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  <title>cik0000728391-20240314</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="c-1" name="dei:EntityCentralIndexKey" id="f-17">0000728391</ix:nonNumeric><ix:nonNumeric contextRef="c-1" name="dei:AmendmentFlag" id="f-18">false</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="cik0000728391-20240314.xsd"/></ix:references><ix:resources><xbrli:context id="c-1"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0000728391</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2024-03-14</xbrli:startDate><xbrli:endDate>2024-03-14</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="i6fc291e496174f5ebda2269dd41a31d5_1"></div><div style="min-height:49.5pt;width:100%"><div style="text-align:right"><span><br/></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">UNITED STATES</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">WASHINGTON, DC 20549</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="c-1" name="dei:DocumentType" id="f-1">8-K</ix:nonNumeric> </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">CURRENT REPORT</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Date of Report (Date of earliest event reported): <ix:nonNumeric contextRef="c-1" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en" id="f-2">March 14, 2024</ix:nonNumeric></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:14pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:EntityRegistrantName" id="f-3">IPALCO ENTERPRISES, INC.</ix:nonNumeric></span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:120%">(Exact name of registrant as specified in its charter)</span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:92.022%"><tr><td style="width:1.0%"/><td style="width:49.054%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:48.746%"/><td style="width:0.1%"/></tr><tr style="height:5pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen" id="f-4">Indiana</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:EntityTaxIdentificationNumber" id="f-5">35-1575582</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(State or other jurisdiction of incorporation or organization)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(I.R.S Employer Identification No.)</span></td></tr><tr style="height:12pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:EntityAddressAddressLine1" id="f-6">One Monument Circle</ix:nonNumeric> </span></td><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:EntityAddressCityOrTown" id="f-7">Indianapolis</ix:nonNumeric>, <ix:nonNumeric contextRef="c-1" name="dei:EntityAddressStateOrProvince" format="ixt-sec:stateprovnameen" id="f-8">Indiana</ix:nonNumeric></span></div></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:EntityAddressPostalZipCode" id="f-9">46204</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(Address of principal executive offices)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(Zip code)</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Registrant's telephone number, including area code:</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">(<ix:nonNumeric contextRef="c-1" name="dei:CityAreaCode" id="f-10">317</ix:nonNumeric>)-<ix:nonNumeric contextRef="c-1" name="dei:LocalPhoneNumber" id="f-11">261-8261</ix:nonNumeric></span></div></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">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></div><div style="text-align:justify;text-indent:18pt"><span><br/></span></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:12pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:WrittenCommunications" format="ixt-sec:boolballotbox" id="f-12">&#9744;</ix:nonNumeric></span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:12pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:SolicitingMaterial" format="ixt-sec:boolballotbox" id="f-13">&#9744;</ix:nonNumeric></span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:12pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:PreCommencementTenderOffer" format="ixt-sec:boolballotbox" id="f-14">&#9744;</ix:nonNumeric></span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:12pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="c-1" name="dei:PreCommencementIssuerTenderOffer" format="ixt-sec:boolballotbox" id="f-15">&#9744;</ix:nonNumeric></span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.866%"><tr><td style="width:1.0%"/><td style="width:35.370%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:20.664%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:40.666%"/><td style="width:0.1%"/></tr><tr><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:2pt;padding-left:2.25pt;padding-right:2.25pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Securities registered pursuant to Section&#160;12(b) of the Act:</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:2pt;padding-left:2.25pt;padding-right:2.25pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Title of Each Class</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:2pt;padding-left:2.25pt;padding-right:2.25pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Trading Symbol(s)</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:2pt;padding-left:2.25pt;padding-right:2.25pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%;text-decoration:underline">Name of Each Exchange on Which Registered</span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:2pt;padding-left:2.25pt;padding-right:2.25pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">N/A</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:2pt;padding-left:2.25pt;padding-right:2.25pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">N/A</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="margin-bottom:2pt;padding-left:2.25pt;padding-right:2.25pt;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">N/A</span></div></td></tr></table></div><div style="text-align:justify;text-indent:18pt"><span><br/></span></div><div style="text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">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).