Not directed at OP in particular, but with acquisitions that include shares, is there something that stops you from just dumping them straight away, essentially making it a cash only deal?
When we were acquired, Rally was a privately-held company, so our shares were illiquid. If the company was publicly-traded, we could have sold them, but there are often lockup agreements in place that restrict you from selling for a few months.
There can be lockup periods in the contract that say you can't sell for some specified period of time