Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership12,682 shares
Latest Disclosed Value $ 17,488,351
Trexquant Investment LP reports 35.88% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 12,682 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $17,488,351 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,779 shares of Comfort Systems USA, Inc.. This represents a change in shares of -35.88% 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)
2026-05-15 2026-03-31 13F COMFORT SYS USA COM 199908104 12,682 -7,097 -35.88 17,488 -5.26 0.1257
2026-02-17 2025-12-31 13F COMFORT SYS USA COM 199908104 19,779 -2,936 -12.93 18,460 -1.52 0.1646
2025-11-14 2025-09-30 13F COMFORT SYS USA COM 199908104 22,715 -2,818 -11.04 18,744 36.90 0.1930
2025-08-12 2025-06-30 13F COMFORT SYS USA COM 199908104 25,533 5,616 28.20 13,691 113.29 0.1544
2025-05-14 2025-03-31 13F COMFORT SYS USA COM 199908104 19,917 -1,784 -8.22 6,420 -30.24 0.0747
2025-02-12 2024-12-31 13F COMFORT SYS USA COM 199908104 21,701 -16,670 -43.44 9,203 -38.56 0.1073
2024-11-12 2024-09-30 13F COMFORT SYS USA COM 199908104 38,371 28,741 298.45 14,978 411.54 0.1896
2024-08-13 2024-06-30 13F COMFORT SYS USA COM 199908104 9,630 8,158 554.21 2,929 526.98 0.0447
2024-05-14 2024-03-31 13F COMFORT SYS USA COM 199908104 1,472 -9,936 -87.10 468 -80.09 0.0093
2024-02-09 2023-12-31 13F COMFORT SYS USA COM 199908104 11,408 3,063 36.70 2,346 64.98 0.0528
2023-11-13 2023-09-30 13F COMFORT SYS USA COM 199908104 8,345 -616 -6.87 1,422 -3.33 0.0357
2023-08-11 2023-06-30 13F COMFORT SYS USA COM 199908104 8,961 -15,697 -63.66 1,471 -59.13 0.0386
2023-05-15 2023-03-31 13F COMFORT SYS USA COM 199908104 24,658 6,082 32.74 3,599 68.41 0.0988
2023-02-13 2022-12-31 13F COMFORT SYS USA COM 199908104 18,576 13,878 295.40 2,138 367.61 0.0606
2022-11-14 2022-09-30 13F COMFORT SYS USA COM 199908104 4,698 4,698 457 0.0161
2021-11-12 2021-09-30 13F COMFORT SYS USA COM 199908104 0 -4,082 -100.00 0 -100.00
2021-08-12 2021-06-30 13F COMFORT SYS USA COM 199908104 4,082 4,082 322 0.0272
2021-02-11 2020-12-31 13F COMFORT SYS USA COM 199908104 0 -3,922 -100.00 0 -100.00
2020-11-06 2020-09-30 13F COMFORT SYS USA COM 199908104 3,922 3,922 202 0.0130
2020-05-08 2020-03-31 13F COMFORT SYS USA COM 199908104 0 -13,118 -100.00 0 -100.00
2020-02-12 2019-12-31 13F COMFORT SYS USA COM 199908104 13,118 13,118 654 0.0387
2020-02-14 2019-09-30 13F/A-1 COMFORT SYS USA COM 199908104 0 -4,420 -100.00 0 -100.00
2019-08-09 2019-06-30 13F COMFORT SYS USA COM 199908104 4,420 -6,009 -57.62 225 -58.79 0.0202
2019-05-13 2019-03-31 13F COMFORT SYS USA COM 199908104 10,429 10,429 135.95 546 142.67 0.0388
2019-02-13 2018-12-31 13F COMFORT SYS USA COM 199908104 0 -5,917 -100.00 0 -100.00
2018-11-09 2018-09-30 13F COMFORT SYS USA COM 199908104 5,917 -447 -7.02 334 14.78 0.0251
2018-08-07 2018-06-30 13F COMFORT SYS USA COM 199908104 6,364 6,364 7.55 291 -12.87 0.0202
2018-05-03 2018-03-31 13F COMFORT SYS USA COM 199908104 0 -6,061 -100.00 0 -100.00
2018-02-08 2017-12-31 13F COMFORT SYS USA COM 199908104 6,061 6,061 265 0.0291
2017-08-01 2017-06-30 13F COMFORT SYS USA COM 199908104 0 -11,200 -100.00 0 -100.00
2017-05-08 2017-03-31 13F COMFORT SYS USA COM 199908104 11,200 11,200 410 0.0526
2017-02-10 2016-12-31 13F COMFORT SYS USA COM 199908104 0 -8,868 -100.00 0 -100.00
2016-11-10 2016-09-30 13F COMFORT SYS USA COM 199908104 8,868 -2,332 -20.82 260 -28.77 0.0580
2016-08-10 2016-06-30 13F COMFORT SYS USA COM 199908104 11,200 11,200 26.30 365 40.38 0.0480
2016-05-11 2016-03-31 13F COMFORT SYS USA COM 199908104 0 -46,998 -100.00 0 -100.00
2016-02-10 2015-12-31 13F COMFORT SYS USA COM 199908104 46,998 46,998 0.00 1,336 0.1177
2015-11-02 2015-09-30 13F COMFORT SYS USA COM 199908104 0 -23,500 -100.00 0 -100.00
2015-08-12 2015-06-30 13F COMFORT SYS USA COM 199908104 23,500 6,400 37.43 539 50.14 0.0605
2015-05-13 2015-03-31 13F COMFORT SYS USA COM 199908104 17,100 17,100 359 0.0366
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.