While I'm sure the team is in talks with many suitors after such stupendous results I don't think it has anything to do with the silence. I used to be a fan of the frequent PRs but I think they were detrimental over the past year or so. Only dropping meaningful releases and not disclosing when they will occur keeps those playing with the stock price on thinner ice. Investors know the score and are just waiting patiently.

The trials churn forward.
Our near term activities are funded.
Christmas will be here before we know it.

Go IPIX!