Compass Therapeutics Inc. (CMPX) Insider Trading

Last 12 months

Insiders bought $97k on the open market and sold nothing.

Net open-market

+$97k

4 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

2 / 0

executives and directors

Last open-market buy

Oct 2026

Oct 1, 2026

Get an email when CMPX's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 1	Neil Lerner Chief Accounting Officer	Bought	20,000	$0.92	$18k	5.0%	Form 4
Sep 24	Neil Lerner Chief Accounting Officer	Bought	2,500	$1.14	$3k	0.6%	Form 4
Apr 29	Neil Lerner Chief Accounting Officer	Bought	15,000	$1.89	$28k	3.9%	Form 4
Apr 29	Jonathan Anderman General Counsel	Bought	25,000	$1.89	$47k	15%	Form 4
May 27, 2025	Thomas J. Schuetz CHIEF EXECUTIVE OFFICER	Bought	10,000	$2.11	$21k	0.2%	Form 4
Apr 9, 2025	Carl L Gordon Director	SoldNo plan	3,571,428	$1.59	$5.68M	100%	Form 4
Apr 9, 2025	Orbimed Capital GP VI LLC Large holder	SoldNo plan	3,571,428	$1.59	$5.68M	100%	Form 4
Apr 7, 2025	Jonathan Anderman Gen Counsel & Corporate Sec	Bought	20,000	$1.54	$31k	2000%	Form 4
Apr 7, 2025	Neil Lerner CHIEF ACCOUNTING OFFICER	Bought	20,000	$1.42	$28k	6.7%	Form 4

Oct 1
Neil Lerner
Chief Accounting Officer · bought 20,000 at $0.92
$18k
5.0% of stake
Sep 24
Neil Lerner
Chief Accounting Officer · bought 2,500 at $1.14
$3k
0.6% of stake
Apr 29
Neil Lerner
Chief Accounting Officer · bought 15,000 at $1.89
$28k
3.9% of stake
Apr 29
Jonathan Anderman
General Counsel · bought 25,000 at $1.89
$47k
15% of stake
May 27, 2025
Thomas J. Schuetz
CHIEF EXECUTIVE OFFICER · bought 10,000 at $2.11
$21k
0.2% of stake
Apr 9, 2025No plan
Carl L Gordon
Director · sold 3,571,428 at $1.59
$5.68M
100% of stake
Apr 9, 2025No plan
Orbimed Capital GP VI LLC
Large holder · sold 3,571,428 at $1.59
$5.68M
100% of stake
Apr 7, 2025
Jonathan Anderman
Gen Counsel & Corporate Sec · bought 20,000 at $1.54
$31k
2000% of stake
Apr 7, 2025
Neil Lerner
CHIEF ACCOUNTING OFFICER · bought 20,000 at $1.42
$28k
6.7% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch CMPX, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in CMPX's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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