Guide

An initial public offering (IPO) is the traditional way a private company lists shares on a public exchange and sells new stock to public investors. Going public is a permanent shift: continuous pricing, disclosure, and liquidity for holders after lockups expire. For employees and founders it is often the first time equity can be sold in size without a special tender.

Most startups never get here. Those that do have usually spent a decade raising private capital, building a large revenue base, and using secondaries to relieve pressure along the way.

Why go public — and why it costs

Reasons to list: raise a large primary (traditional IPO); create a market where employees, founders and early investors can eventually sell; use public stock as currency for acquisitions and liquid RSUs; signal permanence to customers and talent.

Costs: quarterly and annual reports, proxies, material-event disclosures (competitors read them too — see reading company financials); independent directors, audit committees, SOX-style controls for US issuers; underwriting and professional fees in the millions; public markets that punish missed quarters.

Trade-off

Stay private when you still need secrecy, have ample private capital, and can offer employee liquidity via tenders. Go public when you want permanent liquidity currency, a large primary raise, or have outgrown what private markets price well. Staying private longer is rational for many. Staying private forever while promising IPO-like equity outcomes is a tension that secondaries only partly solve.

From the 2010s onward, large tech companies routinely stayed private past valuations that once forced a listing. Drivers: abundant late-stage private capital, secondary tenders, a wish to avoid scrutiny while scaling, and cyclical IPO windows. Consequence: employees wait longer; 409A and tenders matter more; "pre-IPO" can mean many years.

Concepts in this section

StepConceptWhat it answers
1The traditional IPOWho sets the offering price, and why is the first trade higher?
2IPO lockupsWhen can insiders actually sell?
3Preferred stock at IPODo preferences survive listing?
4Direct listings and SPACsWhat if you skip the classic book-built IPO?

Common mistakes

  • Reading the pop as employee payday. Offering price ≠ trading price ≠ what you can sell. See lockups.
  • Comparing a sale to an IPO without conversion. A qualifying IPO usually collapses preferred into common; M&A pays the waterfall first.
  • Promising IPO-like liquidity while staying private indefinitely. Tenders help; they are not a public market.

Key takeaways

  • IPOs raise primary capital, create public liquidity, and impose permanent disclosure and governance costs.
  • Employees mostly meet the stock after lockup, not on day one.
  • Preferred typically converts on a qualifying IPO — unlike preference-heavy M&A.
  • Direct listings and SPACs are other doors, with different price discovery and dilution.
  • Staying private longer shifts the liquidity burden onto secondaries.

Further learning

A clear walkthrough of underwriting, the S-1, the roadshow and the offering-price gap:

How a Private Company Becomes a Stock You Can Buy | #financialliteracyAndrew Temte

Bill Gurley on staying private, public-market structure and liquidity pressure:

The Gift and The Curse of Staying Private with Bill GurleyInvest Like The Best
SEC EDGAR full-text searchSEC.gov | EDGAR Full Text Searchsec.gov Bill Gurley: Above the CrowdBy Bill GurleyAbove the Crowd