If he plans to take it private he still has to make an offer acceptable to the outstanding shareholders (presumably there will be some quorum threshold and clean-up call).
Bracco invested at 18p in the depths of a pandemic before the company had FDA approval. Everything is better now. Bracco will continue to support as will Phillips.
If the majority shareholder is trying to suppress the price to buy more stock on the cheap then you can also get in on the cheap. That’s how public markets work.