York Space Systems investors have until October 30, 2026, to ask the U.S. District Court for the District of Colorado to appoint them as lead plaintiff in a pending securities class action. The case covers purchases of York common stock issued under or traceable to the registration statement and prospectus for its January 2026 initial public offering, as well as York securities purchased from January 29 through May 11, 2026, inclusive. Rosen Law Firm said the complaint alleges that York and its leadership failed to disclose that onboard mission and payload software was not fully functional before satellite launches, creating risks for contracts with the Pentagon’s Space Development Agency. The lawsuit also alleges that York used misleading statements to win SDA contracts and delivered satellites without completed mission-critical software. No class has been certified. Hagens Berman, which previously publicized the case, said it was investigating related allegations involving operational readiness, manufacturing scale, technological reliability, commercial backlog and defense contracts. Investors may remain absent class members, seek lead-plaintiff status, or retain counsel; Rosen said eligible clients would not pay out-of-pocket fees or costs under its contingency arrangement. The prior notice also said people with non-public information could consider the SEC whistleblower program, which may provide rewards of up to 30% of a successful SEC recovery.