SC 13D/A

Protea Biosciences Group, Inc.

Security class unavailable · CUSIP: 74365B109

Event date: 2014-06-06

Legacy cover-page extraction is best effort and may not include every reporting person.

Filing-level shares

16,591,393

Percent of class

22.0000%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.