Paul Weiss to launch Silicon Valley office with Sullivan & Cromwell dealmakers

By Reuters News

By David Thomas

- US law firm Paul, Weiss, Rifkind, Wharton & Garrison is launching a new office in Silicon Valley and has hired Nader Mousavi, who represented ChatGPT-maker OpenAI in deals with Microsoft, Alphabet's Google and others, from rival Sullivan & Cromwell.

Mousavi and Mark Schenkel are joining Paul Weiss as partners, according to a person familiar with the matter. Mousavi co-led Sullivan & Cromwell's digital infrastructure, AI and technology groups.

Mousavi and Schenkel did not immediately respond to requests for comment, nor did a spokesperson for Sullivan & Cromwell. Bloomberg Law first reported the moves. Paul Weiss now lists Mousavi and Schenkel on its website along with information about the new Silicon Valley office.

The pair have represented OpenAI and chipmaker Broadcom in a series of deals, including a $50 billion investment into OpenAI by Amazon earlier this year and a multibillion-dollar investment with Microsoft in early 2023.

They also represented Broadcom in a deal that saw Bank of America, Blackstone, Citi and Morgan Stanley provide $63 ​billion in financing to buy Broadcom's AI chips and networking gear for Anthropic. Reuters last month described the transaction as one of the largest debt deals tied to the AI buildout.

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