[144] Comfort Systems USA, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 notice for Comfort Systems USA, Inc. (symbol: FIX) shows a proposed sale of 700 shares of common stock through RBC Capital Markets (Minneapolis) with an aggregate market value of $495,982.00. The filer named is William Sandbrook; acquisition records on the form show 180 shares were acquired as compensation on 05/21/2024 and 520 shares as compensation on 05/25/2018. The document also lists a prior sale of 700 shares on 08/25/2025 with gross proceeds of $482,702.00. The filer attests there is no undisclosed material adverse information.

Insights

Securities Compliance Analyst

TL;DR: Routine Rule 144 notice for an insider sale; compliance representation included.

The filing is a standard Rule 144 notification documenting a proposed sale by an insider/affiliate through a broker-dealer. It lists acquisition dates and the fact that the shares were received as compensation, and includes an attestation that no material non-public information is known. From a compliance perspective, the form meets Rule 144 disclosure requirements by identifying the broker, number of shares, and acquisition history. No additional details about trading plans or restrictions are provided in the notice.

Financial Analyst

TL;DR: Small, routine insider sell notice; not directly material to company financials.

The transaction documents the proposed disposition of 700 common shares with an indicated aggregate market value of $495,982.00 and references past proceeds of $482,702.00 for a sale on 08/25/2025. The amounts are disclosed but the filing contains no operational or financial performance data for the issuer, so it does not change the company's reported results or guidance. For investors, the filing signals an insider sale but provides no context on intent beyond the required attestation.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	700	495982.00	35281452	09/09/2025	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	05/21/2024	COMPENSATION	ISSUER			180	05/21/2024	N/A
COMMON	05/25/2018	COMPENSATION	ISSUER			520	05/25/2018	N/A

* 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
WILLIAM SANDBROOK C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	COMFORT SYSTEMS USA INC	08/25/2025	700	482702.00

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 for Comfort Systems USA (FIX) disclose?

The form discloses a proposed sale of 700 common shares through RBC Capital Markets with an aggregate market value of $495,982.00 and identifies the filer as William Sandbrook.

When were the shares to be sold acquired according to the filing?

The filing lists acquisitions as 05/21/2024 (180 shares, compensation) and 05/25/2018 (520 shares, compensation).

Did the filer report any recent sales in the past three months?

Yes. The form lists a sale on 08/25/2025 of 700 shares with gross proceeds of $482,702.00.

Which broker-dealer is handling the proposed sale?

The broker named is RBC Capital Markets LLC, located at 250 Nicollet Mall, Suite 1700, Minneapolis, MN 55401.

Does the filing indicate the filer has material non-public information?

No. The filer signs an attestation representing that they do not know any material adverse information about the issuer that has not been publicly disclosed.