Form SCHEDULE 13D/A CureVac N.V. Filed by: KfW

Reference is made to that certain (i) Purchase Agreement by and between BioNTech SE, a European stock corporation (the "Buyer") and the Issuer dated June 12, 2025 (the "'Purchase Agreement") and the exchange offer described therein (the "Exchange Offer") and (ii) termination agreement of the Shareholders' Agreement dated October 29, 2025 by and among, KfW, dievini, Zweite DH Verwaltungs GmbH, 4H invest GmbH, Bohlini Invest GmbH, MH-LT Investments GmbH and certain other parties (the "Termination Agreement"). KfW has tendered all of its Common Shares into the Exchange Offer pursuant to that certain Tender and Support Agreement dated July 31, 2025 by and between KfW and the Buyer (the "Tender and Support Agreement"), with respect to the Common Shares held by KfW. The Exchange Offer expired as scheduled at 9:00 a.m. Eastern Time on December 3, 2025. The Common Shares held by KfW were accepted for exchange and transferred to the Buyer in a capital increase for the issue of shares in Buyer underlying the American Depository Shares of Buyer offered as consideration of the Exchange Offer which took effect upon registration on December 10, 2025. As a result, KfW no longer beneficially owns, or otherwise holds, any securities of the Issuer. KfW expects to receive full consideration to which it is entitled under the Exchange Offer (the "Completion") on or about December 15, 2025. Pursuant to the Termination Agreement, the Shareholders' Agreement will terminate upon the Completion. The foregoing descriptions of the Purchase Agreement and the Tender and Support Agreement, and the respective transactions contemplated thereby, do not purport to be complete and are qualified in their entirety by reference to such agreements. A copy of the Purchase Agreement, listed as Exhibit 1 hereto, is incorporated by reference to Exhibit 99.1 to the Issuer's Current Report on Form 6-K filed with the SEC on June 16, 2025. A copy of the form of Tender and Support Agreement, listed as Exhibit 2 hereto, is incorporated by reference to Exhibit 2 to KfW's Amendment 6 to Schedule 13D filed with the SEC on August 1, 2025.

Exhibit No. Description 1 Purchase Agreement (Incorporated by reference to Exhibit 99.1 to the Form 6-K filed by the Issuer with the SEC on June 16, 2025.) 2 Tender and Support Agreement (Incorporated by reference to Exhibit 2 to the Amendment 6 to Schedule 13D filed by KfW with the SEC on August 1, 2025.) 3 Shareholders' Agreement dated as of June 16, 2020 by and among KfW, dievini Hopp BioTech holding GmbH & Co. KG and Dietmar Hopp. (Incorporated herein by reference from Exhibit 5 of the Statement of Beneficial Ownership on Schedule 13D (No. 005-91630) filed by KfW on August 24, 2020.) 4 Investment and Shareholders' Agreement dated as of July 17, 2020, by and among CureVac AG and several shareholders. (Incorporated herein by reference from Exhibit 3.5 of CureVac N.V.'s prospectus on Form F-1 of CureVac N.V. (No. 333-240076) filed with the SEC on August 10, 2020.) 5 Supplement to the Shareholders' Agreement (Exhibit No. 1) dated as of August 14, 2020, by and among KfW, dievini Hopp BioTech holding GmbH & Co. KG, Dietmar Hopp and DH-LT Investments GmbH. (Incorporated herein by reference from Exhibit 5 of the Statement of Beneficial Ownership on Schedule 13D (No. 005-91630) filed by KfW on August 24, 2020.) 6 Second Supplement to the Shareholders' Agreement (Exhibit No. 2) dated as of January 13, 2022 by and among KfW, dievini Hopp BioTech holding GmbH & Co. KG, Dietmar Hopp and DH-LT Investments GmbH. (Incorporated herein by reference from Exhibit 6 of the Statement of Beneficial Ownership on Schedule 13D (Amendment No. 3) filed by KfW on January 13, 2022.)