Profusa (PFSA) shares fall 38.76% intraday after reverse stock split correction

Profusa (PFSA) shares fell 38.76% in intraday trading after a 1-for-4 reverse stock split effective August 18, 2026. The corporate action reduced the share count to approximately 605,000, creating a low-float environment that amplified speculative trading and triggered a post-surge correction following extreme volatility.