Preferred Stock

A class of equity with special rights, issued to investors in priced funding rounds. Rights typically include liquidation preference, anti-dilution protection, and special voting provisions. Each funding round creates a new series (Series A Preferred, Series B Preferred, etc.).

Why it matters

Preferred stock is the currency of venture capital. The rights attached to preferred stock determine how exit proceeds are distributed, who has control in critical decisions, and how much protection investors have in downside scenarios. As a founder, the preferred stock terms you agree to in each round accumulate over time and directly affect what your common stock is actually worth.

A company might look like it is worth $50 million on paper, but if there are $30 million in liquidation preferences stacked up from multiple rounds of preferred stock, common stockholders only benefit from the amount above that threshold. This is why a headline acquisition price can look exciting while the founders walk away with far less than expected.

Understanding the specific terms of your preferred stock — not just the valuation — is critical when negotiating each round. The difference between participating and non-participating preferred, or between 1x and 2x liquidation preferences, can be worth millions to founders at exit. See our guide on what investors look for in cap tables for more context.

How it works

When a company raises a priced round, it creates a new class of preferred stock with specific rights outlined in the stock purchase agreement and certificate of incorporation. The most important right is the liquidation preference, which guarantees investors get their money back (typically 1x their investment) before common stockholders receive anything.

Preferred stock also includes anti-dilution protection, which adjusts the conversion price if the company later raises at a lower valuation. Most preferred stock is convertible, meaning investors can choose to convert to common stock when it benefits them, such as during a large exit where their pro-rata share of the total proceeds exceeds their liquidation preference.

Each series of preferred stock has its own set of terms. Series B Preferred might have different liquidation terms than Series A Preferred. In a waterfall analysis, later series typically get paid first (last in, first out), though this varies by agreement. Preferred stockholders also receive protective provisions that give them veto power over actions like issuing new shares, taking on debt, or selling the company.

History and origin

Preferred stock has been a feature of corporate law since the 19th century, when railroads and industrial companies used it to attract capital by offering investors priority claims on assets and dividends. In the early corporate era, preferred stock was primarily used by public companies to offer hybrid debt-equity instruments to conservative investors who wanted more protection than common stock offered.

The modern venture capital form of preferred stock — with convertibility, anti-dilution protection, and protective provisions — developed in the 1970s alongside the institutional VC industry. Arthur Rock, Tom Perkins, and the founders of early VC firms standardized term sheets that included these investor-protective provisions. The National Venture Capital Association (NVCA) model documents, first published in 2003, codified these terms and made them widely accessible.

Today, NVCA model documents are the starting point for most Series A and later preferred stock negotiations. Y Combinator, 500 Startups, and other accelerators have pushed for more founder-friendly standard terms, particularly around non-participating liquidation preferences and standard 1x liquidation multiples. The VC industry has largely moved toward cleaner, less complex preferred stock structures, though investor-friendly terms still appear in competitive deals.

Frequently asked questions

What is preferred stock?

Preferred stock is a class of shares issued to investors in priced funding rounds that carries special rights not available to common stockholders. These rights typically include a liquidation preference (first claim on exit proceeds), anti-dilution protection, and special voting provisions. Each funding round creates its own series of preferred stock.

What is a liquidation preference?

A liquidation preference gives preferred stockholders the right to receive their investment back (typically 1x) before common stockholders receive anything in a sale or liquidation. A participating liquidation preference allows investors to take their money back AND then share in the remaining proceeds alongside common stockholders — this is more favorable to investors and more dilutive for founders.

What is the difference between participating and non-participating preferred?

Non-participating preferred (standard) lets investors choose between taking their liquidation preference OR converting to common stock and participating in the proceeds. Participating preferred lets investors take their liquidation preference AND share in remaining proceeds. Participating preferred is better for investors but worse for founders and employees in most exit scenarios.

What are protective provisions in preferred stock?

Protective provisions give preferred stockholders veto power over certain company actions, typically including: issuing new shares, taking on significant debt, selling the company, changing the certificate of incorporation, and paying dividends. These provisions require approval from a majority (or sometimes a supermajority) of preferred stockholders.

Can preferred stock be converted to common stock?

Yes. Most venture preferred stock is convertible at the holder's option, typically at a 1:1 ratio. Investors convert to common stock when it benefits them — usually in a large exit where their pro-rata share of proceeds would exceed their liquidation preference. Preferred stock also automatically converts to common stock at an IPO.

How does anti-dilution protection work?

Anti-dilution protection adjusts the conversion price of preferred stock if the company later raises at a lower valuation (a down round). Broad-based weighted average anti-dilution is standard and relatively founder-friendly. Full ratchet anti-dilution is more aggressive — it resets the conversion price to the new lower price, significantly diluting founders and early employees.

Do founders receive preferred stock?

No. Founders receive common stock, not preferred stock. Preferred stock is issued exclusively to investors in priced funding rounds. This distinction matters because common stock sits below preferred stock in the liquidation waterfall, meaning founders only receive proceeds after all preferred liquidation preferences have been satisfied.

Learn more

• Types of startup equity explained
• What is a cap table?
• What investors look for in cap tables
• Should you raise VC?
• How to value a startup for equity

Related terms

• Common Stock
• Liquidation Preference
• Anti-Dilution
• Series A / B / C Funding
• Term Sheet
• Priced Round
• Pro-Rata Rights