What Is a Tender Offer?
How a Tender Offer Works
The bidder publicly announces its intention to buy shares at a stated price (or price range), sets a deadline, and specifies any conditions — such as a minimum number of shares that must be tendered for the offer to proceed. Shareholders then decide individually whether to “tender” (sell) their shares at the offered price or hold onto them.
The process unfolds as follows:
| Step | What Happens |
|---|---|
| 1. Announcement | Bidder files Schedule TO with the SEC and publicly announces the offer price, conditions, and expiration date |
| 2. Target Response | Target’s board files Schedule 14D-9 within 10 business days, recommending shareholders accept, reject, or remain neutral |
| 3. Offer Period | Shareholders have a minimum of 20 business days to decide whether to tender their shares |
| 4. Withdrawal Rights | Shareholders can withdraw tendered shares at any time before the offer expires |
| 5. Expiration & Settlement | If conditions are met (minimum tender threshold, regulatory clearance), bidder purchases the tendered shares and pays within a few business days |
Types of Tender Offers
| Type | Purpose | Context |
|---|---|---|
| Third-Party (Hostile) | Acquire control of another company without board approval | The bidder goes directly to shareholders, bypassing a resistant board — the classic hostile takeover tool |
| Third-Party (Friendly) | Complete an agreed-upon acquisition faster than a proxy vote | Board endorses the offer; faster than a shareholder meeting because no formal vote is required |
| Self-Tender (Issuer) | Company buys back its own shares | Used for large share repurchases — often at a premium to signal undervaluation or return excess cash |
| Mini-Tender | Acquire less than 5% of a company’s shares | Not subject to most SEC rules — often considered predatory; the SEC warns investors to be cautious |
SEC Rules Governing Tender Offers
Tender offers in the U.S. are heavily regulated under the Williams Act (1968), which amended the Securities Exchange Act of 1934. The rules are designed to protect shareholders by ensuring they have adequate information and time to make informed decisions.
| Rule | Requirement |
|---|---|
| Disclosure (Schedule TO) | Bidder must disclose the offer terms, financing sources, purpose, and plans for the target post-acquisition |
| Minimum Duration | Offer must remain open for at least 20 business days |
| Extension on Change | If the bidder changes the price or percentage sought, the offer must remain open for at least 10 additional business days |
| Best Price Rule | All shareholders must receive the same price — the bidder can’t pay certain shareholders more |
| Withdrawal Rights | Shareholders can withdraw their tendered shares at any time before the offer expires |
| Pro Rata Acceptance | If more shares are tendered than the bidder wants to buy, it must accept proportionally from all tendering shareholders |
Tender Offers vs. Open-Market Purchases
A bidder could theoretically accumulate shares by buying on the open market instead of launching a formal tender offer. But SEC rules effectively force a formal tender offer once the buying becomes organized and substantial. Open-market purchases are slower, can push the price up as the buyer accumulates, and don’t give the buyer the certainty of acquiring a controlling stake by a specific date.
Tender offers solve these problems — they give the bidder a defined timeline, a fixed price, and the ability to condition the purchase on reaching a minimum ownership threshold.
What Happens After a Successful Tender Offer
If the bidder acquires a majority stake through the tender offer, it typically follows up with a “back-end” merger to squeeze out remaining shareholders at the same price. In many states (including Delaware), if the bidder acquires 90% or more of shares, it can execute a “short-form merger” — forcing out remaining shareholders without a vote.
This two-step structure — tender offer followed by back-end merger — is the standard playbook for going-private transactions and leveraged buyouts of public companies.
Key Takeaways
- A tender offer is a public bid to buy shares directly from shareholders at a premium, typically with a minimum acceptance condition.
- Tender offers are used in both hostile takeovers (bypassing the board) and friendly acquisitions (faster than a shareholder vote).
- The Williams Act requires full disclosure, a minimum 20-business-day window, equal treatment of all shareholders, and withdrawal rights.
- Self-tender offers let companies repurchase their own shares — often signaling management believes the stock is undervalued.
- A successful tender offer is usually followed by a back-end merger to acquire the remaining shares.
Frequently Asked Questions
Can shareholders refuse a tender offer?
Yes. Tendering shares is entirely voluntary. Shareholders can choose to hold their stock and reject the offer. However, if the bidder acquires a controlling stake and completes a back-end merger, holdout shareholders will ultimately be forced to sell at the merger price — which is typically the same as the tender offer price.
What is the typical premium in a tender offer?
Tender offers for control of a company typically offer a 20–50% premium over the target’s undisturbed stock price (the price before any deal speculation). The premium compensates shareholders for giving up potential future upside and incentivizes them to tender quickly.
How is a tender offer different from a merger?
A merger requires board approval and a shareholder vote — a slower process. A tender offer goes directly to shareholders without needing a formal vote, making it faster and the preferred tool for hostile bids. In practice, many deals use both: a tender offer to acquire the majority stake, followed by a merger to acquire the rest.
What happens if the minimum tender condition is not met?
The bidder can either extend the offer to give more shareholders time to tender, lower the minimum threshold, increase the offer price to attract more tenders, or withdraw the offer entirely. There’s no obligation to proceed if the minimum condition isn’t satisfied.