Profusa surges 422% during regular trading after reverse stock splitUS Stock Market UpdateAug 18, 2026 at 02:41 PMProfusa(PFSA.US) 盘中急涨,当日涨幅达422.96%,现报23.69 美元。该公司此前完成了反向拆股操作,股价在盘中大幅拉升,一度触发闪崩信号。截至发稿,该股成交量达 4993.94 万股,市值约 0.16 亿美元。