Comfort Systems USA, Inc.
US ˙ NYSE ˙ US1999081045

SecurityFIX / Comfort Systems USA, Inc.
InstitutionSwedbank AB
Latest Disclosed Ownership15,672 shares
Latest Disclosed Value $ 21,611,532
Swedbank AB ownership in FIX / Comfort Systems USA, Inc.

On April 29, 2026 - Swedbank AB filed a 13F-HR form disclosing ownership of 15,672 shares of Comfort Systems USA, Inc. (US:FIX) valued at $21,611,531 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 9, 2026 disclosing 15,672 shares of Comfort Systems USA, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $28,993,827 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-29 2026-03-31 13F COMFORT SYS USA COM 199908104 15,672 0 0.00 21,612 47.76 0.0128
2026-02-09 2025-12-31 13F/A-1 COMFORT SYS USA COM 199908104 15,672 15,672 14,627 0.0141
2026-02-03 2025-12-31 13F COMFORT SYS USA COM 199908104 15,672 15,672 14,627 0.0080
2025-04-14 2025-03-31 13F COMFORT SYS USA COM 199908104 0 -40,000 -100.00 0 -100.00
2025-01-22 2024-12-31 13F COMFORT SYS USA COM 199908104 40,000 -50,000 -55.56 16,962 -51.72 0.0209
2024-10-11 2024-09-30 13F COMFORT SYS USA COM 199908104 90,000 0 0.00 35,132 28.36 0.0449
2024-07-11 2024-06-30 13F COMFORT SYS USA COM 199908104 90,000 -10,000 -10.00 27,371 -13.85 0.0366
2024-05-15 2024-03-31 13F/A-1 COMFORT SYSTEMS COM 199908104 100,000 -5,000 -4.76 31,771 47.12 0.2774
2024-12-06 2023-12-31 13F COMFORT SYS USA COM 199908104 105,000 -20,000 -16.00 21,595 1.38 0.0348
2024-12-06 2023-09-30 13F COMFORT SYS USA COM 199908104 125,000 25,000 25.00 21,301 29.73 0.0369
2024-12-06 2023-06-30 13F COMFORT SYS USA COM 199908104 100,000 -42,500 -29.82 16,420 -21.05 0.0278
2024-12-06 2023-03-31 13F COMFORT SYS USA COM 199908104 142,500 -7,500 -5.00 20,799 20.49 0.0410
2024-12-06 2022-12-31 13F COMFORT SYS USA COM 199908104 150,000 0 0.00 17,262 18.24 0.0380
2024-12-06 2022-09-30 13F COMFORT SYS USA COM 199908104 150,000 0 0.00 14,600 17.05 0.0347
2024-12-06 2022-06-30 13F COMFORT SYS USA COM 199908104 150,000 70,000 87.50 12,472 75.17 0.0282
2024-12-06 2022-03-31 13F COMFORT SYS USA COM 199908104 80,000 -20,000 -20.00 7,121 -27.60 0.0132
2024-12-06 2021-12-31 13F COMFORT SYS USA COM 199908104 100,000 0 0.00 9,834 37.89 0.0164
2024-12-06 2021-09-30 13F COMFORT SYS USA COM 199908104 100,000 10,000 11.11 7,132 0.58 0.0133
2024-12-06 2021-06-30 13F COMFORT SYS USA COM 199908104 90,000 -20,000 -18.18 7,091 -13.78 0.0133
2024-12-06 2021-03-31 13F COMFORT SYS USA COM 199908104 110,000 110,000 8,225 0.0171
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.