Wachtell Lipton was founded on a handshake in 1965 as a small group of lawyers dedicated to providing advice and expertise at the highest levels. We have achieved extraordinary results following the distinctive vision of our founders -- a cohesive team of lawyers intensely focused on solving our clients' most important problems.
Our distinctive structure defines our approach.  We maintain a ratio of associates to partners significantly below that of other firms.  We focus on matters that require the attention, extensive experience and sophistication of our partners.
We have experience in the fields of mergers and acquisitions, strategic investments, takeovers and takeover defense, corporate and securities law and corporate governance. We handle some of the largest, most complex and demanding transactions in the United States and around the world.
Wachtell Lipton is dedicated to providing advice and expertise at the highest levels and achieving extraordinary results for our clients. We seek individuals who are talented, motivated and committed in order to maintain our record of excellence.
Lam, David K.
Partner, Corporate
tel 212.403.1394
fax 212.403.2394


  • Yale University, B.A. 1997, summa cum laude
  • Yale Law School, J.D. 2000, (Managing Editor, Yale Law Journal and Articles Editor, Yale Journal on Regulation)


  • Honorable José A. Cabranes, United States Court of Appeals, Second Circuit, 2000 - 2001

David K. Lam is a corporate partner at Wachtell, Lipton, Rosen & Katz. He focuses on mergers and acquisitions, securities transactions and corporate governance. His practice has included a wide range of matters, including public and private acquisitions and divestitures, domestic and international transactions, carve-out IPOs, spin-offs, split-offs, joint venture transactions and private equity transactions. He also advises numerous companies on takeover defenses, proxy contests and corporate governance matters.

David was selected by The American Lawyer as a Dealmaker of the Year for 2012 and also for 2015, and by AmLaw Daily as a Dealmaker of the Week in 2015. He is also listed as a Super Lawyer in the area of mergers and acquisitions by Super Lawyers magazine. David is a frequent speaker at professional conferences, serving as co-chair of the American Law Institute CLE’s “Corporate Mergers and Acquisitions” program in New York.

David received his B.A. (economics and molecular biophysics & biochemistry) summa cum laude from Yale University, where he was awarded the Arthur Twining Hadley Prize and Russell Henry Chittenden Prize for the highest GPA. He received his J.D. from Yale Law School, where he served as managing editor of the Yale Law Journal and articles editor of the Yale Journal on Regulation. Upon graduation from law school, Mr. Lam served as a law clerk to the Honorable José A. Cabranes of the U.S. Court of Appeals for the Second Circuit.

He has represented clients in a variety of industries, including:

Health Care/Pharmaceuticals

  • Abbott Laboratories in its $25 billion acquisition of St. Jude Medical, its $4.3 billion sale of its vision care business to Johnson & Johnson and its $55 billion spin-off of AbbVie
  • Pfizer in its agreed $160 billion acquisition of Allergan plc and in its $5.2 billion acquisition of Anacor Pharmaceuticals
  • AbbVie in its $21 billion acquisition of Pharmacyclics
  • CareFusion in its $12.2 billion sale to Becton Dickinson
  • GlaxoSmithKline in its unsolicited offer and $3.6 billion acquisition of Human Genome Sciences
  • The Wyeth board of directors in its $68 billion merger with Pfizer
  • Cardinal Health in its $1.9 billion acquisition of Cordis from Johnson & Johnson, its joint venture transaction with CVS Caremark, its $2.1 billion acquisition of Assuramed, its $1.3 billion acquisition of Kinray, its $1.5 billion acquisition of VIASYS Healthcare, its $3.3 billion sale of its Pharmacology Technology Business to an affiliate of the Blackstone Group, its acquisition of P4 Healthcare Solutions, and in its $4.1 billion spin-off of CareFusion Corporation
  • Sanofi in its successful €47.8 billion hostile exchange offer for Aventis


  • Seventy Seven Energy Inc. in its $2.1 billion sale to Patterson-UTI Energy
  • Energy Transfer Equity in its agreed $37.7 billion combination with The Williams Companies
  • Atlas Pipeline Partners and Atlas Energy in their $7.7 billion sale to Targa Resources Partners and Targa Resources Corp
  • Berry Petroleum in its $2.5 billion sale to LINN Energy and LinnCo
  • Sunoco in its $5.3 billion sale to Energy Transfer Partners and in its IPO and spin-off of SunCoke Energy, a $1.2 billion company
  • Atlas Energy in its $4.3 billion sale to Chevron, its $1.7 billion joint venture with Reliance Industries, and in the formation of its master limited partnership, Atlas Resource Partners
  • Acciona in its €43.7 billion acquisition with Enel of Endesa

Financial Services

  • Nasdaq in its $1.1 billion acquisition of International Securities Exchange from Deutsche Börse
  • BGC Partners in its successful hostile acquisition of GFI Group, its $650 million sale of Trayport to Intercontinental Exchange, its $1.234 billion sale of its electronic trading business in U.S. Treasury securities to The NASDAQ OMX Group, Inc. and in its $1.4 billion reorganization and merger with eSpeed
  • New York Stock Exchange in its agreed $23.4 billion cross-border combination with Deutsche Börse, its $10 billion cross-border combination with Euronext N.V. and its merger with Archipelago
  • MetLife in the sale of its depositary business to GE Capital Retail Bank, its $1.6 billion split-off of its interest in Reinsurance Group of America and its sale of State Street Research & Management Company to BlackRock
  • Warburg Pincus in its purchase and sale of equity in Primerica from Citigroup
  • Lazard in connection with its IPO and related restructuring transactions
  • JPMorgan Chase & Co. in its acquisition of the banking business of The Bank of New York in exchange for JPMorgan Chase’s corporate trust business, and in the restructuring of its joint venture with First Data Corporation
  • Bank of America in its $21 billion acquisition of ABN Amro’s LaSalle Bank
  • Golden West Financial in its $25.5 billion sale to Wachovia


  • Johnson Controls in its $16.5 billion merger with Tyco International, its spin-off of Adient, its automotive business, its $1.48 billion sale of its global workplace solutions business to CBRE Group, and its $965 million sale of its automotive electronics business to Gentex and Visteon
  • Rayonier in its spin-off of its performance fibers business
  • XPO Logistics in its $652 million acquisition of New Breed and in its $335 million acquisition of Pacer International

Real Estate

  • Washington Prime Group in its $4.3 billion acquisition of Glimcher Realty Trust
  • AMB Property Corporation in its $15 billion merger with ProLogis
  • Sunrise Senior Living in its $3.4 billion sale to Health Care REIT
  • The Mills Corporation in its $7.8 billion sale to Simon Property Group and Farallon Capital


  • Monsanto in its $66 billion sale to Bayer

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