<?xml version='1.0' encoding='ASCII'?>
<!-- DFIN New ActiveDisclosure (SM) Inline XBRL Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date :2024-05-16T08:22:31.3880+00:00 -->
<!-- Copyright (c) 2024 Donnelly Financial Solutions, Inc. All Rights Reserved. -->
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:nonNumeric="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:csgs="http://www.csgi.com/20240513" xmlns:dei="http://xbrl.sec.gov/dei/2023" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2022-02-16">
 <head>
  <title>8-K</title>
  <meta http-equiv="Content-Type" content="text/html"/>
 </head>
 <body style="margin: auto!important;padding: 8px;">
  <div style="display:none;"><ix:header><ix:hidden><ix:nonNumeric id="F_8c28c374-ea3e-4e81-9a4a-f685af45384d" name="dei:AmendmentFlag" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80">false</ix:nonNumeric><ix:nonNumeric id="F_bcf872bc-b3a2-4da0-8270-43c3f948a430" name="dei:EntityCentralIndexKey" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80">0001005757</ix:nonNumeric></ix:hidden><ix:references><link:schemaRef xlink:type="simple" xlink:href="csgs-20240513.xsd"/></ix:references><ix:resources><xbrli:context id="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001005757</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2024-05-13</xbrli:startDate><xbrli:endDate>2024-05-13</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div>
  <div style="min-height:0.5in;"></div>
  <p style="border-top:2.25pt double #000000;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <p style="font-size:10pt;margin-top:5.75pt;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:18pt;font-family:Times New Roman;min-width:fit-content;">UNITED STATES<br/>SECURITIES AND EXCHANGE COMMISSION<br/></span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:12pt;font-family:Times New Roman;min-width:fit-content;">WASHINGTON, D.C. 20549</span></p>
  <p style="margin-left:40%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;border-bottom:0.75pt solid #000000;margin-right:40%;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <p style="font-size:10pt;margin-top:10pt;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:18pt;font-family:Times New Roman;min-width:fit-content;">FORM </span><span style="font-size:18pt;font-family:Times New Roman;"><ix:nonNumeric id="F_4e8384d9-83aa-478b-adb8-ed0f0899e043" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:DocumentType"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:18pt;font-family:Times New Roman;min-width:fit-content;">8-K</span></ix:nonNumeric></span></p>
  <p style="margin-left:40%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;border-bottom:0.75pt solid #000000;margin-right:40%;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:12pt;font-family:Times New Roman;min-width:fit-content;">CURRENT REPORT</span></p>
  <p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:6pt;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:12pt;font-family:Times New Roman;min-width:fit-content;">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</span></p>
  <table style="border-spacing:0;table-layout:fixed;width:100.0%;border-collapse:separate;">
   <tr style="visibility:collapse;">
    <td style="width:100%;"/>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;margin-right:0.02986111111111111in;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Date of Report (Date of earliest event reported): </span><span><ix:nonNumeric id="F_7f344b3e-d6d3-4401-8d0b-e9097ff0fe78" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">May 13, 2024</span></ix:nonNumeric></span></p></td>
   </tr>
  </table>
  <p style="margin-left:40%;font-size:10pt;margin-top:5pt;font-family:Times New Roman;margin-bottom:0;border-bottom:0.75pt solid #000000;margin-right:40%;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <p style="font-size:10pt;margin-top:5pt;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="font-size:24pt;font-family:Times New Roman;"><ix:nonNumeric id="F_f4a0005a-e3be-4c98-958d-74537395161e" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityRegistrantName"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:24pt;font-family:Times New Roman;min-width:fit-content;">CSG SYSTEMS INTERNATIONAL, INC.</span></ix:nonNumeric></span></p>
  <p style="font-size:10pt;margin-top:3pt;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:7.5pt;font-family:Times New Roman;min-width:fit-content;">(Exact name of Registrant as Specified in Its Charter)</span></p>
  <p style="margin-left:40%;font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;border-bottom:0.75pt solid #000000;margin-right:40%;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <table style="border-spacing:0;table-layout:fixed;width:100.0%;border-collapse:separate;">
   <tr style="visibility:collapse;">
    <td style="width:20%;"/>
    <td style="width:1%;"/>
    <td style="width:20%;"/>
    <td style="width:18%;"/>
