THE List-you do know that private companies don't issue stock to the public right?
The more relevant DD is how has he increased the value of companies? Johan has increased revenues, market share, reduced costs/expenses, and therefore increased the value of companies whether public or private.
That is the important issue. These results increase stock prices if it is a public company.
There is plenty of available DD for you to search on your own. Many of us have found this DD. Google is your friend.