FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * BD1 Investment Holding, LLC 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                    __X__ 10% Owner
_____ Officer (give title below)    _____ Other (specify below)
(Last)         (First)         (Middle)
1675 SOUTH STATE STREET, SUITE B
3. Date of Earliest Transaction (MM/DD/YYYY)
12/27/2021
(Street)
DOVER, DE 19901
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person
_ X _ 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. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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)
Code V Amount (A) or (D) Price

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Unsecured convertible promissory notes (1) $0.0001  12/27/2021    S        10000000000   12/18/2020   (2) Common Stock  10000000000  $0.0001  89000000000  D   

Explanation of Responses:
(1)  On December 27, 2021, BD 1 Investment Holding, LLC ("BD1") entered into a purchase agreement to sell and assign a portion of an unsecured convertible promissory note equal to $1,000,000 in principal amount for a purchase price of $1,000,000. Following the transaction, BD1 owns two unsecured convertible promissory notes with principal amounts of $8,740,000 and $160,000, convertible at any time into 89,000,000,000 shares of Issuer's common stock at a fixed conversion price of $0.0001 per share. This joint filing on Form 4 includes Mr. Johannes Kuhn and Mrs. Ute Kuhn who are the 100% indirect owners of BD1.
(2)  The maturity date is December 18, 2025.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
BD1 Investment Holding, LLC
1675 SOUTH STATE STREET, SUITE B
DOVER, DE 19901

X

Kuhn Johannes
70-72 MUEHLENWEG
LUXEMBOURG, N4 L-2155

X

Kuhn Ute
70-72 MUEHLENWEG
LUXEMBOURG, N4 L-2155

X


Signatures
By: /s/ Todd Steadman, Manager of BD1 Investment Holding, LLC and attorney-in-fact for Johannes Kuhn and Ute Kuhn 12/29/2021
**Signature of Reporting Person Date
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