Earlier quoted context omitted.
It works as follows, there is a line of people who need to get paid, If the startup took on any debt, at the front of the line is a bank. Their 'note' usually gets paid first. $POOL -= $BANK When people invested in the Series A, B, C, ... their stock came with a 'liquidation preference' (which can have a few variants, but the two most common are, the investor chooses if they want the liquidation preference or the com…
The implicit question is—where the acquisition allocates $0 to common, in what sense are the board of directors fulfilling their fiduciary duty to common shareholders in approving the deal?
It depends heavily on circumstances, but in a less than amazing sale the acquiring company often wants an incentive for employees to stay. So the acquisition offer will ensure that common gets nothing but they'll be covered by an earn-out over the next year(s).
As you can imagine the negotiation gets very tricky because investors do not generally participate in the earn-out.