Leaving DentonX Inc? Plan your 90-day ISO window

Calculator · free · no signup · pre-IPO

DentonX Inc is pre-IPO. Left with vested ISOs? Model the 90-day exercise-or-forfeit decision and its AMT cost at any valuation: current 409A or an expected exit price.

Beta · invite-only · AlphaLatitude Inc. · Free Tools

Your grant

Seeded from secondary-market data, as of Jun 6, 2026

3 yrs
10%
20%
5.0%

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: $2,834 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.

$0$709$1K$2K$3K02,5005,0007,50010,000
Recommended (10,000)Full exercise (10,000)

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.

110,000
20
30

Federal AMT credit

Earned

$0

Recovered

$0

Remaining

$0

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.

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About DentonX Inc

DentonX Inc is a privately held Cloud/SaaS company, incorporated in Wyoming and headquartered in Oakland, CA. S-1 filed May 1, 2026.

Last reported secondary-market price: $5 per share (as of 2026-06-06). Your own 409A may differ.

Equity grants at DentonX Inc typically include incentive stock options (ISOs) and non-qualified stock options (NSOs).

DentonX Inc. provides data infrastructure and workflow automation for non-bank credit markets, serving lenders, credit originators, digital finance platforms, and loan servicers. Its platform handles real-time ingestion and normalization of financial data, end-to-end workflow orchestration using AI, and API-based connectivity linking lenders, servicers, and investors. The company filed an S-1 with the SEC in May 2026 (CIK 0002093375) for a Nasdaq listing. Founders and financing details were not disclosed in publicly available sources as of the filing date.

Sources: dentonxinc.com

OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by DentonX Inc.

If you are leaving DentonX Inc with vested incentive stock options (ISOs), most stock plans give you 90 days from departure to exercise or forfeit them. The calculator works at any valuation: enter your strike and the current 409A fair market value (FMV) or an expected exit price. It computes your window deadline, the alternative minimum tax (AMT) cost of exercising in full, and the partial-exercise share count that maximizes expected after-tax value.

Example: leaving DentonX Inc with 5,000 vested ISOs at a $1.5 strike, with the last reported price at $5, exercising all of them inside the 90-day window puts a $17,500 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 $4,900 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 DentonX Inc tools → · Use the generic Post-Termination ISO Exercise Calculator for any company.

DentonX Inc equity questions

I left DentonX 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 DentonX 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 DentonX Inc grant ISOs, NSOs, or RSUs?
Equity compensation at DentonX 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 DentonX 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 DentonX Inc shares qualify turns on when you acquired them and the company's asset size at that time.
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