Lumentum shares are trading at $803.00, down 4.48% in pre-market trading. The decline follows a busy news day for the company: * Lumentum and Marvell announced a proposed $115 billion all-stock acquisition, with Lumentum shareholders receiving 4.5 Marvell shares per share. * The company reported strong Q1 results, with revenue of $1.26 billion and adjusted EPS of $4.57, both beating estimates. * Lumentum also provided upbeat Q2 revenue guidance of $1.575–$1.625 billion.