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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OMB Number: 3235-0287
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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 *

CBRE Acquisition Sponsor, LLC		 2. Issuer Name and Ticker or Trading Symbol

Altus Power, Inc. [ AMPS ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    __X__ 10% Owner
_____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle)

C/O CBRE GROUP, INC., 2100 MCKINNEY AVENUE SUITE 1250		 3. Date of Earliest Transaction (MM/DD/YYYY)

3/31/2023
(Street)

DALLAS, TX 75201		 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
(City)        (State)        (Zip)
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. 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
Class A Common Stock 3/31/2023  M(2)  1811 A (1)(2)24556012 I Held through CBRE Acquisition Sponsor, LLC (3)

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 Security3. Trans. Date3A. Deemed Execution Date, if any4. 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 Date7. 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B Common Stock  (1)3/31/2023  M (2)    181125   (1) (1)Class A Common Stock 1811 (2)$0.00 905625 I Held through CBRE Acquisition Sponsor, LLC (3)
Explanation of Responses:
(1) Pursuant to the terms of the Class B common stock of the Issuer (the "Class B Common Stock"), of which an aggregate of 1,006,250 shares are currently outstanding, on the last day of each measurement period, which will occur annually over seven fiscal years following the completion of the business combination of CBRE Acquisition Holdings, Inc. with Altus Power, Inc., which occurred on December 9, 2021, an aggregate of 201,250 shares of Class B Common Stock will automatically convert, subject to adjustment, into shares of Class A Common Stock of the Issuer (the "Class A Common Stock"), pursuant to a formula based on the stock price of the Class A Common Stock, into an aggregate minimum of 2,013 shares of Class A Common Stock on each conversion date, up to an aggregate maximum of 14,596,637 shares of Class A Common Stock over such seven year period.
(2) On the last day of the measurement period ending on March 31, 2023 and pursuant to the formula referenced above, an aggregate of 201,250 shares of Class B Common Stock automatically converted into an aggregate of 2,013 shares of Class A Common Stock. Such conversion of Class B Common Stock applies to each holder of Class B Common Stock on a pro rata basis on the basis of the amounts of such Class B Common Stock held by such holder. In connection with the above, 181,125 shares of Class B Common Stock beneficially owned by the Reporting Persons were converted into 1,811 shares of Class A Common Stock.
(3) Represents securities directly held by CBRE Acquisition Sponsor, LLC ("CBRE Sponsor"). The sole member of CBRE Sponsor is CBRE Services, Inc., which is a wholly-owned subsidiary of CBRE Group, Inc., a publicly traded company.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
CBRE Acquisition Sponsor, LLC
C/O CBRE GROUP, INC.
2100 MCKINNEY AVENUE SUITE 1250
DALLAS, TX 75201		XX

CBRE SERVICES, INC.
C/O CBRE GROUP, INC.
2100 MCKINNEY AVENUE SUITE 1250
DALLAS, TX 75201		XX

CBRE GROUP, INC.
2100 MCKINNEY AVENUE SUITE 1250
DALLAS, TX 75201		XX
Signatures
CBRE ACQUISITION SPONSOR, LLC, By: /s/ Emma E. Giamartino, Name: Emma E. Giamartino, Title: Chief Financial Officer4/3/2023
**Signature of Reporting PersonDate

CBRE SERVICES, INC., By: /s/ Emma E. Giamartino, Name: Emma E. Giamartino, Title: Chief Financial Officer4/3/2023
**Signature of Reporting PersonDate

CBRE GROUP, INC., By: /s/ Emma E. Giamartino, Name: Emma E. Giamartino, Title: Chief Financial Officer4/3/2023
**Signature of Reporting PersonDate
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).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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