Windward raises $225M with Sanofi support as Rezera postpones IPO

Windward Bio priced its IPO at $17 per share, selling about 10.3 million shares and raising roughly $175 million from public investors. A concurrent $50 million private placement from Sanofi brings expected gross proceeds to $225 million.

The Basel-based biotech is developing long-acting antibody medicines for respiratory and dermatologic diseases. Its shares are set to trade on Nasdaq under ticker WWB; underwriters also have an option to buy additional shares that could bring in about $26 million more.

Boston-based Rezera, formerly NodThera, postponed its planned IPO, citing current market conditions. It had been targeting an offering of about $181–$200 million to fund development of its NLRP3 inhibitor, including plans to advance it toward Phase 3 testing.

Rezera said it would continue to consider financing options, including a future public offering. The delay highlights a selective market for biotech listings, even as Windward’s offering went ahead.

Sources:

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