Capital World Investors - Sep 30, 2025 SCHEDULE 13G/A Report for Comfort Systems USA, Inc. Common Stock (FIX)

Filing Manager: Capital World Investors
Reporting Manager: Capital World Investors
Security: Comfort Systems USA, Inc. Common Stock
Symbol: FIX
Shares outstanding: 35.3M shares
Disclosed Ownership: 1.8M shares
Ownership: 5.1%
Form type: SCHEDULE 13G/A
Date filed: 11/13/2025, 07:06 PM
Date of event: Sep 30, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Capital World Investors	5.1%	1.8M	1.8M	0	Timothy J. Moon	Vice President and Senior Counsel, Capital Research and Management Company