Information pursuant to Implementing Regulation (EU) 2018/1212 for the notification pursuant to § 125 German Stock Corporation Act (AktG) (TOP%200.2%20Information%20in%20accordance %20oHV26%20Version REPL)

Information pursuant to Sec. 125 (1) German Stock Corporation Act (AktG) in conjunction with Section 125 (5) AktG, Art. 4 (2), Table 3 of the Annex to Implementing Regulation (EU) 2018/1212

1. Specification of the notification

   1. Unique identifier of the event: AIXA130501GM

   2. Type of notification: REPL

   Invitation to the Annual General Meeting

2. Specification on the issuer

   1. ISIN: DE000A0WMPJ6

   2. Name of the issuer: AIXTRON SE

3. Specification of the meeting

   1. Date of the General Meeting: 20260513

      May 13, 2026

   2. Time of the General Meeting: 8:00

      10:00 a.m. CEST (corresponds to 8:00 UTC)

   3. Type of General Meeting: GMET

      Annual General Meeting with physical presence of shareholders or their proxies

   4. Location of the General Meeting: Parkhotel Quellenhof Aachen, Monheimsallee 52, 52062 Aachen

   5. Record Date: 20260506

      The applicable Record Date:

      May 6, 2026, 12:00 midnight CEST (corresponds to 22:00 UTC)

   6. Uniform Resource Locator (URL): www.aixtron.com/agm

   
   
   
4. Participation in the general meeting - Voting by correspondence

1. Method of participation by shareholder: EV

   Voting by correspondence

2. Issuer deadline for the notification of

   participation: 20260506; 22:00

   Registration for the Annual General Meeting by May 06, 2026, 12:00 midnight

   3.	Issuer deadline for voting:	20260512; 16:00
   		For voting by correspondence vote by mail or email or via the Event Portal by May 12, 2026, 18:00 midnight CEST (corresponds to 16:00 UTC)

   1. Participation in the general meeting - Participation through proxy
      1. Method of participation by shareholder: PX

         1. Power of attorney and instructions to the proxy holders nominated by the Company;

         2. Power of attorney to third parties;

         3. Power of attorney to an intermediary, a shareholders' association, a proxy adviserperson who offers himself in a businesslike manner to shareholders for the exercise on voting rights at the Annual General Meeting

      2. Issuer deadline for the notification of

         participation: 20260506; 22:00

         Registration for the Annual General Meeting by May 06, 2026, 12:00 midnight CEST

      3. Issuer deadline for voting: 20260513; 22:00

         
         
         

         1. / II. / III.: For granting of proxy by mail or email by May 12, 2026, 18:00 CEST (corresponds to 16:00 UTC)

      20260513; 22:00

      1. / II.: For granting of proxy via the Event Portal by May 12, 2026, 18:00 CEST (corresponds to 16:00 UTC)

      20260513

      1. / II.: For granting of proxy during the Annual General Meeting until the point in time as determined by the chairman of the meeting

      1. Participation in the general meeting - Participation by attending in person
         1. Method of participation by shareholder: PH

            Personal attendance

         2. Issuer deadline for the notification

            of participation: 20260506; 22:00

            Registration for the Annual General Meeting by May 06, 2026, 12:00 midnight CEST

         3. Issuer deadline for voting: 20260513

         During the Annual General Meeting until the point in time as determined by the chairman of the meeting

      2. Agenda - Agenda item 1

      1. Unique identifier of the agenda item: 1

      2. Title of the agenda item: Presentation of the adopted annual financial statements of

         AIXTRON SE as of December 31, 2025, the approved consolidated financial statements as of December 31, 2025, and the combined management report for AIXTRON SE and the Group for the fiscal year 2025, the report of the Supervisory Board, the proposal of the Executive Board for the appropriation of retained earnings, and the explanatory report of the Executive Board on the disclosures pursuant to Sections 289a and 315a of the German Commercial Code

         
         
         

      3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

      4. Vote: None

      5. Alternative voting options: None

      E. Agenda - Agenda item 2

      1. Unique identifier of the agenda item: 2

      2. Title of the agenda item: Resolution on the appropriation of net retained profits

         (Bilanzgewinn) for the 2025 financial year

      3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

      4. Vote: BV

         Binding vote

      5. Alternative voting options: VF, VA, AB

      In favor, vote against, abstention

      E. Agenda - Agenda item 3

      1. Unique identifier of the agenda item: 3

      2. Title of the agenda item: Resolution on the discharge of the members of the

         Excecutive Board of AIXTRON SE for the 2025 financial year

      3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

      4. Vote: BV

      5. Alternative voting options: VF, VA, AB

      In favor, vote against, abstention

      E. Agenda - Agenda item 4

      1. Unique identifier of the agenda item: 4

      2. Title of the agenda item: Resolution on the discharge of the members of the

         Supervisory Board of AIXTRON SE for the 2025 financial year

      3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

      5.	Vote:	BV
      		Binding nature
      5.	Alternative voting options:	VF, VA, AB
      		In favor, vote against, abstention

