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Michael B. Tumas

Chair
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Michael Tumas is Chair of the firm’s Executive Committee as well as a past chair of the Corporate Group. The current edition of Chambers USA notes his “incredible breath of knowledge and experience” as well as his “great judgment.” He concentrates his practice in the area of corporate law with specific emphasis on mergers and acquisitions, issues of internal governance, and commercial transactions involving Delaware corporations and other business entities. Michael’s practice often involves counseling boards of directors and special committees of boards of directors regarding their duties, fiduciary and otherwise. In addition, he advises clients with respect to responding to unsolicited acquisition proposals, stockholder activist approaches and other preparedness matters, board governance and other corporate law matters. Michael also has extensive experience in representing both sellers and buyers in negotiated acquisitions of divisions, assets and businesses.

Representative Matters

  • UnitedHealth in its acquisition of The Advisory Board Company's health care business
  • Liberty Interactive in its acquisition of HSN
  • Liberty Interactive in its acquisition of General Communication
  • E. I. du Pont de Nemours and Company in its asset swap with FMC
  • VCA in connection with its acquisition by Mars
  • UnitedHealth in connection with its acquisition of Surgical Care Affiliates
  • Board of Directors of NRG Energy in connection with its cooperation agreement with activist investors

  • Liberty Media in connection with its acquisition of Formula 1
  • Starz in connection with its acquisition by Lions Gate
  • Zayo in connection with its acquisition of Electric Lighthouse
  • Intercontinental Exchange in connection with its acquisition of Interactive Data Corporation
  • Liberty Interactive in connection with its acquisition of zulily
  • Google in connection with its corporate reorganization to form its new holding company, Alphabet
  • Liberty Broadband in connection with the proposed acquisition of Time Warner Cable by Charter Communications
  • Williams Companies in its merger of Williams Partners LP and Access Midstream Partners LP
  • Conflicts Committee of OCI Resources LP in connection with OCI Enterprises Inc. disposition of general and limited partner interests
  • E. I. du Pont de Nemours and Company in connection with its acquisition of Pannar, a South Africa based seed company with operations throughout Africa
  • Special Committee of Rue 21 in connection with the acquisition of Rue 21 by APAX
  • Intercontinental Exchange in connection with its acquisition of NYSE Euronext
  • Board of Directors of NRG Energy in connection with its merger with GenOn Energy
  • E. I. du Pont de Nemours and Company in its acquisition of Innovalight, Inc.

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Events & Speaking Engagements

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Education

  • University of Pennsylvania Law School, J.D., 1984
  • The State University of New York at Binghamton, B.A., 1981

Bar & Court Admissions

  • Delaware, 1984

Professional Activities and Honors

  • Listed in Chambers USA: America's Leading Lawyers for Business, Lawdragon's 500 Leading Dealmakers, The Best Lawyers in America and Delaware Super Lawyers 
  • Leadership Council on Legal Diversity
  • Received an AV® rating in Martindale-Hubbell's peer review certification
  • Delaware State Bar Association
  • American Bar Association, Business Law Section
  • Society of Corporate Secretaries & Governance Professionals