How much dilution happens at Series A?
Expect 15–20% from the investment itself, plus 5–10% if the option pool is refreshed. Founders and employees should model both effects before accepting new grants.
Series A Dilution Calculator
Series A typically dilutes existing shareholders 15–20%. If you're an employee with 0.5% pre-A, expect ~0.4% post-A before further pool expansion.
Dilution inputs
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Series A
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