X0306 4 2021-02-09 0 0001828791 Viant Technology Inc. DSP 0001219307 VALDES MAX O C/O VIANT TECHNOLOGY INC. 2722 MICHELSON DRIVE, SUITE 100 IRVINE CA 92612 1 0 0 0 Class A Common Stock 2021-02-09 4 A 0 6000 0.00 A 6000 D Class A Common Stock 2021-02-09 4 A 0 6000 0.00 A 12000 D Class A Common Stock 2021-02-09 4 P 0 750 25.00 A 12750 D Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units. The award vests in full on February 9, 2024, subject to the Reporting Person's continued service to the Issuer. Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units. The award vests in full on February 9, 2022, subject to the Reporting Person's continued service to the Issuer. Represents shares purchased in the Issuer's reserved share program in connection with its initial public offering. /s/ Larry Madden, Attorney-in-Fact for Max O. Valdes 2021-02-11