X0508 4 2026-02-24 0000899051 ALLSTATE CORP ALL 0001725539 Merten Jesse E C/O THE ALLSTATE CORPORATION 3100 SANDERS ROAD NORTHBROOK IL 60062 1 PresPersonalProperty-Liability 1 Common Stock 2026-02-24 4 M 0 1201 0 A 32834 D Common Stock 2026-02-24 4 F 0 533 209.82 D 32301 D Common Stock 2026-02-25 4 M 0 12879 122.64 A 45180 D Common Stock 2026-02-25 4 M 0 1734 133.00 A 46914 D Common Stock 2026-02-25 4 M 0 19373 137.10 A 66287 D Common Stock 2026-02-25 4 S 0 8811 207.5314 D 57476 D Common Stock 2026-02-25 4 S 0 15893 208.5753 D 41583 D Common Stock 2026-02-25 4 S 0 7982 209.4048 D 33601 D Common Stock 2026-02-25 4 S 0 1300 210.4385 D 32301 D Common Stock 7823 I By 401(k) Plan Restricted Stock Units 2026-02-24 4 M 0 1201 0 D 2028-02-24 Common Stock 1201 2402 D Employee Stock Option (Right to Buy) 122.64 2026-02-25 4 M 0 12879 0 D 2025-02-17 2032-02-17 Common Stock 12879 0 D Employee Stock Option (Right to Buy) 133.00 2026-02-25 4 M 0 1734 0 D 2025-10-05 2032-10-05 Common Stock 1734 868 D Employee Stock Option (Right to Buy) 137.10 2026-02-25 4 M 0 19373 0 D 2026-02-16 2033-02-16 Common Stock 19373 9687 D Conversion of previously awarded Restricted Stock Units (RSUs) into an equal number of common shares, without the payment of any consideration, pursuant to The Allstate Corporation 2019 Equity Incentive Plan. The remaining RSUs will convert on February 24, 2027 and February 24, 2028. The option exercise and sale transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan that was adopted on November 7, 2025. Reflects weighted average sale price for open-market sales transaction reported herein. Actual sale prices ranged from $206.96 to $207.86. The reporting person provided the issuer, and will provide any security holder of The Allstate Corporation or member of the SEC staff, full information regarding the number of shares sold at each separate price upon request. Reflects weighted average sale price for open-market sales transaction reported herein. Actual sale prices ranged from $207.96 to $208.95. The reporting person provided the issuer, and will provide any security holder of The Allstate Corporation or member of the SEC staff, full information regarding the number of shares sold at each separate price upon request. Reflects weighted average sale price for open-market sales transaction reported herein. Actual sale prices ranged from $208.97 to $209.96. The reporting person provided the issuer, and will provide any security holder of The Allstate Corporation or member of the SEC staff, full information regarding the number of shares sold at each separate price upon request. Reflects weighted average sale price for open-market sales transaction reported herein. Actual sale prices ranged from $210.06 to $210.47. The reporting person provided the issuer, and will provide any security holder of The Allstate Corporation or member of the SEC staff, full information regarding the number of shares sold at each separate price upon request. /s/ Meghan E. Jauhar, attorney-in-fact for Jesse E. Merten 2026-02-26