MicroStrategy announced on February 24, 2021 that it had purchased approximately 19,452 bitcoin for approximately $1.026 billion in cash. The company reported an average acquisition price of approximately $52,765 per bitcoin, including fees and expenses.
The purchase increased MicroStrategy’s reported holdings to approximately 90,531 BTC, acquired for an aggregate $2.171 billion at an average cost of approximately $23,985 per bitcoin. It was one of the clearest demonstrations available on February 24 that a publicly traded operating company could use institutional capital markets to build a concentrated cryptocurrency treasury.
A billion-dollar addition to the treasury
MicroStrategy’s February 12 annual report said the company held approximately 71,079 BTC as of February 8. The February 24 announcement added 19,452 BTC to that reported balance, producing the newly disclosed total of 90,531 BTC.
Using those rounded issuer figures, Coinburn calculates that the acquisition increased the reported bitcoin count by approximately 27.4% from the February 8 level. The newly purchased coins represented approximately 21.5% of the resulting balance. These percentages are arithmetic based on company disclosures, not independently observed on-chain measurements.
The company did not disclose individual trades, execution dates, exchanges, counterparties, wallets or custody arrangements. Its $52,765 figure was an average acquisition cost inclusive of fees and expenses, not a universal bitcoin market close. Bitcoin traded continuously across multiple venues, so the announcement cannot establish one market-wide price for February 24.
MicroStrategy’s annual report illustrated the surrounding volatility. It said bitcoin had traded below $4,000 and above $44,000 in the company’s principal market during the 12 months preceding the February 12 filing. The subsequent $52,765 acquisition average showed that the company was committing substantial capital after prices had moved beyond that earlier reported range, although the undisclosed execution schedule prevents a trade-by-trade comparison.
Debt connected public markets to bitcoin
On February 19, MicroStrategy completed a private offering of $1.05 billion in 0% convertible senior notes due February 15, 2027. The notes were sold to qualified institutional buyers under Rule 144A and carried an initial conversion price of approximately $1,432.46 per MicroStrategy share.
The SEC-filed offering announcement estimated net proceeds of approximately $1.03 billion after discounts, commissions and expenses, and stated that MicroStrategy intended to use those proceeds to acquire additional bitcoin. The proximity and scale were striking: the company announced a $1.026 billion bitcoin purchase on February 24, after identifying bitcoin as the intended use of approximately $1.03 billion in net financing proceeds on February 19.
The event-day records strongly connected the financing and acquisition, but the February 24 purchase announcement did not itself trace particular dollars from the note offering to particular bitcoin trades. That distinction limits what could be asserted from contemporaneous evidence alone.
Why the structure mattered
This was not simply a company moving idle cash into another reserve asset. MicroStrategy had issued long-dated convertible debt and directed the expected proceeds toward bitcoin, linking its balance sheet, share price and future debt obligations more closely to the cryptocurrency’s performance.
The structure gave institutional buyers exposure to MicroStrategy credit and potential equity conversion rather than direct ownership of the company’s bitcoin. MicroStrategy shareholders likewise owned interests in an operating software company with debt, corporate expenses and management risk; its shares were not interchangeable with bitcoin.
No event-day record established that the acquisition caused a particular bitcoin price movement or guaranteed a favorable outcome for either noteholders or shareholders. What the evidence established was narrower and consequential: by February 24, a Nasdaq-listed company had used a billion-dollar securities offering to support a bitcoin treasury exceeding 90,000 BTC.
Later documentary confirmation
In correspondence filed with the SEC later in 2021, MicroStrategy confirmed that the February purchase was effected using proceeds from the $1.05 billion convertible-note issuance. That later record resolves the funding question but is included only as subsequent documentary confirmation, not as information available in the February 24 announcement itself.
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This article provides news and analysis, not investment, legal or tax advice. Digital assets are volatile and may result in total loss.

