X0609 4 2026-04-20 1 0002096997 Kailera Therapeutics, Inc. KLRA 0002080343 Jiangsu Hengrui Pharmaceuticals Co., Ltd. true 7 KUNLUNSHAN RD, ECON. & TECH. DEV. ZONE LIANYUNGANG JIANGSU F4 222000 CHINA 0 0 1 0 0 Common Stock 2026-04-20 4 C 0 9477719 A 9477719 D Common Stock 2026-04-20 4 C 0 2034133 A 2034133 D Common Stock 1 I By Hengrui (USA) Ltd. Series A-2 convertible preferred stock 2026-04-20 4 C 0 4968789 0 D Common Stock 9477719 0 D Series A-2 convertible non-voting preferred stock 2026-04-20 4 C 0 708814 0 D Common Stock 2034133 0 D The reported securities are directly held by Hengrui (USA) Ltd. Hengrui (USA) Ltd. is a wholly-owned subsidiary of Jiangsu Hengrui Pharmaceuticals Co., Ltd. The Series A-2 convertible preferred stock and Series A-2 convertible non-voting preferred stock (collectively, the "Preferred Stock") of the Issuer are convertible into shares of Common Stock of the Issuer at the holder's election and have no expiration date. All shares of the Preferred Stock automatically converted into shares of Common Stock immediately prior to the closing of the Issuer's initial public offering of its Common Stock. Jiangsu Hengrui Pharmaceuticals Co., Ltd. /s/ Lau Kin Chun, Financial Controller, on behalf of Jiangsu Hengrui Pharmaceuticals Co., Ltd. 2026-04-22