<SEC-DOCUMENT>0001437749-21-003290.txt : 20210218
<SEC-HEADER>0001437749-21-003290.hdr.sgml : 20210218
<ACCEPTANCE-DATETIME>20210218164408
ACCESSION NUMBER:		0001437749-21-003290
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210216
FILED AS OF DATE:		20210218
DATE AS OF CHANGE:		20210218

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Baker Arthur R. III
		CENTRAL INDEX KEY:			0001536324

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35435
		FILM NUMBER:		21650188

	MAIL ADDRESS:	
		STREET 1:		14000 TECHNOLOGY DRIVE
		CITY:			EDEN PRAIRIE
		STATE:			MN
		ZIP:			55344-2290

ISSUER:		

	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

	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>4
<SEQUENCE>1
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    <footnotes>
        <footnote id="F1">Reflects the weighted average price of 802 shares of common stock of Proto Labs, Inc. sold by the reporting person on February 16, 2021 with sale prices ranging from $180.85 to $181.76 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F2">Reflects the weighted average price of 1,100 shares of common stock of Proto Labs, Inc. sold by the reporting person on February 16, 2021 with sale prices ranging from $182.19 to $183.17 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F3">Reflects the weighted average price of 900 shares of common stock of Proto Labs, Inc. sold by the reporting person on February 16, 2021 with sale prices ranging from $183.34 to $184.21 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F4">Reflects the weighted average price of 1,500 shares of common stock of Proto Labs, Inc. sold by the reporting person on February 16, 2021 with sale prices ranging from $184.35 to $185.33 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F5">Reflects the weighted average price of 2,100 shares of common stock of Proto Labs, Inc. sold by the reporting person on February 16, 2021 with sale prices ranging from $185.37 to $186.21 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F6">Reflects the weighted average price of 700 shares of common stock of Proto Labs, Inc. sold by the reporting person on February 16, 2021 with sale prices ranging from $186.43 to $187.34 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F7">The option vests as to 20% of the shares in five annual installments beginning on May 4, 2017.</footnote>
        <footnote id="F8">The option vests as to 20% of the shares in five annual installments beginning on February 13, 2018.</footnote>
        <footnote id="F9">The restricted stock units vest as to 25% of the shares in four annual installments beginning on February 13, 2022.</footnote>
        <footnote id="F10">The option vests as to 25% of the shares in four annual installments beginning on February 13, 2022.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ W. Morgan Burns, Attorney-in-Fact</signatureName>
        <signatureDate>2021-02-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
