Plan your Quantinuum Inc. NSO exercise
Calculator · free · no signup · pre-IPOQuantinuum Inc. is pre-IPO. Plan your NSO exercise tax (federal, state, FICA) at any expected valuation.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Seeded from secondary-market data, as of Jun 29, 2026
Tax inputs
Hold strategy
Best after-tax payout — at year 1
$178,192
Sell + invest wins by $4,706 over Hold 1 yr.
Estimates only. Not financial advice.
Sell + invest
Best payout| Bargain element (sale − strike) | $312,050 |
| Federal | |
| State | |
| Medicare | −$4,525 |
| Additional Medicare | −$2,808 |
| Market gain over 1 yr at 10.0% | $16,624 |
| LTCG on diversified gain (fed + state + NIIT) | −$4,671 |
| Net at year 1 | $178,192 |
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) | −$2,832 |
| Net at year 1 | $173,485 |
Sold 2,704 shares at exercise to cover strike + tax; 2,296 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 Quantinuum Inc.
Quantinuum Inc. is a privately held Hardware company, incorporated in Delaware and headquartered in Broomfield, CO. S-1 filed May 26, 2026.
Last reported secondary-market price: $72.41 per share (as of 2026-06-29). Your own 409A may differ.
Equity grants at Quantinuum Inc. typically include incentive stock options (ISOs) and non-qualified stock options (NSOs).
Quantinuum emerged in November 2021 from the merger of Honeywell Quantum Solutions and Cambridge Quantum, combining Honeywell's trapped-ion hardware with Cambridge Quantum's software stack. Headquartered in Broomfield, Colorado, the company builds and sells full-stack quantum computers: its H2 system runs 56 ytterbium qubits with all-to-all connectivity, and its Helios system scales to 98 barium-ion qubits with industry-leading gate fidelity. Software products include Quantum Origin (quantum-enhanced cryptography) and InQuanto (quantum chemistry simulation). Quantinuum reported $30.9 million in 2025 revenue and went public on Nasdaq (QNT) on June 4, 2026, raising $1.68 billion at $60 per share.
Sources:
Equity comp at Quantinuum Inc.
- Quantinuum is a Honeywell majority-owned spinoff (approximately 49% post-IPO voting power retained by Honeywell) with an Up-C corporate structure (a dual-entity arrangement where the public company holds membership units in an operating LLC rather than owning assets directly). The 2023 Equity Incentive Plan includes a one-time liquidity award worth $25 million in equity securities that vests 25% per year over four years from the IPO effective date, conditioned on continued employment. Standard restricted share grants vest 25% per year over four years. Change-in-control acceleration is double-trigger, meaning it requires both a qualifying corporate transaction and either a qualifying termination or a continued-service condition. Section 83(b) elections (a tax form filed within 30 days of a restricted share grant, allowing the recipient to pay income tax at grant-date value rather than waiting for shares to vest) are the sole responsibility of the participant to file.
- Recent share-sale events (industry term: tender offers):
- Jan 2024: $5B implied valuation, led by JPMorgan Chase · honeywell.com
- Sep 2025: $10B implied valuation, led by Honeywell and co-investors including NVIDIA NVentures, Quanta Computer, Mitsui, and Amgen · honeywell.com
Researched 2026-05-28.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Quantinuum Inc..
Quantinuum Inc. NSO exercise creates ordinary income on the bargain element (federal, state, and FICA) at the price on the day you exercise. The calculator works at any valuation, so you can model your exercise cost at the current 409A FMV, an expected IPO price, or post-IPO scenarios.
Example: at Quantinuum Inc.'s last reported price of $72.41, exercising 5,000 NSOs with a $21.72 strike creates a $253,450 bargain element, taxed as ordinary income on the day you exercise. Combined federal + state + FICA on that bargain typically lands between $68,432 and $114,053 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 Quantinuum Inc. tools → · Use the generic NSO Exercise Calculator for any company.
Quantinuum Inc. equity questions
- How is a Quantinuum Inc. 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 Quantinuum Inc. grant and compares selling the shares now against holding past the one-year mark for long-term capital-gains treatment.
- Does Quantinuum Inc. grant ISOs, NSOs, or RSUs?
- Equity compensation at Quantinuum Inc. 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 Quantinuum Inc. 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 Quantinuum Inc. 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 Quantinuum Inc. equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.