Often used in risk arbitrage. Examples are golden parachutes , poison pills , safe harbor, and scorched-earth policy. porcupine provision. Amendment to company charter intended to protect it against takeover. Bloomberg Financial Dictionary
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shark repellent ˈshark reˌpellent noun [countable]
informal FINANCE an action that is taken by a company to make an unwanted takeover less likely — see also poison pill
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shark repellent UK US noun [C] FINANCE
► an action by a company to make itself less attractive if another company tries to get control of it: »
Shark repellents often benefit corporate officers more than the stockholders.
Financial and business terms. 2012.