</span></div><div style="margin-top:5pt;padding-left:31.5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:40.170%"><tr><td style="width:1.0%"/><td style="width:77.268%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:20.532%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div style="margin-bottom:2pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Emerging growth company</span></div></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:12pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="c-1" name="dei:EntityEmergingGrowthCompany" format="ixt-sec:boolballotbox" id="f-16">&#9744;</ix:nonNumeric></span></td></tr></table></div><div style="padding-left:31.5pt"><span><br/></span></div><div style="text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">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="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">  </span><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#9744;</span></div><div><span><br/></span></div><div style="height:49.5pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="i6fc291e496174f5ebda2269dd41a31d5_10"></div><hr style="page-break-after:always"/><div style="min-height:49.5pt;width:100%"><div><span><br/></span></div></div><div style="-sec-extract:summary;padding-left:72pt;text-indent:-72pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:115%">Item 1.01 &#160;&#160;&#160;&#160;Entry into a Material Definitive Agreement.</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:112%;text-decoration:underline">IPALCO Senior Secured Notes Offering</span></div><div><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">On March 14, 2024, IPALCO Enterprises, Inc. (&#8220;IPALCO&#8221;) completed its previously announced sale of $400 million aggregate principal amount of 5.750% senior secured notes due 2034 (the &#8220;Notes&#8221;) pursuant to Rule 144A and Regulation S under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;). The Notes were issued pursuant to an Indenture dated March 14, 2024, by and between IPALCO and U.S. Bank Trust Company, National Association, as trustee (the &#8220;Indenture&#8221;).</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">The Notes are secured by IPALCO&#8217;s pledge of all of the outstanding common stock of its principal subsidiary, Indianapolis Power &amp; Light Company d/b/a AES Indiana (&#8220;AES Indiana&#8221;). The lien on the pledged shares will be shared equally and ratably with IPALCO&#8217;s existing senior secured notes. IPALCO has entered into a Pledge Agreement Supplement with The Bank of New York Mellon Trust Company, N.A., as successor collateral agent (the &#8220;Collateral Agent&#8221;), dated March 14, 2024 (the &#8220;Pledge Agreement Supplement&#8221;), to the Pledge Agreement between IPALCO and The Bank of New York Mellon Trust Company, N.A., as successor to Bank One, National Association, dated November 14, 2001, as supplemented by a Pledge Agreement Supplement dated June 25, 2015, a Pledge Agreement Supplement dated August 22, 2017, a Pledge Agreement Supplement dated October 31, 2018, and a Pledge Agreement Supplement dated April 14, 2020,  each by IPALCO in favor of the Collateral Agent.</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">Payments of interest on the Notes are payable on April 1 and October 1 of each year, commencing October 1, 2024. Principal on the Notes is payable on the maturity date, which is April 1, 2034. IPALCO has also agreed to file a registration statement with respect to a registered offer to exchange the Notes for new exchange notes, which will have terms substantially identical in all material respects to the Notes (except that the new exchange notes will not contain terms with respect to transfer restrictions and additional interest) under the Securities Act, with the Securities and Exchange Commission pursuant to a Registration Rights Agreement, dated as of March 14, 2024 (the &#8220;Registration Rights Agreement&#8221;), among IPALCO and J.P. Morgan Securities LLC, PNC Capital Markets LLC and U.S. Bancorp Investments, Inc., as representatives of the initial purchasers of the Notes. Failure to timely comply with certain provisions of the Registration Rights Agreement will result in increased interest payable on the Notes.