Rachel Eslicker's Restricted Stock Unit Forfeitures at Comfort Systems USA

This Form 4 filing reports that Rachel R. Eslicker, SVP & General Counsel of Comfort Systems USA Inc., forfeited shares of common stock on April 1, 2026. The filing details three separate forfeiture transactions totaling 99 shares, all related to the vesting of restricted stock units (RSUs) from previous grants. Specifically, 31 shares were forfeited from RSUs granted on March 19, 2025; 25 shares from RSUs granted on March 20, 2024; and 43 shares from the final vesting of RSUs granted on March 21, 2023. All forfeitures were priced at $1,429.595 per share, based on the average of the high and low stock price on April 1, 2026. Following these transactions, Eslicker's direct ownership decreased to 608 shares. The filing was signed on April 3, 2026, and covers the reporting period of April 1, 2026.