023-06-30 13F COMFORT SYS USA COM 199908104 2,935 -502 -14.61 482 -3.99 0.0900
2024-05-17 2023-03-31 13F COMFORT SYS USA COM 199908104 3,437 -120 -3.37 502 18.72 0.0994
2023-02-10 2022-12-31 13F COMFORT SYS USA COM 199908104 3,557 -324 -8.35 423 -10.21 0.0838
2022-11-02 2022-09-30 13F COMFORT SYS USA COM 199908104 3,881 -888 -18.62 470 14.63 0.0991
2022-07-11 2022-06-30 13F COMFORT SYS USA COM 199908104 4,769 -70 -1.45 410 -2.38 0.0851
2022-04-12 2022-03-31 13F COMFORT SYS USA COM 199908104 4,839 -197 -3.91 420 -5.41 0.0782
2022-01-26 2021-12-31 13F COMFORT SYS USA COM 199908104 5,036 381 8.18 444 -3.69 0.0829
2021-11-08 2021-09-30 13F COMFORT SYS USA COM 199908104 4,655 286 6.55 461 38.44 0.0717
2021-08-09 2021-06-30 13F COMFORT SYS USA COM 199908104 4,369 312 7.69 333 -4.86 0.0542
2021-05-11 2021-03-31 13F COMFORT SYS USA COM 199908104 4,057 34 0.85 350 49.57 0.0627
2021-02-08 2020-12-31 13F COMFORT SYS USA COM 199908104 4,023 4,023 234 0.0432
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.