X0609 4 2026-06-05 0002109150 INNIO N.V. INIO 0002136721 AI Alpine (Luxembourg) S.a.r.l. true 2-4 RUE BECK LUXEMBOURG N4 L-1222 LUXEMBOURG true 0002138248 AI Alpine Parent & Cy S.C.A. true 2-4 RUE BECK LUXEMBOURG N4 L-1222 LUXEMBOURG true 0001034196 ADVENT INTERNATIONAL, L.P. false PRUDENTIAL TOWER 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001984045 ADVENT INTERNATIONAL GP, LLC false PRUDENTIAL TOWER 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001362558 Abu Dhabi Investment Authority true 211 CORNICHE STREET PO BOX 3600 ABU DHABI C0 0000 UNITED ARAB EMIRATES true false Common Shares 2026-06-05 4 S 0 103500000 25.99 D 646500000 D The reported securities are directly held by AI Alpine (Luxembourg) S.a r.l. (the "Shareholder"), which is indirectly controlled by AI Alpine Parent & Cy S.C.A. ("AI Alpine Parent"). Various funds and accounts affiliated with Advent International, L.P. and its general partner, Advent International GP, LLC (together with Advent International, L.P., "Advent"), indirectly hold 53.8% of the equity of AI Alpine Parent and, accordingly, Advent exercises voting and investment control of the securities directly held by the Shareholder. The board of Advent International GP, LLC appoints the investment committee of Advent International, L.P. (the "Investment Committee"), which Investment Committee has voting and investment power with respect to the securities directly held by the Shareholder. Abu Dhabi Investment Authority ("ADIA") indirectly holds approximately 45.0% of the equity of AI Alpine Parent through Luxinva S.A., a wholly owned subsidiary of ADIA. Due to the terms of its relationship with AI Alpine Parent and such indirect holdings, ADIA may, for the purposes of and pursuant to the rules and regulations of the SEC, also be deemed to have beneficial ownership of the securities directly held by the Shareholder. ADIA is a public institution established by the Government of the Emirate of Abu Dhabi. Each Reporting Person and each other person referenced in this Statement disclaims Section 16 beneficial ownership of the reported securities except to the extent of their respective pecuniary interest therein, if any, and this Statement shall not be deemed an admission of beneficial ownership of any of the reported shares for purposes of Section 16 or any other purpose. The board of directors of the Issuer (the "Board") currently includes members affiliated with certain of the Reporting Persons that were appointed or elected to the Board pursuant to the Relationship Agreement, dated June 4, 2026, between the Issuer and the Shareholder. As a result, the Reporting Persons may be deemed directors by deputization for purposes of Section 16 of the Exchange Act. AI ALPINE (LUXEMBOURG) S.A R.L., By: /s/ Jean-Francois Jochum, Name: Jean-Francois Jochum, Title: Authorized Signatory, By: /s/ Yves Kuhn, Name: Yves Kuhn, Title: Authorized Signatory 2026-06-05 AI ALPINE PARENT & CY S.C.A., By: AI Alpine GP S.a r.l., its General Partner, By: /s/ Jean-Francois Jochum, Name: Jean-Francois Jochum, Title: Manager, By: /s/ Kremena Popova, Name: Kremena Popova, Title: Manager 2026-06-05 ADVENT INTERNATIONAL, L.P., By: Advent International GP, LLC, its General Partner, By: /s/ Neil Crawford, Name: Neil Crawford, Title: Vice President of Finance 2026-06-05 ADVENT INTERNATIONAL GP, LLC, By: /s/ Neil Crawford, Name: Neil Crawford, Title: Vice President of Finance 2026-06-05 ABU DHABI INVESTMENT AUTHORITY, By: /s/ Ahmed AlNeyadi, Name: Ahmed AlNeyadi, Title: Authorized Signatory, By: /s/ Saif Surour AlMashghouni, Name: Saif Surour AlMashghouni, Title: Authorized Signatory 2026-06-05