Base — 2× last post-money
Today
Founders
80.00%
Seed
post $12,000,000
Founders
58.67%
Series A
post $38,000,000
Founders
43.38%
Series B
post $120,000,000
Founders
34.85%
Exit value
$240,000,000
Base — 2× last post-money
Founder $ payout
$83,641,375
at 34.85% ownership
AI explainer
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The math above is deterministic. AI explains what it means — it never recalculates the numbers.
About
Project how founder ownership shrinks across multiple priced rounds. Add seed, A, B, C with their raise size, pre-money, and option-pool top-ups to see your real ownership at exit.
How it works
- 01Set founders' starting ownership %.
- 02For each round: enter raise, pre-money, and any pool top-up %.
- 03Investor % = raise / post-money. Founders are diluted by (1 − investor% − pool%) per round.
- 04We multiply dilution factors across rounds for a final ownership number.
Examples
Healthy path
Founders start at 80%. Seed: $2M at $10M pre (17% investor + 10% pool). A: $8M at $30M pre (~21% + 5%). B: $20M at $100M pre (~17% + 3%). Founders end around 36%.
Heavy dilution
Bigger pool top-ups, lower pre-moneys, or down rounds can cut founder ownership in half over three rounds. Model each scenario before signing.
FAQ
What's a typical pool top-up?+
5–15% pre-money at Seed; 3–10% at A; 2–5% at B. Most pool comes out of founders, not investors.
What if I raise via SAFE first?+
Add the SAFE conversion as a 'round' or convert it inside the Seed row. Easiest is to model SAFEs separately in the SAFE converter, then add the diluted starting % here.
Does this account for refresh grants?+
No — those affect employees, not founders. Add them to your cap table directly for total picture.