Form of acquisition defense that raises the minimum number of votes required for approval of a merger (e.g., to two-thirds or three-quarters of outstanding shares), implying that a hostile acquirer needs more than 50 percent of the votes to effect a change in control.
Will Dearman is the Editor of TheStrategyBlog. His professional experience includes acquiring and later selling a portfolio of Internet-based companies as well as working as a credit underwriter in Bank of America's commercial middle market bank. His interests include finance, innovation, strategy and social technology. Find him on Twitter!