An equity table, usually called a cap table, is the master record of who owns what in a company. It lists every shareholder, every option and warrant holder, every convertible instrument, and the exact percentage of the business each person controls. For private companies, this document is the single source of truth that investors, lawyers, and tax authorities rely on when money changes hands. Getting it wrong can blow up a fundraise, trigger IRS penalties, or leave founders fighting over ownership in court.
What the Table Actually Records
At its core, the table identifies each stakeholder by legal name and tracks how many shares they hold, what type of security they received, and what they paid for it. It distinguishes authorized shares (the maximum a company’s charter allows it to issue) from issued shares (the ones actually in people’s hands). A company cannot issue beyond its authorized limit without amending its charter, and every share issued affects everyone else’s voting power and economic interest.
Beyond raw share counts, the table records the price per share at each issuance, the date of each transaction, and any restrictions attached. Vesting schedules sit alongside restricted grants, showing when shares or options become fully owned by the holder. The common arrangement is a four-year schedule with a one-year cliff: the holder earns nothing during the first year, then vests incrementally over the remaining three. Schedules like that prevent someone who leaves after two months from walking away with meaningful ownership.
Each entry should trace back to a board resolution, stock purchase agreement, or option grant notice. Auditors and acquirers will ask to see those documents during due diligence. If the paper trail has gaps, the numbers become unreliable, and unreliable numbers slow down or kill transactions.
Undiluted vs. Fully Diluted Ownership
Any equity table should present two views of ownership. The undiluted count includes only shares actually issued and currently outstanding. The fully diluted count adds in every share that could exist if all options were exercised, all warrants converted, all convertible notes and SAFEs turned into equity, and the entire unissued option pool were granted. The formula is straightforward: outstanding common shares, plus preferred shares converted to common, plus all options, warrants, convertible instruments, and the remaining option pool.
Fully diluted is the number that matters when negotiating an investment or evaluating what a stake is worth. A founder who owns 40% on an undiluted basis might own only 28% fully diluted once a large option pool and outstanding convertible notes are counted. Investors almost always price deals on fully diluted ownership, so founders who track only the undiluted number set themselves up for a rude surprise at the next round.
Securities You’ll See on an Equity Table
The instruments on the table grow more complex as a company matures.
Common and Preferred Stock
Common stock is the most basic form of ownership. Founders and employees typically hold it, and each share usually carries one vote and a claim on whatever remains after creditors and preferred holders are paid in a liquidation. Preferred stock is the standard instrument for outside investors in venture-backed companies, and it comes with protections common stock lacks.
The most important protection is the liquidation preference, which guarantees preferred holders get paid before common holders when the company is sold or wound down. A standard “1x non-participating” preference means the investor gets back the amount invested before common holders see anything; if the sale price is high enough that converting to common would yield more, the investor converts and shares proportionally. Participating preferred is more aggressive: the investor gets the preference back and then also shares in the remaining proceeds alongside common.
Anti-dilution is the other major feature embedded in preferred. If the company later raises at a lower price per share (a “down round”), anti-dilution adjusts the preferred holder’s conversion ratio so they receive additional common shares on conversion. Broad-based weighted-average anti-dilution, the common version, scales the adjustment based on how many new shares were sold and how steep the price drop was. Full ratchet is harsher: it reprices the entire preferred holding as if the investor had originally paid the lower price, no matter how small the down round.
Stock Options and Warrants
Stock options give the holder the right to buy shares at a fixed strike price in the future. They are the backbone of employee equity compensation. Warrants work similarly but are typically issued to lenders, advisors, or strategic partners rather than employees. Both represent potential dilution that existing shareholders need to track.
Convertible Notes
A convertible note is debt that converts into equity when a triggering event occurs, usually the next priced funding round. The holder typically gets a discount on the price paid by new investors (commonly 20%) and may also have a valuation cap limiting the effective price regardless of how high the new round is priced. Conversion uses whichever method produces more shares. These instruments sit in their own section of the cap table until conversion, showing principal, interest accrued, discount rate, and cap.
SAFEs
A Simple Agreement for Future Equity functions like a convertible note without the debt characteristics: no interest rate, no maturity date, no repayment obligation. Under the post-money version, founders and investors can calculate immediately and precisely how much ownership has been sold with each SAFE issued. SAFEs appear on the cap table before conversion showing the invested amount and conversion terms, but typically without a specific share count or ownership percentage, since those numbers are not fixed until the SAFE converts in a future priced round.
Transfer Restrictions
Most private companies restrict how and when shareholders can sell or transfer their shares, and the table should reflect those constraints. The most common restriction is a right of first refusal (ROFR), which requires a shareholder who wants to sell to first offer the shares to the company (or sometimes to other existing shareholders) at the same price a third-party buyer has offered. If the company declines, the sale can proceed to the outside buyer.
A ROFR has limits. It doesn’t let the company control the timing or price of a sale; it only gives the company the option to step in at whatever price the seller has already negotiated. When shares trade at high valuations, exercising the ROFR can be prohibitively expensive. Many companies also include broader transfer restrictions in their bylaws or stockholder agreements that require board approval before any transfer. Delaware law explicitly permits these restrictions as long as they’re noted on the stock certificate or in the required notices for uncertificated shares. Companies that don’t enforce them risk losing control of who appears on their cap table, which creates problems for governance, tax compliance, and future fundraising.
Events That Force an Update
An equity table is only useful if it reflects reality. A few events require immediate revisions.
