<?xml version='1.0' encoding='UTF-8'?>

      <!-- iXBRL document created with: Toppan Merrill Bridge iXBRL 9.6.7556.35618 -->
      <!-- Based on: iXBRL 1.1 -->
      <!-- Created on: 11/20/2020 9:47:11 PM -->
      <!-- iXBRL Library version: 1.0.7556.35625 -->
      <!-- iXBRL Service Job ID: c96b9e1c-919c-413d-9909-0c8cbe3790aa -->

  <html xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xmlns="http://www.w3.org/1999/xhtml" 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:gkos="http://www.glaukos.com/20201117" 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_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:EntityCentralIndexKey" id="Tc_c5zGTEd8U0WVP600tN-mfQ_2_1">0001192448</ix:nonNumeric><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:AmendmentFlag" id="Tc_dXjuqSJKW0uF--z5hiF8Gw_3_1">false</ix:nonNumeric><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:CurrentFiscalYearEndDate" id="Tc_Ld7riLeooUmbqeIBfTI6Ww_4_1">--12-31</ix:nonNumeric></ix:hidden><ix:references><link:schemaRef xlink:href="gkos-20201117.xsd" xlink:type="simple"></link:schemaRef></ix:references><ix:resources><xbrli:context id="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001192448</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2020-11-17</xbrli:startDate><xbrli:endDate>2020-11-17</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div style="max-width:100%;padding-left:4.47%;padding-right:4.47%;position:relative;"><div style="clear:both;max-width:100%;position:relative;min-height:12.65pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;padding-bottom:1pt;padding-top:1pt;border-bottom:1.0pt solid #000000;border-top:3.0pt solid #000000;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p><a id="_c7239469_161a_4fd3_b963_088d387efc70"></a><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-size:18pt;font-weight:bold;">UNITED STATES<br />SECURITIES AND EXCHANGE COMMISSION</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Washington, D.C. 20549</b></p><div style="font-family:'Times New Roman','Times','serif';font-size:11.0pt;margin-bottom:0pt;min-height:1.28em;position:relative;width:100%;"><div style="background-color:#000000;height:1px;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:8pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:18pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">FORM </b><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:DocumentType" id="Narr_cWVi1RNsb0K0Ur96GNyZdA"><b style="font-weight:bold;">8-K</b></ix:nonNumeric></p><div style="font-family:'Times New Roman','Times','serif';font-size:11.0pt;margin-bottom:0pt;min-height:1.28em;position:relative;width:100%;"><div style="background-color:#000000;height:1px;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:9pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">CURRENT REPORT</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:9pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Pursuant to Section&#160;13 or 15(d) of</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">the Securities Exchange Act of 1934</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:8pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;white-space:pre-wrap;">Date of Report (Date of earliest event reported):  </b><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt:datemonthdayyearen" name="dei:DocumentPeriodEndDate" id="Narr_6E7u3R4Fw0K9wjQZrLqabw">November 17, 2020</ix:nonNumeric></p><div style="font-family:'Times New Roman','Times','serif';font-size:11.0pt;margin-bottom:0pt;min-height:1.28em;position:relative;width:100%;"><div style="background-color:#000000;height:1px;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:24pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:EntityRegistrantName" id="Narr_GtPxbocKGU-HBwumz79yGA"><b style="font-weight:bold;">Glaukos Corporation</b></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">(Exact name of registrant as specified in its charter)</b></p><div style="font-family:'Times New Roman','Times','serif';font-size:11.0pt;margin-bottom:0pt;min-height:1.28em;position:relative;width:100%;"><div style="background-color:#000000;height:1px;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:8pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><a id="_c138309e_cc72_44d7_815c_99cca7ce9bcc"></a><a id="Tc_uzCcoVYcbkW-_79adDoIjQ_2_0"></a><a id="Tc_fR-yT9Olzk2Q_IyGSOQetg_2_2"></a><a id="Tc_L_ZksoP2Tk6faeA3BThbUQ_2_4"></a><a id="Tc_HHyAbDjCGkSEWISeoTrA5A_3_0"></a><a id="Tc_0XMWuXDQJk6LOsqPFZMGMg_3_2"></a><a id="Tc_gtoImAS_mEKS8hwMnxD_RQ_3_4"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:33.1%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:1.85%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:30.08%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:1.85%;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','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:33.09%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:top;width:33.1%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:stateprovnameen" name="dei:EntityIncorporationStateCountryCode" id="Tc_x8ErRaNspEScztn0pJHsuQ_1_0"><b style="font-size:10pt;font-weight:bold;">Delaware</b></ix:nonNumeric></p></td><td style="vertical-align:top;width:1.85%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:7pt;line-height:1.19;text-align:center;margin:0pt;">&#160;&#160;&#160;&#160;</p></td><td style="vertical-align:top;width:30.08%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:EntityFileNumber" id="Tc__dG_i40RSku_vT__VSPE8g_1_2"><b style="font-size:10pt;font-weight:bold;">001-37463</b></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:1.85%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:7pt;line-height:1.19;text-align:center;margin:0pt;">&#160;&#160;&#160;&#160;</p></td><td