A secondary sale is the transfer of already-issued private company shares from one investor or shareholder to another, with none of the proceeds going to the company that issued the stock. It gives founders, early employees, and fund investors a way to turn illiquid shares into cash before an IPO or acquisition. The company’s share count does not change, and the entire purchase price moves from the buyer to the selling shareholder.
Secondary Sale vs. Primary Sale
The difference is where the money ends up. In a primary sale, the company creates new shares and sells them to investors; the cash funds operations, hiring, or expansion. A Series A round where a startup issues fresh equity to a venture fund is a primary sale, and the share count goes up.
In a secondary sale, one shareholder sells existing shares to another buyer. The company receives nothing, and the outstanding share count stays flat. When an early employee sells vested shares to a private equity firm, or a venture fund offloads part of its position to a sovereign wealth fund, that is a secondary.
Some financing rounds blend both. A company might issue new shares to raise capital (the primary component) while allowing a few early investors or employees to sell some of their holdings to the same buyer group (the secondary component). The mechanics and the regulatory treatment differ for each portion even though both close at the same table.
Why People Sell and Why Buyers Buy
Sellers want liquidity from an asset they cannot otherwise convert to cash. Early employees and founders often have the bulk of their net worth tied up in shares that do not trade on any exchange. A secondary lets them diversify, cover living expenses, or pay a tax bill triggered by exercising stock options without waiting for an exit that may never come.
Institutional sellers have different pressures. A venture fund nearing the end of its term needs to return money to its limited partners. Selling part of a successful position through a secondary lets the fund lock in returns, reduce concentration risk, and show a measurable internal rate of return before the full exit.
Buyers are motivated by access. Purchasing shares on the secondary market gets an investor exposure to a high-growth private company without waiting for the next primary round or competing in an oversubscribed one. Buyers often believe they are getting shares at a discount to where the company will eventually trade publicly.
How the Transaction Gets Structured
The simplest structure is a direct negotiated sale between two parties. A selling shareholder and a buyer agree on a price, sign a stock purchase agreement, and transfer the shares once the company approves the deal. This is common for large blocks moving between institutional investors.
Tender offers are the usual tool when a company wants to let employees access liquidity in a controlled way. A third-party buyer, or sometimes the company itself, offers to purchase shares from a defined group of shareholders at a fixed price. Employees submit their shares into the tender, and the deal closes on a set schedule. Tender offers standardize pricing and documentation across many small sellers.
Dedicated secondary-market platforms are the third channel. These online marketplaces match buyers and sellers of private company stock, handle compliance paperwork, and typically require the company’s consent before any transfer closes. They work best for smaller, fragmented blocks where neither side has the connections to negotiate directly. Platform fees usually run 2% to 5% of transaction value.
What the Shares Are Actually Worth
Secondary shares rarely trade at the same price as the company’s last primary round. Private shares carry transfer restrictions and limited liquidity that public stock does not, so buyers usually demand a discount. Discounts of 20% to 30% relative to the last primary valuation are common for companies on a normal growth path. Shares in companies with stale valuations from peak-era rounds or shaky revenue can trade at discounts of 40% to 60%.
The discount narrows, and can flip to a premium, when recent performance has clearly outpaced the last official valuation. A company that doubled revenue since its last round and has a credible IPO timeline within 12 months may see secondaries price at or above the last round. Buyers are paying for increased certainty that the exit will happen.
Several factors push the price in either direction:
- Proximity to an IPO or acquisition. The closer a company is to a public listing, the smaller the discount buyers can demand.
- Block size. Larger blocks often trade at a slightly steeper discount because fewer buyers can absorb the whole position.
- Share class and preferences. Common shares typically trade at a larger discount than preferred, because preferred stock carries liquidation preferences and other protective rights.
- Broader market conditions. When the IPO window is closed, secondary discounts widen across the board.
Contractual Restrictions That Can Block the Sale
Private company shares come wrapped in contractual restrictions designed to keep the company in control of who owns its stock. Working through these before you negotiate a price is where most deals either close or fall apart.
Right of First Refusal
Virtually every venture-backed company’s shareholder agreement includes a right of first refusal, or ROFR. When a shareholder finds a willing buyer and agrees on a price, the company and sometimes its existing investors get the right to step in and buy those shares on the same terms. The selling shareholder has to notify the company and wait for the ROFR holders to accept or waive before closing with the outside buyer. The process can add weeks or months.
Co-Sale Rights
Co-sale rights, also called tag-along rights, let other shareholders piggyback on a sale. If a major shareholder negotiates a secondary deal, minority holders with co-sale rights can demand the chance to sell a proportional amount of their own shares into the same transaction on the same terms. That protects smaller shareholders but increases the total block the buyer has to absorb.
Lock-Ups and Board Approval
Many agreements prohibit transfers for a set period after a primary round or an equity grant. Even after a lock-up expires, nearly every private company requires formal board approval before any transfer closes. The board uses that gatekeeping power to track its cap table, enforce its contractual rights, and screen prospective new shareholders.
Securities Law Exemptions
Every sale of a security in the United States has to be either registered with the SEC or exempt from registration. Private secondary sales are not registered, so the parties need to identify which exemption applies. Sellers who skip this analysis can create real liability for themselves.
Section 4(a)(1) and the “4(a)(1½)” Exemption
The usual starting point is Section 4(a)(1) of the Securities Act, which exempts “transactions by any person other than an issuer, underwriter, or dealer.”1Office of the Law Revision Counsel. 15 U.S. Code 77d – Exempted Transactions A shareholder selling their own shares is not an issuer and is not a dealer, so the question becomes whether they count as an “underwriter.” If the seller acquired the shares as an investment and is reselling privately to a sophisticated buyer, they generally are not an underwriter and the exemption applies.
