Key TakeawaysWork management platform Smartsheet announced that it agreed to be taken over by Blackstone and Vista Equity Partners for $8.4 billion.The agreement gives Smartsheet investors$56.50 in cash for every share they own.Smartsheet shares soared more than 6% Tuesday afternoon after the acquisition news. Smartsheet (SMAR) shares jumped Tuesday after the work management platform said it agreed to be purchased by asset manager Blackstone (BX) and investment firm Vista Equity Partners for $8.4 billion i ...