HawkEye 360, Inc. (HAWK) Post-Termination ISO Calculator
Calculator · free · no signup · HAWKLeft HawkEye 360, Inc. with vested ISOs? Most plans give you 90 days to exercise or forfeit. See your deadline, the AMT cost of exercising, and the share count that maximizes after-tax value.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your grant
Tax inputs
Grant timeline
Recommended exercise quantity
Exercise all 10,000
With 10%/yr expected growth over the 3-yr hold, every share's expected after-tax gain exceeds its marginal AMT cost. Net value: $171,946 at horizon.
Net after-tax value vs. shares exercised
Each point is the expected after-tax NPV at your hold horizon if you exercise that many shares now and let the rest expire.
Year-by-year tax breakdown
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 | 10,000 | |||
| 2 | 0 | |||
| 3 | 0 |
Federal AMT credit
Earned
$134,654
Recovered
$29,764
Remaining
$104,890
The AMT credit only recovers in years where regular tax exceeds AMT — typically a year with no ISO exercise. It carries forward indefinitely (Form 8801) and applies in any future tax year where regular tax exceeds AMT.
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 solved the exercise window. The beta plans what comes after it: the new shares, your remaining equity, hedges, and taxes in one multi-year plan.
Request beta access →About HawkEye 360, Inc.
HawkEye 360, Inc. (HAWK) is a public Aerospace/Defense company, incorporated in Delaware and headquartered in Herndon, VA. IPO'd May 7, 2026.
Last close: $25.64 per share (as of 2026-06-11).
Equity grants at HawkEye 360, Inc. typically include incentive stock options (ISOs), non-qualified stock options (NSOs), and restricted stock units (RSUs).
HawkEye 360 is an American geospatial analytics company headquartered in Herndon, Virginia. The company specializes in the collection and analysis of radio frequency (RF) signal location data using a constellation of satellites.
Source: Wikipedia (CC BY-SA 4.0)
In May 2026, HawkEye 360 listed on the NYSE under the ticker HAWK, raising $416 million at a $3.1 billion market cap. The company, founded in 2015 in Herndon, Virginia by Chris DeMay (a former NRO program manager) and Virginia Tech researchers Charles Clancy and Bob McGwier, operates a constellation of more than 30 satellites that collect and geolocate radio frequency signals from orbit. It sells RF intelligence to government customers including the NGA, NRO, and Space Force and reported $117.7 million in revenue for fiscal 2025.
Sources: sec.gov · prnewswire.com
Equity comp at HawkEye 360, Inc.
- HawkEye 360 (NYSE: HAWK) completed a traditional IPO on May 7, 2026 (priced at $26.00, raised $416M). As a defense contractor in Herndon VA serving U.S. and allied government customers, certain roles require security clearances; ITAR and export-control practices apply to personnel handling controlled technical data, though no public S-1 disclosure indicates clearance-conditional equity grants.
- 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.
Sources: prnewswire.com · satellitetoday.com
Researched 2026-05-11.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by HawkEye 360, Inc..
If you have left HawkEye 360, Inc. (HAWK) with vested incentive stock options (ISOs), most stock plans give you 90 days from your departure date to exercise or forfeit them. Exercising everything at once concentrates the AMT bargain element into a single tax year. This calculator computes your window deadline from your departure date, the alternative minimum tax (AMT) cost of a full exercise at the current trading price, and the partial-exercise share count that maximizes expected after-tax value.
Example: leaving HawkEye 360, Inc. (HAWK) with 5,000 vested ISOs at a $7.69 strike, with the last close at $25.64, exercising all of them inside the 90-day window puts a $89,750 bargain element into one tax year. Above the 2026 federal AMT exemption ($88,100 single, $137,000 married joint), the 28% AMT rate adds roughly $25,130 on top of regular tax before any state AMT (CA, CO, CT, MN). Exercising fewer shares lowers that bill at the cost of forfeiting the rest; the calculator above finds the count that maximizes expected after-tax value for your exact figures.
All HawkEye 360, Inc. tools → · Use the generic Post-Termination ISO Exercise Calculator for any company.
HawkEye 360, Inc. equity questions
- I left HawkEye 360, Inc.. How long do I have to exercise my ISOs?
- Most stock plans give you 90 days from your departure date to exercise vested incentive stock options (ISOs); unexercised options are forfeited when the window closes. Tax law is slightly wider: ISO treatment requires you to have been an employee within 3 months of exercise (Internal Revenue Code Section 422(a)(2)), so options exercised under an employer-extended window are taxed as non-qualified stock options (NSOs). Check your grant agreement for HawkEye 360, Inc.'s exact terms. The calculator above computes your deadline from your departure date, the alternative minimum tax (AMT) cost of exercising, and the share count that maximizes after-tax value.
- Does HawkEye 360, Inc. grant ISOs, NSOs, or RSUs?
- Equity compensation at HawkEye 360, Inc. 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.
- When did the HawkEye 360, Inc. IPO lockup expire?
- HawkEye 360, Inc. (HAWK) went public on May 7, 2026. The standard post-IPO lockup runs 180 days, so employee and insider shares generally became sellable around November 3, 2026. Confirm against your own grant paperwork, since some lockups release early or in stages.
- Do HawkEye 360, Inc. RSUs use double-trigger vesting?
- No. HawkEye 360, Inc. 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.
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