MicroStrategy disclosed on December 9, 2024 that it had acquired approximately 21,550 bitcoin for approximately $2.1 billion in cash during the period from December 2 through December 8. The average purchase price was approximately $98,783 per bitcoin, including fees and expenses.
The company financed the purchases by selling 5,418,449 shares of its Class A common stock through an at-the-market offering. Those sales generated approximately $2.13 billion after commissions over the same December 2–8 window.
The development mattered beyond the size of the purchase. MicroStrategy was using access to the public equity market as a recurring mechanism for acquiring bitcoin, linking demand for its shares to concentrated exposure on its corporate balance sheet.
The filing connected stock issuance to bitcoin
MicroStrategy’s Form 8-K said the bitcoin purchases were made using proceeds from the share sales. Because both amounts were reported as rounded aggregates, the filing does not permit a dollar-for-dollar reconciliation of individual stock sales and bitcoin trades.
As of December 8, MicroStrategy and its subsidiaries held approximately 423,650 BTC acquired for an aggregate purchase price of approximately $25.6 billion. The company reported an average historical acquisition cost of approximately $60,324 per bitcoin, including fees and expenses.
Those figures were company disclosures rather than independently verified wallet or custody observations. The filing did not identify purchase timestamps, execution venues, counterparties, wallet addresses or custodians. Its $98,783 figure represented an acquisition-period average inclusive of expenses—not bitcoin’s price at a particular instant on December 9.
The financing originated from an October 30 sales agreement that authorized MicroStrategy to issue as much as $21 billion of Class A common stock through named sales agents. The December 9 filing said approximately $9.19 billion of issuance capacity remained under that agreement as of December 8.
That agreement formed the equity half of MicroStrategy’s announced “21/21 Plan,” a three-year goal of raising $42 billion through $21 billion of equity and $21 billion of fixed-income securities. The December 9 transaction showed the plan operating at scale, although the announced capital target was not a commitment that every contemplated security would be issued.
More bitcoin, but also more shares
Selling common stock avoided using an equivalent amount of operating cash or newly disclosed debt for this purchase. It also increased the share count, diluting existing investors’ proportional ownership of the company.
MicroStrategy presented a company-defined measure called “BTC Yield” to evaluate whether bitcoin holdings were increasing relative to assumed diluted shares outstanding. It reported BTC Yield of 43.2% from October 1 through December 8 and 68.7% from January 1 through December 8.
The filing expressly warned that this metric was not traditional yield, investment return, operating performance or liquidity. Its assumed diluted-share calculation did not use the treasury-stock method, ignored certain conversion and vesting conditions, and did not account for debt and other claims senior to common equity. The percentages therefore should not be read as shareholder returns or bitcoin income.
Owning MicroStrategy stock also did not give shareholders a direct ownership interest in its bitcoin. MSTR could trade at a premium or discount to the value of the company’s holdings, and its performance depended on financing terms, dilution, corporate liabilities and software operations as well as bitcoin prices.
What December 9 established
The narrow event-day conclusion was substantial: MicroStrategy had sold approximately $2.13 billion of stock and used the proceeds to support a 21,550-BTC acquisition, raising its reported reserve to 423,650 BTC.
The disclosure did not establish whether the purchases moved the broader bitcoin market, whether the shares were sold at favorable prices, or whether the strategy would ultimately benefit shareholders. It did establish that public equity issuance had become an institutional channel through which MicroStrategy could convert capital-market demand into corporate bitcoin exposure.
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