When an IPO Is Mostly Existing Shareholders Selling: What It Means If You Still Hold Private Stock

An IPO is supposed to be the moment private stock turns into cash. In a growing number of listings it turns into cash for some holders on day one, and into a lock-up notice for everyone else.

Oura's IPO filing is a clean illustration. Of the 50 million shares in the offering, 36.5 million are being sold by existing stockholders and 13.5 million by the company, per Oura's Form S-1/A. The prospectus is direct about where that money goes: "We will not receive any of the proceeds from the sale of the shares being sold by the selling stockholders."

This article explains what the primary/secondary split in an offering actually is, why some holders get to sell into the listing while most employees don't, what the lock-up does to your liquidity date, and what the pattern means if you're still holding private stock in a company that hasn't filed yet.

What the Oura Filing Actually Shows

On September 21, 2026, Oura launched an IPO of 50 million shares at an indicated range of $40 to $44 per share — up to roughly $2.2 billion, valuing the company at about $14.1 billion at the top of the range, against roughly $11 billion at its October 2025 private round, per TechCrunch.

The split is what makes it worth reading. 36.5 million of the 50 million shares — about 73% — come from existing stockholders. At the $42 midpoint, that is roughly $1.53 billion flowing to selling holders and about $567 million gross to the company. One firm dominates the seller side: Forerunner Ventures, which first invested in Oura's 2020 Series B, is selling its entire 9.3% position of about 28.7 million shares for roughly $1.20 billion — close to 80% of everything existing holders are selling, per TechCrunch.

Then there is what the company does with its own share. Oura expects net proceeds of about $532.6 million and has earmarked approximately $526.4 million of it to satisfy tax withholding and remittance obligations on restricted stock units settling in connection with the offering, per the S-1/A. That leaves roughly $6.2 million for general corporate purposes.

Primary vs. Secondary Shares in an Offering

Every IPO prospectus cover splits the offering into two lines. The distinction is simple, and it determines who actually gets paid.

Primary shares. Newly created shares issued by the company. The money raised goes onto the company's balance sheet. Every existing holder's percentage ownership is diluted slightly, and in exchange the business is better capitalized.

Secondary shares. Shares that already exist, sold by the people who already own them — founders, funds, sometimes a slice of employee stock. No new shares are created, so there is no dilution, and none of the money reaches the company. It goes to the selling holder.

A listing weighted toward primary shares is a fundraising event. A listing weighted toward secondary shares is an exit for the holders named on the selling-stockholder table. Most offerings are a blend; the ratio is the tell.

Why Early Investors Can Sell at the Listing and You Usually Can't

The selling-stockholder table is not a reward for tenure or conviction. It is a contract right, negotiated into preferred stock financing documents years before anyone drafts an S-1.

Those documents typically grant preferred holders registration rights: demand rights, which let a qualifying holder compel the company to register their shares for sale, and piggyback rights, which let them add shares to a registration the company is already doing. When a fund appears on the cover of a prospectus selling its entire position, it is usually exercising a right it bargained for at the Series A or Series B.

Holders of common stock — which is what employee grants almost always become — generally have no such rights. Neither do option holders. The practical consequence is structural rather than unfair: two people can hold economic exposure to the same company, watch the same listing, and have completely different access to the offering, because one of them signed a stock purchase agreement with a registration rights section and the other signed a grant notice.

This is the same asymmetry that shows up elsewhere in the capital structure. Preferred shares carry liquidation preferences, information rights, and protective provisions that common shares don't. Registration rights belong on that list.

The Lock-Up Is Your Real Liquidity Date

If you're an employee holding shares or vested RSUs at a company that lists, the IPO date is usually not the date you can sell. A lock-up agreement — customarily around 180 days in a US IPO, though terms vary by deal — restricts insiders and employees from selling into the market for a defined period after pricing.

Three mechanics inside a lock-up are worth understanding in advance, because none of them are within your control:

1. Staged and conditional early release. Many recent lock-ups release in tranches, sometimes conditioned on the stock trading above the IPO price by some margin for a set number of days, or on the first or second earnings report. A condition that isn't met simply means you wait.

2. Underwriter discretion. Lock-ups are agreements with the underwriters, and underwriters can waive them — for some holders, for some amount, at some time. That discretion is not distributed evenly.

3. Price risk sits entirely with you. The selling stockholders in the offering transacted at a known price on pricing night. A locked-up employee holds an unhedged position through the most volatile stretch of a newly public stock's life and finds out their price roughly six months later.

That gap — a known price for holders with registration rights, an unknown one six months out for everyone else — is the concrete version of the "wait for the IPO" narrative not delivering the same thing to every holder.

