| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Mercado, Pablo G. | Director | C/O COMFORT SYSTEMS USA, INC., 9753 KATY FREEWAY, SUITE 700, HOUSTON | /s/ Rachel R. Eslicker, Attorney-in-Fact | 30 Oct 2025 | 0001535246 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIX | Common Stock | Sale | $2,513,516 | -2,500 | -38% | $1005.41 | 4,000 | 29 Oct 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. |