MAINZ and TÜBINGEN, Germany – June 12, 2025

BioNTech SE (Nasdaq: BNTX, “BioNTech”) and CureVac N.V. (Nasdaq: CVAC, “CureVac”) today announced that they have entered into a definitive Purchase Agreement pursuant to which BioNTech intends to acquire all of the shares of CureVac, a clinical-stage biotech company developing a novel class of transformative medicines in oncology and infectious diseases based on messenger ribonucleic acid (“mRNA”). The all-stock transaction will bring together two highly complementary companies based in Germany and will build on BioNTech’s proven track record and established position in the global mRNA industry.

With the acquisition, BioNTech aims to strengthen the research, development, manufacturing, and commercialization of investigational mRNA-based cancer immunotherapy. The strategic transaction will complement BioNTech’s capabilities and proprietary technologies in mRNA design, delivery formulations, and mRNA manufacturing. For BioNTech, this transaction marks the next milestone in the execution of its oncology strategy which focuses on two pan-tumor programs, mRNA-based cancer immunotherapy candidates, and BNT327, a PD-L1xVEGF-A bispecific antibody candidate.

Under the terms of the Purchase Agreement, each CureVac share will be exchanged for approx. $5.46 in BioNTech ADSs, resulting in an implied aggregate equity value for CureVac of approx. $1.25 billion (subject to the adjustments described below). The consideration is subject to a collar mechanism, such that if the 10-day volume weighted average price of the BioNTech ADSs ending on the fifth business day prior to the closing of the offer (“VWAP”) exceeds $126.55, the exchange ratio would be 0.04318, and if the VWAP is lower than $84.37, the exchange ratio would be 0.06476. Upon closing of the transaction, CureVac shareholders are expected to own between 4% and 6% of BioNTech.

“This transaction is another building block in BioNTech’s oncology strategy and an investment in the future of cancer medicine,” said Prof. Ugur Sahin, M.D., CEO and Co-Founder of BioNTech. “We intend to bring together complementary capabilities and leverage technologies with the goal of advancing the development of innovative and transformative cancer treatments and establishing new standards of care for various types of cancer in the coming years.”

“To me, this transaction is more than a business decision, it represents a shared commitment to leverage the full potential of mRNA as a disruptive technology to develop transformative therapies with greater scale and speed,” said Dr. Alexander Zehnder, CEO of CureVac. “For more than two decades, both companies have operated with related ambitions, often tackling challenges from different angles. This transaction aims at combining complementary scientific capabilities, proprietary technologies, and manufacturing expertise in the mRNA field under one roof.”

BioNTech will start preparing an integration plan in alignment with BioNTech’s ongoing group-wide transformation. Following the closing of the transaction, CureVac’s operating subsidiary will become a wholly owned subsidiary of BioNTech. As part of this plan, BioNTech will integrate CureVac’s state-of-the-art research and manufacturing site in Tübingen.

BioNTech’s all-stock acquisition of CureVac is expected to create long-term value for shareholders of both companies, building on BioNTech’s proven track record in mRNA research, development, manufacturing, and commercialization, in particular the COVID-19 vaccine, which was developed in collaboration with Pfizer Inc. and marked the first approved mRNA product in the history of medicine. Based on BioNTech’s strong financial position with €15.9 billion in cash, cash equivalents and security investments as of March 31, 2025, its global presence, late-stage clinical pipeline, and sustained investment in mRNA research across a broad range of solid tumor types, the acquisition positions the company to accelerate and broaden the development of mRNA-based medicines for patients in need.

Following the closing of the exchange offer BioNTech and CureVac will effectuate a corporate reorganization of CureVac and its subsidiaries, resulting in BioNTech owning 100% of CureVac’s business and interests in CureVac and its subsidiaries. As part of this corporate reorganization, CureVac shareholders who do not tender their shares in the exchange offer will receive the same consideration received for each CureVac share tendered in the exchange offer (without interest and subject to applicable withholding taxes). An extraordinary general meeting of CureVac’s shareholders will be convened in connection with the exchange offer to adopt, among other things, certain resolutions relating to the transaction.

The transaction was unanimously approved by both BioNTech’s and CureVac’s management and supervisory boards. The transaction, which is expected to close in 2025, is subject to the satisfaction of customary closing conditions, including a minimum acceptance threshold of at least 80% of CureVac’s shares (which threshold may be reduced to 75% unilaterally by BioNTech under certain circumstances) and required regulatory approvals.

Certain shareholders of CureVac representing 36.76% of CureVac’s shares, including dievini Hopp BioTech holding GmbH & Co. KG and certain of its affiliates and all members of CureVac’s management and supervisory boards, have entered into tender and support agreements, pursuant to which they have agreed, among other things, and subject to the terms and conditions of such agreements, to tender their shares in the exchange offer and to vote in favor of the resolutions relating to the transaction at the CureVac extraordinary general meeting to be held in connection with the transaction. In addition, the German Federal government has confirmed to generally have a positive view of the transaction. BioNTech therefore assumes that Kreditanstalt für Wiederaufbau – which holds 13.32% of the shares in CureVac on behalf of the Federal Republic of Germany – will support the transaction by tendering its shares in CureVac. As a result, BioNTech expects to have contractual commitments to support the transaction from shareholders of CureVac representing a total of 50.08% of CureVac shares towards the 80% minimum condition required under the exchange offer.

Covington & Burling LLP, Hengeler Mueller Partnerschaft von Rechtsanwälten mbB and Loyens & Loeff N.V. served as legal counsel to BioNTech. Skadden, Arps, Slate, Meagher & Flom LLP and NautaDutilh N.V. served as legal counsel to CureVac. PJT Partners served as exclusive financial advisor to BioNTech. Goldman Sachs Bank Europe SE served as exclusive financial advisor to CureVac.