RPM: Financial results · Leadership change · Other company developments

Item 2.02 Results of Operations and Financial Condition. On July 22, 2026, the Company issued a press release announcing its year-end results for fiscal 2026, which provided detail not included in previously issued reports. A copy of the press release is furnished with this Current Report on Form 8-K as Exhibit 99.1 . Financial information supplemental to the press release is furnished with this Current Report on Form 8-K as Exhibit 99.2 . Item 5.02 On July 17, 2026, the Company issued a press release announcing that David C. Dennsteadt has been named President and Chief Operating Officer of the Company, effective as of July 17, 2026. Prior to his appointment as President and Chief Operating Officer, Mr. Dennsteadt had served as the Company’s Executive Vice President. In his new role, Mr. Dennsteadt will additionally provide oversight and leadership to the Company’s operating groups, with the Company’s group presidents now reporting directly to him, in addition to leading strategy and corporate development. There are no arrangements or understandings between Mr. Dennsteadt and other persons pursuant to which he was selected to serve as President and Chief Operating Officer of the Company, nor are there any family relationships between Mr. Dennsteadt and any of the Company’s directors or executive officers. Mr. Dennsteadt has no material interest in any transactions, relationships or arrangements with the Company that would require disclosure under Item 404(a) of Regulation S-K promulgated under the Securities Exchange Act of 1934, as amended. Frank C. Sullivan, who had been serving as the Company’s Chair, President and Chief Executive Officer, will continue to serve as Chair and Chief Executive Officer. Further information about Mr. Dennsteadt is available in the Compan