Marvell will buy Lumentum in a US$115-billion stock deal, betting optical links will become vital to AI data centres
The proposed all-stock acquisition would unite semiconductor and photonics technologies as data centres strain conventional copper connections.
Thunder Bay – TECH — Marvell Technology has agreed to acquire optical-components maker Lumentum in an all-stock transaction carrying an implied enterprise value of US$115 billion, one of the technology sector’s largest bets on continued artificial-intelligence infrastructure spending.
Lumentum shareholders would receive 4.5 Marvell shares for every share they hold. The companies calculated the offer at about US$1,132 per Lumentum share, a 23.9 per cent premium based on unaffected Oct. 28 closing prices.
The transaction is not final.
It requires approval from both companies’ shareholders, regulatory clearances and other customary conditions. Marvell and Lumentum expect it to close in the first half of 2028.
Why Optical Technology Matters
AI clusters move enormous volumes of data between accelerators, switches and storage systems. As distances and bandwidth requirements increase, optical links can move data more efficiently than conventional copper wiring.
Marvell makes custom silicon, network switches and electrical and optical interconnect products. Lumentum supplies lasers, optical transceivers, circuit-switching technology and specialized compound semiconductors.
The companies say the combination would let them jointly design more of the data path inside and between AI facilities. They project more than US$1 billion in annual cost savings, but that estimate remains a company forecast dependent on successfully integrating the businesses.
Existing Marvell shareholders would own about 67 per cent of the combined company. Lumentum shareholders would hold about 33 per cent. Marvell chair and CEO Matt Murphy would retain both positions.
Investors Signal Caution
The scale of the deal did not produce an immediate market endorsement. Marvell shares closed down 12.7 per cent Monday, while Lumentum fell 18.6 per cent.
The declines came amid broader unease over AI capital spending and the time required to generate returns from new infrastructure. A fixed exchange ratio also means the ultimate value received by Lumentum investors will move with Marvell’s share price.
For Canadian data-centre operators, telecom companies and AI developers, the transaction matters because greater consolidation among component suppliers can influence equipment availability, pricing and the pace at which energy-efficient optical networks reach the market.
Sources: Marvell-Lumentum announcement; Lumentum’s SEC filing