    <td style="width:41%;"/>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td colspan="3" style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_8117a836-02fd-4390-8f37-a01d4df6cc0a" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Delaware</span></ix:nonNumeric></span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_fc0f7e3a-a5e3-42a0-a332-96deb4bcbd94" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityFileNumber"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">0-27512</span></ix:nonNumeric></span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_840ea4c9-2e21-48a4-96b1-a4fade9131ab" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityTaxIdentificationNumber"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">47-0783182</span></ix:nonNumeric></span></p></td>
   </tr>
   <tr style="height:7pt;white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td colspan="3" style="padding-top:0.01in;vertical-align:top;"><p style="font-size:7.5pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">(State or Other Jurisdiction<br/>of Incorporation)</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:7.5pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">(Commission File Number)</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:7.5pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">(IRS Employer<br/>Identification No.)</span></p></td>
   </tr>
   <tr style="white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td colspan="3" style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_38306546-2605-4274-83ed-2006bd9c697c" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityAddressAddressLine1"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">169 Inverness Dr W</span></ix:nonNumeric></span></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_0e3861f8-db6a-4d32-a986-86a488d9de0e" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityAddressAddressLine2"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Suite 300</span></ix:nonNumeric></span></p></td>
    <td colspan="2" style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td colspan="3" style="padding-top:0.01in;vertical-align:top;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_8fb491f8-6e7e-4a85-8018-fc1f5902bdab" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityAddressCityOrTown"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Englewood</span></ix:nonNumeric></span><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">, </span><span><ix:nonNumeric id="F_753eef1b-770e-4d87-a7b0-46811f6a8a23" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityAddressStateOrProvince" format="ixt-sec:stateprovnameen"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Colorado</span></ix:nonNumeric></span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:bottom;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_2f404cf1-a207-492a-a624-829d4a08e84b" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityAddressPostalZipCode"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">80112</span></ix:nonNumeric></span></p></td>
   </tr>
   <tr style="height:7pt;white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td colspan="3" style="padding-top:0.01in;vertical-align:top;"><p style="font-size:7.5pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">(Address of Principal Executive Offices)</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:7.5pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">(Zip Code)</span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <table style="border-spacing:0;table-layout:fixed;width:100.0%;border-collapse:separate;">
   <tr style="visibility:collapse;">
    <td style="width:100%;"/>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td style="padding-top:0.125in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;margin-right:0.02986111111111111in;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Registrant&#8217;s Telephone Number, Including Area Code:</span><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span><span><ix:nonNumeric id="F_638c9b34-2810-4585-a61e-49328bcb89a6" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:CityAreaCode"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">303</span></ix:nonNumeric></span><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span><span><ix:nonNumeric id="F_566b40c8-8849-4efb-90a1-d9f59d1344f9" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:LocalPhoneNumber"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">200-2000</span></ix:nonNumeric></span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <table style="border-spacing:0;table-layout:fixed;width:100.0%;border-collapse:separate;">
   <tr style="visibility:collapse;">
    <td style="width:100%;"/>
   </tr>
   <tr style="white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td style="padding-top:0.125in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:7.5pt;font-family:Times New Roman;min-width:fit-content;">(Former Name or Former Address, if Changed Since Last Report)</span></p>
