William J. Sandbrook - 18 May 2026 Form 4 Insider Report for COMFORT SYSTEMS USA INC (FIX)

Reporting relationship: Director
Issuer ticker: FIX
Reported as of: 18 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 May 2026, 16:30:26 UTC
Prior SEC filing: 30 Apr 2026
Next SEC filing: 21 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Rachel R. Eslicker, Attorney-in-Fact

Key filing fact

William J. Sandbrook filed Form 4 for COMFORT SYSTEMS USA INC (FIX) on 19 May 2026.

Key facts

This page summarizes William J. Sandbrook's Form 4 filing for COMFORT SYSTEMS USA INC (FIX).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 19 May 2026, 16:30.

Change

Previous filing in this sequence was filed on 30 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001527678 Primary reporting owner

SANDBROOK WILLIAM J

Relationship: Director
Address: C/O COMFORT SYSTEMS USA, INC., 9753 KATY FREEWAY, SUITE 700, HOUSTON
Signature: /s/ Rachel R. Eslicker, Attorney-in-Fact
Signature date: 19 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FIX transaction

Common Stock

Award

Transaction value
Shares: +105
Change %: +1.4%
Price: $0.000000^*
Shares after: 7,771
Date: 18 May 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This year's grant is equal to $200,000, as rounded up to the nearest whole share, based on the average of the high and low price of the Company's Common Stock on the day of the annual stockholders' meeting.

Footnote F2

Shares held directly by the Reporting Person, including 170 shares held indirectly by the Reporting Person.