| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Shaeff Julie | CHIEF ACCOUNTING OFFICER | C/O COMFORT SYSTEMS USA, INC., 9753 KATY FREEWAY, SUITE 700, HOUSTON | /s/ Rachel R. Eslicker, Attorney-in-Fact | 04 Mar 2026 | 0001319782 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIX | Common Stock | Sale | $3,160,974 | -2,287 | -14% | $1382.15 | 13,736 | 03 Mar 2026 | 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. |