0000950170-24-107525.txt : 20240917 0000950170-24-107525.hdr.sgml : 20240917 20240917200529 ACCESSION NUMBER: 0000950170-24-107525 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240916 FILED AS OF DATE: 20240917 DATE AS OF CHANGE: 20240917 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Aynechi Tiba CENTRAL INDEX KEY: 0001669220 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-42272 FILM NUMBER: 241305888 MAIL ADDRESS: STREET 1: C/O NVP ASSOCIATES, LLC STREET 2: 1300 EL CAMINO REAL, SUITE 200 CITY: MENLO PARK STATE: CA ZIP: 94025 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MBX Biosciences, Inc. CENTRAL INDEX KEY: 0001776111 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 12406 HORESHAM STREET CITY: CARMEL STATE: IN ZIP: 46032 BUSINESS PHONE: 3179893100 MAIL ADDRESS: STREET 1: 12406 HORESHAM STREET CITY: CARMEL STATE: IN ZIP: 46032 4 1 ownership.xml 4 X0508 4 2024-09-16 0001776111 MBX Biosciences, Inc. MBX 0001669220 Aynechi Tiba C/O MBX BIOSCIENCES, INC. 11711 N. MERIDIAN STREET, SUITE 300 CARMEL IN 46032 true false false false false Common Stock 2024-09-16 4 C false 1386335 A 1386335 I By Norwest Venture Partners XVI, LP Common Stock 2024-09-16 4 P false 750000 16 A 2136335 I By Norwest Venture Partners XVI, LP Series B Convertible Preferred Stock 2024-09-16 4 C false 16666666 D Common Stock 1386335 0 I By Norwest Venture Partners XVI, LP Each share of Series B Convertible Preferred Stock (the "Preferred Stock") was convertible into Common Stock on a one-for-12.0221 basis at any time at the option of the holder, and automatically converted into the number of shares shown in Column 7 immediately prior to the closing of the Issuer's initial public offering on September 16, 2024. The Preferred Stock had no expiration date. The securities are directly held by Norwest Venture Partners XVI, LP ("NVP XVI"). Genesis VC Partners XVI, LLC ("Genesis XVI") is the general partner of NVP XVI and NVP Associates, LLC ("NVP Associates") is the managing member of Genesis XVI. The Reporting Person, as an officer of NVP Associates and director of the Issuer, may be deemed to share voting and dispositive power over the shares held by NVP XVI and disclaims beneficial ownership of such securities except to the extent of her pecuniary interest therein. Reflects shares purchased in the Issuer's initial public offering. /s/ Richard Bartram, attorney-in-fact 2024-09-17