style="vertical-align:top;width:33.09%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:EntityTaxIdentificationNumber" id="Tc_H05u1HMs-02RVPkoo9h-8g_1_4"><b style="font-size:10pt;font-weight:bold;">33-0945406</b></ix:nonNumeric></p></td></tr><tr><td style="vertical-align:top;width:33.1%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">(State or other jurisdiction</b></p></td><td style="vertical-align:top;width:1.85%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:7pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:30.08%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">(Commission</b></p></td><td style="vertical-align:bottom;width:1.85%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:7pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:33.09%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">(I.R.S. Employer</b></p></td></tr><tr><td style="vertical-align:top;width:33.1%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">of incorporation)</b></p></td><td style="vertical-align:top;width:1.85%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:7pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:30.08%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">File Number)</b></p></td><td style="vertical-align:bottom;width:1.85%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:7pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:33.09%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">Identification No.)</b></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:10pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><a id="_5ff7f7f9_9040_42be_a291_91109795c8de"></a><a id="Tc_9UCTqZsKy0yekGpIIE4jtw_5_0"></a><a id="Tc_niZqPEIKpkGkI6BYrKV5RA_5_2"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:46.42%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:bottom;width:7.14%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:46.43%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td></tr><tr><td style="vertical-align:top;width:46.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:EntityAddressAddressLine1" id="Tc_KrLWuWCClkqtXkisMzhuVA_1_0"><b style="font-size:10pt;font-weight:bold;">229 Avenida Fabricante</b></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:7.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">&#160;</b></p></td><td style="vertical-align:bottom;width:46.43%;margin:0pt;padding:0pt;"></td></tr><tr><td style="vertical-align:top;width:46.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:EntityAddressCityOrTown" id="Tc_1jBS5FY4bEaVc1AxQ7Ti3A_2_0"><b style="font-size:10pt;font-weight:bold;">San Clemente,</b></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:7.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:46.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:46.42%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="Tc_YRy_fRdpfUulJEJSKxFmYQ_3_0"><b style="font-size:10pt;font-weight:bold;">California</b></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:7.14%;border-bottom:1px solid transparent;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt 0.8pt 0pt 0pt;"><span style="font-size:10pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:46.43%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:EntityAddressPostalZipCode" id="Tc_vkkHn_Fm60Km6K8Sk-XPdg_3_2"><b style="font-size:10pt;font-weight:bold;">92672</b></ix:nonNumeric></p></td></tr><tr><td colspan="3" style="vertical-align:top;width:100%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:5pt;line-height:1.19;margin:0pt 2.8pt 0pt 0pt;">&#160;</p></td></tr><tr><td style="vertical-align:top;width:46.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">(Address of principal executive offices)</b></p></td><td style="vertical-align:bottom;width:7.14%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">&#160;</b></p></td><td style="vertical-align:top;width:46.43%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.19;text-align:center;margin:0pt 0.8pt 0pt 0pt;"><b style="font-weight:bold;">(Zip Code)</b></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-size:10pt;font-weight:bold;">Registrant&#8217;s telephone number, including area code: (</b><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:CityAreaCode" id="Narr_pDtH98crVUSea_7lV1qCtg"><b style="font-size:10pt;font-weight:bold;">949</b></ix:nonNumeric><b style="font-size:10pt;font-weight:bold;">) </b><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:LocalPhoneNumber" id="Narr_XIQ52QYSCUGUhmD6GvEjqQ"><b style="font-size:10pt;font-weight:bold;">367-9600</b></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:6pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Not Applicable</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">(Former name or former address, if changed since last report.)</b></p><div style="font-family:'Times New Roman','Times','serif';font-size:11.0pt;margin-bottom:0pt;min-height:1.28em;position:relative;width:100%;"><div style="background-color:#000000;height:1px;position:relative;top:0.6em;width:25.0%;border:none;margin:0 auto;"></div></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;margin:0pt 0pt 10pt 0pt;">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><table style="border-collapse:collapse;border:0;"><tr><td style="vertical-align:text-top;white-space:nowrap;width:36pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:boolballotbox" name="dei:WrittenCommunications" id="Narr_qDxNK1XuSEGTGLRGZeTEuw"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><span style="font-size:10pt;">Written communications pursuant to Rule&#160;425 under the Securities Act (17 CFR 230.425)</span></p></td></tr></table><table style="border-collapse:collapse;border:0;"><tr><td style="vertical-align:text-top;white-space:nowrap;width:36pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:boolballotbox" name="dei:SolicitingMaterial" id="Narr_uQjx9nzzgkWIgSnfFkOZfA"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><span