Funding Rounds
Every new financing round, whether seed, Series A, or later, introduces new shareholders and dilutes everyone who came before. The table must record the new shares issued, the price per share, the class of stock, and any special rights attached to the new series. If convertible notes or SAFEs convert as part of the round, those conversions have to be recorded at the same time.
Option Pool Changes
Expanding an employee stock option pool sets aside authorized shares for future grants, diluting existing holders even before a single new option is awarded. Investors in a new round frequently require the company to expand the pool before closing, so the dilution falls on the pre-money valuation rather than being shared with the new investors. Tracking the pool’s total size, granted options, exercised options, and remaining available shares is one of the most maintenance-intensive parts of cap table management.
Stock Splits and Reverse Splits
A stock split increases the share count while proportionally decreasing the price per share; a reverse split does the opposite. Neither changes anyone’s economic ownership, but every line on the table has to be recalculated. Failing to update each holder’s share count after a split creates mismatches that can trigger disputes over voting rights or dividend distributions later on.
Secondary Transactions
When existing shareholders sell their shares to third parties on the secondary market, the table must record the transfer. These transactions are where transfer restrictions and ROFR provisions get exercised, and where sloppy record-keeping creates the most confusion about who actually owns what.
409A Valuations and Option Strike Prices
Any private company issuing stock options needs to get the strike price right, and that requires a formal valuation under Section 409A of the Internal Revenue Code. The IRS treats options priced below fair market value as deferred compensation, and the penalties for getting this wrong land on the employee, not the company.
If options are granted with an exercise price below fair market value and the plan fails to comply with Section 409A, the affected employee owes income tax on the deferred compensation, a 20% additional tax on top of that, and interest calculated at the federal underpayment rate plus one percentage point running back to the year the compensation was first deferred. Those penalties apply even if the employee has not exercised the options or received any cash.
The IRS offers a safe harbor to establish a defensible strike price: if an independent appraiser determines the company’s fair market value, and the valuation was performed no more than 12 months before the option grant date with no material change in value between the valuation and the grant, the IRS presumes the valuation is reasonable. The presumption can be rebutted only by showing the valuation was grossly unreasonable, which shifts the practical burden to the IRS.
Material events like closing a new funding round, a significant change in revenue, or a secondary sale at a notably different price all invalidate a prior valuation and require a fresh one before any new options can be granted. The cap table and the 409A valuation are tied together: the valuation sets the strike price, and the strike price determines the economic terms recorded on the table for every option grant.
83(b) Elections for Restricted Stock
When a founder or employee receives restricted stock that vests over time, Section 83 of the Internal Revenue Code creates a tax event at each vesting milestone. Without an election, the recipient owes ordinary income tax on the difference between the stock’s fair market value at vesting and what they paid for it. If the company’s value has climbed in the meantime, the tax bill can be enormous.
An 83(b) election lets the recipient be taxed at the time of the grant instead of at vesting. If the stock is worth very little at grant, as it usually is for early-stage founders paying fractions of a penny per share, the immediate tax bill is negligible, and all future appreciation is taxed at capital gains rates when the stock is eventually sold rather than at ordinary income rates as it vests.
The catch is an absolute 30-day deadline. The election must be filed with the IRS no later than 30 days after the stock is transferred, and it cannot be revoked once filed. Missing the window means losing the opportunity permanently for that grant, with no extensions and no exceptions. There is also forfeiture risk: if the recipient leaves and unvested shares are forfeited, they have already paid tax on stock they no longer own, and no deduction is allowed for the loss. Despite that risk, filing an 83(b) is nearly universal among startup founders receiving restricted stock at low valuations. The table should flag whether each restricted stock grant has a corresponding 83(b) on file.
When the Cap Table Triggers SEC Registration
The equity table has regulatory implications beyond internal governance. Under Section 12(g) of the Securities Exchange Act, as amended by the JOBS Act, a company with more than $10 million in total assets must register its equity securities with the SEC if those securities are held of record by 2,000 or more persons, or by 500 or more persons who are not accredited investors. “Held of record” generally means shareholders listed on the company’s own books, not beneficial owners holding through brokers.
Registration triggers ongoing public reporting obligations, including annual and quarterly financial statements, proxy disclosures, and insider trading restrictions. Most private companies work hard to stay below these thresholds, which makes cap table accuracy a regulatory matter, not just a bookkeeping one. If sloppy record-keeping causes a company to lose track of its actual holder count, it can stumble into mandatory registration without realizing it.
Managing the Table
In the earliest days, a spreadsheet works fine. Two founders and an advisor don’t need enterprise software. But spreadsheets rot quickly once a company takes on convertible instruments, starts granting options, or closes its first priced round. Version control is the first casualty: when three people have three copies with three different last-saved dates, nobody knows which one is the real cap table. Human error is the second. A mistyped share count or a forgotten option exercise can cascade into incorrect ownership percentages that go unnoticed until a lawyer starts pulling documents for a deal.
Dedicated cap table platforms solve most of these problems by maintaining a single authoritative record that updates when new transactions are entered. They produce fully diluted ownership calculations, model future dilution scenarios, track vesting schedules, store the underlying legal documents for each issuance, and generate the reports investors and auditors expect. The transition from spreadsheet to software usually happens around a first institutional funding round, when the investor’s lawyers will scrutinize the table as part of due diligence. Errors found at that stage delay closings, inflate legal costs, and damage founder credibility. The best time to clean up a messy cap table is before anyone else needs to look at it.