1. Corporate Officers - L
2. Lerner Neil

Insider Trading History of Lerner Neil

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Lerner Neil since 2011. This trader's CIK number is 1505148. At the time of last reporting, Lerner Neil was the CHIEF ACCOUNTING OFFICER of Compass Therapeutics, Inc.. (stock ticker symbol CMPX). Also see all insider trading activities at Compass Therapeutics, Inc..

Note that in the past Lerner Neil also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Compass Therapeutics, Inc. (CMPX) by Lerner Neil

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2025	CMPX	20,000	$28,400	0	$0	0	$0

Yearly summary of insider trading at Psychemedics Corp (PMD) by Lerner Neil

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2019	PMD	0	$0	9,057	$136,779	0	$0
2018	PMD	0	$0	4,892	$98,242	0	$0
2016	PMD	0	$0	3,000	$74,250	0	$0
2015	PMD	3,000	$30,960	0	$0	0	$0
2012	PMD	2,500	$24,500	0	$0	0	$0
2011	PMD	7,895	$77,190	0	$0	0	$0

Insider trading activities at 2 companies by Lerner Neil:

1. Compass Therapeutics, Inc. (CMPX)

2. Psychemedics Corp (PMD)

Table 1. Insider trading of Compass Therapeutics, Inc. (CMPX) by Lerner Neil

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2025-04-07	CMPX	Buy	20,000	1.42	28,400

Table 2. Insider trading of Psychemedics Corp (PMD) by Lerner Neil

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2019-03-12	PMD	Sale	1,412	15.06	21,264
2019-03-11	PMD	Sale	7,645	15.11	115,515
2018-05-21	PMD	Sale	3,013	20.14	60,681
2018-05-22	PMD	Sale	1,879	19.99	37,561
2016-11-18	PMD	Sale	3,000	24.75	74,250
2015-09-10	PMD	Buy	3,000	10.32	30,960
2012-06-15	PMD	Buy	2,500	9.80	24,500
2011-05-25	PMD	Buy	5,895	10.01	59,008
2011-03-17	PMD	Buy	2,000	9.09	18,182

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Lerner Neil (CHIEF ACCOUNTING OFFICER of Compass Therapeutics, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

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