Capital World Investors - 30 Sep 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: 35,280,588 shares
Disclosed Ownership: 1,799,310 shares
Ownership: 5.1%
Form type: SCHEDULE 13G/A
Filing time: 13 Nov 2025, 19:06:13 UTC
Date of event: 30 Sep 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%	1,799,310	1,799,310	0	Timothy J. Moon	Vice President and Senior Counsel, Capital Research and Management Company