Jacobson Mark L. Insider Trading Activity

Corporate InsiderCOO · CIK 1805812

Total trades

$20.2M

Total volume

May 5, 2026

Last activity

AXSM

Axsome Therapeutics, Inc.

Jacobson Mark L. has been net-selling over the last 12 months with 0 purchases and 6 sales across 1 company.

AXSM is the most-traded position with 6 trades. The largest single transaction was a sale of AXSM for $5.7M on Feb 26, 2026.

Performance Scorecard

Forward stock performance after each transaction by Jacobson Mark L.. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	—	-3.5%	33%	9
90 days	—	-25.4%	0%	7
120 days	—	-35.5%	0%	7

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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AXSM · Axsome Therapeutics, Inc.

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	Δ OWNED	ROLE
May 5, 2026	AXSM	Sell	233	$228.18	$53K	−100.0%	COO
May 4, 2026	AXSM	Sell	4,517	$227.94	$1.0M	−100.0%	COO
Feb 26, 2026	AXSM	Sell	35,378	$161.88	$5.7M	−100.0%	COO
Sep 22, 2025	AXSM	Sell	10,000	$115.96	$1.2M	−100.0%	COO
Sep 16, 2025	AXSM	Sell	5,783	$116.19	$672K	−100.0%	COO
Sep 16, 2025	AXSM	Sell	40,000	$114.23	$4.6M	−100.0%	COO
Jun 9, 2025	AXSM	Sell	25,000	$110.44	$2.8M	−81.2%	COO
May 28, 2025	AXSM	Sell	20,000	$103.45	$2.1M	−77.6%	COO
May 27, 2025	AXSM	Sell	20,673	$104.66	$2.2M	−78.1%	COO