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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , DC 20549 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 30 , 2021 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES ACT OF 1934 For the transition period from Title of each class Common Stock , no par value FORM 10 - K Colorado ( State or Other Jurisdiction of Incorporation or Organization ) 2361 McGaw Avenue , Irvine , CA ( Address of Principal Executive Offices ) OR Commission File Number : 000-14942 Large accelerated filer Non - accelerated filer PRO - DEX , INC . ( Exact name of registrant as specified in its charter ) to 84-1261240 ( I.R.S. Employer Identification No. ) ( 949 ) 769-3200 ( Registrant's telephone number , including area code ) 92614 ( Zip Code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol ( s ) PDEX Name of each exchange on which registered NASDAQ Capital Market Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes No Indicate by check mark whether the registrant : ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes No No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated file a non - accelerated filer , smaller reporting company , or an emerging growth company in Rule 12b - 2 of the Exchange Act . Accelerated filer Smaller reporting company - Emerging growth company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . □ Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No As of December 31 , 2020 , the aggregate market value of the voting and non - voting common equity held by non - affiliates computed by reference to the closing sales price on the Nasdaq Capital Market was approximately $ 74.6 million . For the purpose of this calculation shares owned by officers , directors , and 10 % shareholders known to the registrant have been deemed to be owned by affiliates . This calculation does not reflect a determination that persons are affiliates for any other purposes .