The rule, the boundary, and the records—up front
This is the shortest source-mapped path to the SpaceX answer. Use the public rule first, then match it to the employee’s actual plan, award, dates, and records.
| Answer layer | What the current record says | Where to verify it |
|---|---|---|
| Public rule | What current sources establish The 2024 plan contains a fair-market-value floor and authorizes the Board to determine fair market value. Individual option agreements establish the actual strike price and term. | |
| Where it changes | Exceptions and population boundaries Stock splits, recapitalizations, substituted awards, repricing, ISO modifications, and nonstatutory options can affect the record. |
|
| Decision sequence | What to confirm before acting Separate grant-date value, strike price, current market price, taxable spread, cash exercise cost, withholding, basis, and eventual sale proceeds. | Reviewed July 13, 2026Source register and review dates ↓ |
Public sources establish the baseline. The governing plan, award, account, and employment records establish the employee-specific result.
The quote is not your gain
The strike price is a grant fact, not today’s stock value
After an IPO, the arithmetic feels obvious: take an old option’s strike price, subtract it from the public stock quote, and call the difference your gain. That quick calculation skips over a lot—split adjustments, how the grant is classified, the fair-market-value rules that apply, the taxes, and the sale restrictions that may still bind the shares. The number on the screen and the number in your pocket are rarely the same.
SpaceX’s amended 2024 plan generally requires an option exercise price of at least 100% of fair market value on the grant date, subject to stated plan exceptions, and it authorizes the Board to determine that fair market value. What the plan does not do is publish your grant’s historic valuation or establish the strike price for any particular award. Those come from the grant agreement, the split-adjusted administrator record, and the exercise confirmation.
Two numbers that answer different questions
The strike sets your cash; the valuation sets the tax
It helps to keep two numbers apart. The exercise price determines the cash you must put up and helps measure the spread, while the fair market value used for tax reporting—the figure a 409A valuation is meant to establish—may come from a different date under a different rule. Confuse the two and the exercise budget distorts—you can misjudge both the cash required and the value that will be reported on your behalf.
So reconstruct the grant before you model anything. Start with the original grant notice, then trace the amendments, the May 2026 stock split, any substitutions, the vesting, and the administrator’s current share and strike figures. Separate the grant-date value, the strike price, the current market price, the taxable spread, the cash exercise cost, the withholding, the basis, and the eventual sale proceeds. Keep these pieces together:
- Original option grant
- Split-adjusted share and strike record
- Grant-date 409A valuation evidence
- Exercise confirmation
- Post-exercise cost basis
Adjustments and special cases
Keep both dates’ evidence in one place
A few events can quietly reshape the record. The 2024 plan generally requires that fair-market-value floor at grant, with stated exceptions for substituted awards, but it will not publish your historic 409A valuation or prove the tax treatment of a specific exercise. Stock splits, recapitalizations, substituted awards, repricing, ISO modifications, and the difference between incentive and nonstatutory options can each affect the numbers you carry forward.
The durable habit is to preserve the grant-date evidence and the exercise-date evidence side by side. Together they explain the cash you paid, the value used for payroll or tax purposes, the shares you received, and the basis you will carry into a later sale—one continuous record instead of a guess reconstructed years afterward.
This guide provides general education for SpaceX employees. It is not individualized financial, investment, tax, legal, benefits, or securities-law advice and is not a recommendation to buy, hold, sell, exercise, transfer, roll over, or donate an asset.
Frequently asked questions
Questions to take back to the documents
Is my SpaceX option strike price the same as a 409A valuation?
No. The strike price is fixed by the grant terms, while a valuation may be used to establish fair market value for grant or tax purposes. Keep the exact grant-date evidence.
Did the May 2026 SpaceX stock split change option economics?
The amended plan references the 1-to-5 split. Confirm the administrator's adjusted share count and strike price for each individual grant.
Why can the public stock price differ from the value used at exercise?
Timing, plan definitions, market hours, payroll conventions, restrictions, and the specific tax event can affect the value used. Reconcile the official exercise confirmation.
Primary sources
What this guide is based on
Sources were reviewed on the dates shown. Later plan amendments, filings, agreements, or employee communications may change the answer.
Apply the education carefully
Connect with an advisor experienced with SpaceX employees.
Share the SpaceX planning topic and timing in general terms so Aerospace Wealth can consider an appropriate employer-specialist introduction. Do not include exact balances or sensitive documents.