Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionStrs Ohio
Latest Disclosed Ownership2,932 shares
Latest Disclosed Value $ 4,043,199
Strs Ohio reports 0.03% decrease in ownership of FIX / Comfort Systems USA, Inc.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 2,932 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $4,043,199 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 2,933 shares of Comfort Systems USA, Inc.. This represents a change in shares of -0.03% 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)
2026-04-24 2026-03-31 13F COMFORT SYSTEMS USA COM_STK 199908104 2,932 -1 -0.03 4,043 47.72 0.0160
2026-02-02 2025-12-31 13F COMFORT SYSTEMS USA COM_STK 199908104 2,933 2,101 252.52 2,737 298.98 0.0102
2025-10-30 2025-09-30 13F COMFORT SYSTEMS USA COM_STK 199908104 832 -1,770 -68.02 687 -50.82 0.0025
2025-08-04 2025-06-30 13F COMFORT SYSTEMS USA COM_STK 199908104 2,602 66 2.60 1,395 70.75 0.0052
2025-05-28 2025-03-31 13F COMFORT SYSTEMS USA COM_STK 199908104 2,536 -239 -8.61 817 -30.53 0.0034
2025-05-28 2024-12-31 13F COMFORT SYSTEMS USA COM_STK 199908104 2,775 -532 -16.09 1,177 -8.84 0.0047
2024-11-01 2024-09-30 13F COMFORT SYSTEMS USA COM_STK 199908104 3,307 -900 -21.39 1,291 0.86 0.0050
2024-08-05 2024-06-30 13F COMFORT SYSTEMS USA COM_STK 199908104 4,207 -3,693 -46.75 1,279 63,850.00 0.0051
2024-05-13 2024-03-31 13F COMFORT SYSTEMS USA COM_STK 199908104 7,900 -1,800 -18.56 3 100.00 0.0100
2024-01-30 2023-12-31 13F COMFORT SYS USA COM 199908104 9,700 -400 -3.96 2 0.00 0.0083
2023-10-26 2023-09-30 13F/A-1 COMFORT SYS USA COM 199908104 10,100 -400 -3.81 2 0.00 0.0077
2023-10-26 2023-09-30 13F COMFORT SYS USA COM 199908104 10,100 -400 2 0.0077
2023-07-31 2023-06-30 13F COMFORT SYS USA COM 199908104 10,500 -300 -2.78 2 0.00 0.0073
2023-08-02 2023-03-31 13F/A-2 COMFORT SYS USA COM 199908104 10,800 -900 -7.69 2 0.00 0.0068
2023-08-02 2023-03-31 13F/A-1 COMFORT SYS USA COM 199908104 10,800 2
2023-04-27 2023-03-31 13F COMFORT SYS USA COM 199908104 10,800 -900 2 0.0081
2023-01-26 2022-12-31 13F COMFORT SYS USA COM 199908104 11,700 100 0.86 1 -99.91 0.0061
2022-10-27 2022-09-30 13F COMFORT SYS USA COM 199908104 11,600 0 0.00 1,129 17.12 0.0054
2022-07-25 2022-06-30 13F COMFORT SYS USA COM 199908104 11,600 700 6.42 964 -0.62 0.0043
2022-04-21 2022-03-31 13F COMFORT SYS USA COM 199908104 10,900 -4,400 -28.76 970 -35.89 0.0035
2022-01-24 2021-12-31 13F COMFORT SYS USA COM 199908104 15,300 -2,600 -14.53 1,513 18.57 0.0053
2021-10-22 2021-09-30 13F COMFORT SYS USA COM 199908104 17,900 800 4.68 1,276 -5.27 0.0048
2021-07-26 2021-06-30 13F COMFORT SYS USA COM 199908104 17,100 -1,300 -7.07 1,347 -2.04 0.0048
2021-04-23 2021-03-31 13F COMFORT SYS USA COM 199908104 18,400 3,800 26.03 1,375 79.04 0.0052