style="font-size:10pt;">Soliciting material pursuant to Rule&#160;14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></p></td></tr></table><table style="border-collapse:collapse;border:0;"><tr><td style="vertical-align:text-top;white-space:nowrap;width:36pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:boolballotbox" name="dei:PreCommencementTenderOffer" id="Narr_spt7bSy72UiFYJmRVXa2_Q"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><span style="font-size:10pt;">Pre-commencement communications pursuant to Rule&#160;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></p></td></tr></table><table style="border-collapse:collapse;border:0;"><tr><td style="vertical-align:text-top;white-space:nowrap;width:36pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:boolballotbox" name="dei:PreCommencementIssuerTenderOffer" id="Narr_aforZLauk0SxAT7peC03vA"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p></td><td style="padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin-bottom:10pt;margin-top:0pt;"><span style="font-size:10pt;">Pre-commencement communications pursuant to Rule&#160;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;">Securities registered pursuant to Section 12(b) of the Act:</p><a id="_e9e214da_0185_44d7_b345_73f94922164a"></a><a id="Tc_PXC0PEZnl0C7eQRp_JMD8g_1_0"></a><a id="Tc_lbhQI9YCM0m98zo4k278Ig_1_2"></a><a id="Tc_nudJ4MinNk2hPKD4dZiM4Q_1_4"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:32.79%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:top;width:1.79%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:29.62%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:bottom;width:1.79%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td><td style="vertical-align:bottom;width:33.99%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"></div></div></td></tr><tr><td style="vertical-align:bottom;width:32.79%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;padding-left:7.2pt;text-align:center;text-indent:-7.2pt;margin:0pt;"><b style="font-weight:bold;">Title&#160;of&#160;each&#160;class:</b></p></td><td style="vertical-align:top;width:1.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">&#160;&#160;&#160;&#160;</b></p></td><td style="vertical-align:top;width:29.62%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Trading Symbol</b></p></td><td style="vertical-align:bottom;width:1.79%;border-bottom:1px solid transparent;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">&#160;&#160;&#160;&#160;</b></p></td><td style="vertical-align:bottom;width:33.99%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">Name&#160;of&#160;each&#160;exchange&#160;on&#160;which&#160;registered:</b></p></td></tr><tr><td style="vertical-align:top;width:32.79%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:Security12bTitle" id="Tc__dJazaq8I0KKZal9zL9hfQ_2_0"><span style="font-size:10pt;">Common Stock</span></ix:nonNumeric></p></td><td style="vertical-align:top;width:1.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:10pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:29.62%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" name="dei:TradingSymbol" id="Tc_NIo-UKTBoUmojPVAeRDVRQ_2_2"><span style="font-size:10pt;">GKOS</span></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:1.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:10pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:33.99%;border-top:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="Tc_171CGtSNcUCXE3esXUA3tA_2_4"><span style="font-size:10pt;">New York Stock Exchange</span></ix:nonNumeric></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="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 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).&#160;&#160;Emerging growth company&#160;</span><ix:nonNumeric contextRef="Duration_11_17_2020_To_11_17_2020_MKepvGjS3Ui2GEKGCEv1ow" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="Narr_NrTBZPeZYky3yJlIrcYTLw"><span style="font-family:'Segoe UI Symbol';font-size:10pt;">&#9744;</span></ix:nonNumeric></p><a id="eolPage2"></a><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.28;margin:0pt 0pt 8pt 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 13(a) of the Exchange Act.&#160;&#160; <span style="font-family:'Segoe UI Symbol';">&#9744;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><span style="font-size:1pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;padding-bottom:1pt;padding-top:1pt;border-bottom:3.0pt solid #000000;border-top:1.0pt solid #000000;margin:0pt;"><span style="color:#231f20;font-size:1pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><p style="display:none;font-family:'Times New Roman','Times','serif';line-height:0pt;margin:0pt;"><span style="font-size:0pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><a id="_15697255_2f7b_435d_b5de_2dc01a9a135f"></a></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:91.06%;border:0;margin:30pt 4.47% 30pt 4.47%;"></div><div style="max-width:100%;padding-left:4.47%;padding-right:4.47%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><b style="font-weight:bold;">Item 5.03&#160;&#160;&#160;&#160;Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-indent:36pt;margin:0pt;"><span style="white-space:pre-wrap;">On November 17, 2020, the Board of Directors (the &#8220;Board&#8221;) of Glaukos Corporation (the &#8220;Company&#8221;) approved amendments to the Company&#8217;s Amended and Restated Bylaws (the &#8220;Bylaws&#8221;).  