BRIEFINGS · AI chips and networking
Marvell agrees to acquire Lumentum in a $115 billion all stock deal
Marvell will acquire laser and optics maker Lumentum in an all stock deal valuing it at $115 billion, as AI data centers move from copper to light.
Marvell is acquiring Lumentum. The two companies said on 2 November 2026 that they signed a definitive agreement on 1 November for an all stock deal: each Lumentum share becomes 4.500 Marvell shares, for an implied enterprise value of $115 billion, the companies say. Marvell holders would own about 67% of the combined company.
The plain-English version: inside an AI data center, thousands of chips have to pass data to each other constantly. Copper wires hit limits on speed and power, so more of that traffic is moving to light. Marvell makes the electrical chips that drive those links. Lumentum makes the lasers and optical parts that turn signals into light. Think of a team that already has the quarterback signing the top receiver, so they can design the plays together instead of meeting on game day. That is what the companies mean by co-design.
The companies also say the deal should bring more than $1 billion a year in cost savings and widen their market to $550 billion. Both are the companies' own targets, not results.
We file it because two companies on our map, both in the chips and networking layer, are combining around the copper-to-optical shift, one of the clearest signs of how AI data centers will be built.
What would change this: either set of stockholders voting it down, a regulator blocking or conditioning it, or the closing date slipping past the first half of 2028.
What this doesn't prove
The deal is signed but not closed. It needs both stockholder votes and regulatory approvals, and the companies expect to close in the first half of 2028. The $115 billion value comes from the share exchange, so it is not a fixed cash amount. The savings and market-size figures are company targets. Share-price moves are excluded.
Next fixture
- The joint proxy and registration filing with the SEC
- Regulatory reviews in the US and abroad
- Stockholder vote dates at both companies
Sources
- Marvell and Lumentum to Combine, Creating a Category Leader in AI Connectivity2 November 2026
- Marvell Technology Form 8-K (merger agreement)2 November 2026
Every figure above comes from these sources. Every briefing is checked against its sources before it publishes. Nothing here is a recommendation to buy or sell anything, and this is not investment advice. See the disclosures.