Founders read cap tables as a list of percentages, which is the part that tells you least about what happens in an exit.
What is on it
Shareholders, share classes, numbers held and resulting percentages.
Which is a snapshot rather than a model.
What is not on it
Liquidation preferences, participation rights and conversion terms.
Which determine who receives what at any given exit value.
A ten percent holding behind a large preference stack can be worth nothing.
Fully diluted
Counting options, warrants and convertibles as if converted.
Which is the honest denominator and is frequently not the one quoted.
Share classes
Common shares, preferred shares and their variations by round.
Which carry different rights and are frequently shown as a single ownership figure.
Preferred holders sit ahead of common holders in any distribution.
The option pool
Shares reserved for employees, issued and unissued.
Which dilutes existing holders when created and again when expanded.
Pool top-ups at each round are standard and cumulatively substantial.
Dilution over rounds
Each financing reduces existing percentage ownership.
Which is expected and only matters relative to the increase in value.
A smaller share of a much larger company is the intended trade.
Waterfall modelling
Calculating what each holder receives at various exit values.
Which is the analysis that actually answers the ownership question.
Most founders have never seen one for their own company.
Keeping it accurate
Every grant, exercise, transfer and issuance recorded promptly.
Which sounds trivial and is where a large share of cap tables go wrong.
Errors discovered during due diligence delay transactions and cost legal fees.
Convertible instruments before conversion
Notes and simple agreements that do not yet appear as shares.
Which means the stated ownership is not the eventual ownership.
Modelling them as converted is the only honest view.
Software against spreadsheets
Dedicated cap table tools handle scenarios and reduce error.
Which becomes worthwhile once there are more than a handful of holders.
Spreadsheets remain common and remain a source of expensive mistakes.
Founder ownership over time
Typical founder ownership falls substantially across financing rounds.
Which is normal and worth modelling before the first round rather than discovering later.
What to check annually
That the record matches the legal documents, that all grants are properly approved, and that vesting is being tracked.
Why founders should model it early
Decisions made at the first round constrain everything afterwards.
Which is not obvious when the first round feels like an achievement in itself.
Spending an afternoon modelling three rounds forward changes what terms look acceptable.
Common founder errors
Giving too much away early, uneven founder splits without vesting, and untracked promises of equity.
Which are all fixable at the time and difficult later.
Verbal equity promises to early contributors cause recurring problems.
Advisors and contractors
Small grants for advice or work.
Which accumulate and should go through the same approval process as anything else.
Employee pool depletion
The pool runs down as hiring continues.
Which means planning grants against headcount plans rather than issuing ad hoc.
Due diligence
Buyers and investors examine the cap table and the documents behind it.
Which is when accumulated informality becomes expensive.
A general note
Structures and tax treatment vary by jurisdiction, and this is description rather than legal or financial advice.
Down rounds
Raising at a lower valuation than the previous round.
Which triggers anti-dilution provisions and can substantially reduce founder and employee ownership.
These became considerably more common as funding conditions tightened.
Recapitalisations
Restructuring the cap table, sometimes wiping out earlier holders.
Which occurs in rescue financings.
Understanding the possibility in advance is better than encountering it.
Secondary transactions
Existing shareholders selling to new ones.
Which changes the register without raising money for the company.
Companies usually control who may buy.
Exit modelling in practice
Run the waterfall at several exit values including disappointing ones.
Which is the only way to see what your holding is actually worth.
Where to get help
Corporate lawyers and cap table software providers both produce this analysis routinely.
Employee understanding
Staff holding equity generally do not understand the preference stack above them.
Which produces disappointment at exit that damages trust.
Companies that explain it plainly are unusual and better regarded for it.
The practical habit
Update it with every transaction, model it forward once a year, and keep the legal documents with it.
A closing caution
None of this is prescriptive. Businesses differ by sector, by scale and by stage, and practices that work well in one context fail in another for reasons that are not always visible from outside.
What is consistent is that the businesses handling these questions well tend to have written something down, measured it in a defined way, and reviewed it on a schedule rather than when a problem forces the issue.
Where a decision carries legal, tax or employment consequences, professional advice specific to your jurisdiction is worth the cost, and this article is general description rather than advice.