  <p style="margin-left:40%;font-size:10pt;margin-top:9.35pt;font-family:Times New Roman;margin-bottom:0;border-bottom:0.75pt solid #000000;margin-right:40%;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <p style="font-size:10pt;margin-top:9.35pt;font-family:Times New Roman;margin-bottom:6pt;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">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:</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <div style="text-indent:-24.5pt;padding-left:24.5pt;margin-top:9pt;margin-bottom:0;text-align:left;"><span style="margin-right:1em;margin-right:1em;"><span style="font-size:10pt;font-family:Times New Roman;"><ix:nonNumeric id="F_826c4a2c-5b1d-4e23-8d39-44bf67a1127b" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:WrittenCommunications" format="ixt-sec:boolballotbox"><span style="font-size:10pt;font-family:Times New Roman;">&#9744;</span></ix:nonNumeric></span></span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></div>
  <div style="text-indent:-24.5pt;padding-left:24.5pt;margin-top:6pt;margin-bottom:0;text-align:left;"><span style="margin-right:1em;margin-right:1em;"><span style="font-size:10pt;font-family:Times New Roman;"><ix:nonNumeric id="F_42f2a226-5739-4d6a-9a69-10ee5994167d" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:SolicitingMaterial" format="ixt-sec:boolballotbox"><span style="font-size:10pt;font-family:Times New Roman;">&#9744;</span></ix:nonNumeric></span></span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></div>
  <div style="text-indent:-24.5pt;padding-left:24.5pt;margin-top:6pt;margin-bottom:0;text-align:left;"><span style="margin-right:1em;margin-right:1em;"><span style="font-size:10pt;font-family:Times New Roman;"><ix:nonNumeric id="F_f4cd38ce-c67b-4b06-9f14-69e9f359e6e8" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:PreCommencementTenderOffer" format="ixt-sec:boolballotbox"><span style="font-size:10pt;font-family:Times New Roman;">&#9744;</span></ix:nonNumeric></span></span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></div>
  <div style="text-indent:-24.5pt;padding-left:24.5pt;margin-top:6pt;margin-bottom:0;text-align:left;"><span style="margin-right:1em;margin-right:1em;"><span style="font-size:10pt;font-family:Times New Roman;"><ix:nonNumeric id="F_3cced9ef-cfb1-4b9f-84c0-0c34d16ec495" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:PreCommencementIssuerTenderOffer" format="ixt-sec:boolballotbox"><span style="font-size:10pt;font-family:Times New Roman;">&#9744;</span></ix:nonNumeric></span></span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></div>
  <p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:9pt;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Securities registered pursuant to Section 12(b) of the Act:</span></p>
  <table style="border-spacing:0;table-layout:fixed;width:100.0%;border-collapse:separate;">
   <tr style="visibility:collapse;">
    <td style="width:38%;"/>
    <td style="width:1%;"/>
    <td style="width:15%;"/>
    <td style="width:1%;"/>
    <td style="width:45%;"/>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;border-bottom:0.25pt solid;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"><br/>Title of each class</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;border-bottom:0.25pt solid #ffffff03;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;border-bottom:0.25pt solid;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Trading<br/>Symbol(s)</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;border-bottom:0.25pt solid #ffffff03;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;border-bottom:0.25pt solid;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"><br/>Name of each exchange on which registered</span></p></td>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_de9ba7bc-e548-44a7-b9a6-460386472569" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:Security12bTitle"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">Common Stock, Par Value $0.01 Per Share</span></ix:nonNumeric></span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_e647d9c0-c9dc-4cea-a20a-f75b5f0567a9" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:TradingSymbol"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">CSGS</span></ix:nonNumeric></span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span><ix:nonNumeric id="F_6e39248d-ea64-4d78-a8fb-de5061c1ebb9" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:SecurityExchangeName" format="ixt-sec:exchnameen"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">The Nasdaq Stock Market LLC</span></ix:nonNumeric></span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;&#8239;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;&#8239;240.12b-2 of this chapter).</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Emerging growth company </span><span style="font-size:10pt;"><ix:nonNumeric id="F_4bad0637-5f88-47ab-8ea9-a38f511d0cdb" contextRef="C_3e4a346b-cdc6-445f-811d-08dcf2b65a80" name="dei:EntityEmergingGrowthCompany" format="ixt-sec:boolballotbox"><span style="font-size:10pt;font-family:Times New Roman;">&#9744;</span></ix:nonNumeric></span></p>
