X0508 4 2023-07-19 0 0000110621 RPM INTERNATIONAL INC/DE/ RPM 0001892453 Laroche Michael J. 2628 PEARL ROAD MEDINA OH 44258 0 1 0 0 VP, Controller & CAO 0 Common Stock, $0.01 par value 2023-07-19 4 A 0 1285 0.00 A 10446 D Common Stock, $0.01 par value 2023-07-19 4 A 0 1800 0.00 A 12246 D Common Stock, $0.01 par value 2023-07-19 4 A 0 3750 0.00 A 15996 D Common Stock, $0.01 par value 2023-07-19 4 F 0 1117 93.51 D 14879 D The Reporting Person was granted 1,285 shares of Common Stock pursuant to the RPM International Inc. 2014 Omnibus Equity and Incentive Plan (the "Plan"). The reporting person was granted 1,800 shares of Common Stock, issued as Performance Earned Restricted Stock, pursuant to the Plan. On July 19, 2023, all of the Reporting Person's Performance Stock Units previously granted in 2020 pursuant to the Plan vested. In accordance with the Plan, the Reporting Person disposed of 1,117 shares of Common Stock back to the Issuer to satisfy tax obligations of the Reporting Person. Includes an aggregate of 4,611 shares of Common Stock issued pursuant to the Plan and 4,200 shares of Common Stock issued as Performance Earned Restricted Stock pursuant to the Plan. /s/ Michael J. Laroche, by Gregory J. Dziak, his attorney-in-fact pursuant to Power of Attorney dated October 27, 2021 on file with the Commission. 2023-07-21