Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionSterling Capital Management LLC
Latest Disclosed Ownership1,525 shares
Latest Disclosed Value $ 2,102,960
Sterling Capital Management LLC reports 25.43% decrease in ownership of FIX / Comfort Systems USA, Inc.

On April 22, 2026 - Sterling Capital Management LLC filed a 13F-HR form disclosing ownership of 1,525 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $2,102,960 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,045 shares of Comfort Systems USA, Inc.. This represents a change in shares of -25.43% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-22 2026-03-31 13F COMFORT SYSTEMS USA COM 199908104 1,525 -520 -25.43 2,103 10.17 0.0288
2026-02-13 2025-12-31 13F COMFORT SYSTEMS USA COM 199908104 2,045 1,992 3,758.49 1,909 4,337.21 0.0310
2025-11-12 2025-09-30 13F COMFORT SYSTEMS USA COM 199908104 53 0 0.00 44 53.57 0.0006
2025-08-08 2025-06-30 13F/A-1 COMFORT SYSTEMS USA COM 199908104 53 -66 -55.46 28 -26.32 0.0004
2025-08-06 2025-06-30 13F COMFORT SYSTEMS USA COM 199908104 53 -66 28 0.0004
2025-05-13 2025-03-31 13F COMFORT SYSTEMS USA COM 199908104 119 -449 -79.05 38 -84.17 0.0006
2025-02-13 2024-12-31 13F COMFORT SYSTEMS USA COM 199908104 568 -74 -11.53 241 -4.00 0.0033
2024-11-12 2024-09-30 13F COMFORT SYSTEMS USA COM 199908104 642 642 251 0.0032
2019-11-14 2019-09-30 13F COMFORT SYSTEMS USA COM 199908104 0 -13,112 -100.00 0 -100.00
2019-08-14 2019-06-30 13F COMFORT SYSTEMS USA COM 199908104 13,112 0 0.00 669 -2.62 0.0065
2019-05-15 2019-03-31 13F COMFORT SYSTEMS USA COM 199908104 13,112 13,112 687 0.0068
2016-11-14 2016-09-30 13F COMFORT SYS USA INC COM COM 199908104 0 -18,325 -100.00 0 -100.00
2016-08-19 2016-06-30 13F COMFORT SYS USA INC COM COM 199908104 18,325 0 0.00 597 2.58 0.0055
2016-05-17 2016-03-31 13F COMFORT SYS USA INC COM COM 199908104 18,325 -7,152 -28.07 582 -19.61 0.0053
2016-02-17 2015-12-31 13F COMFORT SYS USA INC COM COM 199908104 25,477 -29,066 -53.29 724 -51.31 0.0064
2015-11-16 2015-09-30 13F COMFORT SYS USA INC COM COM 199908104 54,543 4,782 9.61 1,487 30.21 0.0133
2015-08-17 2015-06-30 13F COMFORT SYS USA INC COM COM 199908104 49,761 12,485 33.49 1,142 45.66 0.0103
2015-05-19 2015-03-31 13F COMFORT SYS USA INC COM COM 199908104 37,276 1,122 3.10 784 26.66 0.0070
2015-05-22 2014-12-31 13F/A-1 COMFORT SYS USA INC COM COM 199908104 36,154 0 0.00 619 26.33 0.0054
2015-02-13 2014-12-31 13F COMFORT SYS USA INC COM COM 199908104 36,154 619
2014-11-14 2014-09-30 13F COMFORT SYS USA INC COM COM 199908104 36,154 0 0.00 490 -14.19 0.0059
2014-08-15 2014-06-30 13F COMFORT SYS USA INC COM COM 199908104 36,154 9,786 37.11 571 42.04 0.0049
2014-05-16 2014-03-31 13F COMFORT SYS USA INC COM COM 199908104 26,368 -1,987 -7.01 402 -26.91 0.0034
2014-02-14 2013-12-31 13F COMFORT SYS USA INC COM COM 199908104 28,355 28,355 550 0.0050
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.