</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">IPALCO intends to use the net proceeds from the Notes, together with cash on hand, to finance the redemption of its outstanding 3.70% Senior Secured Notes due 2024, of which $405 million is currently outstanding. </span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">The foregoing descriptions of the Notes, the Indenture, the Pledge Agreement Supplement and the Registration Rights Agreement do not purport to be complete and are qualified in their entirety by reference to the Indenture, the Pledge Agreement Supplement and the Registration Rights Agreement, which are filed as Exhibits 4.1, 4.2 and 4.3 hereto, respectively, and are incorporated herein by reference.</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:112%;text-decoration:underline">AES Indiana First Mortgage Bonds Offering </span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">In addition, on March 18, 2024, AES Indiana completed its previously announced sale of $650 million aggregate principal amount of 5.700% First Mortgage Bonds due 2054 (the &#8220;Bonds&#8221;) pursuant to Rule 144A and Regulation S under the Securities Act. The Bonds were issued pursuant to the Mortgage and Deed of Trust dated as of May 1, 1940 between AES Indiana and The Bank of New York Mellon Trust Company, N.A., as successor to the American National Bank and Trust Company of Chicago, as trustee, as amended and supplemented from time to time, including by the Seventy-Second Supplemental Indenture dated as of March 1, 2024 (the &#8220;Supplemental Indenture&#8221;).</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">The Bonds are secured by a pledge of substantially all of the assets of AES Indiana. Payments of interest on the Bonds are payable on April 1 and October 1 of each year, commencing October 1, 2024. Principal on the Bonds is payable on the maturity date, which is April 1, 2054. AES Indiana intends to use the net proceeds from the Bonds to repay amounts outstanding under its $300.0 million term loan agreement and its $350.0 million revolving credit agreement. </span></div><div style="height:49.5pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><hr style="page-break-after:always"/><div style="min-height:49.5pt;width:100%"><div><span><br/></span></div></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">The foregoing descriptions of the Bonds and the Supplemental Indenture do not purport to be complete and are qualified in their entirety by reference to the Supplemental Indenture, which is filed as Exhibit 4.4 hereto, and is incorporated herein by reference.</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div style="padding-left:72pt;text-indent:-72pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:115%">Item 2.03 &#160;&#160;&#160;&#160;Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.</span></div><div><span><br/></span></div><div style="text-align:justify;text-indent:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:112%">The information set forth above in response to Item 1.01 with respect to the Notes, the Indenture, the Pledge Agreement Supplement, the Registration Rights Agreement, the Bonds and the Supplemental Indenture is incorporated by reference into this Item 2.03.</span></div><div style="text-align:justify;text-indent:36pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Item 9.01&#160;&#160;&#160;&#160;Financial Statements and Exhibits</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:112%">(d) Exhibits</span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:14.142%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:83.658%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Exhibit 4.1</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="exhibit41-ipalcoxindentu.htm">Indenture between IPALCO Enterprises, Inc. and U.S. Bank Trust Company, National Association, as trustee, dated March 14, 2024, for the 5.750% Senior Secured Notes due 2034 (including the form of Note attached as an exhibit thereto)</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Exhibit 4.2</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="exhibit42-ipalcopledgeag.htm">Pledge Agreement Supplement between IPALCO Enterprises, Inc. and The Bank of New York Mellon Trust Company, N.A., as Collateral Agent, dated March 14, 2024 to the Pledge Agreement between IPALCO Enterprises, Inc. and The Bank of New York Mellon Trust Company dated November 14, 2001, as amended and supplemented</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Exhibit 4.3</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="exhibit43-registrationri.htm">Registration Rights Agreement, dated March 14, 2024, among IPALCO Enterprises, Inc. and J.P. Morgan Securities LLC, PNC Capital Markets LLC and U.S. Bancorp Investments, Inc., as representatives of the initial purchasers of the Notes </a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Exhibit 4.4</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline"><a style="-sec-extract:exhibit;color:#0000ff;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%;text-decoration:underline" href="exhibit44-72ndsupplement.htm">Seventy-Second Supplemental Indenture between AES Indiana and The Bank of New York Mellon Trust Company, N.A., as Trustee, dated March 1, 2024, for the 5.700% First Mortgage Bonds due 2054 (including the form of Bond attached as an exhibit thereto)</a></span></div></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Exhibit 104</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.