X0202 SCHEDULE 13G 0001781002 XXXXXXXX LIVE Common Shares 06/30/2026 0001269026 SINTX TECHNOLOGIES INC 829392703 1885 WEST 2100 STREET SALT LAKE CITY UT 84119 Rule 13d-1(b) Bleichroeder LP DE 647513 0 647513 0 647513 N 9.99 IA Bleichroeder Holdings LLC DE 647513 0 647513 0 647513 N 9.99 HC Andrew Gundlach X1 647513 0 647513 0 647513 N 9.99 HC SINTX TECHNOLOGIES INC 1885 WEST 2100 STREET, SALT LAKE CITY, UT 84119 Bleichroeder Holdings LLC Bleichroeder LP Andrew Gundlach 1345 Avenue of the Americas, 47th Floor New York, NY 10105 Bleichroeder Holdings LLC and Bleichroeder LP: Delaware, USA Andrew Gundlach: United States N IA HC See cover page. See cover page. See cover page. See cover page. See cover page. See cover page. Y N N Bleichroeder LP ("Bleichroeder"), an investment adviser registered under Section 203 of the Investment Advisers Act of 1940, is deemed to be the beneficial owner of 647,513 shares, or 9.99% of the common stock believed to be outstanding as a result of acting as investment adviser to various clients. The 647,513 shares include 523,013 shares of common stock and 124,500 shares of common stock issuable upon exercise of warrants. The exercise of the warrants is subject to a beneficial ownership limitation of 9.99% of the number of shares of common stock outstanding immediately after giving effect to the issuance of shares of common stock issuable upon exercise. If there was no 9.99% limit on the exercise of warrants, Bleichroeder would be deemed to be the beneficial owner of 1,569,039 shares of common stock, representing 21.19% of the outstanding shares of common stock. Clients of Bleichroeder have the right to receive and the ultimate power to direct the receipt of dividends from, or the proceeds of the sale of, such securities. N See Exhibit 99.2 Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Exhibit 99.1: AGREEMENT OF THE REPORTING PERSONS Exhibit 99.2: Subsidiary Information Bleichroeder LP Andrew Gundlach 08/14/2026 Bleichroeder Holdings LLC Andrew Gundlach 08/14/2026 Andrew Gundlach Andrew Gundlach 08/14/2026