PROTO LABS INC filings

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SEC filings by PROTO LABS INC (ownership)
TypeFiledFilerSubjectShares OwnedPercent Owned
SC 13G/A2018-02-14LUKIS LAWRENCE JProto Labs Inc16.7%EDGAR
SC 13G/A2018-02-12VANGUARD GROUP INCProto Labs Inc2,248,1998.4%EDGAR
SC 13G/A2018-01-29RIVERBRIDGE PARTNERS LLCProto Labs Inc1,777,7826.7%EDGAR
SC 13G/A2018-01-19BlackRock Inc.Proto Labs Inc3,053,96511.5%EDGAR
SC 13G/A2017-02-13VANGUARD GROUP INCProto Labs Inc2,015,6717.6%EDGAR
SC 13G2017-02-13TimesSquare Capital Management, LLCProto Labs Inc1,547,9505.9%EDGAR
SC 13G/A2017-02-09BROWN CAPITAL MANAGEMENT LLCProto Labs Inc3,694,34514.0%EDGAR
SC 13G/A2017-01-24RIVERBRIDGE PARTNERS LLCProto Labs Inc1,996,9287.6%EDGAR
SC 13G2017-01-09BlackRock Inc.Proto Labs Inc2,729,02110.3%EDGAR
SC 13G/A2016-10-05BROWN CAPITAL MANAGEMENT LLCProto Labs Inc3,012,80211.4%EDGAR
SC 13G/A2016-02-16LUKIS LAWRENCE JProto Labs Inc1,881,8407.2%EDGAR
SC 13G/A2016-02-10FRANKLIN RESOURCES INCProto Labs Inc213,8970.8%EDGAR
SC 13G/A2016-02-10VANGUARD GROUP INCProto Labs Inc1,603,9226.1%EDGAR
SC 13G/A2016-02-05BROWN CAPITAL MANAGEMENT LLCProto Labs Inc2,596,6299.9%EDGAR
SC 13G/A2016-02-05BROWN CAPITAL MANAGEMENT LLCProto Labs Inc2,681,60110.2%EDGAR
SC 13G/A2016-02-01RIVERBRIDGE PARTNERS LLCProto Labs Inc1,783,5106.8%EDGAR
SC 13G/A2016-01-22KORNITZER CAPITAL MANAGEMENT INC /KSProto Labs Inc515,5152.0%EDGAR
SC 13G/A2015-07-10WELLS FARGO & COMPANY/MNProto Labs Inc977,4633.8%EDGAR
SC 13G/A2015-02-17LUKIS LAWRENCE JProto Labs Inc2,581,84010.0%EDGAR
SC 13G2015-02-10VANGUARD GROUP INCProto Labs Inc1,335,9415.2%EDGAR
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