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  <html xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns="http://www.w3.org/1999/xhtml" xmlns:aeis="http://www.aei.com/20191218" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrli="http://www.xbrl.org/2003/instance"><head><meta http-equiv="content-type" content="text/html" /><title></title></head><body><div style="margin-top:30pt;"></div><div style="display:none;"><ix:header><ix:hidden><ix:nonNumeric contextRef="Duration_12_18_2019_To_12_18_2019_TNLehaNTmEa9IrSizWsEwA" name="dei:EntityCentralIndexKey" id="Tc_LLEvqy95Aky8UMjV-DFU1w_2_1">0000927003</ix:nonNumeric><ix:nonNumeric 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Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:31.95%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:2.06%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:31.95%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr style="height:19.9pt;"><td style="vertical-align:bottom;width:31.95%;margin:0pt;padding:0pt;"><div style="height:19.9pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:9pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Title of each class</b></p></div></div></td><td style="vertical-align:bottom;width:2.06%;margin:0pt;padding:0pt;"><div style="height:19.9pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">&#160;&#160;&#160;&#160;</p></div></div></td><td style="vertical-align:bottom;width:31.95%;margin:0pt;padding:0pt;"><div style="height:19.9pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:9pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Trading Symbol(s)</b></p></div></div></td><td style="vertical-align:bottom;width:2.06%;margin:0pt;padding:0pt;"><div style="height:19.9pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">&#160;&#160;&#160;&#160;</p></div></div></td><td style="vertical-align:bottom;width:31.95%;margin:0pt;padding:0pt;"><div style="height:19.9pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:9pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Name of each exchange on which </b></p><p style="font-family:'Times New Roman';font-size:9pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">registered</b></p></div></div></td></tr><tr style="height:14pt;"><td style="vertical-align:top;width:31.95%;margin:0pt;padding:0pt;"><div style="height:14pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_12_18_2019_To_12_18_2019_TNLehaNTmEa9IrSizWsEwA" name="dei:Security12bTitle" id="Tc_Ye_RsLmsSEaZgmDQTPymVA_2_0"><b style="font-weight:bold;">Common Stock, $0.001&#160;par value</b></ix:nonNumeric></p></div></div></td><td style="vertical-align:bottom;width:2.06%;margin:0pt;padding:0pt;"><div style="height:14pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:31.95%;margin:0pt;padding:0pt;"><div style="height:14pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_12_18_2019_To_12_18_2019_TNLehaNTmEa9IrSizWsEwA" name="dei:TradingSymbol" id="Tc_iatFCgTzoUu0LSTNK9GUeQ_2_2"><b style="font-weight:bold;">AEIS</b></ix:nonNumeric></p></div></div></td><td style="vertical-align:bottom;width:2.06%;margin:0pt;padding:0pt;"><div style="height:14pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:31.95%;margin:0pt;padding:0pt;"><div style="height:14pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_12_18_2019_To_12_18_2019_TNLehaNTmEa9IrSizWsEwA" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="Tc_oIbWtDq6H0-b-L2MmnBSLg_2_4"><b style="font-weight:bold;">NASDAQ Global Select Market</b></ix:nonNumeric></p></div></div></td></tr></table><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;margin-bottom:12pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:6pt;margin-bottom:12pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule&#160;405 of the Securities Act of 1933 (17 CFR &#167;230.405) or Rule&#160;12b-2&#160;of the Securities Exchange Act of 1934 (17 CFR&#160;&#167;240.12b-2).&#160;Emerging growth company <ix:nonNumeric contextRef="Duration_12_18_2019_To_12_18_2019_TNLehaNTmEa9IrSizWsEwA" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="Narr_8cJQDBngVEOCRD7jJx9m8Q"><span style="font-family:'Segoe UI Symbol';">&#9744;</span></ix:nonNumeric></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:6pt;margin-bottom:12pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">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&#160;13(a)&#160;of the Exchange Act. <span style="font-family:'Segoe UI Symbol';">&#9744;</span></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:6pt;margin-bottom:12pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman';font-size:10pt;padding-bottom:1pt;padding-top:1pt;border-bottom:3.0pt solid #000000;border-top:1.0pt solid #000000;margin:0pt;"><span style="font-size:1pt;margin-bottom:12pt;visibility:hidden;">&#8203;</span></p><p style="display:none;font-family:'Times New Roman';line-height:0pt;margin:0pt;"><span style="font-size:0pt;visibility:hidden;">&#8203;</span></p><a id="_c4602319_f297_45e2_bd23_c169ee3f8994"></a></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.3%;border:0;margin:30pt 10.35% 30pt 10.35%;"></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;">Item 8.01 Other Events</p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 12pt 0pt;"><span style="white-space:pre-wrap;">On December 18, 2019, the Board of Directors of Advanced Energy Industries, Inc. (the &#8220;Company&#8221;) authorized to remove the expiration date to the Company&#8217;s share repurchase program previously announced on September 16, 2015 (the &#8220;Share Repurchase Program&#8221;) and increase the authorized amount by $25.1 million. As of December 18, 2019, the Company is now authorized to repurchase shares of the Company&#8217;s common stock of up to a total of $50.0 million, when combining the new authorization with the remaining amount of $24.9 million previously authorized under the Share Repurchase Program. The Share Repurchase Program, which was set to expire on December 31, 2019, is no longer subject to an expiration date. Repurchases under the Share Repurchase Program may be made from time-to-time in the public or private markets, through block trades, Rule 10b5-1 trading plans or other available means and may include the use of derivative contracts and structured and accelerated share repurchase agreements, all in accordance with applicable securities and other laws, including the Securities Exchange Act of 1934, as amended. There is no minimum number of shares required to be repurchased under the Share Repurchase Program, and the Share Repurchase Program may be suspended or discontinued at any time.  The Company cannot predict when or if it will repurchase any shares as such repurchases will depend on a number of factors, including constraints specified in any Rule 10b5-1 trading plans, price, general business and market conditions, and alternative investment opportunities.  Information regarding share repurchases will be available in the Company&#8217;s periodic reports on Form 10-Q and 10-K filed with the Securities and Exchange Commission.