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<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>UNITED STATES<br>
<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Washington, D.C. 20549</b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 18pt;"><b>FORM 8-K</b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>CURRENT REPORT</b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>PURSUANT TO SECTION 13 OR 15(d) OF</b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>THE SECURITIES EXCHANGE ACT OF 1934</b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Date of Report (Date of earliest event reported): </b><font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>November</b><b> </b><b>1</b><b>6, 2017</b></font></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 18pt;"><b>Proto Labs, Inc.</b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(Exact name of registrant as specified in its charter)</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

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			<td style="width: 25.9%; vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">Minnesota</p>
			</td>
			<td style="width: 11.6%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
			</td>
			<td style="width: 26.7%; vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">001-35435</p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<td style="width: 24.1%; vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">41-1939628</p>
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			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(State or other jurisdiction</p>

			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">of incorporation)</p>
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			<td style="width: 11.6%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<td style="width: 26.7%; vertical-align: top;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(Commission File Number)</p>
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			<td style="width: 11.6%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<td style="width: 24.1%; vertical-align: bottom;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(IRS Employer</p>

			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">Identification Number)</p>
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<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</font></p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

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			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">5540 Pioneer Creek Drive</p>

			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">Maple Plain, Minnesota</font></p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<td style="width: 48%; vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">55359</p>
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			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(Address of principal executive offices)</p>
			</td>
			<td style="width: 4%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
			</td>
			<td style="width: 48%; vertical-align: bottom;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(Zip Code)</p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
			</td>
			<td style="width: 4%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
			</td>
			<td style="width: 48%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
			</td>
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			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">Registrant<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&rsquo;s telephone number, including area code:</font></p>
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			<td style="width: 4%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
			</td>
			<td style="width: 48%; vertical-align: top; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;">
			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(763) 479-3680</p>
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<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</font></p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

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			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">Not Applicable</p>
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			<p style="margin: 0pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">(Former name or former address, if changed since last report)</p>
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<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&#8414;<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"> Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&#8414;<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&#8414;<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&#8414;<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt 0pt 30pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Emerging growth company <font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;&#9744;</font></p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;&nbsp;&#9744;</font></p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<div id="PGBK" style="width: 100%; margin-right: 0pt; margin-left: 0pt;">
<div id="PGNUM" style="width: 100%; text-align: center;">&nbsp;</div>

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<div id="PGHDR" style="width: 100%; text-align: left;">&nbsp;</div>
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<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

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			<td style="width: 13.3%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Item<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</font></b><font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>1</b><b>.0</b><b>1</b><b>. </b></font></p>
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			<td style="width: 86.7%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Entry into a Material Definitive Agreement</b><font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>.</b></font></p>
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<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt; font-family: Times New Roman, Times, serif; font-size: 10pt;">On November 16, 2017, Proto Labs, Inc. <font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">(the &ldquo;Company&rdquo;) entered into a Membership Interest Purchase Agreement (the &ldquo;Agreement&rdquo;) with Rapid Manufacturing Group, LLC, a New Hampshire limited liability company (&ldquo;RAPID&rdquo;), and each of the members of RAPID listed therein (the &ldquo;Members&rdquo;).</font></p>

<p style="margin: 0pt 0pt 0pt 7.2pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Under the terms of the agreement, <font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">the Company will acquire RAPID for $120 million consisting of $110 million in cash and $10 million in the Company&rsquo;s stock. RAPID&rsquo;s 2017 annual revenue is forecasted to be $45 million with an estimated $10 million in adjusted EBITDA. Adjusted EBITDA excludes costs that are not expected to recur after the acquisition. The Company will finance the acquisition with existing cash, drawing on a line of credit, and utilizing previously authorized but unissued shares of stock. After adjusting for investments to expand capacity to support future growth, interest expense created by the financing and&nbsp;interest income for the cash used in the transaction, the Company estimates the acquisition will be approximately $0.10 accretive to non-GAAP dilutive earnings per share in 2018. In addition, the goodwill resulting from the transaction is expected to be tax deductible over a 15 year period creating a future cash benefit.</font></p>

<p style="margin: 0pt 0pt 0pt 7.2pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">The obligations of the Company, RAPID and the Members to consummate the transactions contemplated by the Agreement are subject to the satisfaction or waiver of <font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">customary closing conditions as set forth in the Agreement, including the expiration or termination of any waiting period applicable under the Hart-Scott Rodino Act.</font></p>

