Feel free to contact your broker and ask about the ticker change. All of them were alerted on April 27, 2017 that a ticker change was in process.
Through correspondence with the Director of Investor Relations, Richard Oravec, it was stated that the company is waiting for the official ticker change to take place before they release any additional PRs. As one can imagine, the company does not want to create confusion around their new stock by issuing PRs that don't correlate with their company ticker/name.