Marvell Technology has signed a definitive agreement to acquire Lumentum in an all-stock transaction that gives Lumentum an implied enterprise value of $115 billion, the two companies announced on November 2.
What happened
According to Marvell’s announcement, Lumentum stockholders will receive 4.500 Marvell shares for each Lumentum share, about $1,132 a share and a premium of about 23.9% to the unaffected closing prices of October 28. Marvell stockholders will own about 67% of the combined company and Lumentum stockholders about 33%. The companies expect to close in the first half of calendar 2028, subject to both sets of stockholders and regulators, and cite more than $1 billion in annual run-rate cost synergies.
Why it matters
The deal joins Marvell’s electrical and optical interconnect, switching and custom XPU silicon with Lumentum’s lasers, optical transceivers, optical circuit switching and indium phosphide manufacturing. The companies say copper is reaching its physical limits as AI clusters scale, and that the combined company will co-design electrical and optical parts. They put the combined addressable market at $550 billion.
What it means for buyers
Infrastructure teams building private AI clusters, and those renting capacity from neoclouds, buy optics through server, switch and transceiver suppliers, and two of those suppliers will become one. With close set for 2028, today’s part numbers and contracts are unchanged for at least a year. In our reading, teams signing multi-year optics or networking agreements in that window should ask suppliers which Marvell or Lumentum parts sit in the design, and plan a second source for each.
Recent custom chip moves include Microsoft’s Maia 300 inference chip and Tenstorrent’s $1.5 billion Series E.
Source: Marvell Technology
