Lennox International (LII)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-06 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: LENNOX INTERNATIONAL INC (LII) CIK: 0001069202 --- Reporting Owner --- Name: Kosel Chris CIK: 0001703854 Role: Officer (VP-Corp Controller and CAO) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock, Par Value $0.01 Per Share Date: 2026-05-06 | Code: S (Open market sale) Shares: -971 | Price: $544.80 Total Value: $529,000.80 Shares Owned After: 1,090 | Ownership: D (Direct) Footnotes: [F1] Reflects weighted average sale price of $544.80 at prices ranging from $544.770 - $544.920 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or security holder of the Issuer, full information regarding the number of shares sold at each separate price. --- Footnotes (Complete Index) --- F1: Reflects weighted average sale price of $544.80 at prices ranging from $544.770 - $544.920 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or security holder of the Issuer, full information regarding the number of shares sold at each separate price. --- Signature --- /s/ /s/ Monica M. Brown, attorney-in-fact for Mr. Kosel (2026-05-07)