Stock Trading History of Nath Prem

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 Nath Prem since year 2005. The trader's CIK number is 1371486. At the time of this reporting, Nath Prem is the Sr Vice Pres of Manufacturing of Ascent Solar Technologies, Inc. (stock ticker symbol ASTI).

Stock purchases, sales, and option exercises reported by insider *Nath Prem* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-01-14	ASTI	Ascent Solar Technologies, Inc.	Option Exercise	3,333	2.73	9,099
2008-01-14	ASTI	Ascent Solar Technologies, Inc.	Sale	3,333	22.13	73,774
2007-12-31	ASTI	Ascent Solar Technologies, Inc.	Option Exercise	5,000	2.73	13,650
2007-12-31	ASTI	Ascent Solar Technologies, Inc.	Sale	5,000	25.60	128,022
2007-12-17	ASTI	Ascent Solar Technologies, Inc.	Option Exercise	5,000	2.73	13,650
2007-12-17	ASTI	Ascent Solar Technologies, Inc.	Sale	5,000	20.11	100,529
2007-12-03	ASTI	Ascent Solar Technologies, Inc.	Sale	2,954	16.42	48,513
2007-12-03	ASTI	Ascent Solar Technologies, Inc.	Option Exercise	5,000	2.73	13,650
2007-12-03	ASTI	Ascent Solar Technologies, Inc.	Sale	2,046	16.73	34,229
2007-11-19	ASTI	Ascent Solar Technologies, Inc.	Sale	4,234	16.61	70,333
2007-11-19	ASTI	Ascent Solar Technologies, Inc.	Option Exercise	5,000	2.73	13,650
2007-11-19	ASTI	Ascent Solar Technologies, Inc.	Sale	766	16.81	12,875
2007-11-05	ASTI	Ascent Solar Technologies, Inc.	Option Exercise	5,000	2.73	13,650
2007-11-05	ASTI	Ascent Solar Technologies, Inc.	Sale	5,000	20.26	101,293
2007-10-22	ASTI	Ascent Solar Technologies, Inc.	Sale	5,000	17.02	85,094
2007-10-22	ASTI	Ascent Solar Technologies, Inc.	Option Exercise	5,000	2.73	13,650

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 Nath Prem (Sr Vice Pres of Manufacturing of Ascent Solar Technologies, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.