</span></td></tr></table></div><div><span><br/></span></div><div><span><br/></span></div><div style="height:49.5pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="i6fc291e496174f5ebda2269dd41a31d5_13"></div><hr style="page-break-after:always"/><div style="min-height:49.5pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">SIGNATURES</span></div><div style="padding-left:36pt;padding-right:36pt;text-align:center;text-indent:-72pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</span></div><div style="text-align:justify;text-indent:45pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">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.&#160;</span></div><div style="text-indent:45pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</span></div><div style="text-indent:45pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;       </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">IPALCO Enterprises, Inc.</span></div><div style="text-indent:45pt"><span><br/></span></div><div style="text-indent:45pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:86.752%"><tr><td style="width:1.0%"/><td style="width:45.698%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:7.274%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:43.728%"/><td style="width:0.1%"/></tr><tr style="height:14pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Date:  March 18, 2024</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">By:</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">/s/ Brian Hylander</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Name:</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Brian Hylander</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Title:</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:100%">Vice President, General Counsel and Secretary</span></td></tr></table></div><div style="text-indent:45pt"><span><br/></span></div><div style="text-indent:45pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">&#160;</span></div><div><span><br/></span></div><div style="height:49.5pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
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text: cik0000728391-20240314
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON, DC 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):
  March 14, 2024
  IPALCO ENTERPRISES, INC.
  (Exact name of registrant as specified in its charter)
  Indiana
  35-1575582
  (State or other jurisdiction of incorporation or organization)
  (I.R.S Employer Identification No.)
  One Monument Circle
  Indianapolis
  ,
  Indiana
  46204
  (Address of principal executive offices)
  (Zip code)
  Registrant's telephone number, including area code:
  (
  317
  )-
  261-8261
  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
  N/A
  N/A
  N/A
  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 1.01     Entry into a Material Definitive Agreement.
  IPALCO Senior Secured Notes Offering
  On March 14, 2024, IPALCO Enterprises, Inc. ("IPALCO") completed its previously announced sale of $400 million aggregate principal amount of 5.750% senior secured notes due 2034 (the "Notes") pursuant to Rule 144A and Regulation S under the Securities Act of 1933, as amended (the "Securities Act"). The Notes were issued pursuant to an Indenture dated March 14, 2024, by and between IPALCO and U.S. Bank Trust Company, National Association, as trustee (the "Indenture").
  The Notes are secured by IPALCO's pledge of all of the outstanding common stock of its principal subsidiary, Indianapolis Power & Light Company d/b/a AES Indiana ("AES Indiana"). The lien on the pledged shares will be shared equally and ratably with IPALCO's existing senior secured notes. IPALCO has entered into a Pledge Agreement Supplement with The Bank of New York Mellon Trust Company, N.A., as successor collateral agent (the "Collateral Agent"), dated March 14, 2024 (the "Pledge Agreement Supplement"), to the Pledge Agreement between IPALCO and The Bank of New York Mellon Trust Company, N.A., as successor to Bank One, National Association, dated November 14, 2001, as supplemented by a Pledge Agreement Supplement dated June 25, 2015, a Pledge Agreement Supplement dated August 22, 2017, a Pledge Agreement Supplement dated October 31, 2018, and a Pledge Agreement Supplement dated April 14, 2020,  each by IPALCO in favor of the Collateral Agent.
  Payments of interest on the Notes are payable on April 1 and October 1 of each year, commencing October 1, 2024. Principal on the Notes is payable on the maturity date, which is April 1, 2034. IPALCO has also agreed to file a registration statement with respect to a registered offer to exchange the Notes for new exchange notes, which will have terms substantially identical in all material respects to the Notes (except that the new exchange notes will not contain terms with respect to transfer restrictions and additional interest) under the Securities Act, with the Securities and Exchange Commission pursuant to a Registration Rights Agreement, dated as of March 14, 2024 (the "Registration Rights Agreement"), among IPALCO and J.P. Morgan Securities LLC, PNC Capital Markets LLC and U.S. Bancorp Investments, Inc., as representatives of the initial purchasers of the Notes. Failure to timely comply with certain provisions of the Registration Rights Agreement will result in increased interest payable on the Notes.
