the stock is doomed, check out asmongold's video https://www.youtube.com/watch?v=hNXQ2bYik78. more importantly, insiders have been selling a ton, for example the founder of iron source. Silver lake sold all of theirs direct stocks for example.
Also Sequoia lent Unity 1 billion (using convertible notes which will be exchanged for stock at maturity) to finance the IronSource deal. Why would they do that?