| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | C/O COMFORT SYSTEMS USA, INC., 675 BERING DRIVE, SUITE 400, HOUSTON | /s/ Rachel R. Eslicker, Attorney-in-Fact | 11 Aug 2025 | 0001205073 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIX | Common Stock | Options Exercise | $105,922 | +2,922 | +6.2% | $36.25 | 50,395 | 08 Aug 2025 | Direct | |
| transaction | FIX | Common Stock | Options Exercise | $234,345 | +5,514 | +11% | $42.50 | 55,909 | 08 Aug 2025 | Direct | |
| transaction | FIX | Common Stock | Sale | $5,842,785 | -8,436 | -15% | $692.60 | 47,473 | 08 Aug 2025 | Direct | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FIX | Option to Buy | Options Exercise | $0 | -2,922 | -100% | $0.000000 | 0 | 08 Aug 2025 | Common Stock | 2,922 | $36.25 | Direct | F2 |
| transaction | FIX | Option to Buy | Options Exercise | $0 | -5,514 | -38% | $0.000000 | 9,000 | 08 Aug 2025 | Common Stock | 5,514 | $42.50 | Direct | F3 |
| 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. |
| F2 | Stock options were granted on 03/08/2017, vested ratably over a three-year period, and were fully vested on 04/01/2020. |
| F3 | Stock options were granted on 03/07/2018, vested ratably over a three-year period, and were fully vested on 04/01/2021. |