Washington, D.C. 20549


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB Number: 3235-0287
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hours per response: 0.5
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*
Clean Earth Acquisitions Sponsor LLC

(Last) (First) (Middle)


(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Alternus Clean Energy, Inc. [ ALCE ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
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
Rule 10b5-1(c) Transaction Indication

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
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)
Code V Amount (A) or (D) Price
Common Stock 12/22/2023 J(1) 7,666,667 A (2) 8,556,667 D(3)
Common Stock 12/22/2023 J(1) 225,000 A (4) 8,781,667 D(3)
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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Warrants to purchase Common Stock $11.5 12/22/2023 P(5) 445,000 (5) (5) Common Stock 445,000 (5) 445,000 D(3)
Explanation of Responses:
1. Represents securities acquired in connection with the transactions consummated on December 22, 2023 pursuant to that certain Business Combination Agreement, dated October 12, 2022 (as it has been and may be amended, supplemented or otherwise modified from time to time, the "Business Combination Agreement"), by and among Alternus Clean Energy, Inc. (f/k/a Clean Earth Acquisitions Corp.) (the "Issuer"), Alternus Energy Group Plc, , and Clean Earth Acquisitions Sponsor LLC ("Sponsor ") (the "Business Combination").
2. In connection with the closing of the Business Combination, each share of Issuer's Class B common stock issued and outstanding immediately prior to the effective time of the closing of the Business Combination was cancelled and converted into the right to receive the number of shares of common stock, par value $0.0001, per share of the Issuer (the "Common Stock") of the Issuer equal to an exchange ratio calculated at closing (the "Common Stock Exchange Ratio").
3. The Board of Managers of the reporting person are Alex Greystoke, David Saab and Martha Ross. Each of these Individuals disclaims ownership of the securities reported on this Form 4 except to the extent of his or her pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or for any other purpose.
4. Issued for conversion of promissory note with outstanding principal of $225,000 upon the closing of the Business Combination.
5. Pursuant to the Private Placement Units Purchase Agreement, Units Purchase Agreement, dated February 23, 2022, by and between the Issuer and the Sponsor, the Sponsor purchased an aggregate of 890,000 units, with each unit consisting of a right to acquire (a) one share of class A common stock and (b) one one-half of one warrant to purchase one share of class A common stock (the "Private Placement Warrants"). Upon consummation of the Business Combination, the Private Placement Warrants become exercisable beginning December 22, 2023 for one share of Common Stock at a price of $11.50 per share. The Private Placement Warrants expire on the fifth anniversary of the consummation of the Business Combination.
/s/ Alex Greystoke - Clean Earth Acquisitions Sponsor LLC, By: Alex Greystoke, Manager 01/29/2024
** 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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