UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 September 30, 2023 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number 1-05707 GEE GROUP INC. (Exact name of registrant as specified in its charter) Illinois 36-6097429 (State or other jurisdiction of incorporation or (I.R.S. Employer Identification Number) ...