Enter total shares offered, lockup duration in days, the founder/employee/investor cohort split, and whether an early-exit exception applies. The calculator rolls out every insider sale window over time and highlights the day-180 expiration cliff — the unlock event every pre-IPO holder and secondary buyer plans around.
The second of the IPO Simulation Agents — inside the $99/mo Intelligence Stack.
The interactive lockup-window calculator is the second IPO Simulation Agent inside the $99/mo IPO Intelligence Stack. Project insider unlock cohorts, the day-180 cliff, and early-exit exceptions — one subscription, cancel anytime.
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Example: 100M shares offered · 180-day lockup · 45% founder / 10% employee / 45% pre-IPO investor · no early-exit exception
| Cohort | Shares locked | Day-1 window | Day-90 window | Day-180 expiration |
|---|---|---|---|---|
| Founder | 45,000,000 | 0% | 0% | 45,000,000 · 100% |
| Employee pool | 10,000,000 | 0% | 0% | 10,000,000 · 100% |
| Pre-IPO investor | 45,000,000 | 0% | 0% | 45,000,000 · 100% |
| TOTAL | 100,000,000 | 0 sh · 0% | 0 sh · 0% | 100,000,000 · 100% |
Default SEC lockup term = 180 days. With no early-exit exception, every insider share stays locked from listing day and unlocks at the day-180 cliff. Toggle the early-exit exception on and set a release % to see the day-1 window open up; the day-180 row then shows the remaining share count.
Highlights — the day-180 cliff is exactly that: one supply event, 180 days post-IPO, with every pre-IPO cohort sale-eligible at once. Plan your secondary exit, your buying window, or your TAM refresh around it.
Part of the $99/mo IPO Intelligence Stack — explore the other Simulation Agents.
Model founder / employee / investor ownership retention post-money — the dilution event every pre-IPO holder needs to know before listing day.
Open →Project % retained and implied dollar stake across pre-IPO → at IPO → post-IPO +12mo at 1×, 2×, or 3× multiples.
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