In 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...