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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - Q ( Mark One ) [ X ] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31 , 2021 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-33624 SINTX Technologies , Inc. ( Exact name of registrant as specified in its charter ) DELAWARE ( State or other jurisdiction of incorporation or organization ) 1885 West 2100 South , Salt Lake City , UT ( Address of principal executive offices ) ( 801 ) 839-3500 84-1375299 ( IRS Employer Identification No. ) ( Registrant's telephone number , including area code ) 84119 ( Zip Code ) Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock Trading Symbols SINT Name of each exchange on which registered The NASDAQ Capital Market 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 [ X ] 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 ( § 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit and post such files ) ; Yes [ X ] No [ ] Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company or an emerging growth company . See definitions of “ large accelerated filer , ” “ accelerated filer , ” “ smaller reporting company " and " emerging growth company ” in Rule 12b - 2 of the Exchange Act : Large accelerated filer Non - accelerated filer [ ] Accelerated filer [ ] Smaller reporting company Emerging growth company [ ] [ X ] [ ] 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 . [ ]