What You're Actually Buying in a Pre-IPO Deal

In a private-market deal, "shares" is never the whole answer. What you actually acquire is a specific security: common stock, a particular series of preferred stock, or, often for individual investors, an LP interest in a special purpose vehicle (SPV) that holds the shares. The class determines your place in line if the company is one day sold or goes public, which is why two investors paying the same per share price can end up with very different outcomes.

Who this is for: investors evaluating a specific pre-IPO opportunity who want to know exactly what would land in their account. Most private-market vehicles in the U.S. are limited to accredited investors, as defined under Rule 501 of Regulation D.

Why isn't every share of a private company the same?

A share of a public company is interchangeable with every other share of its class. That interchangeability is what makes a live market price possible. A private company's capitalization table (its cap table, the ledger of who owns what) is different: it typically carries several distinct securities at once, each created at a different time on different terms. And equity isn't even the front of the line. Any debt the company owes (bank loans, venture debt) is repaid before equity of any kind sees a dollar.

• Common stock: held by founders and by employees who exercise options. It carries the residual claim: paid last, after every senior class.
• Preferred stock: what venture investors buy. Each funding round creates a new series (Series A, B, C…), each with its own negotiated rights filed in a Certificate of Designations with the state.
• RSUs (restricted stock units): a contractual promise to deliver common stock to an employee later; not shares today.
• SAFEs and convertible notes: not equity yet. A convertible note is debt: it accrues interest and has a maturity date. A SAFE is simply a contract with the company, neither debt nor equity. Both are designed to convert into preferred stock at a later priced round, but until that happens the holder owns a claim, not shares.

What's the difference between common and preferred stock?

Common is the default class and the bottom of the stack. It usually carries one vote per share and no fixed dividend. In an acquisition, common stock receives only what remains after debt and every preferred series is satisfied. A traditional IPO, in contrast, converts every preferred share into common (typically automatically, under the company's charter), extinguishing those protections at the moment of listing; what typically trades publicly is common, sometimes in dual-class form with different voting rights. The main exceptions are terms designed to apply on the way in, such as down-round anti-dilution and IPO ratchets. So the class you hold matters most in a sale priced below the preference stack. After a successful IPO, the protections are gone and the classes converge.

Preferred is what professional investors negotiate for, and the negotiated terms carry much of its value. The ones that matter most:

In practice, a liquidation preference stack sits ahead of common. If a company has raised $200 million in preferred and sells for $220 million, common holders may split only what's left, far less than the headline price suggests.

Anti-dilution terms carry real consequences as well. When Square went public in November 2015 at $9.00 per share, below the $15.46 its 2014 Series E investors had paid, a "ratchet" clause in the Series E terms guaranteed those investors a minimum return, and the company issued them roughly 10.3 million additional shares, worth about $93 million, diluting earlier investors and common holders. The case is dated, but it shows how the terms attached to a class can move real money between shareholders.

What is a liquidation waterfall?

The liquidation waterfall is the order in which exit proceeds flow: debt first, then each preferred series in seniority, then common. Where the sale price lands relative to the preference stack decides the outcome.

Consider an illustrative company with $40 million of 1x non-participating preferred outstanding and 55 million total shares, 30 million of them common:

• $40M exit: the entire price goes to preferred. Common receives $0.
• $80M exit: converting would pay preferred only about $36 million (its pro-rata share of the price), less than its $40 million preference, so it takes the preference; common splits the remaining $40 million, roughly $1.33 per share.
• $300M exit: every preferred series converts because pro-rata beats the preference; all 55 million shares split the price equally at about $5.45 each.

The company and cap table are identical in all three cases, yet common's outcome ranges from zero to full participation depending on the exit price. This is why the size of the preference stack ahead of common is a standard diligence question.

The valuation trap: same price, different security

New private-market investors often mistake a headline valuation for a market price. When a company raises at a $10 billion valuation, that number describes the most senior preferred issued in that round, with its preference, anti-dilution, and vetoes attached. The common stock that typically surfaces in secondary transactions is a junior security, even at the same nominal per-share price.

In 2021, Reddit raised a $10 billion valuation at $61.79 per share; when it went public in March 2024 at $34 per share, the IPO valued the company around $6.5 billion. The 2021 number described senior preferred with its protections attached, while what changes hands in secondary transactions is usually common. Not always, though: when the seller is a VC fund or another early investor, the shares on offer can be preferred, carrying whatever rights that series negotiated. Visibility in between was thin. One of the few public reference points came from Fidelity, a 2021 investor whose funds publicly report their portfolio marks, and which by mid-2023 had cut its per-share valuation of Reddit to $39.65. "Discount to last round" means little until you know which class each price refers to, and for most private holders there is no ticker to check in the meantime.

