🟢 Gossamer Bio is trading 12.21% up in pre-market as major U.S. indices gain over 0.5%

Gossamer Bio is trading 12.21% up at $12.04 as broader risk-on sentiment lifts major U.S. indices.

• The S&P 500, Nasdaq Composite, and Dow Jones were all more than 0.5% higher pre-market.
• No new company-specific announcement was identified for September 21, 2026.
• H.C. Wainwright raised its price target from $2 to $90 after the 1-for-80 reverse split, without explicitly linking the revision to the share-price move.