SCHEDULE 13G/A 0001535610 XXXXXXXX LIVE 2 Common Stock 12/31/2025 0001874097 Cyngn Inc. 23257B305 1344 TERRA BELLA AVENUE MOUNTAIN VIEW CA 94043 Rule 13d-1(c) SABBY MANAGEMENT, LLC b DE 0.00 77680.00 0.00 77680.00 77680.00 1.0 CO SABBY VOLATILITY WARRANT MASTER FUND LTD b E9 0.00 77680.00 0.00 77680.00 77680.00 1.0 CO HAL MINTZ b FL 0.00 77680.00 0.00 77680.00 77680.00 1.0 IN Cyngn Inc. 1344 TERRA BELLA AVENUE, MOUNTAIN VIEW, CALIFORNIA, 94043 Sabby Volatility Warrant Master Fund, Ltd. Sabby Management, LLC Hal Mintz Sabby Volatility Warrant Master Fund, Ltd. c/o Captiva (Cayman) Ltd Governors Square, Bldg 4, 2nd Floor 23 Lime Tree Bay Avenue P.O. Box 32315 Grand Cayman KY1-1209 Cayman Islands Sabby Management, LLC 1011 Links Dr. Miami Beach, FL 33109 Hal Mintz c/o Sabby Management, LLC 1011 Links Dr. Miami Beach, FL 33109 Sabby Volatility Warrant Master Fund, Ltd. - Cayman Islands Sabby Management, LLC - Delaware, USA Hal Mintz - USA N Sabby Volatility Warrant Master Fund, Ltd. - 77,680 Sabby Management, LLC - 77,680 Hal Mintz - 77,680 Sabby Volatility Warrant Master Fund, Ltd. - 0.97% Sabby Management, LLC - 0.97% Hal Mintz - 0.97% 0 77680 0 77680 As calculated in accordance with Rule 13d-3 of the Securities Exchange Act of 1934, as amended, (i) Sabby Volatility Warrant Master Fund, Ltd. beneficially owns 77,680 shares of the Issuer's common stock (Common Stock), representing approximately 0.97% of the Common Stock, and (ii) Sabby Management, LLC and Hal Mintz each beneficially own 77,680 shares of the Common Stock, representing approximately 0.97% of the Common Stock. Sabby Management, LLC and Hal Mintz do not directly own any shares of Common Stock, but each indirectly owns 77,680 shares of Common Stock. Sabby Management, LLC, a Delaware limited liability company, indirectly owns 77,680 shares of Common Stock because it serves as the investment manager of Sabby Volatility Warrant Master Fund, Ltd. Mr. Mintz indirectly owns 77,680 shares of Common Stock in his capacity as manager of Sabby Management, LLC. Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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. SABBY MANAGEMENT, LLC /s/ Robert Grundstein 01/07/2026 SABBY VOLATILITY WARRANT MASTER FUND LTD /s/ Harry Thompson 01/07/2026 HAL MINTZ /s/ Hal Mintz 01/07/2026