SpaceX Bitcoin Holdings currently stand at 18,712 BTCs, valued at $1.55 billion. Arkham Intelligence flagged the position on October 8, 2026, noting that the coins sit in Coinbase Prime custody and carry the firm’s “BTC Treasury Company” tag.
Arkham first linked the addresses years earlier, and the stack has remained essentially static since the company’s public filings.
The most recent on-chain activity was a small $88 test transfer in July 2026.
How Large Are SpaceX Bitcoin Holdings Compared with Other Corporates?
The 18,712 BTC places SpaceX among the top corporate holders. Tesla, a sister Musk-linked company, still reports 11,509 BTC, bringing the combined Musk-affiliated total above 30,000 coins.
SpaceX disclosed the exact figure in its S-1 ahead of the June 2026 initial public offering (IPO), revealing a cost basis of roughly $661 million—about $35,300 per coin.
At current prices, the unrealised gain sits well above $800 million.
Why Does Coinbase Prime Custody Matter for SpaceX Bitcoin Holdings?
Institutional-grade custody reduces operational risk and simplifies accounting for a public company.
Coinbase Prime already serves other large treasury holders and government agencies, so the choice aligns with standard corporate practice.
Meanwhile, the coins remain fully under SpaceX control; Arkham’s labels simply make the addresses visible to the public.
Still, most of the position has stayed dormant for months.
Have SpaceX Bitcoin Holdings Changed Since the IPO?
On-chain data and subsequent filings show almost no movement. The July 2026 $88 test transaction between two tagged wallets was the only notable activity.
Public reports confirm the 18,712 BTC figure has held steady through multiple price swings in 2026.
In addition, the company has not announced any new purchases or sales, treating the stack as a long-term treasury asset rather than a trading position.
What Does the Quiet Stack Signal About Corporate Bitcoin Strategy?
SpaceX appears content to let the position ride. Bitcoin’s price recovery in recent weeks lifted the value by roughly $190–360 million over short windows without any action from the company.
Beyond that, the unchanged holdings reinforce a simple message: once the coins landed in Coinbase Prime, management saw little reason to adjust the allocation.
Observers tracking Arkham’s SpaceX entity page will continue watching for any larger transfers that might signal a shift.
Can On-Chain Trackers Fully Capture the BTC Holdings?
Arkham’s early identification covered only part of the total before the IPO disclosure.
Roughly half the coins sit in custodial arrangements that pure on-chain clustering cannot always see.
The public S-1 closed that gap and confirmed the full 18,712 BTC. Later price-driven valuation changes therefore reflect market moves rather than changes in coin count.
SpaceX Bitcoin holdings of 18,712 BTC at $1.55 billion stand as one of the largest corporate treasury positions publicly visible today.
The coins remain quietly custodied at Coinbase Prime, with almost no on-chain activity since mid-2026.
