UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 __________________________ FORM 10-K __________________ __________________________ (Mark One) ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended October 31, 2020 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: 1-8929 ABM INDUSTRIES INCORPORATED (Exact name of registrant as ...