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CMPX - Compass Therapeutics, Inc.

Insider Purchase by Lerner Neil (CHIEF ACCOUNTING OFFICER)

1 Month
After Trade
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Trade Summary

3 days ago, Lerner Neil, serving as CHIEF ACCOUNTING OFFICER at Compass Therapeutics, Inc. (CMPX), purchased 15,000 shares at $1.89 per share, for a total transaction value of $28,350.00. Following this transaction, Lerner Neil now holds 397,500 shares of CMPX.

This purchase represents a 4.00% increase in Lerner Neil's stake in the company. This is considered a medium-conviction trade.

The trade was executed on Wednesday, April 29, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, April 30, 2026, 1 day after the trade was made.

Compass Therapeutics, Inc. operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.

Lerner Neil

Lerner Neil

CHIEF ACCOUNTING OFFICER

Neil Lerner, CPA, MIM, is the Senior Vice President and Chief Accounting Officer at Compass Therapeutics, Inc. (NASDAQ: CMPX), a position he has held since 2024 [[1]](https://in.marketscreener.com/business-leaders/NEIL-LERNER-05Y7F9-E/biography/)[[3]](https://www.compasstherapeutics.com/about/). He brings extensive financial and accounting expertise spanning over two decades, having started his career in 1998 [[4]](https://www.signalhire.com/profiles/neil-lerner's-email/16645684). Prior to joining Compass Therapeutics, Lerner served as Chief Financial Officer, Treasurer, and Vice President of Finance at Psychemedics Corporation from 2010 to 2020 [[1]](https://in.marketscreener.com/business-leaders/NEIL-LERNER-05Y7F9-E/biography/). His earlier career includes roles as Controller at MasTec, Inc. and Atlas TMS, as well as Director of Operational Accounting at Beacon Roofing Supply, Inc., and Plant Controller at Johnson & Johnson Consumer BV [[1]](https://in.marketscreener.com/business-leaders/NEIL-LERNER-05Y7F9-E/biography/). Lerner holds an undergraduate degree from the University of Colorado and a graduate degree (MIM) from the University of Denver [[1]](https://in.marketscreener.com/business-leaders/NEIL-LERNER-05Y7F9-E/biography/). As of April 2025, he held direct ownership of 320,000 shares in Compass Therapeutics following a significant stock purchase, demonstrating confidence in the company [[2]](https://www.investing.com/news/insider-trading-news/compass-therapeutics-chief-accounting-officer-acquires-28400-in-stock-93CH-3974064). Based in Easton, Massachusetts, Lerner has built a robust professional network across multiple industries and continues to play a key role in the financial oversight of the biopharmaceutical company [[6]](https://rocketreach.co/neil-lerner-email_8388380).

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Trade Price

$1.89

Quantity

15,000

Total Value

$28,350.00

Shares Owned

397,500

Trade Date

Wednesday, April 29, 2026

3 days ago

SEC Filing Date

Thursday, April 30, 2026

Filed 1 day after trade

HEALTHCAREBIOTECHNOLOGY

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