Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionJacobs Levy Equity Management, Inc
Latest Disclosed Ownership96,221 shares
Latest Disclosed Value $ 132,687,797
Jacobs Levy Equity Management, Inc reports 64.08% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 15, 2026 - Jacobs Levy Equity Management, Inc filed a 13F-HR form disclosing ownership of 96,221 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $132,687,797 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 267,873 shares of Comfort Systems USA, Inc.. This represents a change in shares of -64.08% 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 96,221 -171,652 -64.08 132,688 -46.93 0.5578
2026-02-13 2025-12-31 13F COMFORT SYS USA COM 199908104 267,873 -4,568 -1.68 250,003 11.21 0.9654
2025-11-17 2025-09-30 13F COMFORT SYS USA COM 199908104 272,441 -28,113 -9.35 224,813 39.50 0.8932
2025-08-14 2025-06-30 13F COMFORT SYS USA COM 199908104 300,554 -19,259 -6.02 161,160 56.34 0.6319
2025-05-15 2025-03-31 13F COMFORT SYS USA COM 199908104 319,813 239,692 299.16 103,085 203.41 0.4089
2025-02-14 2024-12-31 13F COMFORT SYS USA COM 199908104 80,121 80,121 33,976 0.1202
2024-02-14 2023-12-31 13F COMFORT SYS USA COM 199908104 0 -10,133 -100.00 0 -100.00
2023-11-17 2023-09-30 13F COMFORT SYS USA COM 199908104 10,133 -9,163 -47.49 1,727 -45.52 0.0102
2023-08-14 2023-06-30 13F COMFORT SYS USA COM 199908104 19,296 -18,922 -49.51 3,168 -43.21 0.0183
2023-05-15 2023-03-31 13F COMFORT SYS USA COM 199908104 38,218 11,684 44.03 5,578 82.71 0.0342
2023-02-14 2022-12-31 13F COMFORT SYS USA COM 199908104 26,534 26,534 3,054 0.0207
2020-08-17 2020-06-30 13F COMFORT SYS USA COM 199908104 0 -108,603 -100.00 0 -100.00
2020-05-15 2020-03-31 13F COMFORT SYS USA COM 199908104 108,603 1,859 1.74 3,969 -25.41 0.0510
2020-02-14 2019-12-31 13F COMFORT SYS USA COM 199908104 106,744 -14,715 -12.12 5,321 -0.95 0.0522
2019-11-14 2019-09-30 13F COMFORT SYS USA COM 199908104 121,459 20,710 20.56 5,372 4.57 0.0659
2019-08-13 2019-06-30 13F COMFORT SYS USA COM 199908104 100,749 8,740 9.50 5,137 6.58 0.0711
2019-05-14 2019-03-31 13F COMFORT SYS USA COM 199908104 92,009 21,010 29.59 4,820 55.43 0.0696
2019-02-14 2018-12-31 13F COMFORT SYS USA COM 199908104 70,999 25,190 54.99 3,101 20.01 0.0545
2018-11-14 2018-09-30 13F COMFORT SYS USA COM 199908104 45,809 45,809 2,584 0.0367
2018-02-13 2017-12-31 13F COMFORT SYS USA COM 199908104 0 -72,700 -100.00 0 -100.00
2017-11-14 2017-09-30 13F COMFORT SYS USA COM 199908104 72,700 11,030 17.89 2,595 13.42 0.0504
2017-11-09 2017-06-30 13F/A-1 COMFORT SYS USA COM 199908104 61,670 39,300 175.68 2,288 179.02 0.0489
2017-08-14 2017-06-30 13F COMFORT SYS USA COM 199908104 61,670 39,300 2,288
2017-05-12 2017-03-31 13F COMFORT SYS USA COM 199908104 22,370 22,370 820 0.0166
2016-11-14 2016-09-30 13F COMFORT SYS USA COM 199908104 0 -25,850 -100.00 0 -100.00
2016-08-15 2016-06-30 13F COMFORT SYS USA COM 199908104 25,850 0 0.00 842 2.56 0.0174
2016-05-16 2016-03-31 13F COMFORT SYS USA COM 199908104 25,850 25,850 0.00 821 0.0174
2015-02-17 2014-12-31 13F COMFORT SYS USA COM 199908104 0 -121,488 -100.00 0 -100.00
2014-11-14 2014-09-30 13F COMFORT SYS USA COM 199908104 121,488 -31,888 -20.79 1,646 -32.07 0.0275
2014-08-14 2014-06-30 13F COMFORT SYS USA COM 199908104 153,376 22,768 17.43 2,423 21.76 0.0401
2014-05-15 2014-03-31 13F COMFORT SYS USA COM 199908104 130,608 -64,631 -33.10 1,990 -47.44 0.0333
2014-02-14 2013-12-31 13F COMFORT SYS USA COM 199908104 195,239 92,358 89.77 3,786 118.97 0.0569
2013-11-14 2013-09-30 13F COMFORT SYS USA COM 199908104 102,881 44,700 76.83 1,729 99.19 0.0293
2013-08-14 2013-06-30 13F COMFORT SYS USA COM 199908104 58,181 58,181 868 0.0153
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.