NEW YORK, Aug. 4, 2026 /PRNewswire/ -- 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, 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.