SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Nath Prem

(Last)

(First)

(Middle)

ASCENT SOLAR TECHNOLOGIES, INC.

12300 GRANT STREET

(Street)

THORNTON

80241

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Ascent Solar Technologies, Inc. [ ASTI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP of Production Operations

3. Date of Earliest Transaction (Month/Day/Year)
12/31/2009

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	12/31/2009		M		7,500⁽¹⁾	A	$0.00	136,167⁽¹⁾	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Unit	$0.00	12/31/2009		M			7,500⁽¹⁾	12/31/2009	⁽¹⁾	Common Stock	7,500⁽¹⁾	$0.00	52,500⁽¹⁾	D

Explanation of Responses:

1. Effective 1/15/10, Dr. Prem Nath will retire and resign as an employee of the Issuer. He will continue to serve in a consulting capacity. In connection with Dr. Nath's resignation, 7500 of the 15000 RSUs eligible to vest on December 31, 2009 are deemed vested. Contingent upon his continued service to, and his performance of obligations under agreements with, the Issuer, Dr. Nath also continues to hold the following unvested derivative securities: 7500 RSUs vest 7/31/10; 10000 RSUs vest 12/31/10; 10000 RSUs vest 6/30/11; options to purchase 12500 shares vest 1/1/11; options to purchase 12500 shares vest 6/30/11. Dr. Nath also holds the following vested, but unexercised, securities: options to purchase 66667 shares that expire 7/31/16; options to purchase 12000 shares that expire 12/3/17; options to purchase 50000 shares that expire 12/2/18. All unvested derivative securities not listed above are forfeited by Dr. Nath in connection with his retirement.

	David C. Wang, as attorney-in-fact for Prem Nath	01/05/2010
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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