SCHEDULE 13G/A

GCM Grosvenor Inc

Class A Common Stock, par value $0.0001 · CUSIP: 36831E108

Event date: 2025-06-30

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

• Michael Jay Sacks

  Shares: 142,565,831.00 · Class: 72.8%

• Grosvenor Holdings, L.L.C.

  Shares: 134,858,026.00 · Class: 71.7%

• Grosvenor Holdings II, L.L.C.

  Shares: 3,226,977.00 · Class: 5.7%

• GCM Grosvenor Management, LLC

  Shares: 4,480,828.00 · Class: 7.8%

• GCM Progress LLC

  Shares: 90,155,396.00 · Class: 62.9%

• GCM Progress Subsidiary LLC

  Shares: 90,155,396.00 · Class: 62.9%

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