In addition to purely ministerial or minor conforming changes, these amendments principally provide for the following:</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><span style="line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin-bottom:8pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"></td><td style="font-family:'Times New Roman';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.28;text-align:left;white-space:pre-wrap;">Updates to the advance notice provisions in Section 2.4 of the Bylaws to require each nominee for director to complete a written questionnaire with respect to the nominee&#8217;s background, qualifications, stock ownership and independence and to provide certain other representations and agreements to the Company regarding compliance with the Company&#8217;s corporate governance and other policies applicable to directors of the Company, voting commitments or compensatory arrangements with another party that have not been disclosed to the Company and the nominee&#8217;s current intent to serve as a director for the full term for which the nominee is standing for election.  The changes to Section 2.4 of the Bylaws also clarify that the number of nominees a stockholder may nominate for election at a stockholders&#8217; meeting cannot exceed the number of directors to be elected.</span></td></tr></table><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin-bottom:8pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"></td><td style="font-family:'Times New Roman';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.28;text-align:left;">Clarification in Section 2.8 of the Bylaws of the authority of the chairperson to conduct a stockholders&#8217; meeting, including authority to adjourn a meeting, and the Board&#8217;s authority to postpone, reschedule or cancel a previously scheduled stockholders&#8217; meeting.</span></td></tr></table><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin-bottom:8pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"></td><td style="font-family:'Times New Roman';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.28;text-align:left;">Updates to various provisions of the Bylaws, including Sections 2.5, 7.1 and 7.2, to permit electronic notices in accordance with recent amendments to the Delaware General Corporation Law.</span></td></tr></table><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin-bottom:8pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"></td><td style="font-family:'Times New Roman';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.28;text-align:left;">Revisions to Sections 2.12 and 3.9 of the Bylaws to clarify the expanded flexibility for electronic delivery of proxies and written consents in accordance with recent amendments to the Delaware General Corporation Law, and the addition of a new Section 9.5 to clarify and permit the use of electronic signatures for consents, agreements, certificates or other instruments executed on behalf of the Company.</span></td></tr></table><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin-bottom:8pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"></td><td style="font-family:'Times New Roman';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.28;text-align:left;">Addition of a new Section 9.4 providing for the federal district courts of the United States as the exclusive forum for the resolution of any complaint asserting a cause of action under the Securities Act of 1933, as amended, unless the Company consents in writing to the election of an alternative forum. The new Section 9.4 also incorporates into the Bylaws the existing state exclusive forum provision from Article X of the Company&#8217;s Certificate of Incorporation, which provides for the Court of Chancery of the State of Delaware for certain disputes between the Company and its stockholders, including derivative actions, claims involving a breach of fiduciary duty by a director, officer, employee or its stockholders, actions asserting claims under the Delaware General Corporation Law, the Certificate of Incorporation or the Bylaws and actions governed by the internal affairs doctrine.</span></td></tr></table><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin-bottom:8pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"></td><td style="font-family:'Times New Roman';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.28;text-align:left;">Revisions to Article V to clarify the Company&#8217;s required officer positions.</span></td></tr></table><table style="border-collapse:collapse;font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin-bottom:0pt;margin-top:0pt;table-layout:fixed;width:100%;border:0pt;"><tr><td style="width:36pt;"></td><td style="font-family:'Times New Roman';font-size:11pt;vertical-align:text-top;white-space:nowrap;width:18pt;padding:0pt;">&#9679;</td><td style="padding:0pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.28;text-align:left;">Revisions to Section 6.1 to permit any two authorized officers (rather than specified combinations of officers) to sign stock certificates on behalf of the Corporation.</span></td></tr></table><div style="margin-top:8pt;"></div><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><span style="font-size:1pt;font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><a id="_c161d9f4_a749_4887_8aaf_d9d08f98bb1d"></a><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><b style="font-weight:bold;">Item 9.01&#160;&#160;&#160;&#160;Financial Statements and Exhibits.