Sell Repligen (RGEN) stock to fund a goal
Calculator · free · no signup · RGENNeed cash for a goal? Plan the minimum-tax schedule to sell your vested Repligen (RGEN) 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 Repligen
Repligen (RGEN) is a public Other company, incorporated in Delaware and headquartered in Waltham, MA.
Equity grants at Repligen typically include restricted stock units (RSUs).
Repligen Corporation is an American life sciences company that develops and manufactures products used in biological drug manufacturing. The company is headquartered in Waltham, Massachusetts, and is listed on the Nasdaq under the symbol RGEN.
Source: Wikipedia (CC BY-SA 4.0)
The company sells the consumable hardware inside biologic drug manufacturing: filtration devices, chromatography resins, and single-use flow path components that let manufacturers avoid cleaning validation between batches. Growth followed the industry shift from stainless steel to disposable bioprocessing, and a long acquisition program assembled the product line. Revenue is exposed to customer inventory cycles, which produced a sharp correction after pandemic-era overbuying. Headquarters are in Waltham, Massachusetts, and most sales flow through large biopharmaceutical manufacturers and their contract partners.
Sources: repligen.com · en.wikipedia.org
Equity comp at Repligen
- 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 Repligen.
If you hold vested Repligen (RGEN) 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 Repligen tools → · Use the generic Stock Sale Funding Calculator for any company.
Repligen equity questions
- How much RGEN 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 RGEN 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 Repligen grant ISOs, NSOs, or RSUs?
- Equity compensation at Repligen typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do Repligen RSUs use double-trigger vesting?
- No. Repligen 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 Repligen equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.