  <p style="font-size:10pt;margin-top:9pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">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. </span><span style="font-size:10pt;font-family:Times New Roman;">&#9744;</span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;border-bottom:2.25pt double #000000;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <div style="flex-direction:column;display:flex;min-height:0.5in;justify-content:flex-end;"></div>
  <hr style="page-break-after:always;"/>
  <div style="min-height:0.5in;"></div>
  <p style="font-size:10pt;margin-top:18pt;font-family:Times New Roman;margin-bottom:6pt;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Item 5.02.  Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.</span></p>
  <p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">On May 16, 2024, CSG Systems International, Inc. (&#8220;CSG&#8221;) announced that it had appointed Samantha Greenberg as a new member of CSG&#8217;s Board of Directors (the &#8220;Board&#8221;), effective May 13, 2024.  The By-Laws of CSG Systems International, Inc. provide for its Board to be divided into three classes, each having a three-year term.  Ms. Greenberg will be a member of the Class I directors, with a term of office to continue until CSG&#8217;s next annual meeting of stockholders, currently anticipated to be held in May 2025.  Ms. Greenberg will also serve on the Audit Committee.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">In conjunction with Ms. Greenberg&#8217;s appointment, the Board approved a form of Indemnification Agreement between CSG and Ms. Greenberg, effective May 13, 2024.  Under the terms of the indemnification agreement, CSG would indemnify Ms. Greenberg to the fullest extent permitted by law against all expenses incurred if she were to become party to civil, criminal, administrative, investigative, or other actions related to her services as a director of CSG.  A copy of CSG&#8217;s standard indemnification agreement has been previously filed with the SEC.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Ms. Greenberg does not have any family relationships with any executive officer or director of CSG or its affiliates.  She is not a party to any transaction requiring disclosure under Item 404(a) of Regulation S-K.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Ms. Greenberg shall receive the standard director compensation arrangement comprised of (on an annual basis), a director fee of $75,000, a committee fee of $7,500, and a $200,000 restricted stock award which shall vest in its entirety on the first anniversary of the grant date.</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">  </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">A copy of CSG&#8217;s press release announcing Ms. Greenberg&#8217;s appointment, dated May 16, 2024, is attached hereto as Exhibit 99.1 and is incorporated by reference.</span></p>
  <p style="font-size:10pt;margin-top:18pt;font-family:Times New Roman;margin-bottom:6pt;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Item 5.07.  Submission of Matters to a Vote of Security Holders.</span></p>
  <p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">On May 15, 2024, CSG held its Annual Meeting of Stockholders.  The proposals voted upon at the meeting, which are more fully described in CSG&#8217;s proxy statement dated April 1, 2024 (the &#8220;2024 Proxy&#8221;), and the results of the vote (with the percentage of total votes cast in parentheses) were as follows:</span></p>
  <p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Proposal 1:  Election of Directors.  </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">The table below shows the results of the stockholders&#8217; vote for the election of the Class III Directors, with terms expiring in 2027:</span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:100.0%;border-collapse:separate;margin-right:auto;">
   <tr style="visibility:collapse;">
    <td style="width:20.856%;"/>
    <td style="width:1.04%;"/>
    <td style="width:23.975%;"/>
    <td style="width:1.04%;"/>
    <td style="width:17.696%;"/>
    <td style="width:1.04%;"/>
    <td style="width:1.04%;"/>
    <td style="width:15.617%;"/>
    <td style="width:1.04%;"/>
    <td style="width:1.04%;"/>
    <td style="width:1.04%;"/>
    <td style="width:13.537%;"/>
    <td style="width:1.04%;"/>
   </tr>
   <tr style="height:10pt;background-color:#ffffff;white-space:pre-wrap;word-break:break-word;">
    <td style="vertical-align:top;border-bottom:0.5pt solid #000000;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Name of Director</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">For</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Against</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td colspan="2" style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Abstain</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td colspan="2" style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Non-Votes</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
   </tr>
   <tr style="height:10pt;background-color:#cff0fc;white-space:pre-wrap;word-break:break-word;">
