Proto Labs | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-BlackRock, Inc.(16.0%)
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Bodor Robert
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Director Black Archie C.
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Director Greiner Stacy
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Director Gawlick Rainer
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Director Chin Moonhie
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Director Chand Sujeet
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Director KRANTZ DONALD G
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Director WEHRWEIN SVEN
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Kenison Michael R.
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Schumacher Daniel
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Klaas Bjoern
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Schumacher Daniel
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Ryaboy Oleg
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Kenison Michael R.
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Officer Bodor Robert
Proto Labs | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-Disciplined Growth Investors, Inc.(6.74%)
Proto Labs | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-The Vanguard Group(11.33%)
Proto Labs | SC 13G/A: Statement of acquisition of beneficial ownership by individuals (Amendment)-BlackRock, Inc.(17.3%)
Proto Labs | 4: Statement of changes in beneficial ownership of securities-Chief Financial Officer Schumacher Daniel
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