Skip to main content
Watch Insiders
CMPXHealthcare

Compass Therapeutics Inc (CMPX) Insider Trading

In the last 90 days, 1 Compass Therapeutics Inc (CMPX) insider reported 2 open-market purchases totaling $21,250 and no sales. The most recent open-market purchase was reported on Oct 1, 2026. Source: SEC Form 4 filings.

SEC-reported filing activity is provided for research purposes and is not investment advice.

90-day C-suite buyers
1
90-day purchase value
$21,250
Corporate buyers
1
Latest transaction
Oct 1, 2026

Executive filings

Open-market transaction history

Purchase and sale summaries are ordered by the latest reported transaction date.

Open-market insider purchase and sale transactions
DateInsider nameRoleTypeSharesPriceTotal value
Oct 1, 2026Neil LernerChief Accounting OfficerOpen Market Purchase20,000$0.92$18,400
Sep 24, 2026Neil LernerChief Accounting OfficerOpen Market Purchase2,500$1.14$2,850

Common questions

CMPX insider trading FAQ

Are CMPX insiders buying or selling?
Over the last 90 days, CMPX insiders were net buyers, reporting $21,250 of open-market purchases and $0.00 of sales.
When was the last CMPX insider purchase?
The most recent open-market purchase of Compass Therapeutics Inc stock by an insider was reported on Oct 1, 2026, one of 2 purchases in the last 90 days.
Where does CMPX insider trading data come from?
Watch Insiders reads the SEC Form 4 filings that Compass Therapeutics Inc officers, directors, and 10% owners submit to EDGAR, and refreshes this page daily.