CBAH.U / CBRE Acquisition Holdings, Inc. SAIL securities, each consisting of one share of Class A common stoc - Depositi SEC, Relazione annuale, dichiarazione di delega

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

15-12G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-39798 ALTUS POWER, INC. (Exact name of registrant as specified in

Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 15, 2025 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39798 85-3448396 (State or other jurisdiction of incorporation or organization) (C

As filed with the Securities and Exchange Commission on April 16, 2025

As filed with the Securities and Exchange Commission on April 16, 2025 Registration No.

As filed with the Securities and Exchange Commission on April 16, 2025

S-8 POS As filed with the Securities and Exchange Commission on April 16, 2025 Registration No.

As filed with the Securities and Exchange Commission on April 16, 2025

As filed with the Securities and Exchange Commission on April 16, 2025 Registration No.

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION ALTUS POWER, INC.

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ALTUS POWER, INC. 1. The name of this corporation is Altus Power, Inc. 2. The registered office in the State of Delaware is located at Suite 302, 4001 Kennett Pike, County of New Castle, Wilmington, Delaware 19807. The name of the registered agent at such address upon whom process against this corporation may be served is Maples Fidu

Altus Power Closes Transaction with TPG

Exhibit 99.1 Altus Power Closes Transaction with TPG Stamford, Conn. - April 16, 2025 - Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), a leading commercial-scale provider of clean, electric power, today announced the completion of its acquisition by TPG through its TPG Rise Climate Transition Infrastructure strategy in an all-cash transaction that valued the Company at approximat

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on April 28, 2025, pursuant to the provisions of Rule 12d2-2 (a).

AGREEMENT AND PLAN OF MERGER BY AND AMONG AVENGER PARENT, INC., AVENGER MERGER SUB, INC. ALTUS POWER, INC. FEBRUARY 5, 2025

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER BY AND AMONG AVENGER PARENT, INC., AVENGER MERGER SUB, INC. AND ALTUS POWER, INC. FEBRUARY 5, 2025 CERTAIN INFORMATION HAS BEEN REDACTED FROM THIS EXHIBIT IN ACCORDANCE WITH ITEM 601(A)(6) OF REGULATION S-K DUE TO PERSONAL PRIVACY CONCERNS. INFORMATION THAT HAS BEEN SO REDACTED FROM THIS EXHIBIT HAS BEEN MARKED WITH “[***]” TO INDICATE THE OMISSION. TABLE O

BYLAWS Altus Power, Inc. A Delaware Corporation

Exhibit 3.2 BYLAWS of Altus Power, Inc. A Delaware Corporation Table of Contents 1 Offices 1 2 Stockholders 1 3 Directors 6 4 Committees 8 5 General Provisions Relating to Meetings 9 6 Officers and Authorized Signatories 10 7 Certificates and Stockholders 12 8 Indemnification of Directors, Officers, Employees and Agents 13 9 Miscellaneous Provisions 15 10 Emergency Bylaws 16 BYLAWS of Altus Power,

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 9, 2025 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39798 85-3448396 (State or other jurisdiction of incorporation or organization) (Co

Altus Power Stockholders Approve Agreement to be Acquired by TPG

Exhibit 99.1 Altus Power Stockholders Approve Agreement to be Acquired by TPG April 9, 2025 STAMFORD, Conn.—(BUSINESS WIRE)—Altus Power, Inc. (NYSE: AMPS) (“Altus Power”) today announced that, at a special meeting of the stockholders held earlier today, Altus Power’s stockholders voted to adopt the previously announced definitive agreement for Altus Power to be acquired by TPG through its TPG Rise

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 2, 2025 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39798 85-3448396 (State or other jurisdiction of incorporation or organization) (Co

Amendment No. 4, dated February 6, 2025, to Credit Agreement, dated November 10, 2023, APACF II, LLC (the “Borrower”), APACF II HOLDINGS, LLC, as Equity Holder, Pass Equipment Co, LLC, the project companies from to time party thereto, the tax equity holdcos from time to time party thereto, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Administrative Agent and Collateral Agent, U.S. BANK NATIONAL ASSOCIATION, as Document Custodian, each lender from time to time party thereto (collectively, the “Lenders” and individually, a “Lender”) and Blackstone Asset Based Finance Advisors LP (“Blackstone”), as Blackstone representative for the Lenders

Execution Version AMENDMENT NO. 4 This Amendment No. 4, dated as of February 6, 2025 (this “Amendment”), is entered into by and among APACF II, LLC, a Delaware limited liability company (the “Borrower”), PASS EQUIPMENT CO, LLC, a Delaware limited liability company (“PASS”), APACF II HOLDINGS, LLC, a Delaware limited liability company (the “Equity Holder”), U.S. BANK TRUST COMPANY, NATIONAL ASSOCIA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.)

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

Altus Power, Inc. Announces Fourth Quarter and Full Year 2024 Financial Results

Exhibit 99.1 Altus Power, Inc. Announces Fourth Quarter and Full Year 2024 Financial Results Full Year 2024 Financial Highlights • Full year 2024 revenues of $196.3 million, a 26% increase compared to full year 2023 • GAAP net loss of $10.7 million for full year 2024, compared to net loss of $26.0 million for full year 2023 • Adjusted EBITDA* of $111.6 million for full year 2024, a 20% increase co

Subsidiaries of the Registrant.

List of Subsidiaries of Altus Power, Inc. as of December 31, 2024 Name of Subsidiary Jurisdiction of Incorporation Altus Power, LLC Delaware APA Generation, LLC Delaware APA Generation Holdings, LLC Delaware APA Finance Holdings, LLC Delaware APA Finance, LLC Delaware Altus ZS Holdings, LLC Delaware APA Finance II, LLC Delaware APA Finance III, LLC Delaware APAF III Operating, LLC Delaware APACF I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39798 Altus Power, Inc. (

Altus Power Insider Trading Policy

Altus Power, Inc. Insider Trading Policy Adopted as of August 8, 2022 1.Purpose. This Insider Trading Policy (this “Policy”) provides guidelines with respect to transactions in the securities of Altus Power, Inc. (the “Company”) and the handling of confidential information about the Company and the companies with which it does business. The Company’s Board of Directors (the “Board”) has adopted th

Amendment No. 3, dated December 16, 2024, to Credit Agreement, dated November 10, 2023, APACF II, LLC (the “Borrower”), APACF II HOLDINGS, LLC, as Equity Holder, Pass Equipment Co, LLC, the project companies from to time party thereto, the tax equity holdcos from time to time party thereto, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Administrative Agent and Collateral Agent, U.S. BANK NATIONAL ASSOCIATION, as Document Custodian, each lender from time to time party thereto (collectively, the “Lenders” and individually, a “Lender”) and Blackstone Asset Based Finance Advisors LP (“Blackstone”), as Blackstone representative for the Lenders

Execution Version AMENDMENT NO. 3 This Amendment No. 3, dated as of December 16, 2024 (this “Amendment”), is entered into by and among APACF II, LLC, a Delaware limited liability company (the “Borrower”), PASS EQUIPMENT CO, LLC, a Delaware limited liability company (“PASS”), APACF II HOLDINGS, LLC, a Delaware limited liability company (the “Equity Holder”), U.S. BANK TRUST COMPANY, NATIONAL ASSOCI

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 17, 2025 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39798 85-3448396 (State or other jurisdiction of incorporation or organization) (C

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy Statement ☐ Definitive Additional Materials ☐ Soliciting Material Pursuant to §240.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Statement ☐ Definitive Additional Materials ☐ Soliciting Material Pursuant to §240.

CALCULATION OF FILING FEE TABLES Schedule 14A (Form Type) Altus Power, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Transaction Valuation

CALCULATION OF FILING FEE TABLES Schedule 14A (Form Type) Altus Power, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Transaction Valuation Proposed Maximum Aggregate Value of Transaction Fee Rate Amount of Filing Fee Fees to Be Paid $850,915,995.00 .00015310 $130,275.24 Fees Previously Paid — — Total Transaction Valuation $130,275.24 Total Fees Due for Filing $130,275.24 Tot

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.)

