0001950047-25-006918.txt : 20250910 0001950047-25-006918.hdr.sgml : 20250910 20250910161202 ACCESSION NUMBER: 0001950047-25-006918 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20250910 DATE AS OF CHANGE: 20250910 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: AMBARELLA INC CENTRAL INDEX KEY: 0001280263 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] ORGANIZATION NAME: 04 Manufacturing EIN: 980459628 FISCAL YEAR END: 0131 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-35667 FILM NUMBER: 251306004 BUSINESS ADDRESS: STREET 1: 3001 TASMAN DRIVE CITY: SANTA CLARA STATE: CA ZIP: 95054 BUSINESS PHONE: 408-734-8888 MAIL ADDRESS: STREET 1: 3001 TASMAN DRIVE CITY: SANTA CLARA STATE: CA ZIP: 95054 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Chen Yun-Lung CENTRAL INDEX KEY: 0001602676 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 3001 TASMAN DRIVE CITY: SANTA CLARA STATE: CA ZIP: 95054 FORMER COMPANY: FORMER CONFORMED NAME: Chen Yen-Lung DATE OF NAME CHANGE: 20140314 144 1 primary_doc.xml 144 0001602676 XXXXXXXX LIVE 0001280263 AMBARELLA, INC. 001-35667 3001 Tasman Drive Santa Clara CA 95054 408-734-8888 YUN-LUNG CHEN Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

8492 716894.64 42689006 09/10/2025 NASDAQ Common 06/15/2019 Restricted Stock Issuer N 8492 06/15/2019 Not Applicable Y The securities to be sold were acquired upon the vesting of Restricted Stock during the period of 06/15/2019 through 03/15/2022. 09/10/2025 /s/ Yun Lung Chen