LAWYER PROFILE
Alan M. Klein

Alan M. Klein

Global 2026

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Simpson Thacher & Bartlett LLP
 Simpson Thacher & Bartlett LLP

Ranked in 1 practice area

Corporate/M&A (International & Cross-Border)

USA

7 years ranked

About

Provided by Simpson Thacher & Bartlett LLP

Global

Practice Areas

Alan is a Partner in the Firm's M&A Practice and has previously served as Global Co-Head of the M&A Practice. He represented the Board of Twitter in the company’s sale to Elon Musk. He has advised Microsoft on various transactions, including its acquisition of Activision Blizzard, LinkedIn and Skype, among others. He also represented ChemChina in its acquisition of Syngenta, the largest acquisition ever by a Chinese company; Tyco in its merger with Johnson Controls; and numerous other companies in cutting-edge transactions including The ODP Corporation, Karuna Therapeutics, Cisco, ADT, Best Buy, Wendy’s and Royal Ahold. In addition, he has advised the boards of public companies including Aetna, Xerox, Yahoo and Baker Hughes, among others, on corporate governance matters.

Career

Joined, 1984; Partner, 1993.

Personal

BA, with Honors, Haverford College (1981); JD, cum laude, Harvard Law School (1984).

Chambers Review

Provided by Chambers

Chambers Global Guide

Corporate/M&A (International & Cross-Border) - USA

Band 2
Individual Editorial

Alan Klein specialises in assisting clients with high value M&A, among other matters. He is active in a number of industries, with particular acclaim reserved for his handling of technology transactions.

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