Antibody-drug conjugate developer Duality Biotherapeutics Inc. debuted on the Hong Kong Stock Exchange (HKEX) with a HK$1.64 billion (US$211.4 million) IPO April 15, making it one of the biggest offerings made under the HKEX’s Chapter 18A listing regime since 2020.

Visen Pharmaceuticals Co. Ltd. announced its initial public offering (IPO) on the Hong Kong Stock exchange (HKEX) to raise roughly HKD$603.3 million (US$77.6 million) to advance its pipeline of endocrinology assets.

Antibody-drug conjugate developer Duality Biotherapeutics Inc. is gearing up for a second IPO attempt this year, having filed on Feb. 27 a new prospectus on the Hong Kong Stock Exchange. Two other biotechs – Genuine Biotech Ltd. and Cloudbreak Pharma Inc. – also are having another go at a listing in Hong Kong in 2025.

Raising $94.2 million in gross proceeds, Aardvark Therapeutics Inc. became the fifth biopharma company to list on Nasdaq so far in 2025.

Sionna Therapeutics Inc. has opened on Nasdaq in the year’s fourth IPO, this one priced at the upper end of its original per-share range at $18. The cystic fibrosis therapy developer is looking for gross proceeds of about $191 million by offering 10.58 million shares of common stock. On Feb. 7, shares (NASDAQ:SION) closed the day 39% upward at $25.