Biotech Momentum Builds In After-Hours Trading As BioAtla, Entero, And Sonnet Climb

Several small-cap biotech and healthcare stocks posted notable gains in after-hours trading on Friday, November 28, 2025, despite limited fresh news flow. Below is a roundup of the key movers.BioAtla Inc. (BCAB) shares surged in after-hours trading, climbing 13.94% to $1.03, after closing the regular session at $0.9040, up 6.27%. While there was no company-specific news on Friday, investors may still be reacting to BioAtla's November 21 announcement of financing agreements. The company entered into Pre-pai ...