Investing.com — POET Technologies Inc. (NASDAQ:POET) shares fell 20% Monday after the company disclosed the cancellation of all purchase orders from Celestial AI, now owned by Marvell Semiconductor Inc.
Marvell provided written notice on April 23, 2026, canceling all purchase orders, including those for initial production units first announced by POET in a press release on April 25, 2023. Marvell cited the company’s disclosures of information related to the purchase orders and shipping details as violations of confidentiality obligations.