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

Agreement and Plan of Merger, dated as of February 5, 2025, by and among Parent, Merger Sub and the Company.*

EX-2.1 Exhibit 2.1 AGREEMENT AND PLAN OF MERGER BY AND AMONG AVENGER PARENT, INC., AVENGER MERGER SUB, INC. AND ALTUS POWER, INC. FEBRUARY 5, 2025 CERTAIN INFORMATION HAS BEEN REDACTED FROM THIS EXHIBIT IN ACCORDANCE WITH ITEM 601(A)(6) OF REGULATION S-K DUE TO PERSONAL PRIVACY CONCERNS. INFORMATION THAT HAS BEEN SO REDACTED FROM THIS EXHIBIT HAS BEEN MARKED WITH “[***]” TO INDICATE THE OMISSION.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.)

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

Form of Voting and Support Agreement.

EX-10.1 Exhibit 10.1 FORM OF VOTING AND SUPPORT AGREEMENT This VOTING AND SUPPORT AGREEMENT, dated as of February 5, 2025 (this “Agreement”), is entered into by and among Avenger Parent, Inc., a Delaware corporation (“Parent”), Altus Power, Inc., a Delaware corporation (the “Company”), and the undersigned stockholder of the Company (the “Stockholder”)1. Capitalized terms used but not defined herei

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.)

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2025 Altus Power, Inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2025 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39798 85-3448396 (State or other jurisdiction of incorporation) (Commission File

Altus Power Announces Agreement to be Acquired by TPG

EX-99.1 Exhibit 99.1 Altus Power Announces Agreement to be Acquired by TPG Stamford, Conn.-February 6, 2025-Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), the largest owner of commercial-scale solar in the US, today announced it has entered into a definitive agreement to be acquired by TPG through its TPG Rise Climate Transition Infrastructure strategy for $5.00 per share of its

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2025 Altus Power, Inc

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 5, 2025 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39798 85-3448396 (State or other jurisdiction of incorporation) (Commiss

LIMITED POWER OF ATTORNEY

LIMITED POWER OF ATTORNEY The undersigned hereby constitutes and appoints Gioia Gentile with full power of substitution, as the undersigned’s true and lawful attorney-in-fact for the limited purpose to: 1.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39798

AMPS / Altus Power, Inc. / Encompass Capital Advisors LLC Passive Investment

SC 13G 1 encompass-amps111224.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* ALTUS POWER, INC. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 02217A102 (CUSIP Number) November 12, 2024 (Date of Event Which Requires Filing of this Statement) Check th

November 2024 Investor Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management. You should read

November 2024 Investor Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

Altus Power, Inc. Announces Third Quarter 2024 Financial Results

Altus Power, Inc. Announces Third Quarter 2024 Financial Results Third Quarter Financial Highlights •Third quarter 2024 revenues of $58.7 million, a 30% increase as compared to third quarter 2023 •GAAP net income of $8.6 million for third quarter 2024, as compared to $6.8 million for third quarter 2023 •Adjusted EBITDA* of $37.0 million for third quarter 2024, a 27% increase as compared with third

*****

November 12, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F. Street, NE Washington D.C. 20549 Attention: Jenifer Gallagher Karl Hiller Re: Altus Power, Inc. Form 10-K for the Fiscal Year ended December 31, 2023 File No. 001-39798 Dear Ms. Gallagher and Mr. Hiller: Altus Power, Inc. (the “Company”) is in receipt of the

Credit Agreement, dated as of March 26, 2024, among APA Finance IV, LLC, APA Finance IV Holdings, LLC, Blackstone Asset Based Finance Advisors LP, U.S. Bank Trust Company, National Association, U.S. Bank National Association, and the lenders party thereto

Exhibit 10.1 CREDIT AGREEMENT Dated as of March 26, 2024 among APA FINANCE IV, LLC, as the Borrower, APA FINANCE IV HOLDINGS, LLC, as the Equity Holder, BLACKSTONE ASSET BASED FINANCE ADVISORS LP, as Blackstone Representative, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Administrative Agent and Collateral Agent, U.S. BANK NATIONAL ASSOCIATION, as Document Custodian, and THE LENDERS PARTY HER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 12, 2024 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 12, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS

CERTIFICATIONS

EXHIBIT 31.3 CERTIFICATIONS I, Gregg J. Felton, certify that: 1) I have reviewed this Annual Report on Form 10-K of Altus Power, Inc.; 2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect t

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 15, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

Altus Power Announces Ongoing Review of Strategic Alternatives

FOR IMMEDIATE RELEASE Altus Power Announces Ongoing Review of Strategic Alternatives Stamford, Conn.

CERTIFICATIONS

EXHIBIT 31.4 CERTIFICATIONS I, Dustin L. Weber, certify that: 1) I have reviewed this Annual Report on Form 10-K of Altus Power, Inc.; 2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect t

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August 28, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Energy & Transportation 100 F. Street, NE Washington D.C. 20549 Attention: Jenifer Gallagher Karl Hiller Re: Altus Power, Inc. Form 10-K for the Fiscal Year ended December 31, 2023 Supplement No. 1 to Response dated August 21, 2024 File No. 001-39798 Dear Ms. Gallagher and Mr. Hiller: Refere

CERTIFICATIONS

EXHIBIT 31.4 CERTIFICATIONS I, Dustin L. Weber, certify that: 1) I have reviewed this Annual Report on Form 10-K of Altus Power, Inc.; 2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect t

Altus Power, Inc. Announces Second Quarter 2024 Financial Results

Altus Power, Inc. Announces Second Quarter 2024 Financial Results Second Quarter Financial Highlights •Second quarter 2024 revenues of $52.5 million, a 13% increase as compared to second quarter 2023 •GAAP net income of $33.1 million for second quarter 2024, as compared to $3.4 million for second quarter 2023 •Adjusted EBITDA* of $31.2 million for second quarter 2024, or a 2% increase as compared

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS POWER

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 8, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

August 8, 2024 Second Quarter Earnings Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management.

August 8, 2024 Second Quarter Earnings Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

Amendment No. 2, dated July 3, 2024, which amends the Credit Agreement, dated as of November 10, 2023. by and among APACF II, LLC (the "Borrower"), APACF II Holdings, LLC, as Equity Holder, PASS Equipment Co, LLC, U.S. Bank Trust Company, National Association, LLC, (the "Administrative Agent"), the Lenders from time to time party thereto, and Blackstone Asset based Finance Advisors, LP ("Blackstone"), as Blackstone representative (as amended by Amendment No. 1 thereto dated as of March 26, 2024)

Execution Version AMENDMENT NO. 2 This Amendment No. 2, dated as of July 3, 2024 (this “Amendment”), is entered into by and among APACF II, LLC, a Delaware limited liability company (the “Borrower”), PASS EQUIPMENT CO, LLC, a Delaware limited liability company (“PASS”), APACF II HOLDINGS, LLC, a Delaware limited liability company (the “Equity Holder”), U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION

Amendment No. 1 dated March 26, 2024, which amends the Credit Agreement, dated as of November 10, 2023. by and among APACF II, LLC (the "Borrower"), APACF II Holdings, LLC, as Equity Holder, PASS Equipment Co, LLC, U.S. Bank Trust Company, National Association, LLC, (the "Administrative Agent"), the Lenders from time to time party thereto, and Blackstone Asset based Finance Advisors, LP ("Blackstone"), as Blackstone representative

Execution Version AMENDMENT NO. 1 This Amendment No. 1, dated as of March 26, 2024 (this “Amendment”), is entered into by and among APACF II, LLC, a Delaware limited liability company (the “Borrower”), PASS EQUIPMENT CO, LLC, a Delaware limited liability company (“PASS”), APACF II HOLDINGS, LLC, a Delaware limited liability company (the “Equity Holder”), U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATI

Altus Power Announces Appointment of Investment Management Executive, Richard A. Shapiro, to the Board of Directors

Altus Power Announces Appointment of Investment Management Executive, Richard A. Shapiro, to the Board of Directors STAMFORD, CT, August 1, 2024 – Altus Power (NYSE: AMPS), the largest commercial-scale provider of clean electric power, announced today that Richard A. Shapiro has joined its Board of Directors. Shapiro will serve as chair of the Compensation Committee. “Altus Power’s position as the

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 1, 2024 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 1, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 22, 2024 Date of Report (date of earliest event reported) Altus Power, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 22, 2024 Date of Report (date of earliest event reported) Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File

Investor Presentation issued by Altus Power, Inc. dated May 14, 2024.

investordaydeck5132024

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 14, 2024 Altus Power, Inc. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 14, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission Fil

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))  ☐ Definitive Proxy S

May 9, 2024 First Quarter Earnings Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management. You

May 9, 2024 First Quarter Earnings Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (AMENDMENT NO. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 9, 2024 A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (AMENDMENT NO. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 9, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39

Assignment and Assumption Agreement by and among Altus Power, Inc., CBRE Acquisition Sponsor, LLC, and Robert Charles Bernard

ASSIGNMENT AND ASSUMPTION AGREEMENT This Assignment and Assumption Agreement (this “Agreement”) is entered into as of April 18, 2024, by and among Altus Power, Inc.

