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

Feb 21, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ascent Solar Technologies, Inc. (ASTI)
CIK: 0001350102
Period of Report: 2008-02-20

Reporting Person: Foster Matthew (President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-02-20	Common Stock	M	5000	$4.25	Acquired	110000	Direct
2008-02-20	Common Stock	S	280	$15.11	Disposed	109720	Direct
2008-02-20	Common Stock	S	300	$15.12	Disposed	109420	Direct
2008-02-20	Common Stock	S	300	$15.19	Disposed	109120	Direct
2008-02-20	Common Stock	S	875	$15.22	Disposed	108245	Direct
2008-02-20	Common Stock	S	325	$15.23	Disposed	107920	Direct
2008-02-20	Common Stock	S	800	$15.27	Disposed	107120	Direct
2008-02-20	Common Stock	S	200	$15.28	Disposed	106920	Direct
2008-02-20	Common Stock	S	200	$15.29	Disposed	106720	Direct
2008-02-20	Common STock	S	500	$15.33	Disposed	106220	Direct
2008-02-20	Common Stock	S	320	$15.34	Disposed	105900	Direct
2008-02-20	Common Stock	S	400	$15.40	Disposed	105500	Direct
2008-02-20	Common Stock	S	200	$15.41	Disposed	105300	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2008-02-20	Common Stock Option (Right to Buy)	$4.25	M	5000	Disposed	2016-02-27	Common Stock (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	230	Indirect

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 June 26, 2007.

F2: Mr. Foster's spouse also holds 430 Class B warrants.

F3: Of the remaining unvested options in this grant, options to purchase 14,286 shares vest on March 31, 2008 and September 30, 2008, and options to purchase 14,284 shares vest on March 31, 2009.

F4: Following this transaction, Mr. Foster holds the following derivative securities: vested options (or options that will vest within 60 days) to purchase 46,430 shares of common stock that expire February 27, 2016; vested options to purchase 10,000 shares of common stock that expire on November 18, 2015; unvested options to purchase 28,570 shares of common stock that expire February 27, 2016; unvested options to purchase 10,000 shares of common stock that expire on November 18, 2015; and unvested options to purchase 9,000 shares of common stock that expire on December 3, 2017.