Comfort Systems USA, Inc.
MX ˙ BMV ˙ US1999081045
SecurityMX:FIX / Comfort Systems USA, Inc.
InstitutionRegions Financial Corp
Latest Disclosed Ownership977 shares
Latest Disclosed Value $ 1,347,273
Regions Financial Corp reports 32.20% decrease in ownership of FIX / Comfort Systems USA, Inc.

On May 5, 2026 - Regions Financial Corp filed a 13F-HR form disclosing ownership of 977 shares of Comfort Systems USA, Inc. (MX:FIX) valued at $1,347,273 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 1,441 shares of Comfort Systems USA, Inc.. This represents a change in shares of -32.20% 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)
2026-05-05 2026-03-31 13F COMFORT SYS USA COM 199908104 977 -464 -32.20 1,347 0.22 0.0087
2026-01-27 2025-12-31 13F COMFORT SYS USA COM 199908104 1,441 -7 -0.48 1,345 12.56 0.0086
2025-11-19 2025-09-30 13F/A-1 COMFORT SYS USA COM 199908104 1,448 -149 -9.33 1,195 39.49 0.0078
2025-11-19 2025-09-30 13F COMFORT SYS USA COM 199908104 1,448 -149 1,195 0.0077
2025-07-29 2025-06-30 13F COMFORT SYS USA COM 199908104 1,597 -86 -5.11 856 57.93 0.0059
2025-05-08 2025-03-31 13F COMFORT SYS USA COM 199908104 1,683 -81 -4.59 542 -27.54 0.0040
2025-02-14 2024-12-31 13F Comfort Systems USA COM 199908104 1,764 -187 -9.58 748 -1.71 0.0055
2024-11-14 2024-09-30 13F Comfort Systems USA COM 199908104 1,951 -132 -6.34 762 20.22 0.0055
2024-07-31 2024-06-30 13F Comfort Systems USA COM 199908104 2,083 -394 -15.91 633 -19.47 0.0048
2024-04-23 2024-03-31 13F Comfort Systems USA COM 199908104 2,477 -595 -19.37 787 24.56 0.0060
2024-02-06 2023-12-31 13F Comfort Systems USA COM 199908104 3,072 -9 -0.29 632 20.19 0.0052
2023-11-01 2023-09-30 13F Comfort Systems USA COM 199908104 3,081 -150 -4.64 525 -0.94 0.0047
2023-08-09 2023-06-30 13F Comfort Systems USA COM 199908104 3,231 -66 -2.00 531 0.0046
2023-05-12 2023-03-31 13F Comfort Systems USA COM 199908104 3,297 -136 -3.96 0 0.0043
2023-02-06 2022-12-31 13F Comfort Systems USA COM 199908104 3,433 -54 -1.55 0 -100.00 0.0036
2022-11-03 2022-09-30 13F Comfort Systems USA COM 199908104 3,487 -49 -1.39 340 15.65 0.0034
2022-07-25 2022-06-30 13F Comfort Systems USA COM 199908104 3,536 295 9.10 294 2.08 0.0028
2022-04-25 2022-03-31 13F Comfort Systems USA COM 199908104 3,241 -16 -0.49 288 -10.84 0.0023
2022-01-31 2021-12-31 13F Comfort Systems USA COM 199908104 3,257 142 4.56 323 45.50 0.0025
2021-11-04 2021-09-30 13F Comfort Systems USA COM 199908104 3,115 3,115 222 0.0019
2019-07-19 2019-06-30 13F Comfort Systems USA COM 199908104 0 -165 -100.00 0 -100.00
2019-04-19 2019-03-31 13F Comfort Systems USA COM 199908104 165 165 9 0.0001
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.