What Is a Tender Offer? How It Works for Stock and Acquisitions

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A tender offer is a public offer to buy shares directly from a company’s shareholders at a stated price, for a limited period, usually at a premium to the market price. The buyer can be another company, an investor group, or the issuing company itself repurchasing its own stock. To “tender” shares means to submit them for sale into that offer. Unlike a merger, which needs a board agreement and a shareholder vote, a tender offer goes straight to the owners of the stock, and each holder decides individually whether to sell.

How a Tender Offer Works

The bidder announces the offer, files disclosure documents with the SEC (Schedule TO for most offers), and sends shareholders the offer terms along with a letter of transmittal, the form used to tender. Investors who hold shares through a broker give their instructions to the broker instead.

U.S. offers are regulated by the SEC under the Williams Act of 1968, which added disclosure, timing and equal-treatment rules to the Securities Exchange Act of 1934. Key rules:

• Minimum offer period: the offer must stay open for at least 20 business days. If the bidder changes the price or the percentage of shares sought, the offer must remain open at least 10 more business days.
• Withdrawal rights: shareholders can generally withdraw tendered shares while the offer is still open. Once the offer expires and shares are accepted for payment, the sale is final.
• All-holders and best-price rule: the offer must be open to all holders of the class, and everyone whose shares are bought receives the highest price paid. If the bidder raises the price, holders who tendered at the earlier price also get the higher one.
• Proration: if more shares are tendered than the bidder wants, it buys from each tendering holder on a pro rata basis rather than first come, first served.
• Ownership disclosure: anyone who acquires more than 5% of a company’s registered equity must disclose the stake to the SEC, the company and the exchange.

Conditions and escape clauses

A bidder seeking control usually makes the offer conditional on receiving a minimum number of shares, often enough for a majority. Other common conditions include financing and antitrust clearance. If a government agency blocks the deal on competition grounds, the escape clause lets the bidder decline to buy, and the tendered shares are returned to their owners.

Interpreting the price after an announcement

Once an offer is announced, the target’s stock typically trades close to, but below, the offer price. That gap, the spread, reflects the time until payment and the chance the deal fails. As conditions are satisfied and the closing date approaches, the spread tends to narrow. A wide spread signals that the market doubts the offer will complete on its stated terms.

Example of a Tender Offer

Hypothetical example, for illustration only.

Company A trades at $15 per share. An acquirer announces a cash tender offer at $18 per share, conditional on receiving at least 51% of the outstanding shares. The premium is:

Premium = (Offer price − Market price) ÷ Market price = ($18 − $15) ÷ $15 = 20%

After the announcement, suppose the stock trades at $17.40. The spread is $0.60, or about 3.4% of the current price, which a buyer at $17.40 earns only if the deal closes at $18.

Now consider an issuer buyback version. A company offers to repurchase 10 million of its own shares, and 15 million are tendered. The proration factor is 10 ÷ 15 = two-thirds. A holder who tendered 900 shares sells 600, and the remaining 300 are returned. This assumes no odd-lot priority or other special terms, which some offers include.

Common Types of Tender Offers

• Third-party tender offer: an outside buyer, such as another company, a private equity firm, a hedge fund or a management-led group, bids for the shares. When the target’s board has not agreed, it is a hostile tender offer.
• Issuer tender offer (self-tender): the company buys back its own stock. A Dutch auction variant sets a price range; shareholders name the price at which they will sell, and the company pays the lowest price that lets it buy the number of shares it wants.
• Exchange offer: the buyer offers other securities, such as its own stock, instead of or alongside cash.
• Debt tender offer: a company offers to repurchase or retire its outstanding bonds or notes, often to refinance or reduce debt.
• Employee or private-company tender offer: a private company or an investor buys shares from employees and early holders, giving them liquidity before any IPO.
• Mini-tender offer: an offer for less than 5% of a company’s shares. These offers avoid many of the protections above, and the SEC has warned investors that some are priced below market.

Why Tender Offers Are Used

For a bidder, a tender offer can deliver control faster than a merger vote, sometimes within about a month if holders accept. The bidder is not obligated to pay until the minimum condition is met, so it avoids buying a large partial stake that it might later have to unwind if the bid fails. A hostile bidder can also bypass a board that refuses to negotiate.

For an issuer, a self-tender returns cash to holders and reduces the share count, which changes per-share metrics such as earnings per share and return on equity.

Limitations and Risks

• Cost: SEC filing fees, legal counsel, depositary and information agents, and financing make tender offers expensive, especially contested ones.
• Competing bids: in a hostile situation, rival bidders or defenses such as a poison pill can push the price up or block the deal entirely.
• No guarantee of completion: if a condition fails, holders get their shares back but may have missed other trading opportunities in the meantime.
• Timing: payment waits for the depositary to verify tendered shares after the offer expires.
• Taxes: in a cash offer, tendered shares are generally treated as a taxable sale.
• Holdouts: tendering is voluntary, but shareholders who do not tender may remain owners of a company with a new controlling holder. Often they are later cashed out in a follow-up merger, sometimes at the same price.

Tender Offer vs. Merger vs. Open-Market Buyback

The Bottom Line

Shareholders who receive a tender offer decide individually whether to sell, so the terms deserve a close read. Check the minimum share condition, financing and antitrust clauses, and the spread between the stock and the offer price, which shows how likely the market thinks the deal is to close. Be cautious with mini-tender offers for less than 5% of shares, since some are priced below market.