X0306 4 2020-06-05 0 0001280263 AMBARELLA INC AMBA 0001602676 Chen Yun-Lung 3101 JAY STREET SANTA CLARA CA 95054 0 1 0 0 VP, Business Development Ordinary Shares 2020-06-05 4 M 0 5555 8.82 A 42561 D Ordinary Shares 2020-06-05 4 S 0 5555 55.8219 D 37006 D Non-Qualified Stock Option (right to buy) 8.82 2020-06-05 4 M 0 5555 0.0 D 2020-11-02 Ordinary Shares 5555 0 D The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $55.8201 to $55.8526 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4. Shares subject to the option vest monthly over four years beginning on August 1, 2010. By: /s/ Michael Morehead, Attorney-in-Fact For: Yun-Lung Chen 2020-06-08