Assembly Biosciences Ownership & Insider Activity

Assembly Biosciences (ASMB) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 13.4% of shares outstanding. Institutional investors hold 17.4%.

Shares Outstanding

20.361M

Shares Float

15.296M

Insider Shares Owned

2.719M

Insider % Owned

13.4%

Institutional Shares Held

3.547M

Institutional % Held

17.4%

Ownership Breakdown

Net Insider Activity by Month

Assembly Biosciences Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Oct 30, 2026	Jeanette Bjorkquist	PFO AND PAO	GRANT	3.113K	$19.62	$14K
Oct 30, 2026	Nicole White	CHIEF MANUFACTURING OFFICER	GRANT	11.112K	$19.62	$51K
Oct 30, 2026	Anuj Gaggar	CHIEF MEDICAL OFFICER	GRANT	11.112K	$19.62	$51K
Oct 30, 2026	Jason Okazaki	CEO AND PRESIDENT	GRANT	32.178K	$19.62	$122K
Jun 17, 2026	Jeanette Bjorkquist	PFO AND PAO	SELL	29.000	$23.25	$674