Plan your Tanium ISO exercise
Calculator · free · no signup · pre-IPOTanium is pre-IPO. Plan your AMT impact at any valuation: current 409A, expected IPO price, or post-IPO scenarios.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Seeded from secondary-market data, as of Jun 16, 2026
Tax inputs
Grant timeline
Net final value at year 3 sale — optimized plan
$5,937
After-tax dollars at end of year 3, net of all federal + state taxes through the sale.
This year: exercise 10,000 shares.
= gross gain at sale − federal + state LTCG − AMT premium above baseline regular tax (time-valued)
AMT premium for exercising: $0 (on top of $228,434 regular tax across the horizon)
Lump-sum stays under your AMT crossover — no schedule optimization needed.
Federal AMT crossover this year: 143,096 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.
| 1No AMT | 10,000 | |||
| 2 | 0 | |||
| 3 | 0 |
Federal AMT credit
Earned
$0
Recovered
$0
Remaining
$0
Plan comparison
Net value at the end of your hold horizon.
Lump-sum
All in Year 1
$5,937
Even split
Equal shares each year
$5,937
Optimized
Tax-aware schedule
$5,937
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 Tanium
Tanium is a privately held Cybersecurity company, incorporated in Delaware and headquartered in Kirkland, WA.
Last reported secondary-market price: $5.4 per share (as of 2026-06-16). Your own 409A may differ.
$9B; endpoint mgmt.
Equity grants at Tanium typically include incentive stock options (ISOs) and non-qualified stock options (NSOs).
Tanium is a privately held cybersecurity and systems management company founded in 2007 with headquarters in Kirkland, Washington, and its operations center in Emeryville, California.
Source: Wikipedia (CC BY-SA 4.0)
Founded in 2007 by father-son duo David and Orion Hindawi (BigFix veterans), Tanium operates from Kirkland, Washington and sells a Converged Endpoint Management platform that delivers real-time visibility and control across millions of endpoints, unifying security and IT operations workflows. The Series F round in 2021 pushed its valuation to roughly $9B, though 2025 secondary-market marks have softened toward $4B. IPO chatter persists but no filing has surfaced. At Converge 2025, Tanium deepened its ServiceNow tie-up by piping endpoint telemetry into ServiceNow's AI Platform, and continues to integrate with Microsoft Defender and Intune.
Sources: research.contrary.com · scworld.com · forgeglobal.com
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Tanium.
The calculator works at any Tanium valuation: enter your strike, the current 409A FMV, an expected IPO price, or anywhere in between. AMT is triggered on the bargain element (FMV minus strike) when you exercise; the calculator models federal AMT, state AMT, and the multi-year credit-recovery path.
Example: at Tanium's last reported price of $5.4, exercising 5,000 ISOs with a $1.62 strike creates a $18,900 bargain element. Above the 2026 federal AMT exemption ($88,100 single, $137,000 married joint), the 28% AMT rate adds roughly $5,292 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 Tanium tools → · Use the generic AMT + ISO Exercise Calculator for any company.
Tanium equity questions
- How much alternative minimum tax (AMT) will I owe exercising Tanium 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 Tanium figures.
- Does Tanium grant ISOs, NSOs, or RSUs?
- Equity compensation at Tanium typically takes the form of incentive stock options (ISOs) and non-qualified stock options (NSOs). Incentive stock options can trigger the alternative minimum tax (AMT) when you exercise.
- Are Tanium shares eligible for QSBS?
- They might be. Qualified small business stock (QSBS) under Internal Revenue Code Section 1202 can exclude federal tax on much of the gain when shares were acquired at original issuance from a C-corporation while its gross assets were under $50 million, and held at least five years. Whether your Tanium shares qualify turns on when you acquired them and the company's asset size at that time.
One piece of the puzzle.
OptionsAhoy plans your Tanium equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.