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">Brian Shepherd</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">24,567,881 (98.6%)</span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">338,897 (1.4%)</span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">37,141</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="border-top:0.5pt solid #000000;vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">1,878,802</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
   </tr>
   <tr style="height:10pt;background-color:#ffffff;white-space:pre-wrap;word-break:break-word;">
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">Silvio Tavares</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">24,365,057 (97.8%)</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">553,502 (2.2%)</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">25,360</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">1,878,802</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
   </tr>
   <tr style="height:10pt;background-color:#cff0fc;white-space:pre-wrap;word-break:break-word;">
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">Tse Li &#8220;Lily&#8221; Yang</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">24,553,890 (98.5%)</span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">367,107 (1.5%)</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">22,922</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">1,878,802</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Proposal 2:  Advisory Vote to Approve the Compensation of CSG's Named Executive Officers (&#8220;NEOs&#8221;).  </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">The table below shows the results of the stockholders&#8217; non-binding advisory vote on the compensation of CSG&#8217;s NEOs:</span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:99.0%;border-collapse:separate;margin-right:auto;">
   <tr style="visibility:collapse;">
    <td style="width:23.469%;"/>
    <td style="width:1.02%;"/>
    <td style="width:24.49%;"/>
    <td style="width:1.02%;"/>
    <td style="width:1.02%;"/>
    <td style="width:24.49%;"/>
    <td style="width:1.02%;"/>
    <td style="width:1.02%;"/>
    <td style="width:1.02%;"/>
    <td style="width:19.388%;"/>
    <td style="width:1.02%;"/>
    <td style="width:1.02%;"/>
   </tr>
   <tr style="height:10pt;background-color:#ffffff;white-space:pre-wrap;word-break:break-word;">
    <td style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">For</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Against</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td colspan="2" style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Abstain</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td colspan="2" style="vertical-align:top;border-bottom:0.5pt solid #000000;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Non-Votes</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;text-align:left;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
   </tr>
   <tr style="height:10pt;background-color:#cff0fc;white-space:pre-wrap;word-break:break-word;">
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">24,262,670 (97.5%)</span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">628,392 (2.5%)</span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">52,857</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="border-top:0.5pt solid #000000;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">1,878,802</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Proposal 3:  Ratification of the Appointment of KPMG LLP as the Independent Registered Public Accounting Firm for Fiscal 2024.  </span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">The table below shows the results of the stockholders&#8217; vote for the ratification of the appointment of KPMG LLP as CSG&#8217;s independent registered public accounting firm for fiscal 2024:</span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:99.0%;border-collapse:separate;margin-right:auto;">
   <tr style="visibility:collapse;">
    <td style="width:31.634%;"/>
    <td style="width:2.04%;"/>
    <td style="width:32.653%;"/>
    <td style="width:2.04%;"/>
    <td style="width:1.02%;"/>
    <td style="width:28.574%;"/>
    <td style="width:1.02%;"/>
    <td style="width:1.02%;"/>
   </tr>
   <tr style="height:10pt;background-color:#ffffff;white-space:pre-wrap;word-break:break-word;text-align:left;">
    <td style="vertical-align:top;border-bottom:0.5pt solid #000000;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">For</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #000000;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Against</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td colspan="2" style="vertical-align:top;border-bottom:0.5pt solid #000000;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">Abstain</span></p></td>
    <td style="vertical-align:top;border-bottom:0.5pt solid #ffffff03;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;"> </span></p></td>
   </tr>
   <tr style="height:10pt;background-color:#cff0fc;white-space:pre-wrap;word-break:break-word;">
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">26,347,966 (98.3%)</span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">452,808 (1.7%)</span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">21,947</span></p></td>
