Four years ago, Google dished out a reported $100 million in stock to keep its VP of display advertising from getting poached by Twitter. Now, that exec - Neal Mohan - is finally leaving to join Dropbox, Re/code's Kara Swisher reports. 
Mohan first joined Google in 2008, after the search giant bought online ads company DoubleClick, where he was SVP of strategy and product management. 

Read Economic Times full report here.