You spent years accumulating SpaceX equity. RSUs vesting quarter after quarter. Maybe ISOs from way back when the strike price was a fraction of what shares are worth today. And now, on June 12, 2026, the company went public. SPCX opened at $150, closed at $161, and just like that — years of paper wealth became real.
Except you can't touch it yet.
If you're a current or former SpaceX employee holding insider shares, you're in a lockup period. And unlike most IPOs, this one doesn't have a single unlock date. SpaceX built a staggered release schedule with multiple decision points between now and mid-December 2026.
That structure changes everything about how you should be thinking about taxes, diversification, and timing. Let me walk through what the lockup actually looks like — and what to start planning for right now.
The SPCX IPO at a Glance
| IPO Date | June 12, 2026 |
| Ticker / Exchange | SPCX / Nasdaq |
| IPO Price | $135 per share |
| First-Day Close | $161 (+19.3%) |
| Amount Raised | $75 billion (largest IPO in history) |
| Valuation at IPO | ~$1.77 trillion |
| Lockup Structure | Staggered — 9 release windows over 180 days |
What Is a Lockup Period and Why Does SpaceX Have One?
A lockup period is a window after an IPO where insiders — employees, executives, and early investors — are restricted from selling their shares. The point is to prevent a flood of selling on day one that could tank the stock price.
Most IPOs use a standard 180-day lockup. One date. Everybody's shares unlock at the same time. It's simple, but it creates a well-known problem: when the lockup expires, a wave of selling hits the market all at once and the stock often drops.
SpaceX did something different. According to the S-1 filing, the company structured a staggered lockup that releases shares in stages over the full 180-day period. For employees, this is good news — earlier access to liquidity. But it also means you have more decisions to make, and each one has different tax and financial planning implications.
The Full SPCX Lockup Schedule
Here's the complete breakdown from the S-1 filing. All dates are approximate based on the June 12, 2026 first trading date.
| Window | Timing | Shares Released | Cumulative |
|---|---|---|---|
| After Q2 Earnings | Mid-Jul – Sep 2026 | 20% | 20% |
| Performance Release* | Conditional | +10% | Up to 30% |
| Day 70 | ~Aug 21, 2026 | ~7% | ~37% |
| Day 90 | ~Sep 10, 2026 | ~7% | ~44% |
| Day 105 | ~Sep 25, 2026 | ~7% | ~51% |
| Day 120 | ~Oct 10, 2026 | ~7% | ~58% |
| Day 135 | ~Oct 25, 2026 | ~7% | ~65% |
| After Q3 Earnings | Mid-Oct – Dec 2026 | +28% | ~93% |
| Day 180 — Full Release | ~Dec 8, 2026 | Remaining | 100% |
*Performance release: triggers if SPCX trades at or above $175.50 (30% above $135 IPO price) for 5 of 10 consecutive trading days before Q2 earnings. If not met, these shares roll into the later time-based tranches. Elon Musk and certain major investors are subject to a separate 366-day lockup (~June 2027).
Why the Staggered Structure Changes How You Plan
A traditional single-date lockup is straightforward. You have one decision: sell, hold, or sell some. The staggered structure is different because it creates a sequence of decisions — and each one affects the ones that follow.
Tax brackets are cumulative.
If you sell 20% after Q2, another chunk in September, and more in November — all of it stacks on your 2026 return. California doesn't care which lockup window it came from. It's all taxed as ordinary income at the state level. By December, you may have pushed yourself into brackets you didn't anticipate.
Concentration risk shifts with every sale.
After your first sale, your portfolio is less concentrated in SPCX. After the second, even less. The question at each window isn't "should I sell?" in a vacuum — it's "given what I've already sold and what I plan to sell later, what does my concentration look like right now?"
Different equity types hit differently.
If you hold RSUs, ISOs, and NSOs, selling shares from each type has different tax consequences. RSU income is taxed at ordinary rates when shares vest. ISO exercises can trigger the Alternative Minimum Tax. NSOs create ordinary income at exercise plus payroll taxes. Coordinating which equity you sell at which window is where real tax planning lives.
