A securities class action, meaning a lawsuit filed on behalf of a group of investors with similar claims against the same defendant, has been filed against GPGI, Inc. and certain of the company's officers. GPGI trades on the NYSE and was previously known as CompoSecure, Inc., with shares also listed under the ticker CMPO. New York-based Bronstein, Gewirtz & Grossman, LLC, which describes itself as a nationally recognized investor-rights firm, announced the filing on July 17, 2026, and is urging affected investors to act.
What a class action means for shareholders
When investors suffer similar alleged losses tied to the same company conduct, a class action allows them to pool their claims into one lawsuit rather than each person filing separately. That structure matters because most individual investors lose too little money to justify the cost of solo litigation. A single case can therefore represent thousands of shareholders at once.
The named defendants are GPGI, Inc. and "certain of its officers," the standard language used when executives are implicated alongside the corporation. The announcement does not identify those officers by name.
The company's name change and what it means for the case
GPGI, Inc. carries the designation "f/k/a CompoSecure, Inc." in the filing. That notation, short for "formerly known as," signals that the current entity and the old one are the same legal body under a new name. Shareholders who held CompoSecure shares, listed under the CMPO ticker, may carry the same legal standing as current GPGI holders, since the lawsuit names both identities.
What the filing does not disclose
The announcement does not specify what the lawsuit seeks, what conduct is alleged, the time period covered by the class, or any dollar figure tied to claimed damages. Those details would appear in the full court complaint. The Bronstein, Gewirtz & Grossman notice asks investors to come forward, which is standard practice in federal securities cases before the court selects a lead plaintiff to represent the entire class.