Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionFranklin Resources Inc
Latest Disclosed Ownership203,388 shares
Latest Disclosed Value $ 280,470,018
Franklin Resources Inc reports 12.99% increase in ownership of FIX / Comfort Systems USA, Inc.

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 203,388 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $280,470,018 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 180,011 shares of Comfort Systems USA, Inc.. This represents a change in shares of 12.99% 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 SYS USA COM 199908104 203,388 23,377 12.99 280,470 66.94 0.0112
2026-02-11 2025-12-31 13F COMFORT SYS USA COM 199908104 180,011 29,881 19.90 168,002 35.61 0.0412
2025-11-13 2025-09-30 13F COMFORT SYS USA COM 199908104 150,130 -40,607 -21.29 123,884 21.13 0.0309
2025-08-12 2025-06-30 13F COMFORT SYS USA COM 199908104 190,737 31,145 19.52 102,275 98.82 0.0271
2025-05-13 2025-03-31 13F COMFORT SYS USA COM 199908104 159,592 -14,814 -8.49 51,441 -30.45 0.0148
2025-02-12 2024-12-31 13F COMFORT SYS USA COM 199908104 174,406 8,827 5.33 73,959 6.56 0.0205
2024-11-27 2024-09-30 13F/A-1 COMFORT SYS USA COM 199908104 165,579 1,236 0.75 69,402 38.86 0.0195
2024-11-12 2024-09-30 13F COMFORT SYS USA COM 199908104 165,579 1,236 69,402 0.0033
2024-08-14 2024-06-30 13F COMFORT SYS USA COM 199908104 164,343 -9,717 -5.58 49,980 -9.62 0.0154
2024-05-13 2024-03-31 13F COMFORT SYS USA COM 199908104 174,060 163,488 1,546.42 55,301 2,443.70 0.0175
2024-02-09 2023-12-31 13F COMFORT SYS USA COM 199908104 10,572 -5 -0.05 2,174 20.64 0.0010
2023-11-13 2023-09-30 13F COMFORT SYS USA COM 199908104 10,577 282 2.74 1,802 6.63 0.0009
2023-08-11 2023-06-30 13F COMFORT SYS USA COM 199908104 10,295 10,295 1,690 0.0008
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.