"sell the news" plus leak triggered buying prior, which would also explain for the quite aggressive buying.
I like the PR. It says the material is the real deal and the company is quite happy with the material. That is what I have been waiting for. As I said before, the company is a material company. It is trying to make some devices but that is just for proof of concept. The company does not have the expertise, financial resources, or desire to be a device company.
The next step, proof of concept devices and white paper on material. Then partnership or buyout.