#SaylorBTCPurchase spending $555.8 million.

The purchase was funded by proceeds from two at-the-market stock offering programs.

Strategy now holds 538,200 BTC, purchased at an average price of $67,766 per coin.

Strategy (MSTR) has added 6,556 bitcoin (BTC) to its balance sheet, spending $555.8 million in the process, according to a regulatory filing published on Monday.

The purchase was funded using proceeds from the company's two at-the-market (ATM) stock offering programs, the filings notes.

The firm, the largest corporate holder of bitcoin, sold 1.76 million shares of its Class A common stock