Marvell Buys Lumentum in $115 Billion All-Stock Deal for AI Data Centers

Direct answer

Marvell Technology will buy Lumentum in an all-stock deal with an implied enterprise value of $115 billion, the companies announced on November 2, 2026. Marvell will give 4.5 of its own shares for each Lumentum share, and the deal is expected to close in the first half of calendar year 2028 if shareholders and regulators agree.

What happened

Marvell designs custom chips used in data centers. Lumentum makes optical chips, lasers, and networking equipment that move data inside those centers using light. TechCrunch reported the deal as one of the largest acquisitions in tech history, with an enterprise value of $115 billion including debt and an equity value of about $80 billion.

Under the announced terms, each Lumentum share will convert into 4.5 Marvell shares. Based on prices on October 28, 2026, that was worth about $1,132 per Lumentum share, a premium of about 23.9 percent to Lumentum’s unaffected closing price. After the deal closes, existing Marvell shareholders would own about 67 percent of the combined company and Lumentum shareholders about 33 percent, on a fully diluted basis.

Marvell chief executive Matt Murphy will stay as chairman and chief executive of the combined company, and three Lumentum directors will join the Marvell board. The two companies also share a major shareholder in Nvidia, which invested $2 billion in each company in March 2026 to support optical networking and laser work, according to TechCrunch.

The market reaction on November 2 was negative for both stocks. The Motley Fool reported that Marvell closed at $170.80, down 12.72 percent, while Lumentum finished at $684.40, down 18.59 percent. That fall is easier to understand once the fixed share ratio is clear: because Lumentum holders receive Marvell shares rather than cash, the value of their payment falls when Marvell’s share price falls.

Why it matters for beginners

Data centers are large buildings full of computers that run online services and artificial intelligence tools. As AI systems get larger, those computers need to pass huge amounts of data to each other quickly, and optical connections using light can do that faster and with less power than some older electrical connections in some parts of a system.

Marvell says the deal will make it a leader in AI connectivity, with products ranging from chips to data center equipment. For beginners, the key idea is simple: Marvell is buying the optical part of the puzzle rather than building it all from scratch.

The share price falls also show an important lesson about all-stock deals. A headline value such as $115 billion is a snapshot based on share prices at one point in time. It is not a fixed cash payment. If Marvell’s price moves before closing, the value received by Lumentum holders moves with it.

This deal also fits the wider AI spending story seen in recent weeks, including Oracle’s plan to raise $20 billion through a stock and bond sale to fund its AI buildout, covered in our earlier post on Oracle Plans $20 Billion Stock and Bond Sale to Fund AI Buildout.

What to watch next

Watch for shareholder votes and regulatory clearances, which are both required before the deal can close. Either step could delay the timetable, which is currently set for the first half of 2028.

Watch Marvell’s share price, because it now helps set the value of the deal for Lumentum holders. A recovery would lift that implied value, while a further fall would reduce it.

Watch how the two businesses are combined. Investors will look for clear signs that the chip and optical parts work well together, and that the combined company can turn large AI spending by its customers into steady revenue and profit.

FAQ

What does all-stock mean?

All-stock means the buyer pays with its own shares, not cash. Lumentum shareholders would become Marvell shareholders, owning about one third of the combined company.

Why did Lumentum shares fall if it is being bought?

In a cash deal, the target company usually rises toward the offer price. Here, the payment is 4.5 Marvell shares, and Marvell shares fell sharply on the day. That reduced the value of the payment, so Lumentum shares fell as well.

Is the $115 billion figure guaranteed?

No. It is an implied enterprise value based on reference share prices around the announcement, and it includes debt. The final value for shareholders will depend on Marvell’s share price and other deal details at closing.

When will the deal close?

The companies expect the first half of calendar year 2028, subject to shareholder approval, regulatory clearance, and other closing conditions. That timetable could change.