MBX Biosciences raises $187.5M via public offering of 11.1M shares at $18.00

MBX Biosciences, Inc.

Offering of 11,108,055 shares at $18.00 per share; underwriters have 30-day option for up to 1,666,208 additional shares.
Net proceeds of $187.5M; funds to advance three clinical-stage programs plus discovery R&D and corporate purposes.
Underwriting agreement with J.P. Morgan and Jefferies as representatives; offering closed September 26, 2025.
Registration statements on Form S-1 and S-1MEF became effective September 24, 2025.

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