    <td style="vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="vertical-align:top;text-align:center;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:right;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:18pt;font-family:Times New Roman;margin-bottom:6pt;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">Item 9.01.  Financial Statements and Exhibits.</span></p>
  <p style="font-size:10pt;margin-top:12pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">(d) Exhibits</span><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:6pt;font-family:Times New Roman;min-width:fit-content;"> </span></p>
  <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:95.0%;border-collapse:separate;">
   <tr style="visibility:collapse;">
    <td style="width:5.32%;"/>
    <td style="width:1.06%;"/>
    <td style="width:93.62%;"/>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">99.1</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">  </span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><a href="csgs-ex99_1.htm"><span style="color:#0000ff;white-space:pre-wrap;text-decoration:underline;min-width:fit-content;">Press release of CSG Systems International, Inc. dated May 16, 2024</span></a></p></td>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">104</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;padding-right:0.01in;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">Cover Page Interactive Data File (embedded within the Inline XBRL document)</span><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">  </span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <div style="flex-direction:column;display:flex;min-height:0.5in;justify-content:flex-end;"></div>
  <hr style="page-break-after:always;"/>
  <div style="min-height:0.5in;"></div>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:9.35pt;text-align:center;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">SIGNATURES</span></p>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:9.35pt;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">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.</span></p>
  <table style="border-spacing:0;table-layout:fixed;width:100.0%;border-collapse:separate;">
   <tr style="visibility:collapse;">
    <td style="width:6%;"/>
    <td style="width:44%;"/>
    <td style="width:4%;"/>
    <td style="width:46%;"/>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:4.3pt;font-family:Times New Roman;margin-bottom:4.3pt;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;min-width:fit-content;">CSG SYSTEMS INTERNATIONAL, INC.</span></p></td>
   </tr>
   <tr style="white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:4.3pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">Date:</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:4.3pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">May 16, 2024</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:4.3pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">By:</span><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;"> </span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;border-bottom:0.25pt solid;"><p style="font-size:10pt;margin-top:4.3pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">/s/ Lori J. Szwanek</span></p></td>
   </tr>
   <tr style="height:10pt;white-space:pre-wrap;word-break:break-word;">
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;min-width:fit-content;">&#160;</span></p></td>
    <td style="padding-top:0.01in;vertical-align:top;"><p style="font-size:10pt;margin-top:0.7pt;font-family:Times New Roman;margin-bottom:9.35pt;text-align:left;"><span style="color:#000000;white-space:pre-wrap;min-width:fit-content;">Lori J. Szwanek<br/>Chief Accounting Officer</span></p></td>
   </tr>
  </table>
  <p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><span style="white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">&#160;</span></p>
  <div style="flex-direction:column;display:flex;min-height:0.5in;justify-content:flex-end;"></div>
  <hr style="page-break-after:always;"/>
 </body>
</html>
[{"type": "8-K", "sequence": "1", "filename": "csgs-20240513.htm", "description": "8-K", "secsgml_size_bytes": 70046}]
{"company-data": {"conformed-name": "CSG SYSTEMS INTERNATIONAL INC", "cik": "0001005757", "assigned-sic": "7374", "organization-name": "06 Technology", "irs-number": "470783182", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-27512", "film-number": "24953660"}, "business-address": {"street1": "169 INVERNESS DR W", "street2": "SUITE 300", "city": "ENGLEWOOD", "state": "CO", "zip": "80112", "phone": "3037962850"}, "mail-address": {"street1": "169 INVERNESS DR W", "street2": "SUITE 300", "city": "ENGLEWOOD", "state": "CO", "zip": "80112"}}
8-K
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):
May 13, 2024
CSG SYSTEMS INTERNATIONAL, INC.
(Exact name of Registrant as Specified in Its Charter)
Delaware
0-27512
47-0783182
(State or Other Jurisdiction
of Incorporation)
(Commission File Number)
(IRS Employer
Identification No.)