  IPALCO intends to use the net proceeds from the Notes, together with cash on hand, to finance the redemption of its outstanding 3.70% Senior Secured Notes due 2024, of which $405 million is currently outstanding.
  The foregoing descriptions of the Notes, the Indenture, the Pledge Agreement Supplement and the Registration Rights Agreement do not purport to be complete and are qualified in their entirety by reference to the Indenture, the Pledge Agreement Supplement and the Registration Rights Agreement, which are filed as Exhibits 4.1, 4.2 and 4.3 hereto, respectively, and are incorporated herein by reference.
  AES Indiana First Mortgage Bonds Offering
  In addition, on March 18, 2024, AES Indiana completed its previously announced sale of $650 million aggregate principal amount of 5.700% First Mortgage Bonds due 2054 (the "Bonds") pursuant to Rule 144A and Regulation S under the Securities Act. The Bonds were issued pursuant to the Mortgage and Deed of Trust dated as of May 1, 1940 between AES Indiana and The Bank of New York Mellon Trust Company, N.A., as successor to the American National Bank and Trust Company of Chicago, as trustee, as amended and supplemented from time to time, including by the Seventy-Second Supplemental Indenture dated as of March 1, 2024 (the "Supplemental Indenture").
  The Bonds are secured by a pledge of substantially all of the assets of AES Indiana. Payments of interest on the Bonds are payable on April 1 and October 1 of each year, commencing October 1, 2024. Principal on the Bonds is payable on the maturity date, which is April 1, 2054. AES Indiana intends to use the net proceeds from the Bonds to repay amounts outstanding under its $300.0 million term loan agreement and its $350.0 million revolving credit agreement.
  The foregoing descriptions of the Bonds and the Supplemental Indenture do not purport to be complete and are qualified in their entirety by reference to the Supplemental Indenture, which is filed as Exhibit 4.4 hereto, and is incorporated herein by reference.
  Item 2.03     Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.
  The information set forth above in response to Item 1.01 with respect to the Notes, the Indenture, the Pledge Agreement Supplement, the Registration Rights Agreement, the Bonds and the Supplemental Indenture is incorporated by reference into this Item 2.03.
  Item 9.01    Financial Statements and Exhibits
  (d) Exhibits
  Exhibit 4.1
  Indenture between IPALCO Enterprises, Inc. and U.S. Bank Trust Company, National Association, as trustee, dated March 14, 2024, for the 5.750% Senior Secured Notes due 2034 (including the form of Note attached as an exhibit thereto)
  Exhibit 4.2
  Pledge Agreement Supplement between IPALCO Enterprises, Inc. and The Bank of New York Mellon Trust Company, N.A., as Collateral Agent, dated March 14, 2024 to the Pledge Agreement between IPALCO Enterprises, Inc. and The Bank of New York Mellon Trust Company dated November 14, 2001, as amended and supplemented
  Exhibit 4.3
  Registration Rights Agreement, dated March 14, 2024, among IPALCO Enterprises, Inc. and J.P. Morgan Securities LLC, PNC Capital Markets LLC and U.S. Bancorp Investments, Inc., as representatives of the initial purchasers of the Notes
  Exhibit 4.4
  Seventy-Second Supplemental Indenture between AES Indiana and The Bank of New York Mellon Trust Company, N.A., as Trustee, dated March 1, 2024, for the 5.700% First Mortgage Bonds due 2054 (including the form of Bond attached as an exhibit thereto)
  Exhibit 104
  The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.
  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.
  IPALCO Enterprises, Inc.
  Date:  March 18, 2024
  By:
  /s/ Brian Hylander
  Name:
  Brian Hylander
  Title:
  Vice President, General Counsel and Secretary