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Efren Lemus


Efren Lemus is an associate in the Private Equity and Mergers & Acquisitions practices. 

His practice focuses on complex corporate transactions, including mergers and acquisitions, private equity investments, joint ventures, commercial arrangements and related general corporate counseling.


Representative matters

SAP in the $12.5 billion sale of Qualtrics International, Inc. to Silver Lake.

Anglo American plc in connection with its business combination between its nuGenTM Zero Emissions Haulage Solution and First Mode Holdings, Inc.

Aegion Corporation, a portfolio company of New Mountain Capital, in its sale of Aegion Energy Services, LLC to Brock Holdings III, LLC, a portfolio company of American Industrial Partners.

J.F. Lehman & Company in connection with:

Published Work

  • Efren Lemus, Comment, When Fingerprints Are Key: Reinstating Privacy to the Privilege Against Self-Incrimination in Light of Fingerprint Encryption in Smartphones, 70 SMU L. Rev. 533 (2017)



Attorney-at-Law, Texas


Georgetown University B.A., magna cum laude

Gates Millennium Scholar

SMU Dedman School of Law J.D., magna cum laude

Articles Editor, SMU Law Review


Spanish, Portuguese

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.