<SEC-DOCUMENT>0001050442-22-000009-index.html : 20220215
<SEC-HEADER>0001050442-22-000009.hdr.sgml : 20220215
<ACCEPTANCE-DATETIME>20220214174957
ACCESSION NUMBER:		0001050442-22-000009
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20220215
DATE AS OF CHANGE:		20220214

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
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87297
		FILM NUMBER:		22635565

	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:			DISCIPLINED GROWTH INVESTORS INC /MN
		CENTRAL INDEX KEY:			0001050442
		IRS NUMBER:				411901233
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		150 S 5TH ST
		STREET 2:		SUITE 2550
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55402
		BUSINESS PHONE:		6123174100

	MAIL ADDRESS:	
		STREET 1:		150 S. FIFTH ST
		STREET 2:		SUITE 2550
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55402
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>PRLB_20211231.txt
<DESCRIPTION>13G PRLB 2021-12-31
<TEXT>
Document 1 - file: PRLB_20211231.txt

</DOCUMENT>
</SEC-DOCUMENT>