UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Non-accelerated filer x Smaller reporting company o Emerging growth company o Form 10-K x Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the fiscal year ended December 31, 2023 or o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the transition period from __________ to __________ Commission File Number: 001-41710 Atmus Filtration Technologies Inc. (E ...