Comfort Systems USA (NYSE: FIX) SVP & General Counsel sells 1,000 shares

Rhea-AI Filing Summary

Comfort Systems USA, Inc. reported an insider stock sale by its Senior Vice President and General Counsel. On 12/04/2025, the executive sold 1,000 shares of common stock in a single reported transaction at an average price of $ 996.1634 per share, coded as a sale. After this transaction, the executive directly beneficially owns 7,938 shares of Comfort Systems USA common stock.

The company notes that the sale price shown reflects an average, and that detailed information on the number of shares sold at each specific price level is available upon request from the Company’s Office of the General Counsel.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Howell Laura Finley

(Last) (First) (Middle)

C/O COMFORT SYSTEMS USA, INC.

9753 KATY FREEWAY, SUITE 700

(Street)

HOUSTON TX 77024

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
COMFORT SYSTEMS USA INC [ FIX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & GENERAL COUNSEL

3. Date of Earliest Transaction (Month/Day/Year)
12/04/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/04/2025		S		1,000	D	$996.1634(1)	7,938	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

	/s/ Laura Howell	12/05/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Comfort Systems USA (FIX) disclose in this Form 4?

The filing shows that the Senior Vice President and General Counsel of Comfort Systems USA, Inc. sold 1,000 shares of the company’s common stock in a reported transaction on 12/04/2025.

At what price were the Comfort Systems USA (FIX) shares sold in this insider trade?

The reported sale of 1,000 shares of Comfort Systems USA common stock was executed at an average price of $ 996.1634 per share, according to the disclosure.

How many Comfort Systems USA (FIX) shares does the insider own after this transaction?

Following the reported sale, the Senior Vice President and General Counsel directly beneficially owns 7,938 shares of Comfort Systems USA common stock.

Who is the reporting person in this Comfort Systems USA (FIX) Form 4 filing?

The reporting person is an officer of Comfort Systems USA serving as SVP & General Counsel, who filed individually as indicated by the “Form filed by One Reporting Person” checkbox.

Does the Form 4 explain how the Comfort Systems USA (FIX) sale price was calculated?

Yes. The filing states that the reported $ 996.1634 per share is an average price, and that full details on the number of shares sold and specific prices are available upon request from the Company’s Office of the General Counsel.

Is this Comfort Systems USA (FIX) Form 4 filed for more than one reporting person?

No. The filing indicates that it is a Form filed by One Reporting Person, not a joint or group filing.