May 9, 2024 First Quarter Earnings Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management. You

May 9, 2024 First Quarter Earnings Presentation Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

Separation and Release of Claims Agreement by and between Altus Power, Inc. and its affiliates and subsidiaries, and Lars Norell, dated as of April 28, 2024

SEPARATION AND RELEASE OF CLAIMS AGREEMENT This Separation and Release of Claims Agreement (the “Agreement”) is entered into by and between Altus Power, Inc.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 9, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File

Altus Power, Inc. Announces First Quarter 2024 Financial Results

Altus Power, Inc. Announces First Quarter 2024 Financial Results First Quarter Financial Highlights •First quarter 2024 revenues of $40.7 million, a 38% increase as compared to first quarter 2023 •GAAP net income of $4.1 million for first quarter 2024, an increase as compared to $3.8 million for first quarter 2023 •Adjusted EBITDA* of $19.7 million for first quarter 2024, or a 23% increase as comp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS POWE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))  ☐ Definitive Proxy S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 26, 2024 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 26, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

Altus Power Announces CEO Transition

Altus Power Announces CEO Transition The Board of Directors has Accepted the Resignation of Lars Norell as co-CEO and Appointed Gregg Felton as sole Chief Executive Officer STAMFORD, CT.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))  ☐ Definitive Proxy S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy St

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 31, 2024 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 31, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 26, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 19, 2024 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 19, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

, 2023, by and among APA Finance III Borrower, LLC, APA Finance III Borrower Holdings, LLC, the Guarantors party thereto, Altus Power, Inc., Blackstone Asset Based Finance Advisors LP, U.S. Bank Trust Company, National Association, U.S. Bank National Association, and the Lenders party thereto, which amends the Credit Agreement, dated as of February 15, 2023, by and among the parties thereto

Execution Version AMENDMENT NO. 2 This AMENDMENT NO. 2, dated as of July 21, 2023 (this “Amendment”), is entered into by and among APA FINANCE III BORROWER, LLC, a Delaware limited liability company (the “Borrower”), APA FINANCE III BORROWER HOLDINGS, LLC, a Delaware limited liability company (the “Equity Holder”), the Guarantors party hereto, BLACKSTONE ASSET BASED FINANCE ADVISORS LP (the “Black

Altus Power, Inc. Announces Fourth Quarter and Full Year 2023 Financial Results

Altus Power, Inc. Announces Fourth Quarter and Full Year 2023 Financial Results Full Year 2023 Financial Highlights •Full year 2023 revenues of $155.2 million, a 53% increase compared to full year 2022 •GAAP net loss of $26.0 million for full year 2023, compared to net income of $52.2 million for full year 2022 •Adjusted EBITDA* of $93.1 million for full year 2023, a 59% increase compared to full

Side Letter to Purchase and Sale Agreement, by and among Project Hyperion Holdco LLC, a Delaware limited liability company (“Hyperion Holdco”), Soltage Hyperion MGTCO, LLC, a Delaware limited liability company (“Soltage Hyperion,” and together with Hyperion Holdco, “Sellers”, and each, a “Seller”), and Altus Power, LLC, a Delaware limited liability company (“Buyer”), and solely for the purposes of Section 6.12, Altus Power, Inc., a Delaware corporation (“Buyer Guarantor”), dated December 19, 2023

Execution Version Certain information, marked using “[***]”, has been excluded from the exhibit because it is both not material and is the type that the registrant treats as private or confidential.

Altus Power Clawback Policy

ALTUS POWER, INC. CLAWBACK POLICY Introduction The Board of Directors (the “Board”) of the Altus Power, Inc. (the “Company”) believes that it is in the best interests of the Company and its stockholders to create and maintain a culture that emphasizes integrity and accountability and that reinforces the Company’s pay-for-performance compensation philosophy. The Board has therefore adopted this Cla

Subsidiaries of the Registrant

List of Subsidiaries of Altus Power, Inc. as of December 31, 2023 Name of Subsidiary Jurisdiction of Incorporation Altus Power, LLC Delaware APA Generation, LLC Delaware APA Finance Holdings, LLC Delaware APA Finance, LLC Delaware Altus ZS Holdings, LLC Delaware APA Finance II, LLC Delaware APA Finance III, LLC Delaware APAF III Operating, LLC Delaware TGCOP Holdco, LLC Delaware DESRI V Acquisitio

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 14, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39798 Altus Power, Inc. (

Amendment No. 1 to Credit Agreement, dated December 22, 2023, among APA Generation, LLC, the several lenders from time to time parties thereto, Citibank, N.A., Bank of America, N.A., JPMorgan Chase Bank, N.A., KeyBank National Association and Truist Securities, Inc. and the other Letter of Credit Issuers party hereto from time to time, and Citibank, N.A., which amends the Credit Agreement dated as of December 19, 2022 by and among the parties thereto

AMENDMENT NO. 1 AND WAIVER TO CREDIT AGREEMENT AMENDMENT NO. 1 AND WAIVER TO CREDIT AGREEMENT, dated as of December 22 2023 (this “Amendment and Waiver”), by and among APA Generation, LLC, a Delaware limited liability company (the “Borrower”), Citibank, N.A., as the revolver administrative agent (the “Revolver Administrative Agent”) and each Lender (as defined below) party hereto. W I T N E S S E

Fourth Quarter and Full Year 2023 Earnings Presentation March 14, 2024 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus

Fourth Quarter and Full Year 2023 Earnings Presentation March 14, 2024 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 27, 2024 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 27, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

Altus Power Announces Appointment of CBRE Chief Sustainability Officer, Robert Bernard, to Board of Directors

For Immediate Release Altus Power Announces Appointment of CBRE Chief Sustainability Officer, Robert Bernard, to Board of Directors Stamford, Conn.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 31, 2024 Altus Power, Inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 31, 2024 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

Membership Interest Purchase Agreement, between Vitol Solar I LLC, a Delaware limited liability company (“Vitol” or “Seller”), and Altus Power, LLC, a Delaware limited liability company (“Buyer”), dated as of January 31, 2024 (incorporated by reference as Exhibit 2.1 to the Company’s Current Report on Form 8-K, filed with the SEC on January 31, 2024).

Execution Version MEMBERSHIP INTEREST PURCHASE AGREEMENT between VITOL SOLAR I LLC, as Seller, and ALTUS POWER, LLC, as Buyer, Dated as of January 31, 2024 121492392.

Altus Power Announces Acquisition of 84MW Portfolio from Vitol, Adding Thousands of Customers in New York, New Jersey, and Maine Clean electric power generated from solar arrays across the Northeast to benefit Community Solar subscribers, school dist

Altus Power Announces Acquisition of 84MW Portfolio from Vitol, Adding Thousands of Customers in New York, New Jersey, and Maine Clean electric power generated from solar arrays across the Northeast to benefit Community Solar subscribers, school districts and municipalities Stamford, Conn.

