What is a tender offer? How it works for private company shares

A simple definition

A tender offer is an offer to buy shares from existing shareholders at a set price, during a defined window, on uniform terms. Everyone who is eligible sees the same price and the same deadline. Shareholders who want to sell "tender" their shares into the offer; shareholders who don't simply hold.

The term comes from public markets, where tender offers are a standard acquisition mechanism. In private markets, the same structure serves a different purpose: liquidity. A private company, an investor, or a buyer group offers to purchase shares from employees and early holders who otherwise have no practical way to sell.

Why tender offers matter in private markets

Private company shares are hard to sell. There is no exchange, transfers usually require company approval, and finding a buyer at a fair price is a project in itself. A tender offer solves several of these problems at once. The company blesses the transaction, the price is set in advance, and the paperwork follows one process instead of dozens of individually negotiated deals.

That makes tender offers one of the main ways shareholders can access liquidity as companies remain private. Several large private companies have reportedly run them on a recurring basis — SpaceX, for example, has been widely reported to conduct share sales for employees and early investors roughly twice a year. For companies that may remain private, a recurring tender program functions as a release valve: employees get a chance to sell some equity, and the company keeps control over who ends up on its cap table.

The offer is launched

Someone has to organize the offer and fund it. That party may be the company itself (buying back its own shares), an existing investor increasing its position, or a new buyer or group of buyers the company has approved. The organizer sets the terms: the price per share, the total amount of capital available, which share classes qualify, and the window during which shareholders can respond. Eligible shareholders are then formally invited to participate, typically with offer documents that describe the terms and required disclosures.

Sellers review the terms

Shareholders who receive the offer have a defined period — often several weeks — to review it and decide. The key items in any offer document:

• Price per share. Usually a single fixed price, sometimes set relative to a recent funding round.
• Participation limits. Many offers cap how much any individual can sell, often as a percentage of vested holdings.
• Timing, disclosures, and eligibility. When the window closes, what information the buyer and company have provided, and who qualifies — offers frequently distinguish between current employees, former employees, and outside investors.

Shares are accepted and settled

When the window closes, the organizer tallies the tendered shares. If more shares were tendered than the buyer committed to purchase, the offer is prorated — each seller sells a reduced amount. Required approvals are completed, transfer documentation is finalized, and at settlement funds move to sellers while shares move to the buyer. The company updates its cap table, and the process is done. Start to finish, a private company tender offer commonly takes one to three months.

Common seller groups

The sellers are the people who have been holding illiquid stock the longest:

• Employees with vested equity, for whom the offer may be the first real chance to turn years of paper compensation into cash.
• Founders, who sometimes sell a small portion of holdings — a practice investors have grown more comfortable with as private timelines have stretched.
• Early investors, including angels and seed funds whose fund timelines may not match the company's path to exit.

Common buyer groups

On the other side: the company itself, when it wants to repurchase shares or manage dilution from a recent raise; existing investors who want to own more; and new institutional buyers — growth funds, crossover funds, or pooled vehicles organized specifically to purchase shares in the offer.

Tender offer vs. direct sale

A direct secondary sale is a one-off, individually negotiated transaction: one seller, one buyer, one price, one set of transfer approvals. It offers flexibility but puts the burden of finding a buyer, negotiating price, and clearing company approval on the individual seller. A tender offer standardizes all of that. The price is uniform, the process is coordinated, and the company has already agreed to the transfers. The tradeoff is control — sellers in a tender offer take the offered price and terms or pass.

For shareholders in companies that don't run tender offers, a private marketplace is one venue where individually negotiated secondary transactions take place.

Tender offer vs. IPO or acquisition

An IPO or acquisition is a company-level event: the whole business goes public or gets bought, and liquidity arrives for everyone at once. A tender offer is partial by design. The company stays private, most equity stays where it is, and a defined slice changes hands. That partial quality is the point — it lets a company offer its shareholders some liquidity without giving up control of its timeline or its ownership structure.

Pricing and eligibility

Not every holder may be able to sell. Offers can exclude certain share classes, limit former employees, or cap individual participation. And the offered price may differ — in either direction — from what a shareholder expected based on the company's most recent funding round. Preferred shares sold to investors in a primary round carry rights that common shares typically do not, and tender offer pricing often reflects that gap. Reviewing how the price was set, and what it applies to, is the first order of business.

Tax and legal considerations

Selling shares is a taxable event, and the treatment depends on factors specific to each holder: how the equity was acquired, how long it was held, exercise timing for options, and applicable qualified small business stock rules, among others. Transfer restrictions, rights of first refusal, and shareholder agreements also still apply. Shareholders considering a tender offer should consult their own tax and legal advisors before deciding — the offer document is not a substitute for individual advice.

Limited participation

The capital behind an offer is finite. If sellers tender more shares than the buyer committed to purchase, proration kicks in and each participant sells less than requested. Caps on individual participation are common. A shareholder hoping to sell a large position may find the offer accommodates only a fraction of it.

Timing and access constraints

Tender offers happen when someone organizes one, and not before. Many private companies have never run one; others run them irregularly, tied to funding rounds or buyer demand. A shareholder who needs liquidity between offers has no claim on the next one — and no guarantee there will be a next one. This is the structural limit of tender offers as a liquidity path: they are episodic by nature, and access depends entirely on the company's willingness to sponsor or approve them.

Augment's role in this market is infrastructure. Its marketplace supports secondary transactions in private company shares with workflows designed to make timing, pricing context, and process clearer for both sides of a trade. For buyers, Augment also operates a pre-IPO investment platform that pools accredited investor capital into vehicles targeting private companies, including many pre-IPO companies by investor demand.

The thesis behind the product is simple: private market transactions fail more often from friction than from disagreement on price. Structured processes — clear eligibility, documented terms, coordinated approvals — are designed to reduce that friction. Private share transactions remain complex, illiquid, and restricted to accredited investors, but the process around them does not have to be opaque.

Tender offers exist because companies remain private longer than before. They give private companies a way to deliver partial liquidity on their own schedule, and they give employees, founders, and early investors a sanctioned path to sell that doesn't depend on finding a buyer alone.

The structure works best when the terms are clear and the expectations are realistic. Price, eligibility, caps, proration, taxes, transfer restrictions — each one can change what a shareholder actually takes home, and each one deserves review with qualified advisors before any decision. Tender offers are episodic, not on demand. For everything in between, structured secondary markets are where private share liquidity is being built — and that infrastructure is the part of the market Augment works on.