</span></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 12pt 0pt;">This Current Report on Form 8-K contains forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including forward-looking statements regarding the Share Repurchase Program. These statements are neither promises nor guarantees and involve risks and uncertainties that could cause actual results to differ materially from those stated or implied by the forward-looking statements, including, without limitation, risks relating to the Company&#8217;s ability to implement and make appropriate, timely and beneficial decisions as to when, how and if to purchase shares under the Share Repurchase Program; and other risks described in the Company&#8217;s filings with the Securities and Exchange Commission.</p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt 0pt 12pt 0pt;"><span style="visibility:hidden;">&#8203;</span></p><a id="_8a787301_e3e2_49f0_a559_71dd59524708"></a></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:24pt 0pt 0pt 0pt;">2</p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:79.3%;border:0;margin:30pt 10.35% 30pt 10.35%;"></div><div style="max-width:100%;padding-left:10.35%;padding-right:10.35%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman';font-size:10pt;font-weight:bold;text-align:center;margin:0pt 0pt 12pt 0pt;">SIGNATURES</p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">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><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:49.97%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:50.02%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:bottom;width:49.97%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:50.02%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:bottom;width:49.97%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:50.02%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:bottom;width:49.97%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:50.02%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">/s/ Paul Oldham</p></td></tr><tr><td style="vertical-align:bottom;width:49.97%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="white-space:pre-wrap;">Date:  December 20, 2019</span></p></td><td style="vertical-align:bottom;width:50.02%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">Paul Oldham</p></td></tr><tr><td style="vertical-align:bottom;width:49.97%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:50.02%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;">Chief Financial Officer&#160;&amp; Executive Vice President</p></td></tr><tr><td style="vertical-align:bottom;width:49.97%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:50.02%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td></tr></table><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New Roman';font-size:10pt;text-align:center;margin:24pt 0pt 0pt 0pt;">3</p></div></div>
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{"company-data": {"conformed-name": "ADVANCED ENERGY INDUSTRIES INC", "cik": "0000927003", "assigned-sic": "3679", "irs-number": "840846841", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-26966", "film-number": "191301112"}, "business-address": {"street1": "1625 SHARP POINT DR", "city": "FT COLLINS", "state": "CO", "zip": "80525", "phone": "9702214670"}, "mail-address": {"street1": "1625 SHARP POINT DRIVE", "city": "FORT COLLINS", "state": "CO", "zip": "80525"}}
​
​
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):
December 18, 2019
Advanced Energy Industries, Inc.
(Exact name of registrant as specified in its charter)
​
Delaware
000-26966
84-0846841
(State or other jurisdiction of incorporation)
​
(Commission File Number)
​
(IRS Employer Identification No.)
​
​
​
​
1625 Sharp Point Drive
,
Fort Collins
,
Colorado
80525
(Address of principal executive offices)
​
(Zip Code)
​
(970)
221-4670
(Registrant's telephone number, including area code)
​
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 (see General Instruction A.2. below):
​
☐
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))
​
Securities registered pursuant to Section 12(b) of the Act:
​
​
​
​
​
​
Title of each class
Trading Symbol(s)
Name of each exchange on which
registered
Common Stock, $0.001 par value
​
AEIS
​
NASDAQ Global Select Market
​
​
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). 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 8.01 Other Events
On December 18, 2019, the Board of Directors of Advanced Energy Industries, Inc. (the "Company") authorized to remove the expiration date to the Company's share repurchase program previously announced on September 16, 2015 (the "Share Repurchase Program") and increase the authorized amount by $25.1 million. As of December 18, 2019, the Company is now authorized to repurchase shares of the Company's common stock of up to a total of $50.0 million, when combining the new authorization with the remaining amount of $24.9 million previously authorized under the Share Repurchase Program. The Share Repurchase Program, which was set to expire on December 31, 2019, is no longer subject to an expiration date. Repurchases under the Share Repurchase Program may be made from time-to-time in the public or private markets, through block trades, Rule 10b5-1 trading plans or other available means and may include the use of derivative contracts and structured and accelerated share repurchase agreements, all in accordance with applicable securities and other laws, including the Securities Exchange Act of 1934, as amended. There is no minimum number of shares required to be repurchased under the Share Repurchase Program, and the Share Repurchase Program may be suspended or discontinued at any time.  The Company cannot predict when or if it will repurchase any shares as such repurchases will depend on a number of factors, including constraints specified in any Rule 10b5-1 trading plans, price, general business and market conditions, and alternative investment opportunities.  Information regarding share repurchases will be available in the Company's periodic reports on Form 10-Q and 10-K filed with the Securities and Exchange Commission.
This Current Report on Form 8-K contains forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including forward-looking statements regarding the Share Repurchase Program. These statements are neither promises nor guarantees and involve risks and uncertainties that could cause actual results to differ materially from those stated or implied by the forward-looking statements, including, without limitation, risks relating to the Company's ability to implement and make appropriate, timely and beneficial decisions as to when, how and if to purchase shares under the Share Repurchase Program; and other risks described in the Company's filings with the Securities and Exchange Commission.
​
2
SIGNATURES
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.
​
​
​
​
​
​
​
​
/s/ Paul Oldham
Date:  December 20, 2019
Paul Oldham
​
Chief Financial Officer & Executive Vice President
​
​
​
​
​
3