What Is a Cap Table? How to Create and Maintain a Capitalization Table

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A cap table (short for capitalization table) is a record of who owns a company and how much. It lists every holder of equity or rights to equity, such as founders, employees, angel investors and venture capital firms, with the type and number of securities each holds and the resulting ownership percentage. Cap tables are most associated with startups, but any company with more than one owner can keep one. Most start as a spreadsheet and move to dedicated cap table management software as holders and instruments multiply.

How a Cap Table Works

A basic cap table is a grid. Security holders run down the left side, one row per holder. Security types run across the top: common stock, each series of preferred stock (Series Seed, Series A and so on), options, warrants and convertibles. Each row totals what that holder controls.

Two calculations drive the table:

• Ownership percentage = holder’s shares ÷ total shares
• Value of a stake = holder’s shares × price per share

The denominator matters. Issued and outstanding ownership counts only shares that exist today. Fully diluted ownership adds every share that could exist if all options, warrants and convertible securities were exercised or converted, including the unallocated portion of the employee option pool. A founder’s stake on a fully diluted basis is always equal to or smaller than the outstanding figure.

Holders are often ordered with founders first, then executives and key employees with equity, then outside investors such as angels and venture funds. Another layout sorts everyone from largest to smallest holding.

Creating and Maintaining a Cap Table

1. List every security type authorized and issued, including each preferred series.
2. Add each holder and their shares or rights in each column, sourced from the stock ledger, signed agreements and board approvals.
3. Include the option pool, split into granted options (with vesting details) and options still available to grant.
4. Record convertible instruments such as convertible notes and SAFEs with their key terms (valuation cap, discount, interest), since their eventual share count depends on a future priced round.
5. Calculate totals and percentages on both an outstanding and a fully diluted basis.
6. Update after every equity event: funding rounds, option grants and exercises, options terminated or expired when employees leave, and shares redeemed, transferred or sold.

Companies often also build a pro forma cap table showing projected ownership after a proposed financing, merger, acquisition or public offering, so the effects can be reviewed before anyone signs.

For a limited liability company, the equivalent record tracks membership units and capital contributions rather than shares. The LLC structure explains how that ownership differs from a corporation’s.

Example of a Cap Table

Hypothetical example, for illustration only. Two founders start a company. Founder A holds 4,000,000 common shares, Founder B holds 3,000,000, and the board sets aside a 1,000,000-share option pool.

A seed investor then buys 2,000,000 new preferred shares at an assumed $1.00 per share. That implies an $8 million pre-money valuation (8,000,000 existing shares × $1.00) and a $10 million post-money valuation. Nobody sold shares, yet each existing holder’s percentage fell by one-fifth because the total grew. That is dilution. At the round price, Founder A’s smaller stake is now valued at $4 million (4,000,000 × $1.00).

Why a Cap Table Matters

As a company moves from founders, friends, family and angels to venture capitalists and possibly an IPO, the list of holders and instruments multiplies. In practice the cap table is used to:

• Model how a new round will dilute existing owners and size the option pool.
• Decide how many options to grant new hires and what percentage those grants represent.
• Answer investor and lender due diligence before they commit.
• Work out who receives what in an acquisition or liquidation, alongside the preferred stock terms.
• Cross-check the shareholders’ equity section of the balance sheet, which reports the same capital structure in accounting terms.

Are Cap Tables Public?

No U.S. regulation requires a private company to disclose its cap table. Many startups share it only with existing investors and serious prospective ones. Once a company goes public, insiders and institutional shareholders become visible through public filings, though the detailed private-era table is not published as such.

Limitations of a Cap Table

• Percentage is not payout. Preferred shares often carry liquidation preferences, so in a sale a 20% preferred holder may receive more or less than 20% of the proceeds, depending on the price and terms. A full exit analysis needs a waterfall model on top of the cap table.
• Price per share is not market value. The value column usually reflects the last round’s preferred price. Private common stock has no traded price and may be valued lower for tax and option-pricing purposes.
• Convertibles are estimates. Until a priced round happens, the share count of a SAFE or note is a projection.
• Errors compound. A missed grant or unrecorded transfer carries into every later round and can surface during due diligence.

Cap Table vs. Related Terms

• Market capitalization is the total value of a public company’s shares. A cap table is the ownership breakdown behind it, and it exists for private companies that have no market price.
• Capital structure describes the mix of debt and equity that funds a business. A cap table focuses on the equity side, though some versions note convertible debt.
• Stock ledger is the legal record of each issuance and transfer. The cap table summarizes the ledger into current holdings and percentages.

FAQs

The Bottom Line

Founders, employees with equity and investors in private companies rely on the cap table to see how new rounds, option grants and exits change their stakes. Keeping it updated after every equity event avoids errors that carry into later rounds and surface in due diligence. For payouts in a sale, the cap table needs a waterfall model that applies preferred stock terms.