Sell Regeneron (REGN) stock to fund a goal
Calculator · free · no signup · REGNNeed cash for a goal? Plan the minimum-tax schedule to sell your vested Regeneron (REGN) 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 Regeneron
Regeneron (REGN) is a public Other company, incorporated in New York and headquartered in Tarrytown, NY.
Equity grants at Regeneron typically include restricted stock units (RSUs).
Regeneron Pharmaceuticals, Inc. is an American biotechnology company headquartered in Westchester County, New York. The company was founded in 1988. Originally focused on neurotrophic factors and their regenerative capabilities, giving rise to its present name; the company has since expanded operations into the study of both cytokine and tyrosine kinase receptors, which gave rise to their first product, which is a VEGF-trap.
Source: Wikipedia (CC BY-SA 4.0)
Leonard Schleifer founded the company in 1988 and recruited George Yancopoulos, who built the antibody discovery platforms VelociSuite and VelocImmune that produce most of its pipeline internally rather than by acquisition. Eylea for retinal disease became the commercial anchor, Dupixent with Sanofi grew into a large immunology franchise, and REGEN-COV was authorized during the pandemic. The company retains an unusual scientist-led culture and a long partnership with Sanofi. Headquarters and laboratories are in Tarrytown, New York.
Sources: regeneron.com · en.wikipedia.org
Equity comp at Regeneron
- 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 Regeneron.
If you hold vested Regeneron (REGN) 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 Regeneron tools → · Use the generic Stock Sale Funding Calculator for any company.
Regeneron equity questions
- How much REGN 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 REGN 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 Regeneron grant ISOs, NSOs, or RSUs?
- Equity compensation at Regeneron typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Regeneron RSUs use double-trigger vesting?
- No. Regeneron 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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One piece of the puzzle.
OptionsAhoy plans your Regeneron equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.