MicroStrategy acquired an additional 7,420 BTC for approximately $458.2 million at an average price of $61,750 per Bitcoin between Sept. 13 and Sept. 19, according to an SEC filing on Friday.

The company now holds 252,220 BTC, worth roughly $15.8 billion. MicroStrategy’s total holdings were bought at an average price of $39,266 per Bitcoin, a total cost of around $9.9 billion, including fees and expenses.