Secondary Sale
A secondary sale is the sale of existing company shares from one owner to another — the money goes to the seller, not to the company. For non-publicly traded companies like OpenAI or Anthropic, this is often the only way to cash out shares.
Whoever owns shares in a company holds a small piece of that company. Such shares can be purchased in two ways. Either the company issues new shares and raises fresh money for itself, or someone who already owns shares sells them on to someone else. The second case is called a secondary sale, meaning a sale from second hand. The crucial difference: the money ends up with the seller, not with the company.
Why employees wait for it
Young technology companies often pay their people partly in company shares instead of salary. On paper, this can be worth a great deal. But paper is of no use to someone who wants to buy an apartment. As long as the company isn’t publicly traded, there’s no easy way to sell those shares. A secondary sale creates exactly this path.
For the company itself, this has a practical benefit. In the past, companies often went public after six or seven years. Today, the big AI companies stay private for much longer. Without an interim solution, good people would leave just to finally get access to their money. Regular sale rounds take that pressure off.
Early investors also use this route. An investor who got in back in 2019 doesn’t want to wait until 2032. They sell part of their position and keep the rest. That way they lock in a profit without giving up further upside.
How such a sale works
Shares in private companies can’t simply be passed along. Almost always, the company must approve the sale. That’s why companies usually organize the process themselves, in what are called tender offers. In these, the company sets a time window, names a price per share, and determines who may sell how much. A typical cap is around ten or twenty percent of one’s own holdings.
On the buyer side are large investors: sovereign wealth funds, pension funds, or specialized funds. The price in such a round simultaneously sets the company’s valuation. This is exactly where the numbers that show up in the news come from — for instance, when a company is valued at 300 billion dollars.
A common misconception: many people read such a valuation as proof that fresh capital has flowed into the company. In a pure secondary sale, that’s not true. The company doesn’t receive a single cent, the figure in the company’s account remains unchanged. Only the names on the ownership list change.
Secondaries in AI headlines
The best-known examples currently come from the AI industry. OpenAI, Anthropic, xAI, and SpaceX regularly carry out such sale rounds. The announcement typically reads something like: employees are allowed to sell shares worth several billion dollars to a group of investors. At some companies, such rounds happen once or twice a year.
For observers, these numbers serve as a useful thermometer. If the price per share rises significantly compared to the previous round, confidence is high. If it falls, it’s called a down round, and that’s seen as a warning sign. Since private companies otherwise rarely publish figures, secondaries are often the only available point of reference.
For clarity: the term also appears in entirely different contexts. In digital collectibles, secondary sale refers to the resale by a buyer. In private equity funds, it refers to the sale of entire fund stakes. The underlying principle always stays the same: what’s being traded is something that already belongs to someone.