Hostile Takeover
A hostile takeover is an acquisition attempt in which the acquiring company pursues control of a target without the consent or cooperation of the target's board of directors, typically by going directly to shareholders through a tender offer or proxy fight.
A hostile takeover occurs when an acquirer decides to bypass the target company's board and management to gain control. The board may have rejected earlier overtures, set an unacceptable price, or simply refused to negotiate — leaving the acquirer to appeal directly to shareholders, who ultimately hold the power to sell their shares or vote for board replacements.
The two primary tools of a hostile takeover are the tender offer and the proxy fight, and they are often used in combination. In a tender offer, the acquirer publicly proposes to purchase shares directly from existing shareholders at a premium to the current market price, bypassing the board entirely. Shareholders who tender their shares effectively override the board's resistance. In a proxy fight, the acquirer solicits support from fellow shareholders to replace incumbent directors with nominees who will approve the transaction. Winning enough board seats gives the acquirer the votes needed to push the deal through from the inside.
Target boards have developed a variety of defensive measures to resist hostile bids. The most powerful is the shareholder rights plan, colloquially called a 'poison pill,' which dilutes the acquirer's ownership stake if it crosses a specified threshold — typically 15% to 20% — making further accumulation prohibitively expensive. Staggered boards, where only one-third of directors stand for election each year, slow a proxy fight by preventing the acquirer from replacing the entire board in a single vote. Golden parachutes — large executive severance packages triggered by a change of control — add a financial deterrent by raising the cost of completing the deal.
US courts, particularly Delaware courts, have developed a substantial body of case law governing the duties of target boards facing hostile bids. The Unocal standard requires boards to demonstrate that any defensive measure is proportionate to the threat posed by the bid. The Revlon doctrine requires boards to maximize shareholder value once a sale of the company becomes inevitable, preventing boards from simply entrenching themselves at shareholders' expense.
Hostile takeovers carry significant execution risk. Without access to the target's confidential financial data, the acquirer must bid based on public information, creating the risk of overpaying or missing material liabilities. Integration also becomes more difficult when acquired management teams are hostile or depart immediately after closing. For these reasons, most large M&A transactions are structured as friendly mergers, and hostile deals represent a small fraction of overall deal volume — though the threat of a hostile bid frequently brings resistant boards back to the negotiating table.