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

Core Insights - Several small-cap biotech and healthcare stocks experienced significant gains in after-hours trading on November 28, 2025, despite a lack of new news [1] Company Summaries - BioAtla Inc. (BCAB): Shares surged 13.94% to $1.03 after closing at $0.9040, up 6.27%. The increase may be linked to financing agreements announced on November 21, including a $7.5 million advance and a Standby Equity Purchase Agreement allowing for the sale of up to $15 million in common stock at a 3% discount [2] - Metagenomi Inc. (MGX): Stock rose 5.71% to $1.85 after a 3.55% gain to $1.75 during regular trading. The movement appears driven by investor sentiment or technical factors, with no new corporate updates [3] - PAVmed Inc. (PAVM): Advanced 5.72% to $0.3900, recovering from a slight decline earlier in the day. The company reported a GAAP net loss of $6.3 million, or $(0.29) per share, with revenue dropping sharply to $5,000 from $996,000 year-over-year [4] - Precision BioSciences, Inc. (DTIL): Gained 2.94% to $5.60, building on a 6.46% rise to $5.44. The company is set to present Phase 1 data from its ELIMINATE-B trial at the Hep-DART 2025 meeting, which may be boosting investor optimism [5] - Reviva Pharmaceuticals Holdings, Inc. (RVPH): Edged up 2.04% to $0.57 after a 7.66% gain to $0.5625. The company narrowed its quarterly net loss to $4.0 million, or $0.06 per share, compared to $8.4 million, or $0.25 per share, in the prior year [6] - Sonnet BioTherapeutics Holdings, Inc. (SONN): Rose 5.11% to $3.91, recovering from a 10.47% decline earlier in the day. The company adjourned a special meeting to allow more time for voting on a proposed combination with Hyperliquid Strategies Inc. and Rorschach I LLC, with over 95% of shares voting in favor [7] - Entero Therapeutics, Inc. (ENTO): Gained 3.68% to $3.10 after a 5.28% rise to $2.99. The company announced a rebranding to GridAI Technologies Corp., effective December 1, 2025, following its acquisition of GRID AI Corp. The new ticker symbol "GRDX" will debut on the Nasdaq Capital Market [8]