Form 4 Filing for George William III

This filing details transactions made by George William III, Chief Financial Officer of COMFORT SYSTEMS USA INC. On March 23, 2026, Mr. William acquired 597 shares of Common Stock through restricted stock units that vest over three years, and 764 performance-based restricted stock units that vested based on the company's Total Shareholder Return and EPS from 2023-2025. He also disposed of 300 shares of Common Stock, which were forfeited performance-based restricted stock units, priced at $1408.25 per share. These transactions adjusted his post-transaction holdings to 38,885 shares.