In practice, lawyers often structure private resales under what is informally called the “Section 4(a)(1½)” exemption. It is not a separate statute but a hybrid approach combining Section 4(a)(1)’s non-underwriter exemption with Section 4(a)(2)’s requirements for private placements. The sale has to be genuinely private, limited to a small number of sophisticated or accredited buyers, and conducted without general solicitation.
Section 4(a)(7)
Congress codified a more formal safe harbor in 2015. Section 4(a)(7) provides a specific exemption for resales of restricted securities to accredited investors, with conditions on how the securities are marketed and what information must be provided to prospective buyers.2U.S. Securities and Exchange Commission. Private Secondary Markets It gives sellers and their counsel a clearer checklist than the informal 4(a)(1½) framework.
Rule 144
Rule 144 is a separate safe harbor, mainly relevant when restricted or control securities will be resold into a public market. It requires a minimum holding period before resale: six months for securities issued by SEC-reporting companies, and one year for securities issued by non-reporting companies, which covers most private startups.3U.S. Securities and Exchange Commission. Rule 144 – Selling Restricted and Control Securities Affiliates of the issuer also face volume limitations that cap how many shares they can sell in any three-month period.4eCFR. 17 CFR 230.144 – Persons Deemed Not to Be Engaged in a Distribution and Therefore Not Underwriters
Regulation D Does Not Apply
A common misconception worth flagging. Regulation D exemptions are available only to the issuer of the securities, not to shareholders reselling them. The regulation itself states that it “provides an exemption only for the transactions in which the securities are offered or sold by the issuer, not for the securities themselves.”5eCFR. 17 CFR Part 230 – Regulation D – Rules Governing the Limited Offer and Sale of Securities Without Registration A secondary seller cannot rely on Rule 506 or any other Regulation D provision to exempt the resale.
Anti-Fraud Rules Apply to Every Deal
Whatever registration exemption a secondary sale uses, federal anti-fraud rules apply in full. SEC Rule 10b-5 makes it unlawful for any person to make an untrue statement of material fact, omit a material fact that would make other statements misleading, or engage in any act that operates as fraud in connection with the purchase or sale of any security.6eCFR. 17 CFR 240.10b-5 – Employment of Manipulative and Deceptive Devices Both sides of a private secondary have an obligation not to lie about or conceal material information.
The risk is sharpest for sellers who are company insiders. A founder or executive who sells shares while aware of material nonpublic information, such as a failed product launch, a major customer loss, or an impending down round, can face SEC enforcement action and private lawsuits. Insiders who plan to sell sometimes adopt written trading plans under Rule 10b5-1 before they become aware of any material nonpublic information, which can provide an affirmative defense against insider trading claims if the plan is properly structured.7Securities and Exchange Commission. Insider Trading Arrangements and Related Disclosures
Tax Consequences for the Seller
A secondary sale triggers a capital gain or loss equal to the difference between the sale price and the seller’s adjusted basis in the shares. Basis is generally what the seller originally paid, including any exercise price for stock options, adjusted for events during the holding period.8Internal Revenue Service. Topic No. 409 Capital Gains and Losses If the seller held the shares more than a year, the gain qualifies for long-term capital gains rates, which are significantly lower than ordinary income rates for most taxpayers.
Sellers who originally acquired shares from the issuing corporation may qualify for a powerful exclusion under Section 1202 of the Internal Revenue Code, which covers Qualified Small Business Stock (QSBS).9Office of the Law Revision Counsel. 26 USC 1202 – Partial Exclusion for Gain from Certain Small Business Stock For QSBS acquired after July 4, 2025, the exclusion works on a graduated scale: 50% of the gain is excluded after a three-year hold, 75% after four years, and 100% after five. The maximum excludable gain per issuer is the greater of $15 million or ten times the seller’s adjusted basis. The issuing company must be a domestic C corporation with aggregate gross assets not exceeding $75 million, operating in a qualifying industry; professional services firms, financial services companies, and businesses built around the reputation of specific individuals are excluded.
The catch for secondary participants is important. QSBS benefits are almost always restricted to shareholders who acquired their stock directly from the issuing corporation. If you bought shares on the secondary market from another shareholder rather than from the company, those shares generally do not qualify for the Section 1202 exclusion regardless of how long you hold them. Buyers pricing a secondary purchase should not factor QSBS savings into their return math.
Sellers should also expect their tax position to shape negotiations. A seller sitting on a large unrealized gain has a higher minimum acceptable price than one whose basis is close to current value. Buyers aware of this sometimes use it as leverage.
Costs Beyond the Share Price
Both sides should budget for transaction costs that eat into the effective price. Legal counsel is the biggest line item. Attorneys specializing in private equity transfers typically charge between $300 and $550 per hour, and even a straightforward deal requires drafting or reviewing a stock purchase agreement, verifying compliance with the applicable securities exemption, and coordinating the ROFR waiver process. A simple direct sale between two institutional parties might generate $10,000 to $25,000 in combined legal fees. More complex deals cost more.
If the transaction goes through a secondary marketplace, the platform will take a commission, usually 2% to 5%. Some platforms charge the buyer, some charge the seller, some split. The company itself may also charge a transfer fee covering its administrative costs for updating the cap table and processing the board approval.