A capitalization table, universally abbreviated as a cap table, is the definitive record of who owns what in a company. It is a spreadsheet or database that lists every security the company has issued — common stock, preferred stock, stock options, warrants, convertible notes, and SAFEs (Simple Agreements for Future Equity) — along with the holders, quantities, prices, and key terms associated with each security. For startup founders and investors, the cap table is one of the most important documents in the company's existence because it determines ownership percentages, economic rights, and governance authority.
What a Cap Table Tracks
At its core, a cap table answers a simple question: if the company were sold or went public today, who would receive what? But the simplicity of that question belies significant complexity in the details. A comprehensive cap table tracks:
Common stock — Shares held by founders, employees who have exercised their options, and sometimes early advisors. Common stock is the most basic form of equity and typically carries the lowest liquidation priority.
Preferred stock — Shares issued to investors in priced equity rounds (Series Seed, A, B, C, and beyond). Preferred stock comes with special rights including liquidation preferences, anti-dilution protections, and sometimes participation rights. Each round of preferred stock is typically a separate class or series with its own terms.
Stock options — The right to purchase shares at a predetermined price (the strike price or exercise price) within a specified time period. Options are the primary equity compensation vehicle for employees and are typically granted under a formal equity incentive plan (the option pool). The cap table tracks both granted options and the unallocated option pool reserve.
Warrants — Similar to options but typically issued to investors, lenders, or strategic partners rather than employees. Warrants give the holder the right to purchase shares at a specified price and are commonly attached to venture debt facilities.
Convertible notes — Debt instruments that convert into equity at a future financing round, typically at a discount to the round price or subject to a valuation cap. Until conversion, convertible notes appear on the cap table as a contingent claim on future equity.
SAFEs — Simple Agreements for Future Equity, pioneered by Y Combinator, function similarly to convertible notes but without interest rates or maturity dates. SAFEs are extremely common in seed-stage financing and appear on the cap table as unconverted instruments until a priced round triggers conversion.
A Simple Cap Table Example
Consider a hypothetical AI startup, AlphaML, at its founding:
At incorporation: Two co-founders split 10,000,000 shares of common stock. Founder A receives 6,000,000 shares (60 percent) and Founder B receives 4,000,000 shares (40 percent). The cap table is simple — two rows, 100 percent of the company accounted for.
After creating the option pool: The company sets aside 1,500,000 shares (13 percent of the expanded share count) for future employee grants. The fully diluted share count is now 11,500,000. Founder A owns 52.2 percent, Founder B owns 34.8 percent, and the option pool represents 13 percent.
After a seed SAFE round: The company raises $2 million on a SAFE with a $10 million post-money valuation cap. The SAFE does not immediately change the share count, but it represents a claim on approximately 20 percent of the company at conversion (assuming the cap is hit). The cap table now includes this contingent ownership.
After a Series A priced round: The SAFEs convert and the Series A investors purchase new preferred shares. If the Series A is at a $30 million pre-money valuation raising $10 million, the post-money is $40 million, and Series A investors own 25 percent. The SAFE investors convert at their capped valuation, receiving their pro-rata share. After the Series A, a typical cap table might look like: Founders 45 percent, SAFE investors 8 percent, option pool 12 percent, Series A investors 25 percent, with 10 percent allocated to an expanded option pool.
How the Cap Table Changes Per Round
Each funding round triggers a recalculation of the entire cap table. The key events that cause changes include:
New share issuance — When new shares are issued to investors, all existing shareholders are diluted proportionally. If a Series B investor purchases shares representing 20 percent of the post-money company, every existing shareholder's percentage ownership decreases by approximately 20 percent of their prior stake.
Option pool expansion — Investors typically require the option pool to be refreshed before their investment (from the pre-money valuation, meaning existing shareholders bear the dilution). A common negotiation point is the size of the option pool — investors prefer larger pools (less future dilution for them), while founders prefer smaller pools (less immediate dilution).
SAFE and note conversion — When SAFEs or convertible notes convert in a priced round, new shares are issued to the holders. The conversion terms (valuation cap, discount rate) determine how many shares the holders receive. Conversion math can be complex when multiple SAFEs with different terms convert simultaneously.
Secondary sales — Existing shareholders may sell some of their shares to new investors or specialized secondary funds. These transactions change the holder but not the total share count. Secondary transactions have become increasingly common at later stages, allowing founders and early employees to achieve partial liquidity before an IPO.
Exercise and vesting — As employees vest and exercise their stock options, the cap table reflects the movement from the option pool to individually held shares. Unexercised but vested options remain as a contingent claim on the cap table.
Cap Table Management at Scale
For a two-person startup with a single SAFE investor, a cap table can be maintained in a spreadsheet. But as companies grow — adding employees with options, raising multiple rounds with different terms, and issuing warrants or convertible instruments — the cap table becomes exponentially more complex. Companies like OpenAI and Anthropic, which have raised multiple rounds from dozens of investors with varying terms, structured profit-sharing arrangements, and large employee option pools, have extraordinarily complex cap tables that require dedicated software and professional management.
Cap table management tools — Software platforms like Carta, Pulley, and AngelList have become essential infrastructure for startups. These tools automate share calculations, manage option grants and vesting schedules, generate 409A valuations (required for setting option strike prices), produce tax documents for shareholders, and model future financing scenarios. Most venture-backed startups adopt a cap table management platform by the seed or Series A stage.
409A valuations — U.S. companies must obtain independent 409A valuations to set the fair market value of common stock for option grants. This valuation, performed by accredited third-party appraisers, determines the exercise price at which employees can buy shares. 409A valuations are typically updated annually or after material events (like a new funding round). Cap table management platforms often bundle 409A valuation services.
Common Cap Table Mistakes
Founder equity not vesting — If founders hold fully vested shares from day one and one founder leaves after six months, the departing founder retains their full ownership stake. Standard practice is to subject founder shares to a four-year vesting schedule with a one-year cliff, even though the shares are technically already issued.
Option pool too small — Running out of option pool allocation before the next funding round creates a painful situation: either issue options above the approved pool (requiring board and possibly investor approval) or go through the expensive and dilutive process of expanding the pool outside a funding round.
Unclear SAFE terms — When companies issue multiple SAFEs with different terms (different caps, different discount rates, pre-money vs. post-money SAFEs), the conversion math at the next priced round can produce surprising results. Founders should model conversion scenarios carefully before issuing each SAFE.
Poor record-keeping — Failing to maintain accurate records of every issuance, transfer, exercise, and cancellation can create legal and financial complications that surface at the worst possible times — typically during due diligence for a major funding round or acquisition. Lovable and other fast-moving AI startups benefit from adopting professional cap table management early to avoid these issues.
Why Cap Tables Matter
Your cap table is the economic constitution of your company. It determines who benefits from value creation, who has decision-making authority, and how future financing events will be structured. A clean, well-managed cap table signals professionalism to investors, reduces legal risk, and ensures that the people building the company — founders and employees — are appropriately rewarded for their contributions. Every AI founder should understand their cap table in detail and review it regularly as the company grows.