SentinelOne (S) AMT + ISO Calculator
Calculator · free · no signup · SPlan your SentinelOne ISO exercise around the AMT bargain element from current trading price.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Tax inputs
Grant timeline
Net final value at year 3 sale — optimized plan
$242,783
After-tax dollars at end of year 3, net of all federal + state taxes through the sale.
This year: exercise 2,640 shares (of 10,000 total).
= gross gain at sale − federal + state LTCG − AMT premium above baseline regular tax (time-valued)
AMT premium for exercising: $90,254 (on top of $228,434 regular tax across the horizon)
Optimized plan keeps $57,102 more than lump-sum, $796 more than even split.
Federal AMT crossover this year: 1,271 shares ($57,238 bargain element). Above that, each additional share this year adds federal AMT.
Estimates only. Not financial advice.
Net final value by year
Running tally: NTV from shares exercised through year y, minus AMT premium paid through year y. The last year matches the plan's headline NTV. Hover a year for plan totals.
Optimized exercise schedule
You pay the higher of Regular tax and Tentative AMT per jurisdiction, then subtract Credit recovered. The result is Net tax. Hover any number for the bracket-by-bracket breakdown.
| 1 | 2,640 | |||
| 2 | 2,567 | |||
| 3 | 4,793 |
Federal AMT credit
Earned
$80,681
Recovered
$0
Remaining
$80,681
The AMT credit only recovers in years where regular tax exceeds AMT — typically a year with no ISO exercise. Every year in this schedule has bargain element, so AMT exceeds regular tax in every year and the credit carries forward untouched. Try a longer horizon or fewer total shares to introduce a recovery year.
Plan comparison
Net value at the end of your hold horizon.
Lump-sum
All in Year 1
$185,681
−$57,102
Even split
Equal shares each year
$241,987
−$796
Optimized
Tax-aware schedule
$242,783
Highest
Estimates only. Excludes disqualifying dispositions, NSOs, multi-state moves, and AMT preferences other than ISO bargain elements. Long-term capital gains tax assumes a qualifying disposition (ISO held ≥1 yr from exercise and ≥2 yr from grant); state LTCG follows ordinary brackets except where the state grants preferential treatment (HI, ND, SC, WI, AR, NM) or has a dedicated LTCG-only tax (WA). Assumes you are within the $100K ISO limit (any portion of an annual ISO grant whose FMV at grant exceeds $100K is treated as NSO from the start, §422(d)). State AMT figures are 2025 (next-year values published in late 2026). Not financial advice.
QSBS note. If your shares qualify (typically pre-IPO C-corp grants held 5+ years), a federal rule lets you exclude up to $10M of gain on a future sale from federal tax. That single rule shifts exercise-timing math more than AMT does. (This is §1202 “qualified small-business stock”.) Modeled in beta, not here.
You optimized one grant in isolation. The beta optimizes ISOs alongside your RSUs, NSOs, and stock in one plan.
Request beta access →About SentinelOne
SentinelOne (S) is a public Cybersecurity company, incorporated in Delaware and headquartered in Mountain View, CA. IPO'd Jun 30, 2021.
Last close: $15.03 per share (as of 2026-06-17).
Equity grants at SentinelOne typically include incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs).
SentinelOne, Inc. is an American cybersecurity company listed on NYSE based in Mountain View, California. The company was founded in 2013 by Tomer Weingarten, Almog Cohen and Ehud ("Udi") Shamir. Weingarten acts as the company's CEO. The company has approximately 2,800 employees and offices in Mountain View, Boston, Prague, Tokyo, and Tel Aviv. The company uses machine learning for monitoring personal computers, IoT devices, and cloud workloads. The company's platform utilizes a heuristic model, specifically its patented behavioral AI. The company is AV-TEST certified.
Source: Wikipedia (CC BY-SA 4.0)
Tomer Weingarten, Almog Cohen, and Ehud Shamir launched SentinelOne in Tel Aviv in 2013 to replace signature-based antivirus with on-device behavioral AI that prevents, detects, and rolls back attacks autonomously. The company moved its headquarters to Mountain View, California, and went public on the NYSE in June 2021 at $35 per share, then the largest cybersecurity IPO on record. Its Singularity platform now spans XDR, cloud, identity, and data, with Purple AI driving agentic threat hunting. Fiscal 2026 closed with $1.12 billion ARR, up 22 percent, and 1,667 customers paying over $100,000.
Sources: en.wikipedia.org · investors.sentinelone.com
Equity comp at SentinelOne
- RSUs use single-trigger vesting: shares become yours as each portion vests on schedule, and the value is taxed as ordinary income at that point. No IPO or acquisition is required.
Researched 2026-05-07.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by SentinelOne.
Use this calculator to plan a SentinelOne (S) ISO exercise around the AMT bargain element from the current trading price. The math accounts for federal AMT, state AMT (CA, CO, CT, MN where applicable), AMT crossover, and year-over-year credit recovery. Inputs are yours: strike price, share count, FMV at exercise, and your filing-status income.
Example: at SentinelOne (S)'s last close of $15.03, exercising 5,000 ISOs with a $4.51 strike creates a $52,600 bargain element. Above the 2026 federal AMT exemption ($88,100 single, $137,000 married joint), the 28% AMT rate adds roughly $14,728 on top of regular tax before any state AMT (CA, CO, CT, MN). The credit recovers in later years when your regular tax exceeds AMT. The calculator above runs your exact figures.
All SentinelOne tools → · Use the generic AMT + ISO Exercise Calculator for any company.
SentinelOne equity questions
- How much alternative minimum tax (AMT) will I owe exercising SentinelOne ISOs?
- Exercising incentive stock options (ISOs) does not create regular income tax, but the bargain element (the fair market value at exercise minus your strike price) counts toward the alternative minimum tax (AMT). The amount depends on the bargain element, your other income, your filing status, and your state. The calculator above models federal and state AMT, the AMT crossover point, and how the credit recovers in later years for your exact SentinelOne figures.
- Does SentinelOne grant ISOs, NSOs, or RSUs?
- Equity compensation at SentinelOne typically takes the form of incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs). Incentive stock options can trigger the alternative minimum tax (AMT) when you exercise. Restricted stock units are taxed as ordinary income when they vest.
- Do SentinelOne RSUs use double-trigger vesting?
- No. SentinelOne restricted stock units (RSUs) use single-trigger vesting: each tranche becomes yours as it vests on schedule, taxed as ordinary income at that point, with no liquidity event required.
One piece of the puzzle.
OptionsAhoy plans your SentinelOne equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.