Cap Table Simulator

Model a startup cap table: founder shares, option pool, and priced rounds with a full dilution waterfall across financing events.

Inputs

Founder A shares

Founder B shares

Option pool (% of post-money)

Series A investment

Series A pre-money

10.0M shares pre-round · 13.8M post-round

Shareholder	Shares	Pre %	Post %
Founder A	5.0M	50.0%	36.4%
Founder B	5.0M	50.0%	36.4%
Option pool	1.3M	0.0%	9.1%
Series A investors	2.5M	0.0%	18.2%
Total	13.8M	100.0%	100.0%

36.4%

9.1%

18.2%

Founder AFounder BOption poolSeries A investors

Founder A dilution

50.0% → 36.4%

Founder B dilution

50.0% → 36.4%

Founders combined dilution

100.0% → 72.7%

Get our cap table model with option pool top-ups, multiple rounds, and founder dilution tracking — built for pre-seed through Series B.

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