169 Inverness Dr W
Suite 300
Englewood
,
Colorado
80112
(Address of Principal Executive Offices)
(Zip Code)
Registrant's Telephone Number, Including Area Code:
303
200-2000
(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(s)
Name of each exchange on which registered
Common Stock, Par Value $0.01 Per Share
CSGS
The Nasdaq Stock Market LLC
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 5.02.  Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On May 16, 2024, CSG Systems International, Inc. ("CSG") announced that it had appointed Samantha Greenberg as a new member of CSG's Board of Directors (the "Board"), effective May 13, 2024.  The By-Laws of CSG Systems International, Inc. provide for its Board to be divided into three classes, each having a three-year term.  Ms. Greenberg will be a member of the Class I directors, with a term of office to continue until CSG's next annual meeting of stockholders, currently anticipated to be held in May 2025.  Ms. Greenberg will also serve on the Audit Committee.
In conjunction with Ms. Greenberg's appointment, the Board approved a form of Indemnification Agreement between CSG and Ms. Greenberg, effective May 13, 2024.  Under the terms of the indemnification agreement, CSG would indemnify Ms. Greenberg to the fullest extent permitted by law against all expenses incurred if she were to become party to civil, criminal, administrative, investigative, or other actions related to her services as a director of CSG.  A copy of CSG's standard indemnification agreement has been previously filed with the SEC.
Ms. Greenberg does not have any family relationships with any executive officer or director of CSG or its affiliates.  She is not a party to any transaction requiring disclosure under Item 404(a) of Regulation S-K.
Ms. Greenberg shall receive the standard director compensation arrangement comprised of (on an annual basis), a director fee of $75,000, a committee fee of $7,500, and a $200,000 restricted stock award which shall vest in its entirety on the first anniversary of the grant date.
A copy of CSG's press release announcing Ms. Greenberg's appointment, dated May 16, 2024, is attached hereto as Exhibit 99.1 and is incorporated by reference.
Item 5.07.  Submission of Matters to a Vote of Security Holders.
On May 15, 2024, CSG held its Annual Meeting of Stockholders.  The proposals voted upon at the meeting, which are more fully described in CSG's proxy statement dated April 1, 2024 (the "2024 Proxy"), and the results of the vote (with the percentage of total votes cast in parentheses) were as follows:
Proposal 1:  Election of Directors.
The table below shows the results of the stockholders' vote for the election of the Class III Directors, with terms expiring in 2027:
Name of Director
For
Against
Abstain
Non-Votes
Brian Shepherd
24,567,881 (98.6%)
338,897 (1.4%)
37,141
1,878,802
Silvio Tavares
24,365,057 (97.8%)
553,502 (2.2%)
25,360
1,878,802
Tse Li "Lily" Yang
24,553,890 (98.5%)
367,107 (1.5%)
22,922
1,878,802
Proposal 2:  Advisory Vote to Approve the Compensation of CSG's Named Executive Officers ("NEOs").
The table below shows the results of the stockholders' non-binding advisory vote on the compensation of CSG's NEOs:
For
Against
Abstain
Non-Votes
24,262,670 (97.5%)
628,392 (2.5%)
52,857
1,878,802
Proposal 3:  Ratification of the Appointment of KPMG LLP as the Independent Registered Public Accounting Firm for Fiscal 2024.
The table below shows the results of the stockholders' vote for the ratification of the appointment of KPMG LLP as CSG's independent registered public accounting firm for fiscal 2024:
For
Against
Abstain
26,347,966 (98.3%)
452,808 (1.7%)
21,947
Item 9.01.  Financial Statements and Exhibits.
(d) Exhibits
99.1
Press release of CSG Systems International, Inc. dated May 16, 2024
104
Cover Page Interactive Data File (embedded within the Inline XBRL document)
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.
CSG SYSTEMS INTERNATIONAL, INC.
Date:
May 16, 2024
By:
/s/ Lori J. Szwanek
Lori J. Szwanek
Chief Accounting Officer