Gossamer Bio is trading 6.7% lower at $8.94 pre-market, with no clearly reported company-specific announcement explaining the decline.
- The stock closed at $9.58 on October 20, after gaining 13.64% in that session.
- The latest company press-release listing surfaced by search is dated October 13.
- Biotech was up 3.64% pre-market and major index futures were mixed-to-positive; no trading-volume or activity data was provided, so the reason for the drop remains unclear.