| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Trent T McKenna | EVP & CHIEF OPERATING OFFICER | C/O COMFORT SYSTEMS USA, INC., 675 BERING DRIVE, SUITE 400, HOUSTON | /s/ Rachel R. Eslicker, Attorney-in-Fact | 31 Jul 2025 | 0001373205 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIX | Common Stock | Sale | -$3.15M | -4.4K | -16.9% | $716.63 | 21.6K | 31 Jul 2025 | Direct | F1 |
| 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. |