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

Quick Facts

• Marvell Technology agreed to acquire Lumentum in an all-stock deal valued at $115 billion, including debt, with an equity value of roughly $102 billion.
• Lumentum stockholders will receive 4.5 shares of Marvell stock for each share they hold, a 23.9% premium over the Oct. 28, 2026, closing price.
• The companies expect more than $1 billion in annual run-rate cost synergies and forecast the deal will add to Marvell's non-GAAP earnings per share in the first year after closing.

Marvell Technology and Lumentum announced on Nov. 2, 2026, that they had signed a definitive agreement for Marvell to acquire the optical components maker in one of the largest technology acquisitions ever recorded. The deal surpasses Microsoft's $68.7 billion purchase of Activision Blizzard in 2022 and Dell's $67 billion acquisition of EMC in 2016.

Bloomberg data shows the transaction is the largest M&A deal of 2026 by equity value and the largest ever in the global tech sector, excluding the SpaceX-xAI merger. Bloomberg first reported the tie-up before the official announcement.

Deal Structure

Under the merger agreement, dated Nov. 1, 2026, Lumentum stockholders will receive a fixed exchange ratio of 4.5 Marvell shares per Lumentum share. That implies a price of roughly $1,132 per Lumentum share, a 23.9% premium over Oct. 28 closing prices, the last trading day before market speculation surfaced.

After closing, current Marvell stockholders will own approximately 67% of the combined company on a fully diluted basis. Lumentum stockholders will hold the remaining 33%. Both boards unanimously approved the agreement.

Three Lumentum directors, including Lumentum CEO Michael Hurlston, will join Marvell's seven-member board. Marvell CEO Matt Murphy will remain chairman and CEO. The deal is expected to close in the first half of 2028, pending regulatory and shareholder approvals.

Why Optical Connectivity

The strategic case centers on AI data center infrastructure. Rapidly growing bandwidth demands and the physical limits of copper-based wiring are pushing hyperscalers toward optical connectivity. As AI clusters scale to more complex architectures, tighter co-design of electrical and optical components becomes necessary.

Marvell brings semiconductor design, networking chips, and custom silicon. Lumentum adds high-performance lasers, optical transceivers, optical circuit switching, and compound semiconductor manufacturing using indium phosphide. SEC filings related to the transaction describe plans for heterogeneous integration and next-generation optical technologies after closing.

"AI infrastructure is undergoing a fundamental architectural shift toward optical connectivity, creating an opportunity that comes along once in a generation," Murphy said in the official announcement. Murphy told Fox Business he has received "tremendous support" from hyperscalers and expects "significant" revenue synergies.

Hurlston framed the deal around the convergence of optics and electronics. "As the industry moves to scale-up and scale-in, a much tighter integration is required, and simple patchworks no longer suffice," he wrote in an employee email filed with the SEC. The companies cite a combined total addressable market of $550 billion.

Financial Picture

Marvell's annual revenue more than doubled from $3 billion in fiscal 2021 to $8.2 billion in fiscal 2026. Lumentum posted fiscal 2026 revenue of roughly $3 billion, an 83.2% year-over-year increase. Alongside the deal announcement, Lumentum reported $1.26 billion in first-quarter revenue, beating analyst estimates, and guided fiscal second-quarter revenue of $1.58 billion to $1.63 billion against a $1.48 billion consensus.

Marvell said its own revenue for the quarter ended Oct. 31 came in line with prior guidance. CFO Dan Durn said on the analyst call that the joint teams have already identified a total addressable market opportunity larger than the $1 billion cost synergy figure. The companies also expect the combination to improve long-term non-GAAP gross and operating margins.

What It Means for the Market

The all-stock structure means Marvell does not need to raise debt or spend cash reserves to close, preserving financial flexibility during the lengthy regulatory review expected before the 2028 target date. For hyperscalers and AI infrastructure builders, a combined Marvell-Lumentum would represent a single integrated supplier across semiconductor design, custom silicon, and high-speed optical components. That position could accelerate product timelines and reduce supply chain fragmentation for customers building out large-scale AI clusters.