Axsome Therapeutics Ownership & Insider Activity

Axsome Therapeutics (AXSM) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.3% of shares outstanding. Institutional investors hold 45.0%.

Shares Outstanding

52.381M

Shares Float

33.781M

Insider Shares Owned

160.492K

Insider % Owned

0.3%

Institutional Shares Held

23.545M

Institutional % Held

45.0%

Ownership Breakdown

Net Insider Activity by Month

Axsome Therapeutics Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 3, 2026	Mark Jacobson	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$110.80	$2.0M
Aug 5, 2026	HERRIOT TABUTEAU	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$108.57	$10.3M
Jul 1, 2026	HERRIOT TABUTEAU	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$122.60	$11.7M
Jun 10, 2026	ROGER JEFFS	—	SELL	572.000	$247.65	$142K
Jun 9, 2026	HERRIOT TABUTEAU	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$122.98	$11.7M
Jun 9, 2026	Nick Pizzie	CHIEF FINANCIAL OFFICER	SELL-OPTIONS	—	$121.80	$7.8M
Jun 8, 2026	Susan Mahony	—	SELL-OPTIONS	829.000	$241.69	$145K
Jun 8, 2026	Mark Coleman	—	SELL-OPTIONS	786.000	$249.00	$160K
May 29, 2026	Mark Coleman	—	SELL	17.537K	$229.20	$4.0M
May 4, 2026	Mark Jacobson	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$120.45	$1.0M
Apr 22, 2026	Ari Maizel	CHIEF COMMERCIAL OFFICER	SELL-OPTIONS	—	$126.57	$838K

Date	Member	Party	Chamber	Action	Amount
Jun 16, 2022	Chris Jacobs	R	House	Purchase	$15,001 - $50,000