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><i style="font-style:italic;">(d) Exhibits</i></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:10.49%;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','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-family:'Calibri','Helvetica','sans-serif';font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:2.42%;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','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:87.08%;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','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:bottom;width:10.49%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><b style="font-weight:bold;">Exhibit</b></p></td><td style="vertical-align:bottom;width:2.42%;border-bottom:1.0pt solid transparent;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;&#160;&#160;&#160;</p></td><td style="vertical-align:bottom;width:87.08%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><b style="font-weight:bold;">Description</b></p></td></tr><tr><td style="vertical-align:bottom;width:10.49%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">3.1</p></td><td style="vertical-align:bottom;width:2.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p></td><td style="vertical-align:bottom;width:87.08%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><a style="-sec-extract:exhibit;" href="gkos-20201117xex3d1.htm"><span style="font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;line-height:1.19;text-align:left;">Amended and Restated Bylaws of Glaukos Corporation</span></a></p></td></tr><tr><td style="vertical-align:bottom;width:10.49%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">104</p></td><td style="vertical-align:bottom;width:2.42%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><span style="line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:bottom;width:87.08%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">Cover Page Interactive Data File (embedded within the Inline XBRL document)</p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><a id="_57ce45a6_7c8f_4132_b423_48ce795589d8"></a></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;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:91.06%;border:0;margin:30pt 4.47% 30pt 4.47%;"></div><div style="max-width:100%;padding-left:4.47%;padding-right:4.47%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><b style="font-weight:bold;">SIGNATURE</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;">&#160;</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-indent:36pt;margin:0pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, 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','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:0pt;"><span style="font-size:12pt;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;"><tr><td style="vertical-align:bottom;width:49.77%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><span style="font-size:12pt;">Date: November 20, 2020</span></p></td><td colspan="3" style="vertical-align:bottom;width:50.22%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><b style="font-weight:bold;">GLAUKOS CORPORATION</b></p></td></tr><tr><td style="vertical-align:bottom;width:49.77%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><span style="line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td><td colspan="3" style="vertical-align:bottom;width:50.22%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><span style="font-weight:bold;line-height:1.28;margin-bottom:8pt;visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:bottom;width:49.77%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p></td><td style="vertical-align:bottom;width:2.86%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">By:</p></td><td colspan="2" style="vertical-align:bottom;width:47.36%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;"><i style="font-style:italic;">&#160;/s/ Joseph E. Gilliam</i></p></td></tr><tr><td style="vertical-align:bottom;width:49.77%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p></td><td style="vertical-align:bottom;width:2.86%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p></td><td style="vertical-align:bottom;width:5.49%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">Name:</p></td><td style="vertical-align:bottom;width:41.86%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">Joseph E. Gilliam&#160;</p></td></tr><tr><td style="vertical-align:bottom;width:49.77%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p></td><td style="vertical-align:bottom;width:2.86%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">&#160;</p></td><td style="vertical-align:top;width:5.49%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">Title:</p></td><td style="vertical-align:bottom;width:41.86%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;margin:0pt;">Chief Financial Officer and Senior Vice President, Corporate Development</p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.28;margin:0pt 0pt 8pt 0pt;"><span style="font-weight:bold;visibility:hidden;">&#8203;</span></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:1.19;text-align:center;margin:24pt 0pt 0pt 0pt;">3</p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;margin-left:4.47%;margin-right:4.47%;margin-top:30pt;page-break-after:avoid;width:91.06%;border:0;"></div></body></html>
[{"type": "8-K", "sequence": "1", "filename": "gkos-20201117x8k.htm", "description": "8-K", "secsgml_size_bytes": 51003}]
{"company-data": {"conformed-name": "GLAUKOS Corp", "cik": "0001192448", "assigned-sic": "3841", "irs-number": "000000000", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-37463", "film-number": "201333130"}, "business-address": {"street1": "229 AVENIDA FABRICANTE", "city": "SAN CLEMENTE", "state": "CA", "zip": "92672", "phone": "949-367-9600"}, "mail-address": {"street1": "229 AVENIDA FABRICANTE", "city": "SAN CLEMENTE", "state": "CA", "zip": "92672"}, "former-company": {"former-conformed-name": "GLAUKOS CORP", "date-changed": "20020925"}}
​
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 17, 2020
Glaukos Corporation
(Exact name of registrant as specified in its charter)
​
​
​
​
​
​
Delaware
001-37463
33-0945406
(State or other jurisdiction
​
(Commission
​
(I.R.S. Employer
of incorporation)
​
File Number)
​
Identification No.)
