Bitcoin treasury company Strategy sold 3,588 BTC for approximately $216 million last week, according to an 8-K filing with the Securities and Exchange Commission on Monday.The firm said it sold 1,363 BTC for $80.8 million between June 29 and June 30 at an average price of $59,256 per bitcoin. It also sold 2,225 BTC for $135.2 million at an average price of $60,773 between July 1 and July 5.Strategy has therefore reduced its total holdings to 843,775 BTC — worth around $52.3 billion — bought at a...