Multi-Year ISO Exercise Schedule Calculator
Open →Plan Sierra ISO exercise around the AMT bargain element. Federal + state, AMT crossover, multi-year credit recovery.
Deep dive: How to find your ISO AMT crossover point (2026) →Sierra stock & equity tools
Pre-IPO · AISierra is pre-IPO. Plan your AMT and NSO exercise tax at any valuation: current 409A FMV, expected IPO price, or post-IPO scenarios.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Post-Termination ISO Calculator
Open →Left Sierra with vested ISOs? Model the 90-day exercise-or-forfeit window: your deadline, AMT cost of exercising at once, and the share count that maximizes after-tax value.
NSO Exercise Calculator
Open →Sierra NSO exercise tax (federal, state, FICA) plus a sell-vs-hold comparison for long-term capital gains.
Deep dive: NSO exercise: sell now or hold for long-term capital gains? →
Don't work at Sierra? Find another company.
Equity at Sierra
Sierra is a pre-IPO AI company. Your Sierra equity (incentive stock options (ISOs) and non-qualified stock options (NSOs)) is valued off the latest 409A appraisal rather than a public price, which changes the timing math on exercising and holding.
The tools below model each of these: whether exercising ISOs triggers the alternative minimum tax (AMT) this year, and the share count that keeps you under the crossover and how much Sierra concentration to carry versus diversify or hedge.
- Status
- Pre-IPO (private)
- Sector
- AI
- Headquarters
- San Francisco, CA
- Grants
- ISO and NSO
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One piece of the puzzle.
OptionsAhoy plans your Sierra equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.