Sell Arm (ARM) stock to fund a goal
Calculator · free · no signup · ARMNeed cash for a goal? Plan the minimum-tax schedule to sell your vested Arm (ARM) shares and net a target amount by a target date, across tax years.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Inputs
Your equity
One stack per ticker (current-employer RSUs, prior-employer holdings, index fund, etc.). Each stack has its own current price, growth assumption, and cost-basis lots.
Drives chance-of-shortfall · default 30%
Lots
Plan
Estimates only. Not financial advice.
Lock-in-now is deterministic (0%). Plans that wait depend on future prices; risk is near-zero when inventory comfortably exceeds the goal. Volatility: each stack's option-implied vol if a ticker is set, otherwise 30%. Lognormal model; real markets have fatter tails.
| Tax | $109,597 | $111,639 | $111,883 | $118,769 |
| Wealth @ target | $719,068 | $716,894 | $714,464 | $712,031 |
| Chance of shortfall | <0.1% | 0% | 1.9% | 3.4% |
Feasible
$400,071 net by 08/01/27
Total tax: $109,597 (federal $58,819, state $36,048, NIIT $14,729)
Schedule · Recommended
| Sale date | Shares | Tax | Net | Cumulative |
|---|---|---|---|---|
| 08/17/26 | 4,085 | $351,104 | $360,043 | |
| 03/31/27 | 4 | $360 | $360,406 | |
| 04/30/27 | 32 | $2,896 | $363,321 | |
| 05/31/27 | 100 | $9,103 | $372,466 | |
| 06/30/27 | 100 | $9,157 | $381,644 | |
| 07/31/27 | 100 | $9,212 | $390,857 | |
| 08/01/27 | 100 | $9,215 | $400,071 |
Risk vs wealth
Each dot is a possible plan. Right is riskier, up is more wealth left over.
Trajectory of cash netted
Solid line = expected. Shaded band = 10th–90th percentile under price uncertainty.
After the plan
You keep 3,479 shares worth $411,873 at the projected target-date price, invested for the next decision.
You solved for a cash target. The beta optimizes your full portfolio across multiple goals and market scenarios, not just one funding need.
Request beta access →Related calculators: RSU Lot Order Calculator · Stock Concentration Calculator · RSU Sell-vs-Hold Calculator
About Arm
Arm (ARM) is a public Semiconductors company, incorporated in X0 and headquartered in Cambridge, X0.
Equity grants at Arm typically include restricted stock units (RSUs).
Arm Holdings plc is a British semiconductor and software design company headquartered in Cambridge, England, whose primary business is the design of central processing unit (CPU) cores that implement the ARM architecture family of instruction sets. It also designs other chips, provides software development tools under the DS-5, RealView and Keil brands, and provides systems and platforms, system-on-chip (SoC) infrastructure and software. As a holding company, it also holds shares of other companies. Since 2016, it has been majority owned by Japanese conglomerate SoftBank Group.
Source: Wikipedia (CC BY-SA 4.0)
Born in 1990 as a joint venture between Acorn Computers, Apple, and VLSI Technology, the Cambridge company designs processor architectures and licenses them rather than manufacturing anything. Its instruction set runs in almost every smartphone, and has pushed into datacenters through designs like Neoverse and into cars and microcontrollers. SoftBank took it private in 2016; a proposed sale to Nvidia collapsed under regulatory pressure in 2022; it listed on Nasdaq in September 2023 with SoftBank retaining majority control. Royalties per chip plus upfront licenses make the model unusually high margin.
Sources: arm.com · en.wikipedia.org
Equity comp at Arm
- 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 2026-08-17.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Arm.
If you hold vested Arm (ARM) shares and need a set amount of cash by a date (a house down payment, tuition, a sabbatical, a business buy-in), the question is which lots to sell and in which tax years to keep the most after tax. This calculator builds the minimum-tax sell schedule across your lots, accounting for federal long-term capital gains, the net investment income tax, and your state.
All Arm tools → · Use the generic Stock Sale Funding Calculator for any company.
Arm equity questions
- How much ARM stock do I sell to fund a goal without overpaying tax?
- It depends on your cost basis, your target amount and date, and how the sale spreads across tax years. Selling vested ARM shares triggers long-term capital-gains tax, plus the 3.8% net investment income tax and state tax above certain income, and bunching a large sale into one year can push the gain into a higher bracket. The calculator above builds the minimum-tax sell schedule across your lots to net your target amount by your date.
- Does Arm grant ISOs, NSOs, or RSUs?
- Equity compensation at Arm typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Arm RSUs use double-trigger vesting?
- No. Arm 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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OptionsAhoy plans your Arm equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.