Kenneth Wallach

Simpson Thacher & Bartlett LLP

$ $$$

Lexington Avenue 425
New York 10017 NY US

Kenneth B. Wallach is a Corporate Partner in the Firm’s New York office. Ken focuses his practice on corporate finance transactions. He has also advised clients on mergers and acquisitions transactions. He has represented issuers, private equity sponsors and underwriters in high yield bond offerings, initial public offerings, investment grade debt offerings, follow-on equity offerings, restructurings and other corporate finance transactions.

Ken has been recognized by The Legal 500 and Chambers USA, where he was cited “as one of the firm’s next generation of leading specialists and an attorney who can easily take on extremely complicated deals.”

Ken also regularly advises clients with respect to corporate governance, securities laws and general corporate matters. He has also represented corporations and private equity sponsors in a variety of leveraged buyouts, mergers, acquisitions, dispositions, spin-offs, joint ventures and other business combination transactions.

Ken advises, among others, Weight Watchers, Mars, Wrigley, Dell, Blue Buffalo, Symantec, Walgreens Boots Alliance, Garda World Security, Assured Partners, Drummond, Cooper-Standard, K2M, Patheon, Silver Lake Partners, Apax Partners, The Invus Group, JLL Partners and Barclays Capital.

Ken’s recent transactions include:

  • Symantec in connection with the financing of its $2.3 billion acquisition of LifeLock
  • Wm. Wrigley Jr. Company in connection with various debt refinancing transactions, including a $3 billion debt offering
  • Apax Partners in connection with various leveraged buyouts and refinancing transactions, including Garda World Security, Assured Partners and Acelity
  • Walgreens Boots Alliance, Inc. in connection with the financing of its purchase of 1,932 Rite Aid Corporation stores for $4.157 billion
  • Underwriters in high yield offerings by Linn Energy, Ultra Petroleum, NGPL, MEG Energy, SandRidge Energy, WPX Energy and Teine Energy
  •  Initial purchasers in Qualcomm’s inaugural $10 billion investment grade bond offering

Ken recently coauthored the “Securities” chapter in Successful Partnering Between Inside and Outside Counsel, a joint project of Thomson Reuters/West and the Association of Corporate Counsel (ACC). The chapter provides in-house counsel with a practical primer on what they need to know to advise their companies with respect to securities law matters and to effectively and efficiently work with outside securities counsel on such matters.

Ken joined Simpson Thacher in 1993. Ken practiced in the Firm’s London office from 1995 to 1998, where he worked on a number of international corporate finance and merger and acquisition transactions. He received his B.A. from Duke University, magna cum laude, in 1990 and was a member of Phi Beta Kappa. He received his J.D. from the University of Virginia School of Law in 1993. He is admitted to practice in New York.


  • University of Virginia School of Law, 1993 J.D.
  • Duke University, 1990 B.A.
    • magna cum laude; Phi Beta Kappa

Admissions : New York 1994


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Lexington Avenue 425
New York 10017 NY US
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Lina Stillman

Broadway 42
New York 10006 NY US