Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF ☒ 1934 FOR THE FISCAL YEAR ENDED June 30, 2023 OR 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 1-5318 KENNAMETAL INC. (Exact name of registrant as specified in its charter) Pennsylvania 25-0900168 (State or other ...