Michael Saylor's strategy purchased 6,556 Bitcoins for $555.8 million last week. Michael Saylor's strategy has acquired 6,556 Bitcoins for $555.8 million, bringing the total holdings to 538,200 BTC, according to the latest report from the company to the SEC. Michael Saylor's strategy, one of the largest publicly listed Bitcoin holders in the world, has added another large purchase to its growing portfolio as the cryptocurrency trades near $85,000.