| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Shaeff Julie | CHIEF ACCOUNTING OFFICER | C/O COMFORT SYSTEMS USA, INC., 675 BERING DR. SUITE 400, HOUSTON | /s/ Rachel R. Eslicker, Attorney-in-Fact | 13 Aug 2025 | 0001319782 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIX | Common Stock | Sale | $964,460 | -1,369 | -7.9% | $704.50 | 16,023 | 12 Aug 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. |