Educational estimates onlyNot financial or legal advice. Consult a startup attorney.
Option pool shuffle

Option pool dilution calculator

The single most misunderstood source of founder dilution. Compare pre-money pool placement vs post-money side by side with the same headline numbers. See in dollars and percentage who really bears the cost.

Form: ED-3Updated: 2026-04
Form ED-3 / Option Pool Shuffle

Pre-money pool vs post-money pool

$
$
%
Scenario A · Pool pre-money
Standard term sheet. Pool dilutes founders.
70.0%
Founder ownership
70%
20%
10%
Founders70.0%Investors20.0%Pool10.0%
Effective price / share $1.75
Scenario B · Pool post-money
Negotiated. Pool dilutes everyone proportionally.
72.0%
Founder ownership
72%
18%
10%
Founders72.0%Investors18.0%Pool10.0%
Effective price / share $2.00
Delta: Negotiating the pool to post-money returns 2.0% of ownership to founders, all else equal.
§Grant table

Typical equity grants by role and stage

RoleSeedSeries ASeries B
VP Engineering1.0 - 2.0%0.5 - 1.0%0.25 - 0.5%
VP Sales / Marketing0.8 - 1.5%0.4 - 0.8%0.2 - 0.4%
Senior engineer (IC)0.25 - 0.5%0.10 - 0.25%0.05 - 0.15%
Junior engineer0.05 - 0.15%0.02 - 0.08%0.01 - 0.04%
Director of Product0.5 - 1.0%0.25 - 0.5%0.10 - 0.25%
Advisor0.10 - 0.50%0.05 - 0.25%0.02 - 0.10%

The per-role bands above are conventional planning ranges used for sizing a pool, not figures drawn from a named published dataset, so treat them as a starting point to argue with rather than a benchmark. What is measured: Carta puts the median employee option pool at 12.1% of fully diluted equity at seed, rising to 16.8% by Series C, at which point the pool is larger than the median founding team's combined stake of 16.1% (Founder Ownership Report 2026). Actual grants vary by location, hire seniority, and company maturity within stage.

§FAQ

Option pool FAQ

When investors require an unallocated employee option pool to be in place before a round, they typically size the pool as a percentage of post-money fully diluted but place the pool in the pre-money valuation. That means founders bear the entire pool dilution while the investor's ownership is unaffected. The same 10% pool placed pre-money costs founders roughly 3 to 8 percentage points more than the same pool placed post-money.

Updated 2026-04-28