Cyngn Inc.

Rule10b5-1 Trading Arrangement

During thesix months ended* June 30, 2026*, no director or officer of the Company adopted or terminated a “Rule10b5-1 trading arrangement” or “non-Rule10b5-1 trading arrangement,” as each term is defined in Item408(a) of Regulation S-K.

Item5.02 of Form8-K Compensatory Arrangements of Certain Officers

We are providing the following disclosures in lieu of filing a Current Report on Form8-K relating to Item5.02 (Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers):

Salary Increase for Chief Financial Officer

On* June 9, 2026,the Compensation Committee of the Board approved, and on August 12, 2026,the Board approved and ratified, an increase in the annual base salary of Natalie Russell, the Company's Chief Financial Officer, from$250,000* to*$300,000,* effective as of* August 1, 2026.A copy of the Amended and Restated Offer Letter is filed as Exhibit10.3.* Ms. Russell remains eligible for an annual performance bonus with a target of20% of her base salary, and her other compensation arrangements remain unchanged.

The foregoing disclosures are being made in this Quarterly Report on Form10-Q in lieu of filing a Current Report on Form8-K pursuant to Item5.02(e) of Form8-K.