Stock Trading History of Siebert Lawrence A.

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Siebert Lawrence A. since year 2005. The trader's CIK number is 1291343. At the time of this reporting, Siebert Lawrence A. is the CEO of Chembio Diagnostics, Inc. . (stock ticker symbol CEMI). See this page for all insider trading activities at Chembio Diagnostics, Inc. .

Stock purchases, sales, and option exercises reported by insider *Siebert Lawrence A.* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-03-14	CEMI	Chembio Diagnostics, Inc.	Purchase	151,000	.15	22,650

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 Siebert Lawrence A. (CEO of Chembio Diagnostics, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.