New York, New York--(Newsfile Corp. - August 4, 2026) - WHY: Rosen Law Firm, a global investor rights law firm, reminds purchasers of Class A common stock of GPGI, Inc. f/k/a CompoSecure, Inc. (NYSE: GPGI) (NYSE: CMPO) between November 3, 2025 and May 6, 2026, inclusive (the "Class Period"), of the important September 14, 2026 lead plaintiff deadline. SO WHAT: If you purchased GPGI Class A common stock during the Class Period you may be entitled to compensation without payment of any out of pocket fees or costs through a contingency fee arrangement.