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POET Technologies (POET) Is Up 34.6% After Marvell Cancels Orders And Lawsuits Mount - What's ChangedIn late April 2026, POET Technologies disclosed that Marvell Semiconductor had cancelled all Celestial AI-related purchase orders, prompting a wave of federal securities class action lawsuits alleging misleading statements about the company’s tax status and confidentiality obligations. The allegations that POET may be treated as a passive foreign investment company under U.S. tax law add an unusual layer of potential complexity for its U.S. shareholders. With these legal challenges and the...