Credit Agreement, dated as of December 27, 2023, among the Borrower, the lenders party thereto, including Goldman Sachs Asset Management and CPPIB Credit Investments III Inc., a subsidiary of Canada Pension Plan Investment Board (collectively, the “Lenders”) and Wilmington Trust, National Association, as administrative agent (incorporated by reference as Exhibit 10.1 to the Company’s Current Report on Form 8-K, filed with the SEC on January 2, 2024)

Exhibit 10.1 Execution Version THE LOANS ARE ISSUED WITH ORIGINAL ISSUE DISCOUNT FOR U.S. FEDERAL INCOME TAX PURPOSES. FOR INFORMATION REGARDING THE ISSUE PRICE, THE TOTAL AMOUNT OF ORIGINAL ISSUE DISCOUNT, THE ISSUE DATE AND THE YIELD TO MATURITY FOR THE LOANS, PLEASE CONTACT DUSTIN WEBER, CHIEF FINANCIAL OFFICER, (203) 698-0090 $100,000,000 CREDIT AGREEMENT Dated as of December 27, 2023 Among AP

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 27, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

Altus Power Announces Financing from Goldman Sachs and CPP Investments First Corporate Term Loan Offers Additional Flexibility to Fund Future Growth Plans

Exhibit 99.1 For Immediate Release: Altus Power Announces Financing from Goldman Sachs and CPP Investments First Corporate Term Loan Offers Additional Flexibility to Fund Future Growth Plans Stamford, Conn.—January 2, 2024 – Altus Power, Inc. (NYSE: AMPS), the leading commercial-scale provider of clean electric power, today announced the closing of secured credit facility having a principal loan a

Altus Power Announces Closing of 121 Megawatts in Solar Assets from Basalt and Soltage Expands its presence in the Southeast

For Immediate Release Altus Power Announces Closing of 121 Megawatts in Solar Assets from Basalt and Soltage Expands its presence in the Southeast Stamford, Conn.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 20, 2023 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 20, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

Purchase and Sale Agreement, by and among Project Hyperion Holdco LLC, a Delaware limited liability company (“Hyperion Holdco”), Soltage Hyperion MGTCO, LLC, a Delaware limited liability company (“Soltage Hyperion,” and together with Hyperion Holdco, “Sellers”, and each, a “Seller”), and Altus Power, LLC, a Delaware limited liability company (“Buyer”), and solely for the purposes of Section 6.12, Altus Power, Inc., a Delaware corporation (“Buyer Guarantor”), dated as of October 27, 2023 (incorporated by reference as Exhibit 2.1 to the Company's Current Report on Form 8-K, filed with the SEC on December 21, 2023).

Execution Version PURCHASE AND SALE AGREEMENT between PROJECT HYPERION HOLDCO LP and SOLTAGE HYPERION MGTCO, LLC, as Sellers, and ALTUS POWER, LLC, as Buyer and Solely for the purposes of Section 6.

Amendment No. 3 to Credit Agreement, dated December 20, 2023, among APA Finance III Borrower, LLC, APA Finance III Borrower Holdings, LLC, Blackstone Asset Based Finance Advisors LP, U.S. Bank Trust Company, National Association, U.S. Bank National Association, and the lenders party thereto (incorporated by reference as Exhibit 10.1 to the Company’s Current Report on Form 8-K, filed with the SEC on December 21, 2023)

Execution Version AMENDMENT NO. 3 This AMENDMENT NO. 3, dated as of December 20, 2023 (this “Amendment”), is entered into by and among APA FINANCE III BORROWER, LLC, a Delaware limited liability company (the “Borrower”), APA FINANCE III BORROWER HOLDINGS, LLC, a Delaware limited liability company (the “Equity Holder”), the Guarantors party hereto, BLACKSTONE ASSET BASED FINANCE ADVISORS LP (the “B

Class A Note, dated December 20, 2023, by APA Finance III Borrower, LLC, in favor of Security Life of Denver Insurance Company (incorporated by reference as Exhibit 10.2 to the Company's Current Report on Form 8-K, filed with the SEC on December 21, 2023).

LENDER: Security Life of Denver Insurance Company PRINCIPAL AMOUNT: $19,195,000.00 PPN: 00197@AA9 NUMBER: A-4 CLASS A NOTE New York, New York December 20, 2023 FOR VALUE RECEIVED, the undersigned, APA FINANCE III BORROWER, LLC a Delaware limited liability company (the “Borrower”), hereby promises to pay to the Lender set forth above (the “Lender”) or its registered assigns, in lawful money of the

Credit Agreement, dated November 10, 2023, APACF II, LLC (the “Borrower”), APACF II HOLDINGS, LLC, as Equity Holder, Pass Equipment Co, LLC, the project companies from to time party thereto, the tax equity holdcos from time to time party thereto, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Administrative Agent and Collateral Agent, U.S. BANK NATIONAL ASSOCIATION, as Document Custodian, each lender from time to time party thereto (collectively, the “Lenders” and individually, a “Lender”) and Blackstone Asset Based Finance Advisors LP (“Blackstone”), as Blackstone representative for the Lenders. (incorporated by reference as Exhibit 10.1 to the Company’s Current Report on Form 8-K, filed with the SEC on November 13, 2023)

Execution Version CREDIT AGREEMENT among APACF II, LLC, as Borrower, APACF II HOLDINGS, LLC, as the Equity Holder, PASS EQUIPMENT CO, LLC, Each of the Project Companies from Time to Time Parties Hereto, Each of the Tax Equity HoldCos from Time to Time Parties Hereto, The Several Lenders from Time to Time Parties Hereto, U.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS

Altus Power, Inc. Announces Third Quarter 2023 Financial Results

Altus Power, Inc. Announces Third Quarter 2023 Financial Results Third Quarter Financial Highlights •Third quarter 2023 revenues of $45.1 million, an increase of 48% over third quarter 2022 •GAAP net income of $6.8 million for third quarter 2023, an increase of $103 million over third quarter 2022 •Adjusted EBITDA* of $29.1 million for third quarter 2023, an increase of 50% over third quarter 2022

Third Quarter Earnings Presentation November 13, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s managemen

Third Quarter Earnings Presentation November 13, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

Altus Power Announces New Construction Facility Construction Facility Provided by Insurance Companies to fund Altus Power Assets During Construction

Altus Power Announces New Construction Facility Construction Facility Provided by Insurance Companies to fund Altus Power Assets During Construction STAMFORD, Conn.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 10, 2023 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 10, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 13, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 1, 2023 Altus Power, Inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 1, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

Altus Power, Inc. Announces Appointment of Tina Chan Reich to Board of Directors

Altus Power, Inc. Announces Appointment of Tina Chan Reich to Board of Directors STAMFORD, CT, November 1, 2023 – Altus Power, Inc. (NYSE: AMPS), a leading commercial-scale provider of clean electric power, announced today that Tina Chan Reich has joined its Board of Directors. Ms. Reich will serve as a member of both the Audit Committee and the Nominating and Corporate Governance Committee. “Altu

Letter of Deloitte & Touche LLP dated as of August

Exhibit 16.1 August 31, 2023 Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549-7561 Dear Sirs/Madams: We have read Item 4.01 of Altus Power, Inc.’s Form 8-K dated August 31, 2023, and have the following comments: 1.We agree with the statements made in paragraphs 2, 3, 4, 5, 6 and 7 therein. 2.We have no basis on which to agree or disagree with the statements made in para

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 31, 2023 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 31, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 16, 2023 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 16, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

Second Quarter Earnings Presentation August 14, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management

final23q2altuspowerearni Second Quarter Earnings Presentation August 14, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS POWER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 14, 2023 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 14, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

Altus Power, Inc. Announces Second Quarter 2023 Financial Results

Altus Power, Inc. Announces Second Quarter 2023 Financial Results Second Quarter Financial Highlights •Second quarter 2023 revenues of $46.5 million •GAAP net income of $3.4 million for second quarter 2023 •Adjusted EBITDA* of $30.6 million for second quarter 2023 •Adjusted EBITDA margin* of 66% for second quarter 2023 Recent Business Highlights •Executed exclusive agreement with High Street Logis

Amendment No. 1, dated as of June 15, 2023, by and among APA Finance III Borrower, LLC, APA Finance III Borrower Holdings, LLC, the Guarantors party thereto, Altus Power, Inc., Blackstone Asset Based Finance Advisors LP, U.S. Bank Trust Company, National Association, U.S. Bank National Association, and the Lenders party thereto, which amends the Credit Agreement, dated as of February 15, 2023, by and among the parties thereto (incorporated by reference as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the Quarter Ended June 30, 2023, filed with the SEC on August 14, 2023)

EXHIBIT 10.1 EXECUTION VERSION AMENDMENT NO. 1 This AMENDMENT NO. 1, dated as of June 15, 2023 (this “Amendment”), is entered into by and among APA FINANCE III BORROWER, LLC, a Delaware limited liability company (the “Borrower”), APA FINANCE III BORROWER HOLDINGS, LLC, a Delaware limited liability company (the “Equity Holder”), the Guarantors party hereto, ALTUS POWER, INC., a Delaware corporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 15, 2023 Altus Power, Inc. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 15, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission Fi

