Comfort Systems insider sells shares; Rule 144 notice

Comfort Systems USA (symbol: FIX) Rule 144 filing discloses recent insider sales and a proposed resale.

Rhea-AI Filing Summary

Comfort Systems USA (symbol: FIX) Rule 144 filing discloses recent insider sales and a proposed resale. Laura F. Howell reported the sale of 1,000 common shares on 12/04/2025 with an associated figure of $995,451.40. She also reported the sale of 690 common shares on 02/25/2026 with an associated figure of $1,008,987.00. The filing also lists 723 common shares associated with Rockefeller Capital Management dated 03/10/2026, with a numeric value of $999,507.98 and an NYSE listing noted.

Insights

Corporate Governance Analyst

Routine Rule 144 resale and reported insider sales; no material governance issues shown.

The filing records two disclosed sales by Laura F. Howell: 1,000 shares on 12/04/2025 (listed with $995,451.40) and 690 shares on 02/25/2026 (listed with $1,008,987.00). These entries are presented as transaction records under the Rule 144 format.

The excerpt also lists 723 common shares tied to Rockefeller Capital Management dated 03/10/2026 with $999,507.98. Cash‑flow treatment and whether proceeds go to issuer or selling holders are not detailed in the provided excerpt; timing and disposition mechanics are limited to the rows shown.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions does the FIX Rule 144 filing show?

The filing shows two reported sales by Laura F. Howell: 1,000 shares on 12/04/2025 and 690 shares on 02/25/2026. Each sale row includes an associated numeric value beside the transaction date in the excerpt.

Does the filing show any planned resales or registered offering for FIX?

The excerpt lists 723 common shares associated with Rockefeller Capital Management dated 03/10/2026. The row appears under "Securities To Be Sold" and includes a numeric value in the same line.

Who reported sales in the provided FIX filing excerpt?

Sales are reported by Laura F. Howell, with addresses shown in the excerpt. The filing rows list her name alongside the transaction dates and share counts for the two sales.

Are proceeds or the recipient of sale proceeds specified in this FIX excerpt?

The excerpt displays dollar figures adjacent to the share and date entries, but it does not explicitly state who received the proceeds or the cash‑flow treatment in the provided rows.

Is the FIX activity in this filing considered routine or material?

This Rule 144 excerpt records specific resale and insider sale rows and should be considered routine transaction reporting; the excerpt does not indicate material corporate events or governance changes.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/10/2026 - 03:54 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001763667
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	COMFORT SYSTEMS USA INC
SEC File Number	001-13011
Address of Issuer	9753 KATY FREEWAY SUITE 700 HOUSTON TEXAS 77024
Phone	7138309600
Name of Person for Whose Account the Securities are To Be Sold	Howell Laura Finley
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Rockefeller Capital Management 300 Crescent Ct, Ste 1450 Dallas TX 75230	723	999507.98	35174967	03/10/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	04/01/2022	Stock Award	Comfort Systems			723	04/01/2022	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Laura F Howell 9753 Katy Freeway ste 700 Houston TX 77024	COMFORT SYSTEMS USA INC	12/04/2025	1000	995451.40
Laura F Howell 9753 Katy Freeway ste 700 Houston TX 77024	COMFORT SYSTEMS USA INC	02/25/2026	690	1008987.00

144: Remarks and Signature

Remarks
Date of Notice	03/10/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Carmen Zamores as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Howell Laura Finley
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)