ATKINS...What you posted is the most common definition of Preferred Stock. Preferred is generally a class of stock that has characteristics of both debt and equity in a company.
Preferred in the case of Biofrontera seems to be used to identify the investor base (A Investors and B Investors) as opposed to the original founders shares (Common Shares).
BUT, the agreement also makes clear that DNAPrint is entitled to receive it's Pro-Rata share of any profits generated by Biofrontera retroactive to January 1, 2004. Why the retroactive date I haven't a clue, but that's the agreement.
Later,
W2P