Altus Power, Inc. Secures Capital to Finance Additional 35 Megawatts of Operating Assets

Altus Power, Inc. Secures Capital to Finance Additional 35 Megawatts of Operating Assets STAMFORD, CT, June 20, 2023 – Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced that it has secured an incremental $47 million in capital from Blackstone. This incremental debt will provid

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 22, 2023 Date of Report (date of earliest event reported) Altus Power, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 May 22, 2023 Date of Report (date of earliest event reported) Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File

Altus Power, Inc. Announces First Quarter 2023 Financial Results

Altus Power, Inc. Announces First Quarter 2023 Financial Results First Quarter Financial Highlights •First Quarter 2023 revenues of $29.4 million, a 53% increase as compared to first quarter 2022 •GAAP net income of $3.8 million for first quarter 2023, a decrease as compared to $60.1 million for first quarter 2022, primarily as a result of changes in non-cash remeasurement of alignment shares •Adj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS POWE

First Quarter Earnings Presentation May 15, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management. Yo

a1q23earningsslides51523 First Quarter Earnings Presentation May 15, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 15, 2023 Altus Power, Inc. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 15, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission Fil

Independent Auditors' Report

Exhibit 99.1 Independent Auditors' Report To the Member of Portfolio A Financing (Fund III), LLC: Opinion We have audited the financial statements of Portfolio A Financing (Fund III), LLC (the Company), which comprise the statement of assets, liabilities and member’s capital, including the schedule of investments, as of December 31, 2021, and the related statements of operations, changes in member

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.2 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Introduction On February 15, 2023, Altus Power, Inc. (“Altus”) closed its acquisition of APAF III Operating LLC (“APAF III”) pursuant to which Altus acquired certain renewable energy project assets (the “Acquisition”) from private equity funds managed by True Green Capital Management, LLC (“True Green”) for an adjusted cash

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 15,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 15, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A 1 altusapril122023xannualpr.htm DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as perm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))  ☐ Definitive Proxy S

& Co., Nomura Securities International

Exhibit 1.1 Execution Version ALTUS POWER, INC. Shares of Class A common stock, par value $0.0001 per share Controlled Equity OfferingSM Sales Agreement April 6, 2023 Cantor Fitzgerald & Co. 499 Park Avenue New York, NY 10022 Nomura Securities International, Inc. Worldwide Plaza 309 West 49th Street New York, NY 10019 Truist Securities, Inc. 3333 Peachtree Road NE, 11th Floor Atlanta, GA 30326 Lad

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 6, 2023 Altus Power, Inc. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 6, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission Fi

Up to $200,000,000 Class A Common Stock

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-269337 PROSPECTUS SUPPLEMENT (To Prospectus dated February 1, 2023) Up to $200,000,000 Class A Common Stock We have entered into a Controlled Equity OfferingSM Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co., Nomura Securities International, Inc., and Truist Securities, Inc. (each, an “Agent,” and co

Amendment dated December 9, 2022 to Commercial Collaboration Agreement dated July 12, 2021 by and between Altus Power, LLC and CBRE, Inc. (incorporated by reference as Exhibit 10.23 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2022, filed with the SEC on March 30, 2023)

AMENDMENT TO COMMERCIAL COLLABORATION AGREEMENT This Amendment to the COMMERCIAL COLLABORATION Agreement, dated as of December 9, 2022 (this “Amendment”), is entered into between CBRE, Inc.

Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39798 Altus Power, Inc. (

Agency Development and Project Management Services Agreement by and between Park Avenue Solar Solutions, LLC and CBRE, Inc. (“CBRE”), dated as of June 13, 2022 (incorporated by reference as Exhibit 10.22 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2022, filed with the SEC on March 30, 2023)

Master Project Management Services Agreement THIS PROJECT MANAGEMENT SERVICES AGREEMENT (this “Agreement”) is made as of June 13, 2022 by and between Park Avenue Solar Solutions, LLC, a Delaware limited liability company (“Client”), and CBRE, INC.

Subsidiaries of the Registrant

List of Subsidiaries of Altus Power, Inc. as of December 31, 2022 Name of Subsidiary Jurisdiction of Incorporation Altus Power, LLC Delaware APA Generation, LLC Delaware APA Finance Holdings, LLC Delaware APA Finance, LLC Delaware Altus ZS Holdings, LLC Delaware APA Finance II, LLC Delaware TGCOP Holdco, LLC Delaware DESRI V Acquisition Holdings, LLC Delaware

Year End 2022 Earnings Presentation March 30, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management.

a4q22earningsslides33023 Year End 2022 Earnings Presentation March 30, 2023 Cautionary Statements And Risk Factors That May Affect Future Results The following presentation for Altus Power, Inc.

Description of Securities (incorporated by reference as Exhibit 10.21 to the Company’ Annual Report on Form 10-K for the Year Ended December 31, 2022, filed with the SEC on March 30, 2023)

ex42descriptionofsecurit Exhibit 4.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED Altus Power, Inc., Inc. (the “Company,” “we,” “our” and “us” ) has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended, namely, our Class A common stock, par value $0.0001 per share (“

Altus Power, Inc. Announces Fourth Quarter and Full Year 2022 Financial Results

Altus Power, Inc. Announces Fourth Quarter and Full Year 2022 Financial Results Full Year 2022 Financial Highlights •Full year 2022 revenues of $101.2 million, a 41% increase as compared to full year 2021 •GAAP net income of $52.2 million for full year 2022, an increase as compared to $13.0 million for full year 2021 •Adjusted EBITDA* of $58.6 million for full year 2022, or a 43% increase as compa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 30, 2023 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 30, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

Form of Restricted Stock Unit Award Agreement, pursuant to Altus Power, Inc. 2021 Omnibus Incentive Plan, by and between Altus Power, Inc. and employees, dated as of February 15, 2022 (incorporated by reference as Exhibit 10.21 to the Company’s Annual Report on Form 10-K for the Year Ended December 31, 2022, filed with the SEC on March 30, 2023)

formofrestrictedstockuni 1136376483 Name: Number of Restricted Stock Units subject to Award: Date of Grant: Vesting Commencement Date: ALTUS POWER, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 13, 2023 Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): March 13, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

Altus Power, Inc. Confirms No Exposure to Silicon Valley Bank, Signature Bank or First Republic Bank

Altus Power, Inc. Confirms No Exposure to Silicon Valley Bank, Signature Bank or First Republic Bank STAMFORD, CT, March 13, 2023 – Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today updated stakeholders that it has no exposure to Silicon Valley Bank, Signature Bank or First Republic Ban

Altus Power, Inc. Announces Closing of 220 MW Portfolio With Funding by Blackstone

Altus Power, Inc. Announces Closing of 220 MW Portfolio With Funding by Blackstone STAMFORD, CT, February 16, 2023 – Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced that it closed on the acquisition of approximately 220 megawatts (MW) of solar assets, including 207 MW of ope

Purchase and Sale Agreement, by and among True Green Capital Fund III, L.P., APA Finance III, LLC, and solely for the purposes of Article V, Section 6.04, Section 6.05 and Article X thereof, Altus Power, LLC, dated as of December 23, 2022 (incorporated by reference to Exhibit 2.1 of the Company’s Current Report on Form 8-K, filed with the SEC on February 16, 2023).

Execution Version HIGHLY CONFIDENTIAL Purchase and Sale Agreement by and among True Green Capital Fund III, L.

Credit Agreement, dated as of February 15, 2023, among APA Finance III Borrower, LLC, APA Finance III Borrower Holdings, LLC, Blackstone Asset Based Finance Advisors LP, U.S. Bank Trust Company, National Association, U.S. Bank National Association, and the lenders party thereto (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on February 16, 2023).

Execution Version CREDIT AGREEMENT Dated as of February 15, 2023 among APA FINANCE III BORROWER, LLC, as the Borrower, APA FINANCE III BORROWER HOLDINGS, LLC, as the Equity Holder, BLACKSTONE ASSET BASED FINANCE ADVISORS LP, as Blackstone Representative, U.

