Michael Saylor
Michael Saylor is facing a $100 million lawsuit for tax evasion
  • MicroStrategy added 5,455 bitcoins between August 1 and September 24, an SEC filing shows.
  • Shares were sold to finance the purchase. The firm now holds 158,245 bitcoins, worth about $4.1 billion. 
  • The latest bitcoin-buying spree came as prices for the token were sliding.

Software firm MicroStrategy spent $147.3 million on bitcoin purchases over the past two months, using stock sales to help finance the investment, an SEC filing shows.