Why RSU Withholding at IPO Decouples the Tax Bill From the Cash

This is not tax advice. Consult a qualified tax professional before you sell private company shares or make decisions around an equity settlement event.

Oura's $526.4 million withholding line is the clearest employee-facing number in the filing, and the mechanic behind it is common enough to be worth spelling out.

Many late-stage companies grant double-trigger RSUs: they vest on a time condition and a liquidity condition, so nothing settles until an event like an IPO. When the second trigger fires, the units settle into shares, and that settlement is a taxable compensation event — at settlement, not at sale. The company must withhold and remit. Oura's prospectus assumes a blended withholding rate of 47.7% across the RSUs settling with the offering, per the S-1/A.

Under net settlement, the company withholds shares to cover that liability and delivers the remainder. So the sequence for a locked-up employee is: your shares settle, a large tax bill is triggered and satisfied out of your own share count, and you're left holding a reduced number of shares you still cannot sell. The taxable event and the liquidity event happen months apart.

How any of this applies to a specific grant depends on the grant type, the jurisdiction, and facts a prospectus can't tell you. Our general walkthrough of the moving parts is in tax considerations in a secondary sale, and whether you can sell RSUs before an exit covers the settlement mechanics in more depth.

What This Means If You're Still Holding Private Stock

Most people reading this don't work at a company that has filed. The reason the pattern matters anyway is that it tells you what a listing is likely to deliver to a holder in your position — and what it isn't.

A listing is a liquidity event for the cap table, not automatically for you. Whether it is one for you depends on your share class, your registration rights (likely none), your lock-up, and your settlement mechanics. Those four things are knowable now, before any filing.

Headline proceeds say nothing about your per-share outcome. A $2.2 billion offering can leave $567 million in the business and a locked-up common holder waiting six months. The gap between a company-level number and a share-class-level number is the same gap we cover in the last-round valuation myth.

The pre-IPO market and the listing are separate markets with separate prices. Private shares typically clear at a discount to the last round, set by share class, company tier, and buyer demand — not by an underwriter's range. Understanding how private shares are priced is what makes the two comparable at all.

Pre-IPO liquidity channels reach common holders in a way a listing's selling-stockholder table usually doesn't. A company-run tender offer or an approved direct secondary sale is open to employees by design, because the company designed it that way. That is a meaningfully different access question from whether a fund's registration rights get exercised.

Questions Worth Asking Before Your Company Files

None of these require inside information. All of them are answerable from documents you already have or can request from your equity administrator:

1. What class of stock do you actually hold — common, a specific preferred series, or unexercised options over common?

2. Do your grant documents mention registration rights at all? For most employee grants the answer is no, and knowing that now is better than discovering it on pricing night.

3. Are your RSUs single- or double-trigger, and does the company use net settlement or require you to fund withholding in cash?

4. What lock-up have you already agreed to? Many grant agreements and stockholder agreements contain a market standoff provision that binds you to a lock-up before an offering is even contemplated.

5. What would your shares clear at in the private market today, priced to your class rather than to the company's last headline valuation?

6. What does your company's transfer policy permit? A right of first refusal and any transfer restrictions govern what is possible before a listing, regardless of what any buyer offers.

The Wider Pattern This Sits In

A selling-shareholder-heavy IPO is not new, and one filing is not a trend. What makes this one legible is that it lines up with three structural shifts we've tracked separately.

Companies now take roughly 12 years to reach a listing while employee option grants still run on a fixed ~10-year clock, which is what traps earned equity inside the private phase. The exit market has reopened, but the listing itself keeps getting narrower and reaches the top tier long before it reaches anyone else. And dedicated buy-side capital has turned venture secondaries into a standing, non-IPO exit channel rather than an opportunistic fallback.

Put together: for early institutional holders, the listing is one of several exits, and one they hold a contractual right to participate in. For a common holder, it is increasingly the slowest and least certain of the available paths, arriving years late and gated by a lock-up. The rational response is not to conclude anything about whether to sell — it is to stop treating the IPO as the default answer to the liquidity question and to price the alternatives properly.

A Final Word

Nothing in the Oura structure is unusual or improper. Registration rights are standard, lock-ups protect the aftermarket, and using IPO proceeds to fund RSU withholding rather than debt is a defensible choice. The filing is useful precisely because it is ordinary: it shows, in public numbers, how differently a single listing lands on different rows of the same cap table.

If you hold private stock, the practical takeaway is narrow. Find out what you hold, what restricts it, when it becomes taxable, and what it would be worth today. Those four answers are what let you evaluate any liquidity path on its own terms — including the one that arrives with a lock-up attached.