09:03 AM EDT, 06/03/2026 (MT Newswires) -- Gossamer Bio ( GOSS ) said Wednesday that about $181.1 million worth of its existing convertible notes was validly tendered in a previously announced exchange offer.

The offer involved exchanging its 5.00% convertible senior notes due 2027 for a pro rata portion of up to $72.0 million worth of its new 7.50% convertible senior secured first lien notes due 2030, and up to 317.6 million shares of its common stock.

Gossamer also said it is offering prefunded warrants for shareholders who own more than 9.99% of the outstanding shares.