Class A Note, dated February 15, 2023, by APA Finance III Borrower, LLC, in favor of Security Life of Denver Insurance

LENDER: Security Life of Denver Insurance Company PRINCIPAL AMOUNT: $19,850,362.69 PPN: 00197@AA9 CLASS A NOTE New York, New York February 15, 2023 FOR VALUE RECEIVED, the undersigned, APA FINANCE III BORROWER, LLC a Delaware limited liability company (the “Borrower”), hereby promises to pay to the Lender set forth above (the “Lender”) or its registered assigns, in lawful money of the United State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 15, 2023 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 15, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

AMPS / Altus Power, Inc. Class A Common Stock / Empyrean Capital Partners, LP - ALTUS POWER, INC. Passive Investment

SC 13G/A 1 p23-0661sc13ga.htm ALTUS POWER, INC. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Altus Power, Inc. (formerly known as CBRE Acquisition Holdings, Inc.) (Name of Issuer) Class A Common Stock, $0.0001 par value per share (Title of Class of Securities) 02217A102 (CUSIP Number) December 31 2021 (Date of

AMPS / Altus Power, Inc. Class A Common Stock / Goffe Andrew J. - SC 13G/A Passive Investment

SC 13G/A 1 tm236317d3sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 1)* Under the Securities Exchange Act of 1934 Altus Power, Inc. (formerly known as CBRE Acquisition Holdings, Inc.) (Name of Issuer) Class A Common Stock, $0.0001 par value (Title of Class of Securities) 02217A102 (CUSIP Number) December 31, 2022 (Date of Eve

ALTUS POWER, INC. Secondary Offering of 152,275,174 Shares of Class A Common Stock

424B3 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS ALTUS POWER, INC. Secondary Offering of 152,275,174 Shares of Class A Common Stock This prospectus relates to the offer and sale, from time to time, by the selling securityholders named in this prospectus (the “Selling Securityholders”), or any of their permitted transferees, of (i) 1,111,243 shares of

Altus Power, Inc. 2200 Atlantic Street, 6th Floor Stamford, CT 06902

Altus Power, Inc. 2200 Atlantic Street, 6th Floor Stamford, CT 06902 February 7, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Altus Power, Inc. Post-Effective Amendment No. 2 to Form S-1 Converting to Registration Statement on Form S-3 (as amended) File No. 333-262072 Ladies and Gentlemen: Pursuant to Rule 461

As filed with the Securities and Exchange Commission on February 3, 2023

Table of Contents As filed with the Securities and Exchange Commission on February 3, 2023 Registration No.

Power of Attorney of Diane D. Brink.

Exhibit 24.2 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that Diane D. Brink, whose signature appears below, constitutes and appoints Gregg J. Felton, Lars R. Norell and Dustin L. Weber, and each of them, her true and lawful attorney-in-fact with full power of substitution and resubstitution for her and in her name, place and stead, in any and all capacities to sign any and all amendments in

COZEN O’CONNOR, P.C. 33 South Sixth Street, Suite 3800 Minneapolis, MN 55402

CORRESP 1 filename1.htm COZEN O’CONNOR, P.C. 33 South Sixth Street, Suite 3800 Minneapolis, MN 55402 February 3, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Energy and Transportation 100 F. Street, NE Washington D.C. 20549 Attn: Michael Purcell Re: Altus Power, Inc. Post-Effective Amendment No. 2 to Form S-1 on Form S-3 (Registration No. 333-262

Altus Power, Inc. Debt Securities Preferred Stock Common Stock Debt Warrants Equity Warrants

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-269337 PROSPECTUS Altus Power, Inc. $600,000,000 Debt Securities Preferred Stock Common Stock Debt Warrants Equity Warrants Rights Units We may offer and sell up to $600,000,000 in the aggregate of the securities identified from time to time in one or more offerings. This prospectus provides a general description of the securi

Altus Power, Inc. 2200 Atlantic Street, 6th Floor Stamford, CT 06902

CORRESP 1 filename1.htm Altus Power, Inc. 2200 Atlantic Street, 6th Floor Stamford, CT 06902 January 27, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Altus Power, Inc. Registration Statement on Form S-3 File No. 333-269337 Ladies and Gentlemen: Pursuant to Rule 461 under the Securities Act of 1933, as amended,

Altus Power, Inc. Announces Appointment of Diane Brink to Board of Directors

Altus Power, Inc. Announces Appointment of Diane Brink to Board of Directors STAMFORD, CT, January 24, 2023 – Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced that Diane Brink has joined its Board of Directors. Ms. Brink will additionally chair the Compensation Committee and

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 18, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

Filing Fee Table.

EX-FILING FEES 7 d421805dexfilingfees.htm EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Altus Power, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1)(2) Proposed Maximum Aggregate Offering Price Per Share (1)(2) Maximum Aggregate Offering

AMPS / Altus Power, Inc. Class A Common Stock / Felton Gregg J - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) ALTUS POWER, INC. (Name of Issuer) Class A Common Stock (Title of Class of Securities) 02217A 102 (CUSIP Number) Gregg Felton Co-Chief Executive Officer Altus Power, Inc. 2200 Atlantic Street, 6th Floor Stamford, CT 06902 (203) 698-0090 Copy to:

As filed with the Securities and Exchange Commission on January 20, 2023

Table of Contents As filed with the Securities and Exchange Commission on January 20, 2023 Registration No.

Power of Attorney (included on signature page to this registration statement).

Table of Contents As filed with the Securities and Exchange Commission on January 20, 2023 Registration No.

Form of Indenture.

Exhibit 4.6 FORM OF INDENTURE Dated as of [ ] Between ALTUS POWER, INC. as Issuer and WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section Indenture Section Section 3.10(a)(1) 609 (a)(2) 609 (a)(3) Not Applicable (a)(4) Not Applicable (b) 608 610 Section 3

Statement of Eligibility on Form T-1 under the Trust Indenture Act of 1939, as amended, of Wilmington Trust, National Association, as trustee under the indenture filed on Exhibit 4.6 above.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON TRUST, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) 16-1486454 (I.R.S. employer identification no.) 1100 North Market Street Wilmington, DE 19890-0001 (Address of principal

Independent Auditor's Report

Exhibit 99.1 Independent Auditor's Report To the Member of DESRI II Acquisition Holdings, L.L.C. and Subsidiaries Report on the Audit of the Consolidated Financial Statements Opinion We have audited the accompanying consolidated financial statements of DESRI II Acquisition Holdings, L.L.C. and its subsidiaries (collectively, “DESRI II Acquisition Holdings, L.L.C and Subsidiaries” or the “Company”)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 11,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 11, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization)

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 18 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock   Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the “

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.2 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION The unaudited pro forma condensed combined financial information below has been prepared to illustrate the effect of Altus Power, Inc.’s (“Altus”) acquisition of DESRI II Acquisition Holdings, L.L.C. and DESRI V Acquisition Holdings, L.L.C. DESRI II & V (“DESRI II & V”) (the “Acquisition”), which was consummated on November

Commercial Scale Solar Investor Presentation January 2023 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s man

Commercial Scale Solar Investor Presentation January 2023 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc.

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 11, 2023 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 17 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock   Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the “

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 23, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commiss

Altus Power, Inc. Announces New Financing Agreement To Optimize Recent Acquisition from D.E. Shaw Renewable Investments New agreement refinances and upsizes assumed DESRI facility up to $141.3 million at an effective fixed rate of 4.885% for five yea

Altus Power, Inc. Announces New Financing Agreement To Optimize Recent Acquisition from D.E. Shaw Renewable Investments New agreement refinances and upsizes assumed DESRI facility up to $141.3 million at an effective fixed rate of 4.885% for five years STAMFORD, CT, January 5, 2023 ? Altus Power, Inc. (?Altus Power? or the ?Company?) (NYSE: AMPS), the premier independent developer, owner and opera

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 16 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the ?

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 23, 2022 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 23, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

Financing Agreement, dated December 23, 2022, among APA Finance II, LLC, KeyBanc Capital Markets Inc., KeyBanc National Association, the Huntington National Bank and the lenders thereto*

Execution Version FINANCING AGREEMENT Dated as of December 23, 2022 Among APA FINANCE II, LLC a Delaware limited liability company (as the Borrower) and KEYBANC CAPITAL MARKETS INC.

Financing Agreement, dated December 23, 2022, among APA Finance II, LLC, KeyBanc Capital Markets Inc., KeyBanc National Association, the Huntington National Bank and the lenders thereto (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on December 27, 2022).

