Kiniksa Pharmaceuticals Ownership & Insider Activity

Kiniksa Pharmaceuticals (KNSA) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 1.0% of shares outstanding. Institutional investors hold 34.7%.

Shares Outstanding

78.572M

Shares Float

40.532M

Insider Shares Owned

753.993K

Insider % Owned

1.0%

Institutional Shares Held

27.242M

Institutional % Held

34.7%

Ownership Breakdown

Net Insider Activity by Month

Kiniksa Pharmaceuticals Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Jul 29, 2026	Bradley Cole	—	SELL	8.173K	$81.43	$299K
Jul 15, 2026	Michael Megna	CHIEF ACCOUNTING OFFICER	SELL-OPTIONS	1.644K	$56.62	$799K