Keyes Jeffry R. 4

What Happened

• Jeffry R. Keyes, Chief Financial Officer of Quantum‑Si Inc. (QSI), sold a total of 74,763 shares in two transactions tied to the vesting of previously granted restricted stock units (RSUs). On 2026-04-20 he sold 37,382 shares at $1.01 each for $37,621, and on 2026-04-21 he sold 37,381 shares at $0.99 each for $37,194, for combined proceeds of approximately $74,815. These were sales (routine cash-generating transactions), not purchases.

Key Details

• Transaction dates and prices:
  • 2026-04-20: 37,382 shares at $1.01 — $37,621
  • 2026-04-21: 37,381 shares at $0.99 — $37,194
• Total shares sold: 74,763; total proceeds: ~$74,815.
• Shares owned after transaction: Not disclosed in this filing.
• Footnotes of note:
  • F1: These sales were mandatory sell-to-cover transactions to satisfy federal, state and local tax withholding on RSU vesting; the insider cannot change this provision.
  • F2 / F3: Weighted average sale prices reported; individual sale prices ranged from about $0.9763 to $1.05 per share. Detailed per-trade price breakdowns are available on request to the SEC staff or issuer.
• Filing timeliness: Report filed 2026-04-22 covering transactions on 2026-04-20 and 2026-04-21; appears to be filed within the standard Form 4 reporting window.

Context

• These sales were tax-withholding (sell-to-cover) actions associated with RSU vesting and are generally considered routine administrative transactions rather than direct signals of the insider’s view on the company’s stock. They differ from discretionary open-market sales where intent might be more informative.