Comfort Systems USA, Inc.
US ˙ NYSE ˙ US1999081045

SecurityFIX / Comfort Systems USA, Inc.
InstitutionEnsign Peak Advisors, Inc
Latest Disclosed Ownership28,394 shares
Latest Disclosed Value $ 39,155,042
Ensign Peak Advisors, Inc reports 4.01% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 13, 2026 - Ensign Peak Advisors, Inc filed a 13F-HR form disclosing ownership of 28,394 shares of Comfort Systems USA, Inc. (US:FIX) valued at $39,155,042 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 29,579 shares of Comfort Systems USA, Inc.. This represents a change in shares of -4.01% during the quarter. The current value of the position is $52,356,832 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)
2026-05-13 2026-03-31 13F COMFORT SYS USA COM 199908104 28,394 -1,185 -4.01 39,155 41.84 0.0730
2026-02-12 2025-12-31 13F COMFORT SYS USA COM 199908104 29,579 21,410 262.09 27,606 309.57 0.0488
2025-11-13 2025-09-30 13F COMFORT SYS USA COM 199908104 8,169 -3,185 -28.05 6,741 10.71 0.0111
2025-08-12 2025-06-30 13F COMFORT SYS USA COM 199908104 11,354 -5,597 -33.02 6,088 11.44 0.0104
2025-05-14 2025-03-31 13F COMFORT SYS USA COM 199908104 16,951 -17 -0.10 5,464 -24.07 0.0105
2025-02-14 2024-12-31 13F COMFORT SYS USA COM 199908104 16,968 784 4.84 7,195 13.90 0.0128
2024-11-14 2024-09-30 13F COMFORT SYS USA COM 199908104 16,184 -7,015 -30.24 6,317 -10.46 0.0111
2024-08-13 2024-06-30 13F COMFORT SYS USA COM 199908104 23,199 9,490 69.22 7,055 62.00 0.0129
2024-05-14 2024-03-31 13F COMFORT SYS USA COM 199908104 13,709 -4,089 -22.97 4,355 18.99 0.0080
2024-02-14 2023-12-31 13F COMFORT SYS USA COM 199908104 17,798 -7,152 -28.67 3,661 -13.90 0.0072
2023-11-13 2023-09-30 13F COMFORT SYS USA COM 199908104 24,950 -2,563 -9.32 4,252 -5.89 0.0091
2023-08-14 2023-06-30 13F COMFORT SYS USA COM 199908104 27,513 16,350 146.47 4,518 177.29 0.0092
2023-05-15 2023-03-31 13F COMFORT SYS USA COM 199908104 11,163 200 1.82 1,629 29.18 0.0035
2023-02-13 2022-12-31 13F Comfort Systems USA COM 199908104 10,963 3,650 49.91 1,262 77.11 0.0028
2022-11-14 2022-09-30 13F Comfort Systems USA COM 199908104 7,313 0 0.00 712 17.11 0.0018
2022-08-12 2022-06-30 13F Comfort Systems USA COM 199908104 7,313 0 0.00 608 -6.61 0.0014
2022-05-16 2022-03-31 13F Comfort Systems USA COM 199908104 7,313 0 0.00 651 -10.08 0.0013
2022-02-11 2021-12-31 13F Comfort Systems USA COM 199908104 7,313 -23,890 -76.56 724 -67.46 0.0014
2021-11-12 2021-09-30 13F Comfort Systems USA COM 199908104 31,203 0 0.00 2,225 -9.48 0.0046
2021-08-13 2021-06-30 13F Comfort Systems USA COM 199908104 31,203 0 0.00 2,458 5.36 0.0050
2021-05-12 2021-03-31 13F Comfort Systems USA COM 199908104 31,203 0 0.00 2,333 42.00 0.0050
2021-02-12 2020-12-31 13F Comfort Systems USA COM 199908104 31,203 0 0.00 1,643 2.24 0.0037
2020-11-12 2020-09-30 13F Comfort Systems USA COM 199908104 31,203 0 0.00 1,607 26.34 0.0041
2020-08-12 2020-06-30 13F Comfort Systems USA COM 199908104 31,203 0 0.00 1,272 11.58 0.0035
2020-05-11 2020-03-31 13F Comfort Systems USA COM 199908104 31,203 0 0.00 1,140 -26.69 0.0038
2020-02-14 2019-12-31 13F Comfort Systems USA COM 199908104 31,203 31,203 1,555 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.