144 0002126427 XXXXXXXX LIVE 0001967631 Jinxin Technology Holding Co 001-42287 SHENGYIN BUILDING, SHENGXIA ROAD 666 BUILDING D, FLOOR 8 PUDONG DISTRICT, SHANGHAI F4 200120 86-21-5058-2081 Jiang Jun Jason Director and Chief Operating Officer American Depositary Shares ( each representing 18 ordinary shares) Tiger Brokers (Singappre) Pte. Ltd.

1 Raffles Place, #35-61, One Raffles Place Tower 2 Singapore U0 048616

790000 355737.00 79071410 04/30/2026 NASDAQ American Depositary Shares ( each representing 18 ordinary shares) 04/02/2019 Acquired under Employee Incentive Plan as employee of the Securities Issuer Jinxin Technology Holding Company N 3111111 03/20/2019 Cashless Y Jiang Jun Jason is the UBO of Light Stream Holdings Ltd. Jiang Jun Jason plans to sell securities through Light Stream Holdings Ltd. on the filing. Light Stream Holdings Ltd. expects to sell shares from April 30, 2026, to June 30, 2026. 04/29/2026 Dandan Wu, as a duly authorized representative of Tiger Brokers (Singapore) Pte Ltd., as attorney-in-fact for client Light Stream Holdings Ltd.