<SEC-DOCUMENT>0001140361-21-011790-index.html : 20210406
<SEC-HEADER>0001140361-21-011790.hdr.sgml : 20210406
<ACCEPTANCE-DATETIME>20210406144038
ACCESSION NUMBER:		0001140361-21-011790
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20210406
DATE AS OF CHANGE:		20210406

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35435
		FILM NUMBER:		21808903

	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>DEFA14A
<SEQUENCE>1
<FILENAME>nc10022051x2_defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: nc10022051x2_defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>nc10022051x2_nc01.jpg
<TEXT>
Document 2 - file: nc10022051x2_nc01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>nc10022051x2_nc02.jpg
<TEXT>
Document 3 - file: nc10022051x2_nc02.jpg

</DOCUMENT>
</SEC-DOCUMENT>