Amphenol (APH) RSU sell-vs-hold
Calculator · free · no signup · APHSell at vest or hold? Compare after-tax payout from selling Amphenol RSUs at vest vs. holding through the LTCG cliff at 12 months.
Beta · invite-only · AlphaLatitude Inc. · Free Tools
Your vest
Tax inputs
Hold strategy
Best after-tax payout — at year 1 yr
$47,709
Sell + invest wins by $4,981 over Hold 1 yr.
Estimates only. Not financial advice.
Heads-up: under-withholding. Your employer withholds federal tax at the IRS supplemental rate (22.0% on this vest, ≈ $17,600). Your marginal federal rate on this vest is 32.7%, owing $26,171. Expect to settle the $8,571 gap at tax time.
The hidden purchase
Tax was paid at vest either way. Holding is mathematically equivalent to taking $44,509 in after-tax cash and buying $44,509 of APH today.
Most diversification frameworks would advise against a purchase that size in a single name; the right answer depends on your conviction in APH. Holding past one year converts the gain to LTCG.
Sell + invest
Best payout| Vest value (shares × price) | $80,000 |
| Federal | |
| State | |
| Medicare | −$1,160 |
| Additional Medicare | −$720 |
| Market gain over 1 yr at 10.0% | $4,451 |
| Cap-gain tax on diversified gain — LTCG (federal + state + NIIT) | −$1,251 |
| Net at year 1 yr | $47,709 |
Sell every share at vest; invest the after-tax cash at the market return for 1 yr, then liquidate. Diversified — no single-stock concentration risk.
Hold 1 yr
| Vest value (shares × price) | $80,000 |
| Vest tax (federal + state + FICA) | |
| Net at year 1 yr | $42,728 |
Sold 444 shares to cover vest tax (net-settled); kept 556 shares 1 yr to qualify for long-term capital gains.
Social Security + Medicare are payroll taxes (collectively called FICA) — they apply because you're still employed at vest.
Both columns are stated in year-1 yr dollars. The sell side compounds at the market return; the hold side compounds at your single-stock expected return after a 20% volatility drag.
Estimates only. Assumes net-settled (sell-to-cover) vesting; double-trigger and pre-IPO RSUs are out of scope. Excludes multi-state moves, AMT interactions on other equity, and 83(b) elections. Not financial advice.
You evaluated one RSU vest. The beta plans every vest of every grant across years, with concentration and AMT in the loop.
Request beta access →Related calculators: RSU Lot Order Calculator · Stock Concentration Calculator
About Amphenol
Amphenol (APH) is a public Hardware company, incorporated in Delaware and headquartered in Wallingford, CT.
Equity grants at Amphenol typically include restricted stock units (RSUs).
Amphenol Corporation is an American producer of electronic and fiber optic connectors, cable and interconnect systems such as coaxial cables. Amphenol is a portmanteau from the corporation's original name, American Phenolic Corp.
Source: Wikipedia (CC BY-SA 4.0)
Founded in Chicago in 1932 to make radio tube sockets, the company now sells connectors, cable, and sensors into essentially every electronics end market: datacenter, automotive, defense, industrial, and mobile. Growth has come from a deliberate acquisition cadence, dozens of small deals absorbed into a decentralized structure where operating units keep their own management. That model produces unusual consistency in margins across cycles. Headquarters are in Wallingford, Connecticut, and datacenter interconnect has become a prominent growth line.
Sources: amphenol.com · en.wikipedia.org
Equity comp at Amphenol
- 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 Amphenol.
Amphenol (APH) RSUs vest as ordinary income at the price on vest day. The decision is whether to sell at vest and reinvest, or hold the shares through the 12-month LTCG cliff. This calculator runs both paths through the same after-tax math so you can compare like-for-like.
All Amphenol tools → · Use the generic RSU Sell-vs-Hold Calculator for any company. Diversifying multiple RSU lots? See the lot-by-lot sell order →
Amphenol equity questions
- Should I sell or hold my Amphenol RSUs at vest?
- Amphenol restricted stock units (RSUs) are taxed as ordinary income on their value at vest whether or not you sell. The only open decision is what to do with the shares afterward: sell at vest and reinvest, or hold past twelve months for long-term capital-gains treatment on any further gain. The calculator above runs both paths through the same after-tax math so you can compare them directly.
- Does Amphenol grant ISOs, NSOs, or RSUs?
- Equity compensation at Amphenol typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Amphenol RSUs use double-trigger vesting?
- No. Amphenol 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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