EX-10.1 2 desriiiv-financingagreemen.htm EX-10.1 Execution Version FINANCING AGREEMENT Dated as of December 23, 2022 Among APA FINANCE II, LLC a Delaware limited liability company (as the Borrower) and KEYBANC CAPITAL MARKETS INC., (as Mandated Lead Arranger and a Joint Lead Arranger) and KEYBANK NATIONAL ASSOCIATION (as Administrative Agent for the Lenders, Collateral Agent for the Secured Partie

Altus Power, Inc. Announces Definitive Agreement to Acquire Approximately 220 Megawatts from True Green Capital Management LLC Altus Power’s portfolio of solar and storage assets expected to grow to approximately 690 megawatts across 24 states

Altus Power, Inc. Announces Definitive Agreement to Acquire Approximately 220 Megawatts from True Green Capital Management LLC Altus Power’s portfolio of solar and storage assets expected to grow to approximately 690 megawatts across 24 states STAMFORD, CT, December 27, 2022 – Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), a premier independent developer, owner and operator of co

Press Release

Altus Power, Inc. Announces Definitive Agreement to Acquire Approximately 220 Megawatts from True Green Capital Management LLC Altus Power’s portfolio of solar and storage assets expected to grow to approximately 690 megawatts across 24 states STAMFORD, CT, December 27, 2022 – Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), a premier independent developer, owner and operator of co

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 15 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock   Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the “

Credit Agreement, dated December 19, 2022, among APA Generation, LLC, the several lenders from time to time parties thereto, Citibank, N.A., Bank of America, N.A., JPMorgan Chase Bank, N.A., KeyBank National Association and Truist Securities, Inc. and the other Letter of Credit Issuers party hereto from time to time, and Citibank, N.A. (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on December 19, 2022).

Execution Version Deal CUSIP Number: 00187PAA7 Revolving Credit Facility CUSIP Number: 00187PAB5 CREDIT AGREEMENT dated as of December 19, 2022 among APA Generation, LLC, as the Borrower, The Several Lenders from Time to Time Parties Hereto, Citibank, N.

Altus Power, Inc. Announces Execution of Revolving Credit Facility of up to $200 Million

Altus Power, Inc. Announces Execution of Revolving Credit Facility of up to $200 Million STAMFORD, CT, December 19, 2022 – Altus Power, Inc. (“Altus Power” or the “Company”) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced it has closed on a revolving credit facility (the “Credit Facility”) which provides the Company with up

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 14 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the ?

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 19, 2022 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 19, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

Altus Power, Inc. Announces Third Quarter 2022 Financial Results

Altus Power, Inc. Announces Third Quarter 2022 Financial Results Third Quarter 2022 Financial Highlights •Revenues of $30.4 million during third quarter 2022, an increase of 51% over third quarter 2021 •GAAP net loss of $96.6 million, as compared to third quarter 2021 net loss of $1.3 million driven by a $102.0 million non-cash loss from fair value remeasurement of both warrants and alignment shar

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 12 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the ?

Altus Power, Inc. Announces Closing of 88 MW of Assets

Altus Power, Inc. Announces Closing of 88 MW of Assets STAMFORD, CT, November 14, 2022 ? Altus Power, Inc. (?Altus Power? or the ?Company?) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced that it has closed on the acquisition of approximately 88 megawatts (MW) of operating solar assets. These assets were purchased from D. E.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 11, 2022 Altus Power, In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 11, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissio

Membership Interest Purchase Agreement by and between APA Finance II, LLC, as Buyer, and DESRI II, L.L.C as Seller, dated as of September 26, 2022 (incorporated by reference to Exhibit 2.2 of the Company’s Current Report on Form 8-K, filed with the SEC on November 14, 2022).

EXECUTION VERSION Certain information, marked using “[***]”, has been excluded from the exhibit because it is both not material and is the type that the registrant treats as private or confidential.

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 13 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the ?

Membership Interest Purchase Agreement by and between APA Finance II, LLC, as Buyer, and DESRI V, L.L.C as Seller, dated as of September 26, 2022 (incorporated by reference to Exhibit 2.1 of the Company’s Current Report on Form 8-K, filed with the SEC on November 14, 2022).

EXECUTION VERSION Certain information, marked using “[***]”, has been excluded from the exhibit because it is both not material and is the type that the registrant treats as private or confidential.

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 11, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commiss

Q3 2022 Earnings Presentation NOVEMBER 14 , 2022 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management.

a3q22earningsslides11132 Q3 2022 Earnings Presentation NOVEMBER 14 , 2022 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 20, 2022 Altus Power, Inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 20, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 11 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supplemented or amended from time to time, the ?

Altus Power, Inc. Announces the Results of the Completed Redemption of all Outstanding Public and Private Warrants

Altus Power, Inc. Announces the Results of the Completed Redemption of all Outstanding Public and Private Warrants STAMFORD, CT, October 20, 2022 ? Altus Power, Inc. (NYSE: AMPS) (?Altus Power? or the ?Company?), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced the results of the completed redemption of all of its outstanding public warran

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on October 28, 2022, pursuant to the provisions of Rule 12d2-2 (a).

Altus Power, Inc. Reminds Investors of the Redemption of Public and Private Placement Warrants

Altus Power, Inc. Reminds Investors of the Redemption of Public and Private Placement Warrants STAMFORD, CT, October 11, 2022 ? Altus Power, Inc. (NYSE: AMPS) (?Altus Power? or the ?Company?) (Nasdaq: AMPS), announced that as of October 10, 2022, approximately 10,839,987 public and private placement warrants (the ?Redeemable Warrants?) have been exercised. As previously announced on September 15,

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 10 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as supp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 11, 2022 Altus Power, Inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): October 11, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

AMPS / Altus Power, Inc. Class A Common Stock / GSO Altus Holdings LP - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Altus Power, Inc. (Name of Issuer) Class A Common Stock, $0.0001 par value (Title of Class of Securities) 02217A 102 (CUSIP Number) John G. Finley Blackstone Inc. 345 Park Avenue New York, New York 10154 Tel: (212) 583-5000 Marisa Beeney Blackstone Alter

ALTUS POWER, INC. ANNOUNCES SECONDARY UNDERWRITTEN PUBLIC OFFERING OF CLASS A COMMON STOCK

EXHIBIT 99.1. ALTUS POWER, INC. ANNOUNCES SECONDARY UNDERWRITTEN PUBLIC OFFERING OF CLASS A COMMON STOCK STAMFORD, CT ? September 28, 2022 ? Altus Power, Inc. (?Altus Power?) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced that a selling stockholder affiliated with Blackstone (?Blackstone?) intends to offer and sell 7,000,00

7,000,000 Shares Class A Common Stock

Prospectus Supplement Filed pursuant to Rule 424(b)(4) (To Prospectus dated January 21, 2022) Registration No.

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 9 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Underwriting Agreement, dated September 28, 2022

EXHIBIT 1.1. Execution Version Altus Power, Inc. 7,000,000 Shares of Class A Common Stock Underwriting Agreement September 28, 2022 J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 Evercore Group L.L.C. 55 East 52nd Street New York, New York 10055 As Representatives of the several Underwriters listed

ALTUS POWER, INC. ANNOUNCES PRICING OF SECONDARY UNDERWRITTEN PUBLIC OFFERING OF CLASS A COMMON STOCK

EXHIBIT 99.2. ALTUS POWER, INC. ANNOUNCES PRICING OF SECONDARY UNDERWRITTEN PUBLIC OFFERING OF CLASS A COMMON STOCK STAMFORD, CT ? September 28, 2022 ? Altus Power, Inc. (?Altus Power?) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced the pricing of a secondary underwritten public offering of its Class A common stock by a sel

AMPS / Altus Power, Inc. Class A Common Stock / CBRE Acquisition Sponsor, LLC - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* ALTUS POWER, INC. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 02217A 102 (CUSIP Number) Laurence H. Midler CBRE Group, Inc. 2100 McKinney Avenue, Suite 1250 Dallas, Texas 75201 (214) 979-6100 (Name, A

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 28, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissi

Subject to completion, dated September 28, 2022

The information in this preliminary prospectus supplement is not complete and may be changed.

