Hacked? All my stock gone at once

I was playing a 4 person ranked match.  I was doing fine, but had a lot of dept around 300,000.  I was keeping track of my stock price and the other players were getting close to buying me out, but I was bringing in cash quickly.

I decided to quickly selling all of my resources to pay off dept.

Suddenly.. GAME OVER.. you've been bought out.

I went back to watch the replay in slow motion.  None of my stock was purchased, I owned 5 stock in myself, then the next second I was a subsidiary. Literally the next second, not before I could do anything, or it happened really fast.  There was no cool down, there wasn't even a buying of stock one at a time.  it was all at once.

Is this a bug, a hack, a new feature?

Has anyone seen this before?