Senti Biosciences is trading 6.4% up in after-hours trading at $0.33; no fresh company announcement explaining the rebound was identified. - The regular-session close on September 28, 2026 was $0.31, down 5.86%. - A September 24 SEC prospectus registered up to 25,555,024 shares for resale by securityholders. Senti receives no proceeds; the potential supply overhang is not a confirmed explanation for the rise. - Broader markets fell amid oil-price and Treasury-yield concerns, so the gain does not clearly track that backdrop.