The SpaceX insider-selling question finally has an answer. Since the June IPO, investors have watched every Form 144 filing and share unlock for signs of a flood of stock hitting the market. Tuesday brought the reveal.
Gwynne Shotwell, SpaceX’s President and Chief Operating Officer, filed to sell 342,170 shares valued at approximately $51.96 million, according to an SEC Form 144 filed September 22.
Gwynne was the executive who had run the company’s day-to-day operations for nearly two decades while Elon Musk occupied the visionary role.
Morgan Stanley Smith Barney is listed as the broker according to the same form. The implied price is approximately $151.85 per share.
The filing is notable as the first significant stock sale by a SpaceX executive since the June 12 IPO. SPCX now trades at $148, up from the $135 IPO price but below the day-one open of $150 and well below the all-time high of $225.64 reached on June 16.
Also Read: SpaceX Latest News and Stories
The mechanics and why this is not what the bears expected
According to the filing, Shotwell acquired the 342,170 shares on Sept. 22 by exercising stock options. The sale follows a Rule 10b5-1 trading plan adopted on June 23, eleven days after the IPO, meaning the transaction was scheduled in advance when Shotwell did not possess material non-public information.
The Form 144 states she had no securities sales to report in the preceding three months. The filing represents only a small fraction of the roughly 7.7 billion shares listed as outstanding.
SpaceX:
Morgan Stanley doubles down on SpaceX stock for investors
SpaceX analyst plots path to bold $100 billion claim
JPMorgan resets SpaceX price target after earnings
Let’s look at the context. The insider-selling scenario investors feared, given SpaceX’s unusual staggered lockup structure, was a wave of early investors and executives flooding the market with shares at the first opportunity.
What has actually emerged is one executive exercising options and selling the resulting shares under a preplanned trading program.
Just as notable, recent disclosures show that several high-net-worth individuals with established ties to Elon Musk have been buying SPCX shares on the open market since the IPO. In other words, the insider activity so far does not look like the one-way exit bears wanted.
SpaceX’s lockup structure has been driving investor anxiety
SpaceX’s approach to post-IPO liquidity was genuinely unusual, and understanding it explains why investors have been so focused on insider activity.
Rather than a standard 180-day lockup cliff, SpaceX implemented a rolling unlock schedule. Up to 5% of shares were made available immediately through a Directed Share Program for select employees, friends, and family.
The first major wave came on Aug. 6, releasing roughly 911.5 million shares, approximately 20% of the early pool, right after Q2 earnings. I covered that event in August, when Morgan Stanley warned of the $100 billion lockup overhang.
Related: Morgan Stanley warns SpaceX approaching its most dangerous moment
Sequential 7% tranches are scheduled at 70, 90, and 105 trading days, with the next releases due Oct. 9 and Oct. 24. The largest remaining wave will follow Q3 earnings, releasing approximately 28% of the regular insider pool, Morningstar reported.
Standard employees and early retail investors see full lockup expiry on Dec. 8, which is 180 days post-IPO. Elon Musk and core institutional backers cannot sell until June 12, 2027.
The August unlock absorbed 911.5 million shares without the catastrophic selloff many anticipated. The stock subsequently rallied approximately 35% from its post-unlock lows.
The first major SpaceX IPO lock-in expiry wave came on Aug. 6, releasing roughly 911.5 million shares, approximately 20% of the early pool, right after Q2 earnings.Shutterstock
Where SPCX stands and what the rest of 2026 means for investors
SpaceX’s market capitalization is at $1.96 trillion according to Yahoo Finance. That makes it one of the largest companies in the world by that measure. The stock at $148 is above the $135 IPO price but below both the day-one open and the all-time high, meaning many early post-IPO buyers are still underwater on their trades.
The Q2 2026 earnings I covered in August showed $7.8 billion in revenue, up 92% year over year, with Starlink connectivity revenue growing 66% year over year.
The AI compute segment generated $2.6 billion in revenue. Adjusted EBITDA grew 191%. The $18.4 billion in Q2 capital expenditure — $15.8 billion directed toward AI — was what spooked investors more than any insider trade.
Shotwell’s $52 million sale is not small by any individual measure. Against a $2 trillion market cap, it is financially immaterial. What it is, however, is a data point in the pattern investors are watching: who is selling, how much, and whether the institutional buyers absorbing those shares believe in the long-term thesis more than the early holders believe in the exit.
So far, the pattern suggests the big sellers have not arrived. Shotwell exercised options and sold what her trading plan called for. I think that’s a normal insider activity.
Related: OpenAI makes development moves to counter SpaceX and Meta