​
229 Avenida Fabricante
San Clemente,
​
​
California
​
92672
(Address of principal executive offices)
(Zip Code)
​
Registrant's telephone number, including area code: (
949
)
367-9600
​
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))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class:
Trading Symbol
Name of each exchange on which registered:
Common Stock
​
GKOS
​
New York Stock Exchange
​
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).  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 5.03    Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
On November 17, 2020, the Board of Directors (the "Board") of Glaukos Corporation (the "Company") approved amendments to the Company's Amended and Restated Bylaws (the "Bylaws").  In addition to purely ministerial or minor conforming changes, these amendments principally provide for the following:
​
●
Updates to the advance notice provisions in Section 2.4 of the Bylaws to require each nominee for director to complete a written questionnaire with respect to the nominee's background, qualifications, stock ownership and independence and to provide certain other representations and agreements to the Company regarding compliance with the Company's corporate governance and other policies applicable to directors of the Company, voting commitments or compensatory arrangements with another party that have not been disclosed to the Company and the nominee's current intent to serve as a director for the full term for which the nominee is standing for election.  The changes to Section 2.4 of the Bylaws also clarify that the number of nominees a stockholder may nominate for election at a stockholders' meeting cannot exceed the number of directors to be elected.
●
Clarification in Section 2.8 of the Bylaws of the authority of the chairperson to conduct a stockholders' meeting, including authority to adjourn a meeting, and the Board's authority to postpone, reschedule or cancel a previously scheduled stockholders' meeting.
●
Updates to various provisions of the Bylaws, including Sections 2.5, 7.1 and 7.2, to permit electronic notices in accordance with recent amendments to the Delaware General Corporation Law.
●
Revisions to Sections 2.12 and 3.9 of the Bylaws to clarify the expanded flexibility for electronic delivery of proxies and written consents in accordance with recent amendments to the Delaware General Corporation Law, and the addition of a new Section 9.5 to clarify and permit the use of electronic signatures for consents, agreements, certificates or other instruments executed on behalf of the Company.
●
Addition of a new Section 9.4 providing for the federal district courts of the United States as the exclusive forum for the resolution of any complaint asserting a cause of action under the Securities Act of 1933, as amended, unless the Company consents in writing to the election of an alternative forum. The new Section 9.4 also incorporates into the Bylaws the existing state exclusive forum provision from Article X of the Company's Certificate of Incorporation, which provides for the Court of Chancery of the State of Delaware for certain disputes between the Company and its stockholders, including derivative actions, claims involving a breach of fiduciary duty by a director, officer, employee or its stockholders, actions asserting claims under the Delaware General Corporation Law, the Certificate of Incorporation or the Bylaws and actions governed by the internal affairs doctrine.
●
Revisions to Article V to clarify the Company's required officer positions.
●
Revisions to Section 6.1 to permit any two authorized officers (rather than specified combinations of officers) to sign stock certificates on behalf of the Corporation.
​
Item 9.01    Financial Statements and Exhibits.
(d) Exhibits
​
​
​
Exhibit
Description
3.1
Amended and Restated Bylaws of Glaukos Corporation
104
​
Cover Page Interactive Data File (embedded within the Inline XBRL document)
​
2
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
​
Date: November 20, 2020
GLAUKOS CORPORATION
​
​
By:
/s/ Joseph E. Gilliam
Name:
Joseph E. Gilliam
Title:
Chief Financial Officer and Senior Vice President, Corporate Development
​
​
3