Table of Contents Title of each class Trading Symbol(s) Name of each exchange on which registered Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-fourth of one warrant STPC.U The New York Stock Exchange Shares of Class A common stock included as part of the units STPC The New York Stock Exchange Warrants included as part of the units, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 STPC WS The New York Stock Exchange ...

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 December 31, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to | --- | --- | --- | |---------------------------------------------------------------------------------------------------------------------------------------------- ...