The California Angle
If you work at SpaceX headquarters in Hawthorne — or anywhere in California — there's an additional layer that most national guides skip over entirely.
| Tax Component | California Employee | Texas Employee |
|---|---|---|
| Federal income tax (top rate) | 37% | 37% |
| State income tax (top rate) | 13.3% | 0% |
| Net Investment Income Tax | 3.8% | 3.8% |
| Combined potential marginal rate | 50%+ | ~40.8% |
Rates shown are top marginal rates on ordinary income for high earners. Actual rates depend on income level and filing status. California taxes capital gains as ordinary income — there is no preferential state rate for long-term gains.
The practical implication for lockup planning: the sequence in which you sell, the year in which income is recognized, and whether you can hold certain shares long enough to qualify for federal long-term capital gains treatment all matter. A few months of timing can shift the math meaningfully.
On $1 million in equity compensation income, a California-based SpaceX employee could owe roughly $100,000 more in state taxes alone compared to an employee in a no-income-tax state. Strategies to manage your California tax exposure →
How Equity Types Change the Lockup Calculus
"Selling SpaceX stock" isn't one thing. If you hold multiple types of equity, each one interacts with the lockup windows differently.
| Type | When Taxed | Tax Treatment | Watch Out For |
|---|---|---|---|
| RSUs | At vesting | Ordinary income on FMV at vest; capital gains on subsequent appreciation | Vesting into high tax brackets |
| ISOs | At exercise (AMT); at sale (income tax) | LTCG if holding periods met; otherwise ordinary income | AMT exposure on large spreads |
| NSOs | At exercise | Ordinary income + payroll taxes on spread at exercise | Stacking on top of other income sources |
| ESPP | At sale | Split between ordinary income and capital gains depending on disposition | Qualifying vs. disqualifying dispositions |
SpaceX RSUs vest on a 5-year schedule at 20% per year. Tax treatment is general — consult a qualified tax professional for your specific situation.
Coordinating which equity you sell at which window — rather than just selling whatever unlocks first — is where the planning happens. Compare stock options and RSUs in California →
What to Do Right Now — Before Any Window Opens
The period between today and the first lockup window is the most valuable planning time you have. Here's where to focus.
Step 1
Know what you actually hold.
Pull your equity statements and catalog every grant: type (RSU, ISO, NSO, ESPP), number of shares, vesting schedule, cost basis, and exercise price where applicable. If you hold multiple types, you need to understand how each one gets taxed — because "selling SpaceX stock" isn't one thing.
Step 2
Model the tax scenarios.
Run the numbers on what happens if you sell 20% at Window 1, versus waiting and selling a larger block later. Model the AMT impact if you're considering exercising ISOs. Look at the combined federal and state picture, not just one or the other. 2026 has its own set of tax changes that factor into this.
Step 3
Build a lockup-by-lockup plan.
Rather than reacting at each window, map out a rough plan across all of them. How much do you want to diversify? Over what time frame? What's your target concentration by year-end? This doesn't have to be rigid — but having a framework beats making nine separate emotional decisions.
Step 4
Assemble your team.
This kind of planning sits at the intersection of tax, investment management, and behavioral decision-making. A financial advisor, a CPA or tax professional, and possibly an estate planning attorney should be in the conversation — ideally before the first window opens, not after.
This Isn't a One-Time Event
The biggest mistake I see with IPO lockups is treating them as isolated moments. "The lockup expired, I sold, it's done." With SpaceX's staggered structure, you have six months of decision points. Each one builds on the last.
The employees who come out of this well are the ones who planned the sequence — not just the first trade.
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Financial Planning for SpaceX Employees →This article is for informational and educational purposes only and does not constitute investment, tax, or legal advice. All references to tax treatment, equity compensation mechanics, and lockup schedules are general in nature and may not reflect your specific situation. Consult with a qualified tax professional and financial advisor before making financial decisions.