Marvell Technology Group Ltd. headquarters in Santa Clara, California, on Sept. 6, 2024.
David Paul Morris | Bloomberg | Getty Images
Semiconductor company Marvell on Tuesday announced that it will acquire Celestial AI for at least $3.25 billion in cash and stock.
The purchase price could increase to $5.5 billion if Celestial hits revenue milestones, Marvell said.
Marvell shares rose 13% in extended trading Tuesday as the company reported third-quarter earnings that beat expectations and said on the earnings call that it expected data center revenue to rise 25% next year.
The deal is an aggressive move for Marvell to acquire complimentary technology to its semiconductor networking business. The addition of Celestial could enable Marvell to sell more chips and parts to companies that are currently committing to spend hundreds of billions of dollars on infrastructure for AI.
Marvell stock is down 18% so far in 2025 even as semiconductor rivals like Broadcom have seen big valuation increases driven by excitement around artificial intelligence.
Celestial is a startup focused on developing optical interconnect hardware, which it calls a “photonic fabric,” to connect high-performance computers. Celestial was reportedly valued at $2.5 billion in March in a funding round, and Intel CEO Lip-Bu Tan joined the startup’s board in January.
Optical connections are becoming increasingly important because the most advanced AI systems need those parts tie together dozens or hundreds of chips so they can work as one to train and run the biggest large-language models.
Currently, many AI chip connections are done using copper wires, but newer systems are increasingly using optical connections because they can transfer more data faster and enable physically longer cables. Optical connections also cost more.
“This builds on our technology leadership, broadens our addressable market in scale-up connectivity, and accelerates our roadmap to deliver the industry’s most complete connectivity platform for AI and cloud customers,” Marvell CEO Matt Murphy said in a statement.
Marvell said that the first application of Celestial technology would be to connect a system based on “large XPUs,” which are custom AI chips usually made by the companies investing billions in AI infrastructure.
On Tuesday, the company said that it could even integrate Celestial’s optical technology into custom chips, and based on customer traction, the startup’s technology would soon be integrated into custom AI chips and related parts called switches.
Amazon Web Services Vice President Dave Brown said in a statement that Marvell’s acquisition of Celestial will “help further accelerate optical scale-up innovation for next-generation AI deployments.”
The maximum payout for the deal will be triggered if Celestial can record $2 billion in cumulative revenue by the end of fiscal 2029. The deal is expected to close early next year.
In its third-quarter earnings on Tuesday, Marvell earnings of 76 cents per share on $2.08 billion in sales, versus LSEG expectations of 73 cents on $2.07 billion in sales. Marvell said that it expects fourth-quarter revenue to be $2.2 billion, slightly higher than LSEG’s forecast of $2.18 billion.
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