13. Subsequent Events

Rights Offering

On October 17, 2022, the Company completed a rights offering (the “Rights Offering”) to holders of the Company’s Series B Preferred Shares, Series C Preferred Shares, and warrants issued March 6, 2018, May 8, 2018, May 14, 2018, and February 6, 2020 (collectively, the “Security Holders”) for subscriptions of 4,656 rights resulting in gross proceeds to the Company of approximately $4.7 million. Under the Rights Offering, the Company distributed to the Security Holders, at no charge, one non-transferable subscription right for each share of common stock, share of Series B Preferred Stock, share of Series C Preferred Stock, and each participating warrant (on an as-if-converted-to-common-stock basis) held on the record date, September 23, 2022. Each right entitled the holder to purchase one unit, at a subscription price of $1,000 per unit, consisting of one share of Series D Convertible Preferred Stock with a face value of $1,000 (and immediately convertible into shares of SINTX’s common stock at a conversion price equal to $0.15102 (the “Conversion Price”)), and 2,713 common stock purchase warrants expiring five years from the date of issuance, which we refer to as the Class A Warrants, and (iii) 2,713 common stock purchase warrants expiring three years from the date of issuance, which we refer to as the Class B Warrants and, together with the Class A Warrants, the Warrants with each warrant exercisable for one share of common stock at an exercise price of $0.15102 per share.