What do you own when you invest through an SPV?

For most individual investors, the practical route into a private company is a single-company SPV. Here the answer to "what am I buying?" changes again. You do not own the shares. You own an LP (limited partner) interest in the vehicle; the SPV holds the shares and appears on the company's cap table as a single shareholder of record.

That has three consequences:

1. The class question moves down a layer. The SPV holds a specific class, often common acquired in a secondary. Everything above about waterfalls and preferences applies to what the SPV holds, and flows through to you.
2. The operating agreement governs your economics. Every LLC has a governing contract, the operating agreement, that state law requires to exist but that isn't filed publicly or reviewed by any regulator. Fees, the form of distribution at exit (cash or in-kind shares), reporting, and transfer restrictions all live there, and where a deal page and the operating agreement differ, the agreement controls. You typically bind yourself to it through the subscription agreement you sign, so read it before signing.
3. Your interest is often less liquid than the underlying shares, and the operating agreement decides. LP interests generally can't be transferred without manager consent, and some SPVs prohibit transfer entirely. Others are built to service liquidity: the manager may facilitate transfers between eligible investors or run periodic secondary windows. How much liquidity you have depends on what the operating agreement permits and what the manager is set up to service.

Most SPVs rely on an exemption from Investment Company Act registration: Section 3(c)(1) (up to 100 beneficial owners, all accredited) or 3(c)(7) (limited to "qualified purchasers," generally individuals with $5 million or more in investments). The offering documents will identify which applies. The vehicle structures themselves are covered in a separate module in this series, How You Get Access: The Five Ways to Invest in Pre-IPO Companies; the point here is that an SPV interest is one more layer between you and the shares, and the documents define exactly what that layer does.

What can you actually know before you buy?

Private-market diligence has a structural constraint public-market investors never face: there is no required disclosure package. Under Regulation D, the specific disclosure requirements apply when an offering includes non-accredited purchasers. When it is limited to accredited investors, the issuer isn't obligated to furnish financial statements at all. Anti-fraud rules still apply, so whatever is said must be true, but nothing forces a company or a seller to say much. Accreditation legally presumes you can evaluate the deal, and demand the information, yourself.

That matters at the point of entry, because of who set the price you're referencing. The investors in the last preferred round negotiated access (financials, budgets, sometimes a board seat) before they wrote their checks. A buyer entering months later through a secondary typically sees a deal page and a headline mark made by people who knew more than you can. This asymmetry is one reason late-stage secondaries have often traded at a meaningful discount to the last round (a median of roughly 27–28% in late 2025, by one dataset), though the discount reflects several factors: the class being sold, the seller's circumstances, and what each side can know. In private markets, what you're entitled to know comes from your position and your contracts rather than from disclosure rules.

How much you can see depends on where you sit:

• A major preferred investor holds negotiated, contractual information rights.
• A direct holder is a stockholder of record, with at least the limited inspection rights Delaware law gives stockholders plus whatever the company volunteers to its cap table.
• An SPV investor sees only what the operating agreement promises, filtered through the manager's confidentiality obligations to the company.
• A layered SPV (an SPV holding an interest in another SPV) compounds the filter: the outer manager can pass along only what the inner manager provides. Every added layer makes the position more opaque.

The practical entry test is knowing which answers you're entitled to, and refusing to proceed without them. Some things are public record you can check yourself: for corporations, preferred terms (preference stack, participation, anti-dilution) live in the charter, a state filing anyone can order from Delaware, and a sponsor's registrations are often public: FINRA BrokerCheck for broker-dealers and their representatives, and the SEC's Investment Adviser Public Disclosure database for registered and exempt-reporting investment advisers. Not every sponsor is required to register, but which registrations exist, and in which capacity the sponsor is acting, is checkable before you commit. Some things the sponsor owes you: the exact class being bought, whether the structure is direct or layered, and the operating agreement's fee, distribution, and reporting terms. And some things, like current financials and interim marks, may be unknowable from where you sit; a seller claiming certainty about them is itself a signal. If even the public-record and sponsor-owed tiers can't be answered, the information problem alone is disqualifying.