Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionKennedy Capital Management, Inc.
Latest Disclosed Ownership2,594 shares
Latest Disclosed Value $ 3,577,100
Kennedy Capital Management, Inc. reports 66.79% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 13, 2026 - Kennedy Capital Management, Inc. filed a 13F-HR form disclosing ownership of 2,594 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $3,577,100 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,811 shares of Comfort Systems USA, Inc.. This represents a change in shares of -66.79% 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)
2026-05-13 2026-03-31 13F Comfort Systems USA COM 199908104 2,594 -5,217 -66.79 3,577 -50.93 0.0758
2026-02-13 2025-12-31 13F Comfort Systems USA COM 199908104 7,811 -2,905 -27.11 7,290 -17.56 0.1544
2025-11-13 2025-09-30 13F Comfort Systems USA COM 199908104 10,716 -7,539 -41.30 8,843 -9.66 0.1955
2025-08-13 2025-06-30 13F Comfort Systems USA COM 199908104 18,255 311 1.73 9,789 69.25 0.2334
2025-05-13 2025-03-31 13F Comfort Systems USA COM 199908104 17,944 -1,386 -7.17 5,784 -29.45 0.1382
2025-02-13 2024-12-31 13F Comfort Systems USA COM 199908104 19,330 -261 -1.33 8,197 7.19 0.1821
2024-11-14 2024-09-30 13F Comfort Systems USA COM 199908104 19,591 -3,178 -13.96 7,647 10.44 0.1689
2024-08-14 2024-06-30 13F COMFORT SYSTEMS USA COM 199908104 22,769 -1,704 -6.96 6,925 -10.95 0.1480
2024-05-15 2024-03-31 13F Comfort Systems USA COM 199908104 24,473 -12,167 -33.21 7,775 3.19 0.1600
2024-02-14 2023-12-31 13F Comfort Systems USA COM 199908104 36,640 -2,002 -5.18 7,536 14.44 0.1646
2023-11-14 2023-09-30 13F Comfort Systems USA COM 199908104 38,642 1,364 3.66 6,585 7.56 0.1605
2023-08-14 2023-06-30 13F Comfort Systems USA COM 199908104 37,278 37,278 6,121 0.1427
2016-02-12 2015-12-31 13F COMFORT SYS USA COM 199908104 0 0 0 0.0000
2015-11-12 2015-09-30 13F COMFORT SYS USA COM 199908104 0 -109,498 -100.00 0 -100.00
2015-08-14 2015-06-30 13F COMFORT SYS USA COM 199908104 109,498 -24,578 -18.33 2,513 -10.92 0.0451
2015-05-07 2015-03-31 13F COMFORT SYS USA COM 199908104 134,076 249 0.19 2,821 23.13 0.0494
2015-02-13 2014-12-31 13F COMFORT SYS USA COM 199908104 133,827 -22,127 -14.19 2,291 8.42 0.0421
2014-11-14 2014-09-30 13F COMFORT SYS USA COM 199908104 155,954 -56,219 -26.50 2,113 -36.96 0.0414
2014-08-14 2014-06-30 13F COMFORT SYS USA COM 199908104 212,173 12,509 6.27 3,352 10.15 0.0623
2014-05-14 2014-03-31 13F COMFORT SYSTEMS USA COM 199908104 199,664 28,990 16.99 3,043 -8.04 0.0573
2014-02-13 2013-12-31 13F COMFORT SYS USA COM 199908104 170,674 57,181 50.38 3,309 73.43 0.0611
2013-11-13 2013-09-30 13F COMFORT SYSTEMS USA COM 199908104 113,493 0 0.00 1,908 12.70 0.0369
2013-08-13 2013-06-30 13F COMFORT SYSTEMS USA COM 199908104 113,493 113,493 1,693 0.0344
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.