Robert Langdon

Simpson Thacher & Bartlett LLP

$ $$$

Hanover Street 2475
Palo Alto 94304 CA US

Robert Langdon is a leading M&A lawyer with broad experience representing private equity sponsors, private companies (including portfolio companies) and public companies in high-stakes matters. A Partner in Simpson Thacher’s Corporate Practice, he advises clients in connection with leveraged buyout transactions, mergers, recapitalizations, restructurings and other complex transactions across a wide variety of sectors.

Robert’s recent representations include the following transactions:

  • EQT in multiple transactions, including its $2.35 billion acquisition of Press Ganey (EQT’s first direct equity investment in North America), its $850 million acquisition of Certara and its acquisition of Clinical Innovations
  • Silver Lake in multiple transactions, including its acquisition of at an enterprise value of approximately $2.6 billion and its $300 million investment in Cornerstone OnDemand (Nasdaq: CSOD)
  • Warburg Pincus in multiple transactions, including the $3.4 billion leveraged buyout (with Silver Lake) of Interactive Data Corporation, the $752 million sale of iParadigms to Insight Venture Partners, the leveraged buyout of VistaPharm and the formation and financing of its Helix joint venture with Illumina
  • Silver Lake, Warburg Pincus and Interactive Data Corporation in connection with the $5.2 billion sale of Interactive Data Corporation to Intercontinental Exchange
  • Technology Crossover Ventures and True Wind Capital in multiple transactions, including True Wind’s recent leveraged recapitalization of Transflo

Prior to joining Simpson Thacher, Robert was a partner at Willkie Farr & Gallagher LLP. He received his J.D. from St. John’s University School of Law, and his B.S. from Syracuse University. He is admitted to practice in California and New York.


  • St. John’s University School of Law, 2000 J.D.
  • Syracuse University, 1996 B.S.


  • California 2016
  • New York 2001


Rate : $$$$

Contact for details

Rate and write a review

Your email address will not be published. Required fields are marked *

Is this your profile?Claim it now.

Make sure your information is up to date.
Hanover Street 2475
Palo Alto 94304 CA US
Get directions

Lina Stillman

Broadway 42
New York 10006 NY US