Strategy added 24,869 Bitcoin between May 11 and May 17, 2026. The company paid an average of $80,985 per coin, spending $2.01 billion in the week. Total holdings now stand at 843,738 BTC, with a cumulative average purchase price of $75,700 per coin. The May 18 8-K makes the source of funds explicit: every coin in this tranche was purchased using proceeds from ATM share sales.
The ATM Engine Is Still Running
The filing confirms that Strategy's acquisition cadence has not slowed. The company has been buying through its existing ATM offering, and on March 23, 2026, it announced a new $21.0 billion $MSTR Stock offering, referred to in the filing as the $MSTR Increase. That new tranche does not activate until the existing offering capacity is substantially depleted. The filing notes that net proceeds are presented after sales commissions, which is standard ATM mechanics but worth tracking as the company moves between tranches.
The practical read: Strategy has a large, pre-authorized capital pool queued behind the current offering. When the existing ATM runs dry, the $MSTR Increase steps in. The company does not need a new shareholder vote or a new registration statement to keep buying.
Position Scale and the April Fair Value Baseline
Strategy disclosed aggregate fair market value of approximately $64.04 billion as of April 26, 2026, per the May 6 10-Q, at a reference price of $78,258 per BTC. That figure predates the 24,869-coin purchase disclosed in this 8-K. The current holdings of 843,738 BTC represent a position that has grown materially since that April snapshot, though no new fair value figure accompanies this 8-K.
The cumulative average cost of $75,700 per coin sits below the $80,985 average paid in the most recent tranche. Strategy is buying at prices above its portfolio average, which is the arithmetic consequence of a rising cost basis over time. Whether that spread narrows or widens depends on where Bitcoin trades when the next tranche is deployed.
Filing Risk and the Disclosure Cadence
$MSTR's Filing Risk Score sits at 100, driven by the density of capital markets filings the company generates. This 8-K is a routine update within that pattern, not a new risk event. The elevated disclosure cadence reflects the mechanics of an active ATM program: each weekly or bi-weekly purchase update requires a Regulation FD disclosure and an Other Events item. The filing structure is repeating, not escalating.
The BTC Exposure Score of 85 reflects what the filing confirms. Bitcoin is the balance sheet. The ATM is the funding mechanism. The equity tracks the asset.
Price Context Around the Purchase
$MSTR has gained roughly 28% over the past 90 days but sits about 3% lower over the past 30 days, per cached price context as of May 20. The stock trades above its 50-day moving average but below its 20-day and 200-day moving averages, a setup that reflects the short-term recovery from the February 2026 low while the longer-term trend remains under pressure. The 52-week high was set in July 2025, more than 60% above current levels.
The crypto Fear and Greed index registered 29 at the time of this analysis, a fear reading, while Bitcoin 30-day realized volatility was running at roughly 25% annualized, a calm regime by Bitcoin standards. Strategy bought into a week where sentiment was cautious and Bitcoin price volatility was contained. The $80,985 average purchase price sits above the April fair value reference price of $78,258 per BTC.
The Next Data Point That Changes the Read
The next material disclosure is the activation of the $MSTR Increase tranche. When Strategy files an 8-K indicating that the existing offering is substantially depleted and the $21.0 billion $MSTR Increase has begun funding purchases, the scale of the acquisition program resets upward. Watch for that transition in the next several 8-K updates, and watch whether the average purchase price in subsequent tranches continues to run above the cumulative portfolio average.
Research only. Not investment advice.