UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 July 31, 2021. or ☐ Transition report pursuant to section 13 or 15(d) of the securities exchange act of 1934. Commission File Number: 1-16371 IDT Corporation (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 22-3415036 (I.R.S. Employer Iden ...