Tender Offer
A tender offer is a public invitation by one company to another company’s shareholders to sell (tender) their shares at a specified price within a stated period. Tender offers are the mechanism by which an acquirer attempts to accumulate a controlling stake in a public company, either with the target’s board support (friendly takeover) or against its opposition (hostile takeover). A company may also make a tender offer for its own shares — a share buyback — to return capital to shareholders or support the stock price.
This entry covers tender offers as a share-purchase mechanism. For hostile context, see hostile takeover; for self-tender offers (buybacks), see share buyback; for the other mechanism to acquire a company’s shares, see proxy fight.
How a tender offer works
An acquirer announces a tender offer to buy shares of a target company at a specified price per share. The offer typically remains open for a defined period (often 20 to 60 days), during which shareholders can choose to tender their shares.
Shareholders submit their shares for purchase in accordance with the terms. If the offer is unconditional, the acquirer is obligated to accept all shares tendered and pay for them. More commonly, the offer is conditional: it is contingent on receiving a minimum number of shares (usually a majority or supermajority of outstanding shares), regulatory approval, or satisfaction of other conditions. If those conditions are not met, the acquirer can withdraw and is not obligated to pay.
The conditional structure protects the acquirer from ending up with a minority stake in an unwilling target. As the tender offer deadline approaches, shareholders face pressure: if they believe the offer will succeed, they rush to tender to avoid being left as minority shareholders. If they believe it will fail, they hold out, hoping for a higher competing bid or a white knight to emerge.
Friendly vs. hostile tender offers
Friendly tender offers proceed with the target’s board support. The board endorses the offer and recommends that shareholders tender. These offers almost always succeed because shareholders trust the board’s recommendation. The acquirer and target often negotiate a minimum price and other terms before the offer is publicly announced.
Hostile tender offers proceed without board support. The acquirer goes directly to shareholders, often after the target’s board has rejected the bid or refused to engage. These are riskier and more expensive for the acquirer. Hostile bids frequently fail because shareholders trust the board’s opposition (or at least hesitate to defy it) and because the target has time to erect defences like a poison pill, seek a white knight, or convince shareholders that the offer is insufficient.
Tender offer mechanics and timing
Before announcing a tender offer, the acquirer typically accumulates a stake (often 5-10% of outstanding shares) through open-market purchases. Once the stake crosses 5%, the acquirer must disclose it in a Schedule 13D filing in the US, which triggers the target’s defensive response.
The tender offer itself is governed by detailed regulations. In the US, the SEC’s Williams Act (enacted in 1968 to protect shareholders) requires:
- Disclosure of the bidder’s identity, source of funds, and business plan for the target
- A minimum offer period of typically 20 business days (extendable to 60+ days with competing bids)
- Equal treatment of all shareholders (no side deals at different prices)
- The opportunity for shareholders to withdraw tendered shares if the offer is extended or a competing bid appears
- Prompt payment once conditions are satisfied
Other jurisdictions have similar rules. The UK, EU, and most developed markets have tender offer regulations designed to protect shareholders and ensure orderly auctions when multiple bidders compete.
Two-tier and mini-tender offers
A two-tier tender offer (see two-tier tender offer) is a conditional structure where the acquirer offers one price for shares tendered in the offer period, and a lower price (often debt or less-liquid equity) to shareholders who do not tender. This is designed to coerce shareholders to tender by threatening them with an inferior outcome if they do not. Two-tier offers are now rare because they are viewed as coercive and are heavily regulated.
A mini-tender offer (see mini-tender offer) is a small tender offer for less than 5% of shares, often used by activists or raiders to accumulate stakes without triggering disclosure or regulatory scrutiny. These are now heavily regulated and their use has declined.
The acquirer’s perspective
From the acquirer’s standpoint, a tender offer offers several advantages:
- Direct access to shareholders. The acquirer does not need board cooperation or a proxy fight; it can go directly to the owners.
- Speed. A successful tender offer can be completed in weeks, much faster than negotiating a merger with a reluctant board.
- Leverage. A credible tender offer puts enormous pressure on a target board, often forcing negotiation or a higher counterbid.
The downsides are significant:
- Regulatory risk. Antitrust review, foreign investment review, or other regulatory scrutiny can kill the deal.
- Integration risk. If the target’s management and board are opposed, integration post-close is painful.
- Expense. Legal, advisory, and financing fees mount quickly in a contested tender offer.
- Failure risk. Many hostile tender offers fail, costing the acquirer time and money without a return.
The shareholder’s perspective
Shareholders receiving a tender offer face a prisoner’s dilemma. Tendering locks in a gain at the offer price. Rejecting and holding out hopes for a higher competing bid — but if the offer succeeds without you, you may be left as a minority shareholder in an unfriendly combination, or you may have guessed wrong and the offer fails, leaving you holding stock in a distressed company that is now a takeover target.
Most shareholders rely on their board’s recommendation or on advice from their broker. Major institutional investors often consult proxy advisors for voting and tendering guidance. In a hostile tender offer, these advisors can swing the outcome.
See also
Closely related
- Two-tier tender offer — conditional tender with differential pricing
- Mini-tender offer — small tender for less than 5% of shares
- Hostile takeover — the larger context for hostile tender offers
- Friendly takeover — a tender offer with board support
- Merger — negotiated alternative to a tender offer
- Proxy fight — battle for board control instead of share acquisition
Wider context
- Poison pill — defence against tender offers
- White knight — competing bidder brought in to defeat a hostile tender
- Proxy advisor — influences shareholder tendering decisions
- Share buyback — company’s own tender offer for its shares
- Schedule 13D — disclosure required for tender offers and large stakes