Washington D.C. 20549 Form 10-K (Mark One) Table of Contents ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION 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 001-33160 Spirit AeroSystems Holdings, Inc. (Exact name of registrant as specified in its charter) Delaware 20-2436320 ( ...