Comfort Systems USA, Inc. (FIX)
NYSE: FIX · Electrical Work · Houston, TX · filing with the SEC since 1997
Grade6.6
◀ Past 5.8● Present 6.8▶ Future 7.6
Who owns Comfort Systems USA, Inc.
As filed with the SECHolders of 5% or more
3
Blackrock, Inc. holds 8.3% of Common Stock, as its SCHEDULE 13G/A filed Jan 21, 2026 says.
Directors and officers
17
report now, of 23 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Jan 21, 2026 · Common Stock · 10.8% in Dec 4, 2025
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Capital World Investors
SCHEDULE 13G/A · filed Feb 13, 2026 · Common Stock · reported falling below 5%, from 5.1% in Nov 13, 2025
Fmr LLC
SCHEDULE 13G/A · filed May 6, 2026 · COMMON STOCK · reported falling below 5%, from 5.4% in Nov 5, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%, from 12.2% in Jan 30, 2026
What FIX reports owning in othersstakes of 5% or more, and other ties
96 subsidiaries in 3 countries, from the list filed with the 10-K filed Feb 19, 2026.
Insider tradesForm 4
30sales
0purchases
0sales on a scheduled plan
12people selling
$185Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window12 of 23 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Lane Brian E. | CHIEF EXECUTIVE OFF. | 4 | $68.1M | 0 | 0 | $0 |
| Myers Franklin | director | 6 | $52.1M | 0 | 0 | $0 |
| George William III | CHIEF FINANCIAL OFFICER | 5 | $31.7M | 0 | 0 | $0 |
| Anderson Darcy | director | 2 | $10.0M | 0 | 0 | $0 |
| Sandbrook William J | director | 2 | $6.2M | 0 | 0 | $0 |
| Shaeff Julie | CHIEF ACCOUNTING OFFICER | 2 | $5.4M | 0 | 0 | $0 |
| Mercado, Pablo G. | director | 3 | $4.1M | 0 | 0 | $0 |
| Reed Terrence | SVP & CHRO | 2 | $2.5M | 0 | 0 | $0 |
| Bulls Herman E | director | 1 | $2.0M | 0 | 0 | $0 |
| Skidmore Constance Ellen | director | 1 | $1.4M | 0 | 0 | $0 |
| Howell Laura Finley | SVP & GENERAL COUNSEL | 1 | $1.0M | 0 | 0 | $0 |
| Hardy Rhoman J | director | 1 | $600,000 | 0 | 0 | $0 |