<SEC-DOCUMENT>0001437749-17-019656-index.html : 20171121
<SEC-HEADER>0001437749-17-019656.hdr.sgml : 20171121
<ACCEPTANCE-DATETIME>20171121100657
ACCESSION NUMBER:		0001437749-17-019656
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20171116
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20171121
DATE AS OF CHANGE:		20171121

FILER:

	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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35435
		FILM NUMBER:		171215596

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>prlb20171120_8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: prlb20171120_8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-2.1
<SEQUENCE>2
<FILENAME>ex_100838.htm
<DESCRIPTION>EXHIBIT 2.1
<TEXT>
Document 2 - file: ex_100838.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>ex_100839.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 3 - file: ex_100839.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>4
<FILENAME>ex_100840.htm
<DESCRIPTION>EXHIBIT 99.2
<TEXT>
Document 4 - file: ex_100840.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>protologo.jpg
<TEXT>
Document 5 - file: protologo.jpg

</DOCUMENT>
</SEC-DOCUMENT>