Comfort Systems USA, Inc.
US ˙ NYSE ˙ US1999081045

SecurityFIX / Comfort Systems USA, Inc.
InstitutionAlps Advisors Inc
Latest Disclosed Ownership1,351 shares
Latest Disclosed Value $ 1,863,015
Alps Advisors Inc reports 21.50% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 8, 2026 - Alps Advisors Inc filed a 13F-HR form disclosing ownership of 1,351 shares of Comfort Systems USA, Inc. (US:FIX) valued at $1,863,015 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,721 shares of Comfort Systems USA, Inc.. This represents a change in shares of -21.50% during the quarter. The current value of the position is $2,499,404 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)
2026-05-08 2026-03-31 13F COMFORT SYS USA COM 199908104 1,351 -370 -21.50 1,863 16.00 0.0080
2026-02-12 2025-12-31 13F COMFORT SYS USA COM 199908104 1,721 -27 -1.54 1,606 11.37 0.0094
2025-11-05 2025-09-30 13F COMFORT SYS USA COM 199908104 1,748 -184 -9.52 1,442 39.32 0.0080
2025-08-11 2025-06-30 13F COMFORT SYS USA COM 199908104 1,932 893 85.95 1,036 209.88 0.0060
2025-04-30 2025-03-31 13F COMFORT SYS USA COM 199908104 1,039 9 0.87 335 -23.39 0.0019
2025-02-13 2024-12-31 13F COMFORT SYS USA COM 199908104 1,030 0 0.00 437 8.46 0.0028
2024-11-12 2024-09-30 13F COMFORT SYS USA COM 199908104 1,030 -133 -11.44 402 13.88 0.0027
2024-08-13 2024-06-30 13F COMFORT SYS USA COM 199908104 1,163 -4 -0.34 354 -4.59 0.0024
2024-05-14 2024-03-31 13F COMFORT SYS USA COM 199908104 1,167 -527 -31.11 371 6.32 0.0026
2024-02-14 2023-12-31 13F COMFORT SYS USA COM 199908104 1,694 -96 -5.36 348 14.10 0.0027
2023-11-14 2023-09-30 13F COMFORT SYS USA COM 199908104 1,790 -464 -20.59 305 -17.57 0.0025
2023-08-14 2023-06-30 13F COMFORT SYS USA COM 199908104 2,254 20 0.90 370 13.50 0.0032
2023-05-10 2023-03-31 13F COMFORT SYS USA COM 199908104 2,234 -863 -27.87 326 -8.43 0.0029
2023-02-14 2022-12-31 13F COMFORT SYS USA COM 199908104 3,097 -20 -0.64 356 17.49 0.0032
2022-11-14 2022-09-30 13F COMFORT SYS USA COM 199908104 3,117 3,117 303 0.0029
2021-11-15 2021-09-30 13F COMFORT SYS USA COM 199908104 0 -4,660 -100.00 0 -100.00
2021-08-11 2021-06-30 13F COMFORT SYS USA COM 199908104 4,660 0 0.00 367 5.46 0.0032
2021-05-07 2021-03-31 13F COMFORT SYS USA COM 199908104 4,660 -424 -8.34 348 29.85 0.0034
2021-02-03 2020-12-31 13F COMFORT SYS USA COM 199908104 5,084 -104 -2.00 268 0.37 0.0030
2020-11-05 2020-09-30 13F/A-1 COMFORT SYS USA COM 199908104 5,188 -427 -7.60 267 16.59 0.0039
2020-11-04 2020-09-30 13F COMFORT SYS USA COM 199908104 5,188 -427 267 3,421.9249
2020-08-05 2020-06-30 13F COMFORT SYS USA COM 199908104 5,615 -624 -10.00 229 0.44 0.0031
2020-05-06 2020-03-31 13F COMFORT SYS USA COM 199908104 6,239 6,239 228 0.0035
2019-11-04 2019-09-30 13F COMFORT SYSTEMS COMMON STOCK 199908104 0 -7,279 -100.00 0 -100.00
2019-08-07 2019-06-30 13F COMFORT SYSTEMS COMMON STOCK 199908104 7,279 -384 -5.01 371 -7.48 0.0027
2019-05-01 2019-03-31 13F COMFORT SYSTEMS COMMON STOCK 199908104 7,663 -742 -8.83 401 9.26 0.0028
2019-02-04 2018-12-31 13F COMFORT SYSTEMS COMMON STOCK 199908104 8,405 -345 -3.94 367 -25.71 0.0028
2018-10-25 2018-09-30 13F COMFORT SYSTEMS COMMON STOCK 199908104 8,750 8,750 494 0.0032
2017-11-03 2017-09-30 13F Comfort Systems USA COMMON STOCK 199908104 0 -13,375 -100.00 0 -100.00
2017-08-03 2017-06-30 13F Comfort Systems USA COMMON STOCK 199908104 13,375 34 0.25 496 1.43 0.0035
2017-05-12 2017-03-31 13F Comfort Systems USA COMMON STOCK 199908104 13,341 -2,552 -16.06 489 -7.56 0.0034
2017-01-24 2016-12-31 13F Comfort Systems USA Common Stock 199908104 15,893 151 0.96 529 14.75 0.0039
2016-11-02 2016-09-30 13F Comfort Systems USA Common Stock 199908104 15,742 1,957 14.20 461 2.67 0.0038
2016-07-27 2016-06-30 13F Comfort Systems USA Common Stock 199908104 13,785 -1,016 -6.86 449 -4.47 0.0040
2016-05-10 2016-03-31 13F Comfort Systems USA Common Stock 199908104 14,801 14,801 470 0.0049
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.