SCHEDULE 13G/A

GPGI INC COM CL A

Class A Common Stock, par value $0.0001 per share · CUSIP: 20459V105

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

• LMR Partners LLP

  Shares: 8,726,591 · Class: 7.9%

• LMR PARTNERS Ltd

  Shares: 8,726,591 · Class: 7.9%

• LMR Partners LLC

  Shares: 8,726,591 · Class: 7.9%

• LMR Partners AG

  Shares: 8,726,591 · Class: 7.9%

• LMR PARTNERS (DIFC) Ltd

  Shares: 8,726,591 · Class: 7.9%

• LMR Partners (Ireland) Limited

  Shares: 8,726,591 · Class: 7.9%

• Ben Levine

  Shares: 8,726,591 · Class: 7.9%

• Stefan Renold

  Shares: 8,726,591 · Class: 7.9%

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