Marvell Technology is trading 4.47% down at $12.61 as investors remain concerned about its announced $115 billion all-stock acquisition of Lumentum. - Concerns include potential shareholder dilution, integration risks, and uncertainty about the deal’s scale and timing. The transaction gives Lumentum shareholders 4.5 Marvell shares for each share they own. - The broader semiconductor sector is up 2.95%, supported by strong earnings and AI optimism, so sector weakness does not explain the decline. No volume or activity-level data is available.