Guide

Venture equity is illiquid by design. You cannot open a brokerage app and sell startup shares the way you sell public stock. A secondary transaction is how someone sells existing shares to a new buyer before an IPO or acquisition — founder selling a slice in a late round, employees selling into a company-run tender, or a trade on a private marketplace.

As companies stay private longer (often a decade or more from founding to IPO), secondaries have become the main way early holders get partial cash without waiting for a full exit.

Concept

Primary capital funds the business. Secondary capital funds a shareholder's personal liquidity. Confusing the two is how people misread a "$200M raise" that was partly a founder cash-out.

PrimarySecondary
What is soldNew shares issued by the companyExisting shares held by founders, employees, or early investors
Who receives the cashThe company (balance sheet)The selling shareholder
DilutionDilutes everyoneDoes not dilute (ownership transfers)
Typical contextSeed, A, B, growth roundsLate rounds, tenders, marketplace trades

A single financing can mix both: the lead writes a large primary check and buys $5M of founder stock on the side. Headlines quote the primary valuation; the secondary price may match that preferred price, or trade at a discount.

StepConceptWhat it answers
1Founder secondariesWhen do founders sell a slice in a later round?
2Tender offersHow does a company-run employee window work?
3Transfer restrictionsWhy can't you just sell to a stranger?
4Pricing and taxHow does the price relate to preferred and 409A, and what tax hits?

For many employees at solid late-stage companies, selling some into a tender is the first time equity feels real. Treat it as risk management, not as a referendum on whether you "believe." Partial sales that reduce concentration while keeping upside are often the rational default.

When a tender or secondary appears, the questions that matter are the cap, price versus last round versus 409A, after-tax proceeds, and remaining concentration — not whether selling signals loyalty.

Common mistakes

  • Reading a headline raise as all primary. Ask how much was secondary.
  • A DIY marketplace sale that ignores ROFR. Approval is the start of paperwork, not the end.
  • Selling the week after exercise and creating a short holding period.

Key takeaways

  • Primary funding goes to the company; secondary proceeds go to the seller and do not dilute.
  • Tenders are the scalable, company-controlled path for employee liquidity — expect caps and proration.
  • ROFR, consent rights and securities rules block most casual share sales.
  • Model after-tax proceeds and remaining concentration before you click accept.

Further learning

Bill Gurley on why companies stay private longer:

The Gift and The Curse of Staying Private with Bill GurleyInvest Like The Best
A founder's guide to the tender offer (Carta)carta.com The Holloway Guide to Equity CompensationStock options, RSUs, job offers, and taxes—a detailed reference, including hundreds of resources, explained from the ground up, for both employees and managers.Holloway