<SEC-DOCUMENT>0001437749-22-007171-index.html : 20220428
<SEC-HEADER>0001437749-22-007171.hdr.sgml : 20220428
<ACCEPTANCE-DATETIME>20220325105528
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001437749-22-007171
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20220325

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:		CORRESP

	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>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>logo01.jpg
<TEXT>
Document 2 - file: logo01.jpg

</DOCUMENT>
</SEC-DOCUMENT>