(Bloomberg) -- Strategy plans to sell $500 million of dollar-denominated perpetual preferred stock. Most Read from BloombergICE Eyes Massive California Tent Facility Amid Space ConstraintsHow Britain’s Most Bike-Friendly New Town Got BuiltThe Dark Prophet of Car-Clogged CitiesWashington, DC, Region Braces for ‘Devastating’ Cuts from CongressNYC Plans for Flood Protection Without Federal FundsThe enterprise software company, formerly known as MicroStrategy, intends to use proceeds for general cor