Advanced Finance

Tender Offers and Takeover Defence

Run — or survive — a hostile bid: the disclosure clock, the offer rules, the pill mechanics that make an acquirer's stake evaporate, and the standard a Delaware court will apply to everything the board does.

  • Advanced
  • 8 min total
  • 13 chapters

What decision this helps you make: Whether to go over a board's head to its shareholders, what defences will meet you there, and which of them a court will actually let stand.

What this topic is

A tender offer is a bid made directly to a company's shareholders to buy their shares, usually at a premium, bypassing the board entirely. Takeover defence is the set of structural, legal, and tactical devices a board uses to control that process — of which the shareholder rights plan, universally called the poison pill, is by far the most powerful.

Why it matters

Control of a public company is contested through a specific machinery: filing deadlines, minimum offer periods, all-holders rules, a statute that freezes an unwelcome buyer out for three years, and a body of Delaware case law that decides how far a board may go to stop a bid. Knowing that machinery is the difference between a credible campaign and an expensive gesture — on either side of it.

Who should learn it

Practitioners working on public-company M&A, activist and event-driven investors, directors of listed companies, and anyone who needs to understand why a bid at a large premium can be refused and stay refused.

What you will understand

  • The disclosure and offer rules: Schedule 13D, Schedule TO, the twenty-business-day clock, all-holders and best-price
  • Exactly how a rights plan dilutes a bidder, and why it is never actually triggered
  • The defence stack — pill, classified board, section 203, bylaws — and how the pieces reinforce each other
  • Unocal, Revlon, and Airgas: the standards that decide whether a defence survives review

Prerequisites

Common misconception

"A big enough premium wins — shareholders will tender and the board cannot stop them." The board can stop them, indefinitely, and Delaware has said so. A rights plan makes the shares practically unbuyable; the shareholders who want the money cannot accept it while the plan is in place. The only reliable route runs through the boardroom: elect directors who will redeem the pill. Premium buys votes in that election. It does not buy shares.