SpaceX filed a Form 8-K with the U.S. Securities and Exchange Commission (SEC) on June 15, 2026, days after the close of one of the largest U.S. IPOs in recent memory, and the document confirms what the previous S-1 registration statement already reported: 18,712 BTC remains parked on the company’s balance sheet, untouched through multiple market cycles.
The Bitcoin cash position carries a cost basis of approximately $661 million (approximately $35,300 per coin) and was valued at a fair value of $1.293 billion as of March 31, 2026, according to the filing. At current prices, that figure is closer to $1.45 billion.
This SpaceX news came as Bitcoin fell -2.5% overnight, sliding to $65,000 after a strong start to the week that saw it climb above $67,000, leaving investors wondering if $70,000 was on the way.
$BTC failed to reclaim the $67,000-$68,000 zone.
Now the key level to maintain is $64,000-$65,000.
If Bitcoin loses this, it will eventually give back most of its short-term gains. pic.twitter.com/uI6P5k8oyD
— Ted (@TedPillows) June 17, 2026
What SpaceX’s IPO Numbers Really Say
The SPCX IPO priced 638.9 million Class A shares at $135 each, including the full exercise of the underwriters’ option for an additional 83.3 million shares.
The stock opened at $150 in its Nasdaq debut and closed the first session at $160.95, a 19% gain from the IPO price, after hitting an intraday high of $176.52.
The June 15 Form 8-K (a current report that discloses significant company events to shareholders) describes how SpaceX intends to deploy these products.
According to the filing, the company will devote its capital to expanding AI computing infrastructure, improving launch infrastructure and launch vehicles, and increasing the scale and capacity of its satellite constellations, with the remainder allocated for general corporate purposes.
SpaceX $SPCX is going the Tesla $TSLA route.
An initial 60-70% pump followed by a sharp 50% crash. pic.twitter.com/83KGogVdEW
— Ted (@TedPillows) June 16, 2026
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The Bitcoin Treasury Angle Investors Shouldn’t Miss
SpaceX first accumulated Bitcoin in 2021 and has neither increased nor sold its position since, remaining stable through the 2022 bear market, the 2024 halving cycle and now its own IPO. The BTC balance sheet entry sits alongside Tesla’s 11,509 BTC, meaning Elon Musk-linked entities collectively control around 30,221 BTC worth around $2.2 billion.
This ranking places SpaceX among the largest corporate Bitcoin holders in the world. Mara Holdings now holds 36,303 BTC, edging out SpaceX in the corporate accumulation rankings, while SpaceX itself ranks seventh among tracked corporate treasuries – ahead of Coinbase.
There is a structural change that matters for the future. As part of the 2024 GAAP accounting rule updates, Bitcoin held as an asset must now be marked to market each reporting period.
This means that BTC price fluctuations will reflect directly on SpaceX’s income statement and equity, giving SPCX shares the partial characteristics of a Bitcoin ETF, without actually being one. A $10,000 change in BTC price translates to approximately $187 million in unrealized gains or losses on SpaceX’s books.
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On-chain analysis missed half the picture
(SOURCE: Arkham)
Prior to the S-1 filing, on-chain analytics firm Arkham had allocated approximately 8,280 BTC to SpaceX wallet addresses, less than half of the 18,712 BTC disclosed.
The discrepancy exists because SpaceX holds its Bitcoins through third-party custody agreements, in which coins are in omnibus wallets that are not directly traceable to a single on-chain business entity.
The takeaway for investors tracking companies’ Bitcoin holdings: SEC filings remain the authoritative source. On-chain analysis, no matter how sophisticated, cannot fully account for custodial positions held off-exchange or in institutional custodial structures. SpaceX’s disclosure is a clear example of why the two data sources require careful reconciliation.
The 8-K also details governance mechanisms relevant to SPCX shareholders. More than 103 million shares of series preferred stock converted into Class A or Class B common stock upon IPO closing.
Class B shares each carry 10 votes to Class A’s one vote, preserving outsized voting control for Elon Musk post-listing. The 2024 Amended Stock Incentive Plan includes 300,894,150 shares of Class A stock available for employee awards, with a separate stock purchase plan carrying an additional 24,026,920 shares.
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The post SpaceX SEC Deposit: 18,712 BTC Still on Balance Sheet After IPO appeared first on 99Bitcoins.
