SentinelOne (S) NSO Exercise Calculator
Calculator · free · no signup · SPlan your SentinelOne NSO exercise (federal, state, FICA) and compare sell-vs-hold for long-term capital gains.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Tax inputs
Hold strategy
Best after-tax payout — at year 1
$199,080
Sell + invest wins by $20,783 over Hold 1 yr.
Estimates only. Not financial advice.
Sell + invest
Best payout| Bargain element (sale − strike) | $350,000 |
| Federal | |
| State | |
| Medicare | −$5,075 |
| Additional Medicare | −$3,150 |
| Market gain over 1 yr at 10.0% | $18,573 |
| LTCG on diversified gain (fed + state + NIIT) | −$5,219 |
| Net at year 1 | $199,080 |
Sell every share immediately; invest the after-tax cash at the market return for 1 yr, then liquidate. Diversified — no single-stock concentration risk.
Exercise + hold 1 yr
| Sale proceeds (year 1) | |
| LTCG tax (federal + state + NIIT) | $0 |
| Net at year 1 | $178,297 |
Sold 2,678 shares at exercise to cover strike + tax; 2,322 shares held 1 yr for LTCG.
Social Security + Medicare are payroll taxes (collectively called FICA) — they apply because you're exercising as a current employee.
Both columns are stated in year-1 dollars: sell-now proceeds compound at the market return and pay LTCG on the gain at year 1; any cash paid out of pocket on the hold side carries the same opportunity cost.
Net at year N — by hold period
Estimates only. Excludes AMT (NSOs do not trigger AMT), state-AMT, multi-state moves, and disqualifying-disposition edge cases. Not financial advice.
You calculated one NSO decision. The beta plans NSOs alongside RSUs and ISOs in a single multi-year tax 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 estimate your SentinelOne (S) NSO exercise tax (federal, state, FICA), then compare selling now versus holding through the long-term capital gains threshold. Inputs are yours: grant terms, current price, your income, your state.
Example: at SentinelOne (S)'s last close of $15.03, exercising 5,000 NSOs with a $4.51 strike creates a $52,600 bargain element, taxed as ordinary income on the day you exercise. Combined federal + state + FICA on that bargain typically lands between $14,202 and $23,670 depending on your bracket and state. The calculator above computes the exact figure for your situation and compares selling now vs. holding through the long-term capital-gains threshold.
All SentinelOne tools → · Use the generic NSO Exercise Calculator for any company.
SentinelOne equity questions
- How is a SentinelOne NSO exercise taxed?
- Exercising a non-qualified stock option (NSO) creates ordinary income on the bargain element (the price on the day you exercise minus your strike), subject to federal income tax, state income tax, and FICA. The calculator above computes that tax for your SentinelOne grant and compares selling the shares now against holding past the one-year mark for long-term capital-gains treatment.
- 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.