🟢 QuantumSi is trading 5% up today with no clear company-specific catalyst

QuantumSi is trading at $0.80, up 5.10% on September 24, 2026, with no clear company-specific catalyst explaining the move.

• The company scheduled a New York Proteus roadshow event for September 24.
• Recent insider sales were mandatory sell-to-cover transactions, not discretionary selling signals.
• Broader biotech sentiment is negative, so the gain does not align cleanly with sector or market direction.