Raiders and Activists Boards of Directors, Institutional Investors, Shareholder activism, Short-termism, Takeover defenses, Takeovers, Target firms More from: Martin Lipton, Sabastian Niles, Theodore N. Mirvis , Wachtell Lipton Martin Lipton is a founding partner of Wachtell, Lipton, Rosen & Katz, specializing in mergers and acquisitions and matters affecting corporate policy and strategy. This post is based on a Wachtell Lipton memorandum by Mr. Lipton, Theodore N. Mirvis, and Sabastian V. Niles.