Insider Stock Trading History of Pirnat Stephen E

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 Pirnat Stephen E since year 2005. The trader's CIK number is 1547961. At the time of this reporting, Pirnat Stephen E is the Chief Executive Officer of Clearsign Combustion Corp . (stock ticker symbol CLIR). See this page for all insider trading activities at Clearsign Combustion Corp .

Note that in the past PIRNAT STEPHEN E also reported insider trading activities as an insider of the following companies:

Stock purchases, sales, and option exercises reported by insider Pirnat Stephen E since 2005.

Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2018-02-27	CLIR	Clearsign Combustion Corp	Buy	10,000	2.25	22,500
2017-08-21	CLIR	Clearsign Combustion Corp	Buy	1,000	2.94	2,945
2015-09-18	PFIE	Flooring Zone Inc	Option Ex	19,953	.00	0
2015-11-30	CLIR	Clearsign Combustion Corp	Buy	10,636	4.99	53,073
2015-12-01	CLIR	Clearsign Combustion Corp	Buy	9,364	5.18	48,505

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 Pirnat Stephen E (Chief Executive Officer of Clearsign Combustion Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.