      
      
      E. Agenda - Agenda item 5

      1. Unique identifier of the agenda item: 5

      2. Title of the agenda item: Resolution on the approval of the remuneration report for the

         2025 financial year, prepared and audited in accordance with Section 162 AktGl year

      3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

      4. Vote: AV

         Advisory vote

      5. Alternative voting options: VF, VA, AB

      In favor, vote against, abstention

   2. Agenda - Agenda item 6.1

1. Unique identifier of the agenda item: 6.1

2. Title of the agenda item: Resolution on the election of the auditor and the group auditor, as

   well as the auditor of the integrated sustainability reporting for the 2026 financial year: KPMG AG Wirtschaftsprüfungsgesellschaft, Alfredstrahe 277, Essen, Germany, is elected as auditor and group auditor for the 2026 financial year.

3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

4. Vote: BV

   Binding vote

5. Alternative voting options: VF,VA, AB

In favor, vote against, abstention

1. Unique identifier of the agenda item: 6.2

   
   
   

2. Title of the agenda item: Resolution on the election of the auditor and the group auditor, as

   well as the audi−tor of the integrated sustainability reporting for the 2026 financial year: KPMG AG Wirtschaftsprüfungsgesellschaft, Alfredstrahe 277, Essen, Germany, is elected as auditor of the integrated sustainability reporting for the 2026 financial year.

3. Uniform Resource Locator (URL) of the : www.aixtron.com/agm

4. Vote: BV

   Binding vote

5. Alternative voting options: VF,VA, AB

   In favor, vote against, abstention

   1. Agenda - Agenda item 7

      1. Unique identifier of the agenda item: 7

      2. Title of the agenda item: Resolution on the revocation of the existing authorization and the

         granting of a new authorization to acquire treasury shares, including the exclusion of a right to tender (Andienungsrecht), and to use them, including the exclusion of subscription rights (Bezugsrechte), as well as authorization to cancel (einziehen) acquired treasury shares and reduce capital

      3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

      4. Vote: BV

         Binding vote

      5. Alternative voting options: VF,VA, AB

         In favor, vote against, abstention

         1. Agenda - Agenda item 8

            1. Unique identifier of the agenda item: 8

            2. Title of the agenda item: Resolution on the revocation of the existing Authorized Capital

               2022 and the crea−tion of new Authorized Capital 2026 with the authorization to exclude subscription rights (Bezugsrechte), as well as the corresponding amendment to the Articles of Association

            3. Uniform Resource Locator (URL) of the materials: www.aixtron.com/agm

               
               
               

            4. Vote: BV

               Binding vote

            5. Alternative voting options: VF,VA, AB

            In favor, vote against, abstention

            1. Specification of the deadlines regarding the exercise of other shareholder rights - Amendment of Agenda

               1. Object of deadline: Request for amendments to the agenda

               2. Applicable issuer deadline: 20260427; 22:00

                  By April 27, 2026, 12:00 midnight CEST (corresponds to 22:00 UTC)

            2. Specification of the deadlines regarding the exercise of other shareholder rights -
            Countermotion

            1. Subject of deadline: Transmission of countermotions to a specific item on the agenda

            2. Applicable issuer deadline: 20260412; 22:00

            By April 12, 2026, 12:00 midnight CEST (corresponds to 22:00 UTC)

         2. Specification of the deadlines regarding the exercise of other shareholder rights - Election
      proposal

      1. Subject of deadline: Transmission of election proposals

      2. Applicable issuer deadline: 20260428; 22:00

      By April 28, 2026, 12:00 midnight CEST (corresponds to 22:00 UTC)

      F. Specification of the deadlines regarding the exercise of other shareholder rights - Right to information pursuant to Section 131 (1) German Stock Corporation Act (AktG)

      1. Subject of deadline: Right to information pursuant to Section 131 (1) German Stock Corporation Act (AktG)

      2. Applicable issuer deadline: 20260428

      
      
      

      On April 28, 2026, still during the Annual General Meeting until the point in time as determined by the chairman of the meeting

      F. Specification of the deadlines regarding the exercise of other shareholder rights - Filing of objections

      1. Subject of deadline: Filing of objections against resolutions of the Annual General Meeting

      2. Applicable issuer deadline: 20260513

      On May 13, 2026, still during the Annual General Meeting until the point in time as determined by the chairman of the meeting

   2. Specification of the deadlines regarding the exercise of other shareholder rights - Request for

1. Subject of deadline: Making a request for confirmation of the counting of votes

2. Applicable issuer deadline: 20260615; 22:00

By June 15, 2026, 12:00 midnight CEST (corresponds to 22:00 UTC)

This document is a convenience translation of the German original. In case of discrepancy between the English and German versions, the German version shall prevail.