secwatch.observer — SEC 8-K summary
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Issuer:     Gossamer Bio, Inc. (GOSS)
CIK:        0001728117
Form:       8-K
Filed at:   2026-05-18T11:06:58+00:00
Accession:  0001728117-26-000036
Event type: debt
Sentiment:  neutral
Materiality: 0.85
Item codes: 1.01, 2.02, 5.02, 7.01, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Gossamer Bio launches exchange offer for 5.00% notes; holders of 75.2% support
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- Exchange Offer: up to $72M new 7.50% Convertible Secured Notes due 2030, plus up to 317.6M common shares and 150M Purchase Warrants.
- Supporting Noteholders holding 75.2% of existing notes agree to tender and consent to indenture amendments.
- Conditions include minimum 98% participation; early settlement expected June 3, final June 18, 2026.
- Also filed Q1 2026 financial results (press release not provided in filing text).
- Stockholder proposals include increasing authorized shares from 700M to 4B and reverse stock split (1:10 to 1:150).

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1728117/000172811726000036/0001728117-26-000036-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1728117/000172811726000036/goss-20260518.htm
  HTML page:      https://secwatch.observer/filing/0001728117-26-000036

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer