SpaceX has already made history with its IPO. Now, investors are getting another reminder that going public comes with a very different set of pressures.
The company’s shares are facing another lockup expiry on August 20, when roughly 7% of SpaceX’s total shares become eligible for sale. That may sound like a relatively small portion of the company, but with SpaceX valued in the trillions, even a small release of shares can have a meaningful impact on the stock.
And after the wild ride since its June IPO, investors are watching closely.
From IPO excitement to a sharp reality check
SpaceX went public on June 11 with an IPO price of $135 per share, in what was one of the biggest public listings ever.
The excitement was immediate.
Shares climbed above $225 within days, as investors rushed to get exposure to Elon Musk’s vision for the company. That vision goes well beyond rockets and launches.
SpaceX is being valued on expectations around:
- Starlink and satellite internet
- AI and space-based data centers
- Computer chip manufacturing
- Space tourism
- Future space infrastructure
- Potential asteroid mining
For investors, it was an opportunity to buy into a company that sits at the intersection of several major technology and infrastructure trends.
But the excitement did not last.
Within less than two months, SpaceX shares fell as low as $108.27, before recovering to around $145.
That kind of volatility is not unusual for a newly listed company. The market is still trying to figure out what the stock is worth, while early shareholders are getting their first opportunities to sell.
That is where lockups become important.
So, what exactly is a lockup?
When a private company goes public, investors who already owned shares usually cannot immediately sell them.
A lockup period is essentially a temporary restriction that prevents pre-IPO shareholders from selling their shares for a specific period after the listing.
The idea is fairly straightforward.
Imagine a company has thousands of early investors who have been holding shares for years. If all of them were suddenly allowed to sell on the day of the IPO, the market could be flooded with shares.
That could put significant pressure on the stock.
A lockup gives the new public market some breathing room.
It also gives new investors more confidence that existing shareholders are not going to immediately cash out.
SpaceX is doing things differently
The interesting part about SpaceX is that it did not use one simple lockup expiry date.
Instead, the company created a staggered unlocking schedule.
That means different groups of shareholders get the opportunity to sell their shares at different points in time.
The strategy is designed to avoid a situation where a huge amount of stock suddenly becomes available for sale on one day.
SpaceX’s first major unlock came on August 6.
Only about 4.9% of the company was sold following that first unlock, despite the company having a market value of roughly $1.8 trillion based on the $135 IPO price.
Now another unlock is taking place.
On August 20, around 7% of SpaceX’s total shares become eligible for sale.
That does not mean all of those shares will actually be sold.
And that distinction matters.
Unlocking shares does not mean investors will sell
Just because shareholders are allowed to sell does not mean they will rush to the exit.
Some investors may have no reason to sell at all.
Large shareholders who strongly believe in SpaceX’s long-term story may prefer to continue holding.
Selling a large position can also send a message to the market.
If a major shareholder sells a significant amount of stock shortly after an IPO, investors may interpret that as a sign that the shareholder has less confidence in the company’s future.
For funds and investors who have publicly backed Musk and SpaceX’s long-term vision, selling immediately may not make much sense.
Other shareholders have different incentives.
Some funds specialize in investing in private companies. Once SpaceX becomes a public company, they may want to realize their gains and move that money into their next private investment.
Others may simply look at the stock price and decide that the opportunity to lock in a return is too attractive to ignore.
So the key question is not just how many shares become available.
It is how many shareholders actually choose to sell.
Why the staggered approach matters
SpaceX has been a private company for roughly 24 years.
That means there are investors who have been waiting a very long time for a chance to turn their holdings into cash.
If every shareholder had been allowed to sell after a standard six-month lockup, the market could have faced a huge wave of selling at once.
That is sometimes called a selling cliff.
A staggered structure spreads that pressure over time.
Instead of the market having to absorb a massive amount of stock on one date, shares can become available in smaller batches.
For a company as large as SpaceX, that can make a significant difference.
This isn’t a new idea
SpaceX is not the first major company to use multiple lockup periods.
When Facebook went public in 2012, it also used seven different lockup periods.
Other companies have used even more detailed arrangements.
During the IPO boom of 2020 and 2021, some companies introduced provisions that allowed certain investors and employees to sell shares earlier, sometimes based on specific conditions.
For example, an early unlock could be tied to the stock trading significantly above its IPO price for a certain number of days.
The broader trend reflects how much the private market has changed.
Companies are staying private for longer, reaching much larger valuations before going public, and bringing a much wider group of shareholders with them.
Musk is the shareholder investors will watch most closely
One reason SpaceX’s unlocks attract so much attention is the size of Elon Musk’s ownership.
Musk owns around 48% of SpaceX’s stock and controls more than four-fifths of its voting power.
However, his own shares are not part of the immediate August unlock story.
Musk is scheduled to become eligible to sell his shares on June 12, 2027, one year after the IPO.
That date could be much more significant for investors.
Musk’s stake is enormous, so any meaningful sale by him would likely receive considerable attention from the market.
But again, eligibility to sell does not automatically mean a sale will happen.
Could lockup rules change?
Yes.
Lockup agreements are laid out in the company’s IPO documents, but they can include provisions that allow the schedule to be modified.
If demand for SpaceX shares remains strong, banks involved in the offering could potentially allow additional shares to be released as part of another transaction.
There is also a financial incentive for banks to facilitate such deals because they can earn fees.
In some cases, shares that are not sold can then be placed under a new lockup period.
So the unlocking process is not necessarily a simple countdown where everything becomes available on one final date and the story ends.
What should SpaceX investors actually watch?
The biggest mistake would be to look at an unlock and assume “more shares available = stock will fall.”
It is more complicated than that.
Investors should watch several things.
- Actual selling volume: How many newly unlocked shares are actually sold?
- Share price reaction: Does the stock fall under selling pressure or absorb the additional supply comfortably?
- Investor behavior: Are long-term shareholders continuing to hold?
- Future unlocks: How much additional stock will become available later?
- Musk’s future selling plans: His June 2027 unlock will be particularly important.
- Business performance: Over time, earnings, growth and execution should matter more than lockup mechanics.
The first few months after an IPO are often dominated by supply and demand dynamics.
Eventually, the company’s actual performance has to take over.
The bigger lesson for investors
SpaceX’s story is a useful reminder that an IPO does not automatically mean the market has finished discovering a company’s value.
The initial IPO price is only the starting point.
After the listing, investors are still figuring out what they are willing to pay. At the same time, early shareholders are deciding whether to hold or take profits.
That creates a tug of war between new demand and existing supply.
SpaceX is also an unusual case because investors are not simply buying a mature aerospace company.
They are buying into a huge long-term vision that includes Starlink, AI, space infrastructure and other ambitious projects.
That creates enormous expectations.
The stock therefore has two things to prove.
First, it needs to absorb the supply coming from shareholders who are now allowed to sell.
Second, the company eventually needs to deliver enough business growth to justify the enormous valuation investors have placed on it.
The lockup unlocks may create short-term volatility.
But over the long run, SpaceX’s ability to turn Musk’s ambitious vision into real revenue, profits and sustainable growth will likely matter far more.
For now, though, every new unlock gives investors another test of how much confidence the market really has in SpaceX.