UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): July 9, 2019

SINTX Technologies, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (801) 839-3500

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(c) Appointment of Chief Operating Officer

On July 9, 2019, the Board of Directors of SINTX Technologies, Inc. (the “Company”) appointed Mr. David O’Brien to serve as Chief Operating Officer of the Company. Mr. O’Brien, age 54, previously served as the Company’s Vice President and General Manager from October 2016 to July 2019 and from March 2014 through September 2016, he held prior roles as its Vice President of Operations and Vice President of Manufacturing. Mr. O’Brien has over 30 years of experience in engineering, manufacturing, and operations leadership in advanced materials and medical device organizations. From 2005 to 2014, he fulfilled several engineering leadership roles for Covidien including Manufacturing Engineering Manager for the Norfolk, Nebraska facility. From 1991 to 2005, he worked for Arnold Magnetic Technologies in the production of ceramic, powder metal and molded magnets in multiple facilities across the U.S. and in England. He has extensive experience with Lean and other Continuous Improvement initiatives. Mr. O’Brien holds an M.S. in Ceramic Engineering from the Georgia Institute of Technology, and a B.S. in Physics from the University of Texas at San Antonio.

Item 5.07 Submission of Matters to a Vote of Security Holders

On July 12, 2019, SINTX Technologies, Inc. reconvened its 2019 annual meeting of stockholders at which the following matter was voted on:

Proposal No. 2: A proposal to approve an amendment to the Company’s Restated Certificate of Incorporation to effectuate a reverse stock split of the Company’s issued and outstanding shares of Common Stock at a ratio of between 1-for-2 and 1-for-30, inclusive, which ratio will be selected at the sole discretion of our Board of Directors at any whole number in the above range, with any fractional shares that would otherwise be issued as a result of the reverse stock split being rounded up to the nearest whole share (the “Reverse Stock Split”); provided, that our Board of Directors may abandon the Reverse Stock Split in its sole discretion. This proposal was approved.

Item 8.01 Other Events.

A copy of the press release issued by the Company with respect to the matters described in Items 5.02 and 5.07 above, is attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.