Ascent Solar Technologies, Inc. — Director's Dealing 2008

Jan 3, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ascent Solar Technologies, Inc. (ASTI)
CIK: 0001350102
Period of Report: 2007-12-31

Reporting Person: Nath Prem (Sr Vice Pres of Manufacturing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-12-31	Common Stock	M	5000	$2.73	Acquired	5000	Direct
2007-12-31	Common Stock	S	100	$25.24	Disposed	4900	Direct
2007-12-31	Common Stock	S	500	$25.37	Disposed	4400	Direct
2007-12-31	Common Stock	S	500	$25.38	Disposed	3900	Direct
2007-12-31	Common Stock	S	200	$25.42	Disposed	3700	Direct
2007-12-31	Common Stock	S	100	$25.75	Disposed	3600	Direct
2007-12-31	Common Stock	S	600	$25.80	Disposed	3000	Direct
2007-12-31	Common Stock	S	500	$25.81	Disposed	2500	Direct
2007-12-31	Common Stock	S	2000	$25.83	Disposed	500	Direct
2007-12-31	Common Stock	S	500	$25.84	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-12-31	Common Stock (Right to Buy)	$2.73	M	5000	Disposed	2016-07-31	Common Stock (5000)	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 4, 2007.

F2: Of the remaining unvested options in this grant, options to purchase 33,333 shares vest on July 31, 2008, and options to purchase 33,334 shares vest on July 31, 2009.

F3: Mr. Nath also holds the following securities: vested options to purchase 3,333 shares of common stock that expire July 31, 2016; unvested options to purchase 66,667 shares of common stock that expire July 31, 2016; and unvested options to purchase 12,000 shares of common stock that expire on December 3, 2017.