X0508 4 2025-07-23 0001069202 LENNOX INTERNATIONAL INC LII 0001403680 Sessa Daniel M 2140 LAKE PARK BLVD. RICHARDSON TX 75080 1 EVP, Chief HR Officer 1 Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 54 658.61 D 34302 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 32 661.51 D 34270 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 147 663.2369 D 34123 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 16 663.76 D 34107 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 66 669.1252 D 34041 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 21 670.2714 D 34020 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 35 672.00 D 33985 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 21 673.3705 D 33964 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 65 674.6431 D 33899 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 62 677.0561 D 33837 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 43 678.6591 D 33794 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 52 680.0004 D 33742 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 4 681.5575 D 33738 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 7 682.91 D 33731 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 4 685.325 D 33727 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 10 687.63 D 33717 D Common Stock, Par Value $0.01 Per Share 2025-07-23 4 S 0 2143 670.00 D 31574 D Reflects a weighted average sale price of $663.2369 at prices ranging from $662.560 to $663.370 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $669.1252 at prices ranging from $669.030 to $670.010 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $670.2714 at prices ranging from $670.090 to $670.290 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $673.3705 at prices ranging from $673.040 to $673.970 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $674.6431 at prices ranging from $674.400 to $675.000 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $677.0561 prices ranging from $676.950 to $677.270 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $678.6591 at prices ranging from $678.350 to $678.880 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $680.0004 at prices ranging from $679.840 to $680.100 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $681.5575 at prices ranging from $681.360 to $681.710 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. Reflects a weighted average sale price of $685.325 at prices ranging from $685.100 to $686.000 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price. /s/ Monica M. Brown, attorney-in-fact for Daniel M. Sessa 2025-07-24