Gossamer Bio shares are trading higher after a pre‑NDA meeting and FDA minutes outlined a path to a September 2026 NDA filing for seralutinib in PAH. The company also regained global rights to the drug and won shareholder approval for a note exchange and reverse split to bolster its capital structure.

Gossamer Bio Slides as $250M Financing Hinges on FDA Milestones

Gossamer Bio Financing could provide up to $250 million, with much of the funding tied to seralutinib FDA milestones.

Gossamer Bio shares are trading higher after the company announced that it has entered into a securities purchase agreement for a private placement financing to provide up to $250 million in aggregate gross proceeds.

Gossamer Bio Enters Into Securities Purchase Agreement For Up to $250M Structured Private Placement

– $150 Million of Committed Capital: $25 Million Funded Upfront at Initial Closing, Plus an Additional $125 Million that Funds Upon FDA Acceptance of the Seralutinib NDA in PAH –– Potential for Up to an Additional $100

8-K filing — Gossamer Bio, Inc. (GOSS)

Filed: 2026-08-21 AccNo: 0001728117-26-000077 Size: 1 MB Item 1.01: Entry into a Material Definitive Agreement Item 3.02: Unregistered Sales of Equity Securities Item 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year Item 7.01: Regulation FD Disclosure Item 9.01: Financial Statements and Exhibits