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 27, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissi

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 8 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Altus Power, Inc. Announces Definitive Agreements to Acquire Approximately 97 Megawatts of Operating Solar Assets Altus Power’s portfolio of solar and storage assets expected to grow to approximately 466 megawatts across 22 states

Altus Power, Inc. Announces Definitive Agreements to Acquire Approximately 97 Megawatts of Operating Solar Assets Altus Power?s portfolio of solar and storage assets expected to grow to approximately 466 megawatts across 22 states STAMFORD, CT, September 27, 2022 ? Altus Power, Inc. (?Altus Power? or the ?Company?) (NYSE: AMPS), the premier independent developer, owner and operator of commercial-s

NOTICE OF REDEMPTION TO THE HOLDERS OF ALTUS POWER, INC. PUBLIC AND PRIVATE PLACEMENT WARRANTS (CUSIP 02217A 11 0)

Exhibit 99.1 BY FIRST CLASS MAIL September 15, 2022 NOTICE OF REDEMPTION TO THE HOLDERS OF ALTUS POWER, INC. PUBLIC AND PRIVATE PLACEMENT WARRANTS (CUSIP 02217A 11 0) Dear Warrant Holder, NOTICE IS HEREBY GIVEN, as of September 15, 2022, that Altus Power, Inc. (formerly known as CBRE Acquisition Holdings, Inc., and hereinafter referred to as the ?Company?) is redeeming, at 5:00 p.m. New York City

Altus Power, Inc. Announces Redemption of Public and Private Placement Warrants

Altus Power, Inc. Announces Redemption of Public and Private Placement Warrants STAMFORD, CT, September 15, 2022 ? Altus Power, Inc. (NYSE: AMPS) (?Altus Power? or the ?Company?), the premier independent developer, owner and operator of commercial-scale solar facilities, today announced that it will redeem all of its remaining public and private placement warrants (the ?Warrants?) to purchase shar

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 7 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 15, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commissi

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): August 17, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 6 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Altus Power, Inc. Announces Second Quarter 2022 Financial Results

Altus Power, Inc. Announces Second Quarter 2022 Financial Results Second Quarter 2022 Financial Highlights ?Generated revenues of $24.8 million during second quarter 2022, an increase of 41% over second quarter 2021 ?Second quarter 2022 GAAP net income of $21.6 million, as compared to second quarter 2021 net loss of $0.4 million driven by a $21.4 million non-cash gain from fair value remeasurement

Q2 2022 Earnings Presentation AUGUST 15 , 2022 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc. (“Altus Power” or the “Company”) has been prepared by Altus Power’s management. Yo

Q2 2022 Earnings Presentation AUGUST 15 , 2022 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS POWER

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 5 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 8/15/2022 Date of Report (date of earliest event reported) Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File Nu

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 15, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission Fi

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 4 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Altus Power, Inc. Announces Warrant Exchange Agreement

Altus Power, Inc. Announces Warrant Exchange Agreement STAMFORD, CT, June 1, 2022 ? Altus Power, Inc. (NYSE: AMPS) (?Altus Power? or the ?Company?), a leading clean electrification company, today announced that on May 31, 2022 it signed separate, privately negotiated warrant exchange agreements with multiple holders of its public warrants to purchase shares of its Class A common stock (the ?Public

AMPS / Altus Power, Inc. Class A Common Stock / Goffe Andrew J. - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. )* Under the Securities Exchange Act of 1934 Altus Power, Inc. (formerly known as CBRE Acquisition Holdings, Inc.) (Name of Issuer) Class A Common Stock, $0.0001 par value (Title of Class of Securities) 02217A102 (CUSIP Number) June 1, 2022 (Date of Event which Requires Filing of this Statement) Che

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 31, 2022 Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission F

Altus Power, Inc. Announces Warrant Exchange Agreement

Altus Power, Inc. Announces Warrant Exchange Agreement STAMFORD, CT, June 1, 2022 ? Altus Power, Inc. (NYSE: AMPS) (?Altus Power? or the ?Company?), a leading clean electrification company, today announced that on May 31, 2022 it signed separate, privately negotiated warrant exchange agreements with multiple holders of its public warrants to purchase shares of its Class A common stock (the ?Public

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 3 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 5/31/2022 Date of Report (date of earliest event reported) Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File Nu

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 5/23/2022 Date of Report (date of earliest event reported) Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-04321 ALTUS POWE

Altus Power, Inc. Announces First Quarter 2022 Financial Results

Altus Power, Inc. Announces First Quarter 2022 Financial Results First Quarter Highlights ?Operating revenues of $19.2 million for first quarter 2022, an increase of 54% over first quarter 2021 ?First quarter 2022 GAAP net income of $60.1 million, as compared to first quarter 2021 net income of $0.3 million driven by a $64.8 million non-cash gain from fair value remeasurement of both warrants and

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 5/16/2022 Date of Report (date of earliest event reported) Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File Nu

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 2 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the prospectus dated January 21, 2022 (as suppl

Q1 2022 Earnings Presentation MAY 1 6 , 2 0 2 2 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc. (as used in this section, “Altus” or the “Company”) has been prepared by Altus’s

Q1 2022 Earnings Presentation MAY 1 6 , 2 0 2 2 Cautionary Statements And Risk Factors That May Affect Future Results 2 The following presentation for Altus Power, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ?? Check the appropriate box: ?? Preliminary Proxy Statement ?? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ?? Definitive Proxy S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ?? Check the appropriate box: ?? Preliminary Proxy Statement ?? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy St

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39798 Altus Power, Inc. (

Altus Power, Inc. Announces Full Year and Fourth Quarter 2021 Financial Results

Altus Power, Inc. Announces Full Year and Fourth Quarter 2021 Financial Results Fourth Quarter and Full Year 2021 Financial Highlights ?Generated revenues of $71.8 million for full year 2021, an increase of 59% over full year 2020 ?Full year 2021 GAAP net income of $13.0 million, as compared to 2020 net loss of $1.9 million ?Full year 2021 adjusted EBITDA of $41.0 million, an increase of 60% over

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 3/24/2022 Date of Report (date of earliest event reported) Altus Power, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39798 (Commission File Nu

Exhibit 4.4

DESCRIPTION OF SECURITIES The following summary of the material terms of our securities is not intended to be a complete summary of the rights and preferences of such securities.

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock

424B3 424b3covercombinedwith10-k.htm 424B3 Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS SUPPLEMENT NO. 1 (to Prospectus dated January 21, 2022) ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Common Stock ? Secondary Offering of 156,463,281 Shares of Common Stock 9,366,667 Warrants to Purchase Common Stock This prospectus supplement amends and supplements the

As filed with the Securities and Exchange Commission on March 24, 2022

As filed with the Securities and Exchange Commission on March 24, 2022 Registration No.

Filing Fee Table.

Exhibit 107.1 Calculation of Filing Fee Tables Form S-8 (Form Type) Altus Power, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title(1) Fee Calculation Rule Amount Registered(2) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common stock, $0.001 par

CBAH / CBRE Acquisition Holdings, Inc. / D1 Capital Partners L.P. - ALTUS POWER, INC. Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Altus Power, Inc. (formerly known as CBRE Acquisition Holdings, Inc.) (Name of Issuer) Class A Common Stock, $0.0001 par value (Title of Class of Securities) 02217A102 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check th

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 ALTUS POWER, INC. (Exact name of registrant as specified in its charter) Delaware 85-344396 (State or other jurisdiction

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ALTUS POWER, INC.

CBAH / CBRE Acquisition Holdings, Inc. / INTEGRATED CORE STRATEGIES (US) LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (AMENDMENT NO. 2) ALTUS POWER, INC. (formerly CBRE Acquisition Holdings, Inc.) (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 02217A102 (CUSIP Number) DECEMBER 31, 2021 (Date of event which requires filing of this statemen

ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Class A Common Stock Secondary Offering of 156,463,281 Shares of Class A Common Stock 9,366,667 Warrants to Purchase Class A Common Stock

Filed Pursuant to Rule 424(b)(3) Registration No. 333-262072 PROSPECTUS ALTUS POWER, INC. Primary Offering Of 19,429,167 Shares of Class A Common Stock Secondary Offering of 156,463,281 Shares of Class A Common Stock 9,366,667 Warrants to Purchase Class A Common Stock This prospectus relates to the issuance by us of up to an aggregate of (i) 10,062,500 shares of our Class A common stock that may b