Tesla and SpaceX still hold a combined 30,221 Bitcoin, and neither company has reported a sale since the positions were last set. The latest official figures come from Tesla’s securities filings and SpaceX’s registration documents, which show the coin counts frozen while the dollar values swing only with the market.
Tesla’s Form 10-K for the year ended December 31, 2025 listed 11,509 Bitcoin at a cost basis of $386 million and a fair value of $1,007 million. The same filing shows that quantity was already unchanged from December 31, 2024. Tesla’s Form 10-Q for the quarter ended June 30, 2026 then carried digital assets at $674 million, against $1,008 million at the prior year-end.
The note to that quarterly report states that the majority of those digital assets were 11,509 units of Bitcoin still held at the $386 million acquisition cost. The $334 million drop in reported value between December and June was a mark-to-market change, not a disposal.
SpaceX’s disclosure is larger and newer to public investors. A free writing prospectus filed with the Securities and Exchange Commission (SEC) in June 2026 states that as of March 31, 2026 and December 31, 2025 the company held 18,712 units of Bitcoin with a cost basis of $661 million. Fair value was $1,293 million on March 31 and $1,637 million at the end of 2025. The same sentence places the assets in Level 1 of the fair value hierarchy, meaning the price is taken from an active market.
SpaceX’s Form S-1, first filed May 20, 2026, is the registration statement that put this treasury in front of IPO investors. The company listed on Nasdaq under the ticker SPCX in June.
Added together, the two filings describe 30,221 Bitcoin. Tesla’s cost is $386 million; SpaceX’s is $661 million. The combined cost basis is therefore about $1.05 billion. Reported fair value has already moved through a wide range inside a single year: SpaceX alone marked the same 18,712 coins from $1.637 billion at the end of 2025 to $1.293 billion three months later, and Tesla’s stack moved from just over $1 billion to $674 million by June 30. Those swings are the direct result of fair-value accounting for crypto assets, which requires the carrying amount to track the market price each reporting period. A $10,000 move in Bitcoin changes Tesla’s position by roughly $115 million and SpaceX’s by roughly $187 million, before any tax effect.
No buys or sells through the IPO
The positions are old relative to the current price cycle. Tesla bought about $1.5 billion of Bitcoin in early 2021, sold a large portion in 2022, and has reported the residual 11,509 coins ever since. SpaceX also began accumulating in 2021. Its S-1 materials and later prospectus language show the 18,712-coin balance unchanged from the end of 2024 through the March 31, 2026 measurement date used in the IPO documents. Public filings do not show either company adding coins in 2025 or the first half of 2026.
That stability is the current news angle. Through the June 2026 IPO, the subsequent index inclusion, and the price recovery that followed the summer lows, the coin counts in the latest SEC documents have not changed. SpaceX’s entry into the Nasdaq-100 put the 18,712-coin line inside a benchmark tracked by large passive funds, so index investors now hold an indirect claim on that Bitcoin without a separate crypto allocation.
Tesla has been in major indexes for years, so its 11,509 coins were already inside many of the same portfolios. The two lines are still separate legal assets. A reported discussion of combining Tesla, SpaceX, and xAI has not produced a merger filing that would place both stacks under one balance sheet.
Custody is another point the primary documents clarify. SpaceX states that the Bitcoin is held with third-party custodians and valued from observable market prices. That structure explains why wallet-label estimates circulating before the S-1 were incomplete: coins at a regulated custodian do not all appear in addresses researchers had already tagged to the company. Tesla’s filings likewise treat the Bitcoin as a corporate digital-asset balance, not as coins sitting in an executive’s personal wallet.
Corporate assets, not a personal stack
The distinction between company property and personal property matters for any headline that treats the stack as Elon Musk’s Bitcoin. The 11,509 and 18,712 coins are assets of Tesla and SpaceX. Musk is chief executive of both and a large shareholder, so he has influence over treasury policy and an economic interest proportional to his equity. He does not own the coins outright. His voting power at SpaceX is especially high: the June 2026 preliminary prospectus said he would hold about 82.4% of the voting power immediately after the offering through Class A and Class B shares. That control is over the company, not a personal claim on the 18,712 Bitcoin.
No Tesla or SpaceX filing discloses a personal Bitcoin balance for Musk. Earlier public comments in which he said he held a small amount of Bitcoin, along with some Ether and Dogecoin, remain the only on-record personal figures, and they are years old.
Accounting volatility is the practical consequence for both stocks. Under the fair-value model, unrealized gains and losses flow through earnings even when no coin is sold. Tesla’s 2025 Form 10-K shows a net unrealized loss of $68 million on digital assets for that year after a large unrealized gain in 2024. SpaceX’s prospectus figures show a $344 million fair-value decline on the same 18,712 coins between December 31, 2025 and March 31, 2026.
Investors reading quarterly results therefore have to separate operating performance from the Bitcoin mark. The companies have not described the holdings as a trading book. The filings present them as treasury assets carried at fair value.
Scale is easy to overstate. Strategy, the largest corporate holder, reports hundreds of thousands of Bitcoin in its own SEC filings, an order of magnitude above the Musk-linked total. Tesla’s 11,509 coins are about 0.055% of Bitcoin’s 21 million cap. SpaceX’s 18,712 coins are about 0.089%. Combined, they are still a small fraction of circulating supply. They are large by ordinary corporate-treasury standards, which is why both names appear on public rankings of Bitcoin-holding companies, but they are not large enough to dominate the market if either firm is sold.
What the filings do not show is also part of the record. They do not show a 2026 purchase. They do not show a 2026 sale. They do not show Bitcoin at xAI or The Boring Company. They do not convert the corporate stacks into a personal net-worth line. Dollar values published after June 30, 2026 are market arithmetic on the same unit counts, not new company disclosures. Until Tesla files its September-quarter 10-Q, or SpaceX updates its digital-asset note, the operative figures remain 11,509 Bitcoin at Tesla and 18,712 Bitcoin at SpaceX.
For readers tracking the treasury story, the primary documents are Tesla’s 2025 Form 10-K, Tesla’s June 30, 2026 Form 10-Q, and SpaceX’s S-1 and June 2026 prospectus materials. The IPO filing first fixed SpaceX’s unit count in public view, and the first public quarter later carried the same 18,712 coins onto the listed balance sheet. Those are the sources that fix the unit counts, the cost bases, and the last reported fair values.
Price moves since those dates change the unmarked value of the same coins. They do not, on the evidence of the filings, change how many coins the companies hold.
Also read: Bitcoin’s Q4 Open: Price Recovery Structure Holds, Breakout Above $87,400 Still Missing