2021-01-25 2020-12-31 13F COMFORT SYS USA COM 199908104 14,600 -200 -1.35 768 0.79 0.0030
2020-12-14 2020-09-30 13F COMFORT SYS USA COM 199908104 14,800 14,800 762 0.0032
2019-10-21 2019-09-30 13F COMFORT SYS USA COM 199908104 0 -20,200 -100.00 0 -100.00
2019-07-25 2019-06-30 13F COMFORT SYS USA COM 199908104 20,200 0 0.00 1,029 -2.74 0.0046
2019-04-19 2019-03-31 13F COMFORT SYS USA COM 199908104 20,200 -800 -3.81 1,058 15.38 0.0048
2019-01-23 2018-12-31 13F COMFORT SYS USA COM 199908104 21,000 0 0.00 917 -22.55 0.0047
2018-10-19 2018-09-30 13F COMFORT SYS USA COM 199908104 21,000 -3,500 -14.29 1,184 5.53 0.0052
2018-08-06 2018-06-30 13F COMFORT SYS USA COM 199908104 24,500 -600 -2.39 1,122 8.41 0.0048
2018-04-20 2018-03-31 13F COMFORT SYS USA COM 199908104 25,100 600 2.45 1,035 -3.18 0.0046
2018-01-23 2017-12-31 13F COMFORT SYS USA COM 199908104 24,500 -2,200 -8.24 1,069 12.17 0.0046
2017-10-23 2017-09-30 13F COMFORT SYS USA COM 199908104 26,700 0 0.00 953 -3.74 0.0041
2017-07-26 2017-06-30 13F COMFORT SYS USA COM 199908104 26,700 0 0.00 990 1.23 0.0044
2017-04-26 2017-03-31 13F COMFORT SYS USA COM 199908104 26,700 -1,800 -6.32 978 3.06 0.0042
2017-01-24 2016-12-31 13F COMFORT SYS USA COM 199908104 28,500 0 0.00 949 13.65 0.0042
2016-10-27 2016-09-30 13F COMFORT SYS USA COM 199908104 28,500 -1,100 -3.72 835 -13.38 0.0037
2016-07-26 2016-06-30 13F COMFORT SYS USA COM 199908104 29,600 800 2.78 964 5.47 0.0043
2016-04-25 2016-03-31 13F/A-1 COMFORT SYS USA COM 199908104 28,800 -1,200 -4.00 914 7.28 0.0041
2016-01-28 2015-12-31 13F COMFORT SYS USA COM 199908104 30,000 -2,600 -7.98 852 -4.05 0.0038
2015-10-21 2015-09-30 13F COMFORT SYS USA COM 199908104 32,600 -6,000 -15.54 888 0.34 0.0042
2015-08-04 2015-06-30 13F COMFORT SYS USA COM 199908104 38,600 -4,100 -9.60 885 -1.45 0.0039
2015-04-27 2015-03-31 13F/A-1 COMFORT SYS USA COM 199908104 42,700 -6,300 -12.86 898 7.03 0.0040
2015-04-21 2015-03-31 13F COMFORT SYS USA COM 199908104 42,700 898
2015-01-23 2014-12-31 13F COMFORT SYS USA COM 199908104 49,000 0 0.00 839 26.36 0.0036
2014-10-29 2014-09-30 13F/A-1 COMFORT SYS USA COM 199908104 49,000 -2,200 -4.30 664 -17.92 0.0029
2014-10-20 2014-09-30 13F COMFORT SYS USA COM 199908104 49,000 664
2014-07-24 2014-06-30 13F COMFORT SYS USA COM 199908104 51,200 0 0.00 809 3.72 0.0036
2014-04-28 2014-03-31 13F COMFORT SYS USA COM 199908104 51,200 4,300 9.17 780 -14.19 0.0035
2014-01-30 2013-12-31 13F COMFORT SYS USA COM 199908104 46,900 -11,500 -19.69 909 -7.43 0.0041
2013-10-24 2013-09-30 13F COMFORT SYS USA COM 199908104 58,400 -4,888 -7.72 982 4.03 0.0043
2013-08-12 2013-06-30 13F COMFORT SYS USA COM 199908104 63,288 63,288 944 0.0041
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.