Quantum-Si Ownership & Insider Activity

Quantum-Si (QSI) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 7.4% of shares outstanding. Institutional investors hold 16.7%. Over the past 90 days, insiders made 3 sales worth $39K.

Shares Outstanding

218.884M

Shares Float

178.342M

Insider Shares Owned

16.165M

Insider % Owned

7.4%

Institutional Shares Held

36.567M

Institutional % Held

16.7%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$39K total

Net Activity

Net Selling

Net Value (90d)

-$39K

Quantum-Si Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 21, 2026	Alan Jeffrey Hawkins	PRESIDENT & CEO	SELL	29.852K	$0.76	$23K
Sep 21, 2026	Jeffry Keyes	CHIEF FINANCIAL OFFICER	SELL	7.665K	$0.76	$6K
Sep 21, 2026	Christian LaPointe	GC & CORP. SECRETARY	SELL	14.516K	$0.76	$11K
Jun 22, 2026	Christian LaPointe	GC & CORP. SECRETARY	SELL	15.588K	$0.93	$14K
Jun 22, 2026	Jeffry Keyes	CHIEF FINANCIAL OFFICER	SELL	8.233K	$0.93	$8K
Jun 22, 2026	John Vieceli	CHIEF PRODUCT OFFICER	SELL	30.223K	$0.93	$28K
Jun 22, 2026	Alan Jeffrey Hawkins	PRESIDENT & CEO	SELL	22.621K	$0.93	$21K