Brian E. Lane - 24 Nov 2025 Form 4 Insider Report for COMFORT SYSTEMS USA INC (FIX)

Role: PRESIDENT/CHIEF EXECUTIVE OFF., Director
Signature: /s/ Rachel R. Eslicker, Attorney-in-Fact
Issuer symbol: FIX
Transactions as of: 24 Nov 2025
Net transactions value: -$6,785,645
Form type: 4
Filing time: 25 Nov 2025, 11:51:29 UTC
Previous filing: 05 Dec 2025
Next filing: 13 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Lane Brian E.	PRESIDENT/CHIEF EXECUTIVE OFF., Director	C/O COMFORT SYSTEMS USA, INC., 9753 KATY FREEWAY, SUITE 700, HOUSTON	/s/ Rachel R. Eslicker, Attorney-in-Fact	25 Nov 2025	0001448240

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FIX	Common Stock	Sale	$6,785,645	-7,158	-3.8%	$947.98	180,888	24 Nov 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.