Strategy Adds 1,665 Bitcoin for $142.7 Million

Strategy Inc. disclosed in a Sept. 28, 2026 Form 8-K that it bought 1,665 bitcoin between Sept. 21 and Sept. 27. The Strategy Bitcoin purchase September 2026 tranche cost about $142.7 million—roughly $85,700 per bitcoin in the figures both secondary accounts emphasize—and lifted holdings to 847,666 BTC.

What happened

Crypto Times’ Sept. 28 summary of the 8-K lists 1,665 BTC purchased for $142.7 million at about $85,706 per coin. Holdings rose to 847,666 BTC. USD assets stood at $6.02 billion as of Sept. 27, described in that account as $5.02 billion in reserve and $1.00 billion in cash. Funding came from at-the-market sales of MSTR common stock: 1,469,165 shares for $246.2 million in net proceeds. In the same window, the company retired about $151.7 million of STRC preferred shares.

ETHNews the same day cites an average purchase price near $85,681, describes the buy as the second straight weekly purchase after an early-September pause, and notes a prior-week add of 950 BTC. It also carries an aggregate treasury cost basis near $63.95 billion at an average about $75,437. Where per-coin averages differ by small rounding, this article anchors on the shared 8-K package: 1,665 BTC, about $142.7 million, 847,666 BTC held, and the ATM and STRC figures Crypto Times attributes to the filing.

Why it matters

The disclosure is a corporate treasury and capital-markets update. Equity issued through the ATM funded bitcoin purchases; preferred STRC was reduced. Readers can place the filing beside Called It coverage of bitcoin ETF outflows and Citi’s bitcoin price target as parallel market context. None of those items is a recommendation.

Weekly cadence after an early-September pause is a description of recent history in the ETHNews account, not a forecast of the next 8-K.

The ATM share sales and the STRC retirement sit beside the bitcoin buy in the same disclosure window. One raises common equity and cash; the other retires preferred; the cash then funds BTC. Compressing those three moves into a single slogan would erase the capital-structure detail both secondary accounts preserve from the 8-K.

Per-coin averages in secondary write-ups differ by tens of dollars because of rounding against the same $142.7 million headline. The shared facts that matter for the disclosure are the 1,665 BTC count, the dollar total, the new 847,666 BTC inventory and the ATM/STRC capital moves.

What's next

Purchases after Sept. 27 are not in the materials used here and are not guessed. What those materials establish is the Sept. 21–27 buy of 1,665 BTC for about $142.7 million, holdings of 847,666 BTC, about $6.02 billion of USD assets as of Sept. 27, ATM proceeds of $246.2 million from 1,469,165 MSTR shares, and about $151.7 million of STRC retired.

Crypto Times’ summary of the 8-K is here.