antitakeover measure(redirected from porcupine provisions)
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Periodic or continual measures a firm's management takes to discourage unwanted or hostile takeovers. One example of an antitakeover measure is the macaroni defense, in which the company issues a large number of bonds with the proviso that they must be redeemed at a high price if the company is taken over. See also: Shark Watcher.
An action by a firm's management to block or halt a takeover by another party. Examples of antitakeover measures include a fairprice amendment, staggered terms of office for directors, and a requirement for an increased number of affirmative votes from shareholders to approve a takeover. See also show stopper.