| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF., Director | C/O COMFORT SYSTEMS USA, INC., 9753 KATY FREEWAY, SUITE 700, HOUSTON | /s/ Rachel R. Eslicker, Attorney-in-Fact | 2025-11-25 | 0001448240 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIX | Common Stock | Sale | -$6.79M | -7.16K | -3.81% | $947.98 | 181K | Nov 24, 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. |