Tesla disclosed in an 8K that it had entered into an equity distribution agreement - read an "At-the-market" offering - with banks including Goldman Sachs, BofA Securities, Barclays Capital, Citigroup Global Markets, Deutsche Bank, Morgan Stanley, Credit Suisse, SG Americas, Wells Fargo and BNP Paribas (pretty much every possible bank) to sell up to $5 billion in shares from time to time based on Tesla's instructions.