<SEC-DOCUMENT>0001437749-18-002452-index.html : 20180214
<SEC-HEADER>0001437749-18-002452.hdr.sgml : 20180214
<ACCEPTANCE-DATETIME>20180214100247
ACCESSION NUMBER:		0001437749-18-002452
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180214
DATE AS OF CHANGE:		20180214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Proto Labs Inc
		CENTRAL INDEX KEY:			0001443669
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED STRUCTURAL METAL PRODUCTS [3440]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87297
		FILM NUMBER:		18608229

	BUSINESS ADDRESS:	
		STREET 1:		5540 Pioneer Creek
		CITY:			Maple Plain
		STATE:			MN
		ZIP:			55359
		BUSINESS PHONE:		763-479-7474

	MAIL ADDRESS:	
		STREET 1:		5540 Pioneer Creek
		CITY:			Maple Plain
		STATE:			MN
		ZIP:			55359

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LUKIS LAWRENCE J
		CENTRAL INDEX KEY:			0000902246
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	MAIL ADDRESS:	
		STREET 2:		7090 SHADY OAK ROAD
		CITY:			EDEN PRAIRIE
		STATE:			MN
		ZIP:			55344
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>luki20180209_sc13ga.htm
<DESCRIPTION>SCHEDULE 13G/A
<TEXT>
Document 1 - file: luki20180209_sc13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>