<p style="margin: 0pt 0pt 0pt 7.2pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">The foregoing description of the Agreement and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the Agreement, a copy of which is attached hereto as<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;<u>Exhibit&nbsp;</u><u>2</u><u>.1</u>&nbsp;and incorporated herein by reference.</font></p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Item<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;8.01. </font></b></p>
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			<td style="width: 86.7%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Other Events.</b></p>
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<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">On November 21, 2017, the Company issued a press release announcing its execution of the<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"> Agreement. A copy of the press release is furnished as Exhibit 99.1 to this report.</font></p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">In addition, on November 21, 2017, the Company issued a press release announcing it will host an Analyst Day on December 12, 2017, at its Global Headquarters in Maple Plain, Minnesota. A copy of the press release is furnished as Exhibit 99.2 to this report.</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Item<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;9.01. </font></b></p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>Financial Statements and Exhibits.</b></p>
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<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">(<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>d) Exhibits</b></font></p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">2<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">.1</font></p>
			</td>
			<td style="width: 86.7%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><a href="ex_100838.htm" style="-sec-extract: exhibit;">Membership Interest Purchase Agreement, dated November 16, 2017, by and among Proto Labs, Inc., <font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">Rapid Manufacturing Group, LLC and the members listed therein.&nbsp;(Certain schedules and exhibits have been omitted in accordance with Item 601(b)(2) of Regulation S-K. A copy of any omitted schedule and/or exhibit will be furnished to the Securities and Exchange Commission upon request.)</font></a></p>
			</td>
		</tr>
		<tr>
			<td style="width: 13.3%; vertical-align: top;">&nbsp;</td>
			<td style="width: 86.7%; vertical-align: top;">&nbsp;</td>
		</tr>
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			<td style="width: 13.3%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">99.1<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"> </font></p>
			</td>
			<td style="width: 86.7%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;"><a href="ex_100839.htm" style="-sec-extract: exhibit;">Press release of Proto Labs, Inc. dated <font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">November 21, 2017, announcing the Membership Interest Purchase Agreement.</font></a></p>
			</td>
		</tr>
		<tr>
			<td style="width: 13.3%; vertical-align: top;">&nbsp;</td>
			<td style="width: 86.7%; vertical-align: top;">&nbsp;</td>
		</tr>
		<tr>
			<td style="width: 13.3%; vertical-align: top;">99.2</td>
			<td style="width: 86.7%; vertical-align: top;">
			<p style="margin: 0pt;"><a href="ex_100840.htm" style="-sec-extract: exhibit;">Press release of Proto Labs, Inc. dated November 21, 2017, announcing <font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">the hosting&nbsp;of an Analyst Day.</font></a></p>
			</td>
		</tr>

</table>

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<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;"><b>SIGNATURE</b></p>

<p style="margin: 0pt 7.5pt; text-align: center; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>

<p style="margin: 0pt 7.5pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p>

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			<td colspan="2" style="width: 35%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Proto Labs,<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;Inc.</font></p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<td style="width: 8%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Date:</p>
			</td>
			<td style="width: 48%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">November<font style="font-family: Times New Roman, Times, serif; font-size: 10pt;"> 21, 2017</font></p>
			</td>
			<td style="width: 4%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">By:</p>
			</td>
			<td style="width: 31%; vertical-align: top; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1px; border-bottom-style: solid;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">/s/ John A. Way</p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">&nbsp;</p>
			</td>
			<td style="width: 31%; vertical-align: top;">
			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">John A. Way</p>
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			<p style="margin: 0pt; text-align: left; font-family: Times New Roman, Times, serif; font-size: 10pt;">Chief Financial Officer</p>
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prlb20171120_8k.htm
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934
Date of Report (Date of earliest event reported):
November
1
6, 2017
Proto Labs, Inc.
(Exact name of registrant as specified in its charter)
Minnesota
001-35435
41-1939628
(State or other jurisdiction
of incorporation)
(Commission File Number)
(IRS Employer
Identification Number)
5540 Pioneer Creek Drive
Maple Plain, Minnesota
55359
(Address of principal executive offices)
(Zip Code)
Registrant
's telephone number, including area code:
(763) 479-3680
Not Applicable
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
⃞
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
⃞
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
⃞
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
⃞
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.
Emerging growth company
☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
☐
Item
1
.0
1
.
Entry into a Material Definitive Agreement
.
On November 16, 2017, Proto Labs, Inc.
(the "Company") entered into a Membership Interest Purchase Agreement (the "Agreement") with Rapid Manufacturing Group, LLC, a New Hampshire limited liability company ("RAPID"), and each of the members of RAPID listed therein (the "Members").
Under the terms of the agreement,
the Company will acquire RAPID for $120 million consisting of $110 million in cash and $10 million in the Company's stock. RAPID's 2017 annual revenue is forecasted to be $45 million with an estimated $10 million in adjusted EBITDA. Adjusted EBITDA excludes costs that are not expected to recur after the acquisition. The Company will finance the acquisition with existing cash, drawing on a line of credit, and utilizing previously authorized but unissued shares of stock. After adjusting for investments to expand capacity to support future growth, interest expense created by the financing and interest income for the cash used in the transaction, the Company estimates the acquisition will be approximately $0.10 accretive to non-GAAP dilutive earnings per share in 2018. In addition, the goodwill resulting from the transaction is expected to be tax deductible over a 15 year period creating a future cash benefit.
The obligations of the Company, RAPID and the Members to consummate the transactions contemplated by the Agreement are subject to the satisfaction or waiver of
customary closing conditions as set forth in the Agreement, including the expiration or termination of any waiting period applicable under the Hart-Scott Rodino Act.
The foregoing description of the Agreement and the transactions contemplated thereby does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the Agreement, a copy of which is attached hereto as
Exhibit
2
.1
and incorporated herein by reference.
Item
8.01.
Other Events.
On November 21, 2017, the Company issued a press release announcing its execution of the
Agreement. A copy of the press release is furnished as Exhibit 99.1 to this report.
In addition, on November 21, 2017, the Company issued a press release announcing it will host an Analyst Day on December 12, 2017, at its Global Headquarters in Maple Plain, Minnesota. A copy of the press release is furnished as Exhibit 99.2 to this report.
Item
9.01.
Financial Statements and Exhibits.
(
d) Exhibits
2
.1
Membership Interest Purchase Agreement, dated November 16, 2017, by and among Proto Labs, Inc.,
Rapid Manufacturing Group, LLC and the members listed therein. (Certain schedules and exhibits have been omitted in accordance with Item 601(b)(2) of Regulation S-K. A copy of any omitted schedule and/or exhibit will be furnished to the Securities and Exchange Commission upon request.)
99.1
Press release of Proto Labs, Inc. dated
November 21, 2017, announcing the Membership Interest Purchase Agreement.
99.2
Press release of Proto Labs, Inc. dated November 21, 2017, announcing
the hosting of an Analyst Day.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Proto Labs,
Inc.
Date:
November
21, 2017
By:
/s/ John A. Way
John A. Way
Chief Financial Officer