Cap Table

A capitalization table (cap table) is the ledger of who owns what percentage of a company: founders, employees, and investors, across every share class and every funding round the company has raised. It's the authoritative record for ownership, and it changes every time equity is issued, exercised, or transferred.

Key components

• Share classes — common stock (typically founders and employees) versus preferred stock (typically investors), each with different rights: preferred often carries liquidation preferences, anti-dilution protection, or board seats that common stock doesn't have.
• Ownership percentages — each holder's stake, tracked both as currently outstanding shares and as fully diluted (see below) — the two numbers tell different stories and both matter.
• Option pool — shares set aside, usually before a funding round, to grant to future employees; sized as a percentage of the post-money cap table and typically created or replenished at each round.
• Funding rounds and dilution — each time new shares are issued to raise money, everyone else's percentage ownership shrinks proportionally, even though the number of shares they hold doesn't change; the cap table tracks this dilution round by round.
• Convertible instruments — SAFEs, convertible notes, and warrants that don't count as issued equity yet but will convert into shares under specific future conditions, and need to be modeled into fully diluted ownership even before they convert.

Fully diluted vs. currently outstanding

Currently outstanding ownership counts only shares that have actually been issued. Fully diluted ownership adds in everything that could become shares: the full option pool (whether or not it's been granted yet), unexercised options, warrants, and convertible notes or SAFEs at their eventual conversion terms. A founder's outstanding percentage can look comfortably high while their fully diluted percentage — the number that matters once every option and convertible actually converts — is substantially lower. Quoting the wrong one, intentionally or not, misrepresents real ownership.

Keeping it current

A cap table is only useful if it matches reality. It needs updating every time a round closes, an option is granted or exercised, a convertible note converts, or shares are transferred — not periodically or "when it comes up." Investors, auditors, and acquirers all expect the cap table to reconcile exactly with the company's actual signed agreements (stock purchase agreements, option grants, SAFE and note agreements); when it doesn't, resolving the discrepancy can require reconstructing history from old paperwork.

Common pitfalls

• Option pool sized without founders understanding the dilution it causes them — a pool is typically added to the pre-money valuation, meaning founders (not new investors) absorb the dilution from expanding it; agreeing to a pool size without doing that math means agreeing to more dilution than the headline valuation implies.
• Cap table out of date relative to signed agreements — grants, exercises, and conversions that happened but were never entered leave the table wrong, and the gap tends to surface at the worst time: due diligence for a new round or an acquisition.
• Confusing fully diluted with currently outstanding ownership — citing one when the other is what's relevant (e.g. telling an employee their current percentage while founders/investors are discussing fully diluted, or vice versa) misleads whoever hears the number.
• Ignoring liquidation preferences when reading percentages — a raw ownership percentage doesn't show who gets paid first or how much in an exit; preferred stock's liquidation terms can mean a smaller percentage stake outperforms a larger common stake in some outcomes.
• No single source of truth — spreadsheets maintained separately by founders, legal counsel, and investors drift apart; without one authoritative version, disputes over who owns what become hard to resolve.

Learn more

• Venture Capital for how funding rounds that dilute the cap table actually get negotiated and structured.
• Angel Investor for the earliest-stage investors who often appear on a cap table before institutional venture capital does.
• Business Model Canvas for describing how the business operates, a distinct concern from who owns it.
• Non-Disclosure Agreement for protecting sensitive cap table detail when sharing it outside the company during fundraising or diligence.