UNITED STATES SECURITIES AND EXCHANGE COMMISSION ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40839 GigCapital5, Inc. (Exact Name of Registrant as Specified in its Charter) WASHINGTON, DC 20549 FORM 10-Q (Mark One) Delaware 86-1728920 (State or other jurisdiction of incorporation or organizatio ...