Strategy just added another 24,869 BTC in a single week. The May 18 8-K makes the mechanics plain: every coin was purchased using proceeds from ATM share sales, at an average price of $80,985, between May 11 and May 17, 2026.

Aggregate holdings now stand at 843,738 BTC. The cumulative average purchase price across the entire position is $75,700 per BTC.

The ATM Engine Keeps Running

The purchase was funded through the existing ATM program, with net proceeds presented after sales commissions. That detail matters because it confirms the company is still drawing on the current offering rather than the larger reserve sitting behind it.

On March 23, 2026, Strategy announced a new $21.0 billion offering of $MSTR stock, referred to in the filing as the $MSTR Increase. That capacity cannot be deployed until the existing offering is substantially depleted. The 8-K discloses that the aggregate $MSTR stock amount available for issuance reflects the combined remaining capacity of both programs. The sequencing means the company has a staged runway: exhaust the current offering first, then roll into the $21 billion reserve.

How much runway remains in the current offering is not disclosed in this 8-K. That figure will matter for sizing the next several weeks of purchase activity.

Position Scale and the Last Filed Valuation

The most recent SEC-disclosed fair market value of the Bitcoin position was approximately $64.04 billion as of April 26, 2026, per the May 5 10-Q, at a reference price of $78,258 per BTC. That snapshot predates this week's purchase. The 843,738 BTC figure now on the books is larger than the position that generated that valuation, and the per-coin average purchase price of $80,985 for this tranche sits above the April 26 reference price.

The next quarterly filing will update the fair market value under FASB's fair-value accounting rules, which send Bitcoin price movements directly through reported earnings. Given the size of the position, even modest Bitcoin price swings produce headline-level income statement effects.

Filing Risk and Disclosure Cadence

$MSTR's Filing Risk Score sits at 100, reflecting the density and recency of capital markets disclosures the company generates. This 8-K is the latest in a sequence of weekly or near-weekly purchase announcements that have defined the company's disclosure rhythm since 2020. The elevated disclosure cadence is a feature of the strategy, not a signal of distress.

The BTC Exposure Score of 85 reflects what the filing confirms: Bitcoin is the central asset, the ATM is the primary funding mechanism, and equity dilution is the price of accumulation.

$MSTR's short-term price trend has been upward over the past three months, with the stock up roughly 26% from its February lows through May 20, though it remains well below its 52-week high and has pulled back about 7% over the past week, per cached price context as of May 20.

The Number That Would Change the Read

The remaining capacity in the current ATM offering is the key disclosure to watch. Once that figure approaches exhaustion, the $MSTR Increase becomes the active program, and the pace of future purchases will depend on how aggressively Strategy draws on that $21 billion reserve. The next 8-K purchase update, or a prospectus supplement disclosing remaining ATM capacity, would sharpen that picture considerably.

Research only. Not investment advice.