SCHEDULE 13D/A

ALTUS POWER INC

Class A Common Stock, $0.0001 par value · CUSIP: 02217A102

Event date: 2025-02-05

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• GSO Altus Holdings LPReported CIK 0001896588

  Shares: 21,116,125 · Class: 13.2%

• GSO Altus Holdings Associates LLCReported CIK 0001896569

  Shares: 21,116,125 · Class: 13.2%

• GSO Holdings I L.L.C.Reported CIK 0001481157

  Shares: 21,116,125 · Class: 13.2%

• Blackstone Holdings II L.P.Reported CIK 0001484870

  Shares: 21,116,125 · Class: 13.2%

• Blackstone Holdings I/II GP L.L.C.Reported CIK 0001464695

  Shares: 21,116,125 · Class: 13.2%

• Blackstone Inc.Reported CIK 0001393818

  Shares: 21,116,125 · Class: 13.2%

• Blackstone Group Management L.L.C.Reported CIK 0001404071

  Shares: 21,116,125 · Class: 13.2%

• Stephen A. SchwarzmanReported CIK 0001070844

  Shares: 21,116,125 · Class: 13.2%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.