Sell MongoDB (MDB) stock to fund a goal
Calculator · free · no signup · MDBNeed cash for a goal? Plan the minimum-tax schedule to sell your vested MongoDB (MDB) 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 | $109,048 | $111,357 | $112,141 | $119,083 |
| Wealth @ target | $722,357 | $719,710 | $718,290 | $715,881 |
| Chance of shortfall | <0.1% | 0% | 2.4% | 4.0% |
Feasible
$400,017 net by 08/01/27
Total tax: $109,048 (federal $58,211, state $36,091, NIIT $14,747)
Schedule · Recommended
| Sale date | Shares | Tax | Net | Cumulative |
|---|---|---|---|---|
| 07/18/26 | 3,164 | $272,468 | $280,012 | |
| 07/31/26 | 20 | $1,726 | $281,785 | |
| 08/31/26 | 100 | $8,684 | $290,681 | |
| 09/30/26 | 100 | $8,735 | $299,611 | |
| 10/31/26 | 100 | $8,787 | $308,574 | |
| 11/30/26 | 100 | $8,839 | $317,569 | |
| 12/31/26 | 100 | $8,892 | $326,599 | |
| 01/31/27 | 100 | $8,946 | $335,663 | |
| 02/28/27 | 100 | $8,994 | $344,758 | |
| 03/31/27 | 100 | $9,049 | $353,888 | |
| 04/30/27 | 100 | $9,102 | $363,051 | |
| 05/31/27 | 100 | $9,157 | $372,249 | |
| 06/30/27 | 100 | $9,210 | $381,481 | |
| 07/31/27 | 100 | $9,266 | $390,748 | |
| 08/01/27 | 100 | $9,269 | $400,017 |
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 3,516 shares worth $418,901 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 →About MongoDB
MongoDB (MDB) is a public Data company, incorporated in Delaware and headquartered in New York, NY. IPO'd Oct 19, 2017.
Last close: $312.33 per share (as of 2026-07-17).
Equity grants at MongoDB typically include non-qualified stock options (NSOs) and restricted stock units (RSUs).
MongoDB, Inc. is an American software company that develops and provides commercial support for the source-available database engine MongoDB, a database for unstructured data. Over the years, the company has expanded the product from its NoSQL roots to have broader appeal to enterprise customers, such as adding ACID and transactions.
Source: Wikipedia (CC BY-SA 4.0)
Dwight Merriman, Eliot Horowitz, and Kevin Ryan founded the company as 10gen in New York in 2007, drawing on their DoubleClick roots to build a document database that ditched rigid table schemas. The flagship MongoDB engine pairs with Atlas, a managed cloud service spanning AWS, Azure, and GCP, and now ships Vector Search for retrieval-augmented generation and agentic AI workloads. Shares listed on NASDAQ as MDB in October 2017. Dev Ittycheria steered the business from 2014 through fiscal 2026, when revenue reached roughly $2.46 billion; Chirantan Desai then took the CEO seat.
Sources: investors.mongodb.com
Equity comp at MongoDB
- 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 2026-05-07.
OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by MongoDB.
If you hold vested MongoDB (MDB) 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.
Example: a 5,000-share MDB position at $312.33 is worth $1,561,650. Say you need $150,000 of it for a house down payment by next spring. Selling enough shares all in one tax year can push the gain into the higher long-term capital-gains bracket and trigger the 3.8% net investment income tax; spreading the sale across two tax years often nets more. The calculator above finds the minimum-tax sell schedule across your specific lots, basis, goal, and date.
All MongoDB tools → · Use the generic Stock Sale Funding Calculator for any company.
MongoDB equity questions
- How much MDB 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 MDB 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 MongoDB grant ISOs, NSOs, or RSUs?
- Equity compensation at MongoDB typically takes the form of non-qualified stock options (NSOs) and restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
- Do MongoDB RSUs use double-trigger vesting?
- No. MongoDB 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.
One piece of the puzzle.
OptionsAhoy plans your MongoDB equity alongside hedging, vesting, and de-concentration, across bullish, neutral, and bearish market scenarios. Free during beta.