Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionCresset Asset Management, LLC
Latest Disclosed Ownership668 shares
Latest Disclosed Value $ 921,534
Cresset Asset Management, LLC reports 14.78% increase in ownership of FIX / Comfort Systems USA, Inc.

On May 15, 2026 - Cresset Asset Management, LLC filed a 13F-HR form disclosing ownership of 668 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $921,534 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 582 shares of Comfort Systems USA, Inc.. This represents a change in shares of 14.78% 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 668 86 14.78 922 69.61 0.0040
2026-02-17 2025-12-31 13F COMFORT SYS USA COM 199908104 582 43 7.98 543 22.30 0.0023
2026-01-22 2025-09-30 13F/A-1 COMFORT SYS USA COM 199908104 539 26 5.07 445 61.45 0.0019
2025-11-12 2025-09-30 13F COMFORT SYS USA COM 199908104 778 265 642 0.0024
2026-01-22 2025-06-30 13F/A-1 COMFORT SYS USA COM 199908104 513 -759 -59.67 275 -32.76 0.0014
2025-08-13 2025-06-30 13F COMFORT SYS USA COM 199908104 533 -739 286 0.0012
2025-05-13 2025-03-31 13F COMFORT SYS USA COM 199908104 1,272 425 50.18 410 13.93 0.0020
2025-02-14 2024-12-31 13F COMFORT SYS USA COM 199908104 847 -1,010 -54.39 359 -50.41 0.0017
2024-11-14 2024-09-30 13F COMFORT SYS USA COM 199908104 1,857 310 20.04 725 54.04 0.0028
2024-08-14 2024-06-30 13F COMFORT SYS USA COM 199908104 1,547 115 8.03 470 3.52 0.0020
2024-05-15 2024-03-31 13F COMFORT SYS USA COM 199908104 1,432 78 5.76 455 63.31 0.0022
2024-02-14 2023-12-31 13F COMFORT SYS USA COM 199908104 1,354 -25 -1.81 278 18.30 0.0017
2023-11-14 2023-09-30 13F COMFORT SYS USA COM 199908104 1,379 1,379 235 0.0009
2020-05-15 2020-03-31 13F COMFORT SYS USA COM 199908104 0 -4,215 -100.00 0 -100.00
2020-02-10 2019-12-31 13F COMFORT SYS USA COM 199908104 4,215 4,215 210 0.0057
2019-08-20 2019-06-30 13F/A-1 COMFORT SYS USA COM 199908104 0 -1,209 -100.00 0 -100.00
2019-05-15 2019-03-31 13F COMFORT SYS USA COM 199908104 1,209 387 47.08 63 75.00 0.0024
2019-05-21 2018-12-31 13F/A-1 COMFORT SYS USA COM 199908104 822 822 36 0.0021
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.