Economy & Business3 Nov 2026 · about 6 min

In one of the largest deals in tech history, Marvell buys Lumentum for $115B

The brief

Marvell plans to acquire Lumentum in an all-stock transaction. The deal has an enterprise value of $115 billion, including debt, and an equity value of about $80 billion. It is designed to combine Marvell’s custom-chip business with Lumentum’s optical chips and networking equipment. Instead of paying cash, Marvell would provide 4.5 shares of its common stock for each Lumentum share. That exchange ratio determines how many new Marvell shares Lumentum investors would receive if the transaction closes. The value they receive would therefore depend on Marvell’s share price. Marvell says the combination would make it a leader in AI connectivity. Its products would span chips and data centers. The deal still requires approval from both companies’ shareholders and regulators. If those approvals arrive, the transaction is expected to close during the first half of calendar year 2028.

What are the key terms of Marvell’s proposed acquisition of Lumentum, including the $115 billion enterprise value and the exchange of 4.5 Marvell shares for each Lumentum share?

Instead of paying cash, Marvell would provide 4.5 shares of its common stock for each Lumentum share. That exchange ratio determines how many new Marvell shares Lumentum investors would receive if the transaction closes. The value they receive would therefore depend on Marvell’s share price.

Marvell says the combination would make it a leader in AI connectivity. Its products would span chips and data centers. The deal still requires approval from both companies’ shareholders and regulators. If those approvals arrive, the transaction is expected to close during the first half of calendar year 2028.

How large is this deal compared with other major technology acquisitions such as Microsoft’s purchase of Activision Blizzard and Dell’s purchase of EMC?

The proposed Marvell-Lumentum transaction is unusually large for the technology industry. Its enterprise value is $115 billion, including debt, while its equity value is about $80 billion. The article describes it as one of the biggest acquisitions in tech history.

For comparison, Microsoft agreed to buy Activision Blizzard for $68.7 billion in 2022. Dell bought EMC for $67 billion in 2016. Even the Marvell-Lumentum equity value, at about $80 billion, is higher than both of those cited purchase prices. The enterprise value is higher still because it includes debt.

The scale gives the transaction significance beyond the two companies. Marvell would combine its custom chips with Lumentum’s optical chips and networking equipment. Marvell says that broader portfolio would help it become a leader in AI connectivity, from chips through data centers. Completion remains conditional on shareholder and regulatory approval.

What is an all-stock acquisition, and how does receiving Marvell shares instead of cash affect Lumentum shareholders?

An all-stock acquisition uses the buyer’s shares as payment. Here, Marvell would not primarily hand Lumentum investors cash. Instead, it would issue 4.5 shares of Marvell common stock for every Lumentum share, subject to the deal closing.

That means Lumentum shareholders would exchange their ownership in Lumentum for ownership in Marvell. Their future investment would be tied to Marvell’s share price and the performance of the combined company. The exchange ratio sets the number of shares, while the market value of those shares can change.

This structure also means the transaction’s stated equity value is not a fixed cash payment in the usual sense. The article gives an equity value of about $80 billion and an enterprise value of $115 billion including debt. Lumentum shareholders must still approve the transaction, alongside Marvell shareholders and regulators.

Why are the deal’s enterprise value and equity value different, and how does debt account for the gap between them?

Enterprise value and equity value measure different parts of a transaction. Equity value refers to the value attributed to shareholders. Enterprise value is broader because it includes the company’s debt as well as its equity value. That is why the figures for Marvell’s proposed Lumentum acquisition are different.

The article gives an enterprise value of $115 billion, including debt, and an equity value of about $80 billion. Subtracting the stated equity value from the enterprise value produces a gap of roughly $35 billion. Based on the article’s figures, that gap reflects debt included in enterprise value but not equity value.

These amounts describe the deal at different levels. The equity figure focuses on the ownership being exchanged, while the enterprise figure captures the larger financial value associated with the business, including debt. The article does not provide a detailed debt breakdown, so the approximately $35 billion difference should be treated as an estimate from rounded figures.

What approvals are required before the acquisition can close, and why is the transaction not expected to be completed until 2028?

The acquisition cannot close automatically after the announcement. Marvell and Lumentum shareholders must approve it, and regulators must also agree. Those approvals are explicit conditions in the article, so the proposed transaction remains pending rather than complete.

The companies expect closing in the first half of calendar year 2028. That is the timetable given for the transaction, not a guarantee that it will happen then. The article does not identify a specific regulatory review, shareholder meeting date, or other event explaining the schedule.

Until the required approvals are obtained, the companies remain separate. If approvals are secured, Marvell expects to combine its custom-chip portfolio with Lumentum’s optical chips and networking equipment. Marvell says this would create leadership in AI connectivity, with products ranging from chips to data centers. The 2028 timing therefore marks the current expected completion window.

What role does Nvidia play in the deal, given that it invested $2 billion in both Lumentum and Marvell while also being a major customer or partner of each?

Nvidia is the major shareholder the two companies have in common. The article says the GPU giant invested $2 billion in Lumentum and later invested another $2 billion in Marvell. Those investments connect Nvidia financially to both businesses as Marvell seeks to combine them.

The Lumentum investment came with a multi-year agreement to purchase Lumentum’s advanced laser components. Nvidia said the money would support Lumentum’s research and development efforts and fab expansion. Later that same month, Nvidia invested $2 billion in Marvell to help strengthen Marvell’s optical networking and chips portfolio.

Nvidia therefore appears in the deal’s commercial and financial background, but the article does not say Nvidia is acquiring either company or approving the merger. Its investments and agreements show interest in the technologies involved. The acquisition would bring those related capabilities together under Marvell, if shareholders and regulators approve it.

How do Marvell’s custom chips and Lumentum’s optical components work together to move data between AI processors and data centers?

AI systems need both computing and fast connections. Marvell brings custom chips, while Lumentum brings optical chips and networking equipment. Together, these capabilities could support links that move data between AI processors and data centers, which is why Marvell frames the combination as AI connectivity.

The basic mechanism is complementary. Chips can process, route, or manage electrical signals, while optical components use light-based transmission in network links. Lumentum’s advanced laser components are part of this optical capability. The article does not describe a specific product or complete system, so this explanation uses established industry knowledge beyond the article.

Marvell says the combined company would offer products ranging from chips to data centers. Nvidia’s investments reinforce the importance of both sides: it backed Lumentum’s research and fab expansion and Marvell’s optical networking and chips portfolio. If approved, the acquisition could give Marvell a broader connectivity offering for AI infrastructure.

This brief was written by AI from the original reporting and checked by other models. Names, figures and quotes come from the source; read it for full context.