Keyes Jeffry R. 4

What Happened

• Jeffry R. Keyes, Chief Financial Officer of Quantum-Si Inc. (QSI), sold a total of 8,233 shares in two open-market transactions tied to a mandatory sell-to-cover for tax withholding. On 2026-06-22 he sold 4,116 shares at $0.96 per share for $3,941, and on 2026-06-23 he sold 4,117 shares at $0.90 per share for $3,701 — total proceeds ≈ $7,642. These transactions are dispositions (sales), not purchases.

Key Details

• Transaction dates and amounts:
  • 2026-06-22: 4,116 shares sold at $0.96 — $3,941
  • 2026-06-23: 4,117 shares sold at $0.90 — $3,701
• Price detail (footnotes): weighted-average sales prices reported; sales occurred across price ranges of $0.9212–$1.005 and $0.88–$0.9291 (per filing footnotes).
• Reason: Footnote states sales were mandatory sell-to-cover to satisfy federal, state and local tax withholding on vested restricted stock units (RSUs).
• Shares owned after the transactions: not specified in the provided excerpt of the filing.
• Filing: Form 4 filed 2026-06-24 reporting transactions on 2026-06-22 and 2026-06-23; filing appears timely based on dates shown.

Context

• These were tax-withholding (sell-to-cover) sales related to RSU vesting, which are common and generally routine administrative dispositions rather than open-market investment decisions by the insider.
• Transaction code: S (sale); footnote indicates tax-withholding nature (commonly reported as F/withholding).