Several biotech and healthcare names posted notable gains in Monday's after-hours trading session, with moves driven by earnings updates, guidance announcements, and broader investor sentiment.FibroBiologics, Inc. (FBLG) led the pack with a sharp rise of 7.68%, closing at $0.41 after hours. The stock added $0.030 despite no company-specific news being released on Monday, suggesting speculative interest or technical momentum may have fueled the move.Nyxoah SA (NYXH) advanced 3.94% to $5.28 after reporting p ...