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Share-Based Payments (Tables) | 12 Months Ended
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Dec. 31, 2023
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Summary of Expense Recognized for Employee Services Received | During the years ended December 31, 2023, 2022, and 2021, our share-based payment arrangements led to the following expenses:
|  |  | Years ended December 31,
(in millions €) | Note |  |  | 2023 | 2022 | 2021 |
Expense arising from equity-settled share-based payment arrangements |  |  |  | 44.1 | 46.5 | 61.0 |
Employee Stock Ownership Plan | 16.5 |  |  | — | 13.8 | 20.2 |
Chief Executive Officer Grant | 16.4 |  |  | 1.2 | 3.1 | 5.9 |
Management Board Grant(1) | 16.3 |  |  | 3.2 | 4.3 | 2.4 |
BioNTech 2020 Employee Equity Plan for Employees Based Outside North America | 16.1 |  |  | 36.3 | 25.3 | 32.5 |
InstaDeep Employee Incentive Plan(2) |  |  |  | 3.4 | — | — |
Expense / (Income) arising from cash-settled share-based payment arrangements |  |  |  | 7.3 | 61.5 | 32.7 |
Employee Stock Ownership Plan | 16.5 |  |  | (0.9) | 53.4 | 6.3 |
Management Board Grant(1) | 16.2, 16.3 |  |  | (2.4) | — | 3.6 |
BioNTech Restricted Stock Unit Plan for North America Employees | 16.1 |  |  | 10.6 | 8.1 | 22.8 |
Total |  |  |  | 51.4 | 108.0 | 93.7 |
Cost of sales |  |  |  | 6.5 | 3.0 | 7.0 |
Research and development expenses |  |  |  | 33.4 | 84.6 | 60.5 |
Sales and marketing expenses |  |  |  | 1.0 | 0.8 | 0.5 |
General and administrative expenses |  |  |  | 10.5 | 19.6 | 25.7 |
Total |  |  |  | 51.4 | 108.0 | 93.7 |
(1) In May 2021 and 2022, phantom options were granted under the Management Board Grant for the years 2021 and 2022 which led to a modification from an equity-settled to cash-settled share-based payment arrangement and a reclassification of €1.1 million and €3.3 million between equity and non-current other liabilities, respectively. Expenses incurred before and after the modification dates have been disclosed as equity-settled or cash-settled share-based payment arrangement, respectively. The amount includes expenses incurred with respect to a one-time signing bonus granted to Jens Holstein as of his appointment to the Management Board (see Note 21.2). (2) As part of the acquisition of InstaDeep (see Note 5), it was agreed to issue long-term equity awards with a total target incentive value of £15.0 million, each for options and RSUs. The allocation shall be made in a manner consistent with BioNTech's existing share-based payment arrangements. The arrangement was communicated to the employees as part of the acquisition but relates to future services. Following the rules of IFRS 2, starting with the service commencement date during the year ended December 31, 2023 and in advance of the grant date, expenses were recorded based on the estimated grant date fair values and numbers of equity instruments.
Employee Equity Plan |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Summary of Number and Share Price of Restricted Stock Units | Reconciliation of Outstanding Share-Options
|  | LTI-plus program | LTI 2020 program | LTI 2021 program | LTI 2022 program
As of January 1, 2022 |  | 372,011 | 242,416 | 110,036 |  | — |
Forfeited / Modified |  | (7,932) | (7,111) | (5,428) |  | — |
Granted / Allocated |  | — | — | — |  | 396,110 |
Settled(1) |  | (364,079) | — | — |  | — |
As of December 31, 2022 |  | — | 235,305 | 104,608 |  | 396,110 |
As of January 1, 2023 |  | — | 235,305 | 104,608 |  | 396,110 |
Forfeited / Modified |  | — | (4,400) | (3,497) |  | (16,141) |
As of December 31, 2023 |  | — | 230,905 | 101,111 |  | 379,969 |
thereof vested |  | — | 175,523 | 51,905 |  | 96,466 |
thereof unvested |  | — | 55,382 | 49,206 |  | 283,503 |
(1) The closing price of an American Depositary Share of BioNTech on Nasdaq on December 15, 2022, the settlement date, converted from USD to Euro using the exchange rate published by the German Central Bank (Deutsche Bundesbank) on the same day was €171.40.
Summary of Inputs Used in Measurement of Fair Value at Grant Date |
|  | LTI-plus program | LTI 2020 program | LTI 2021 program | LTI 2022 program
Weighted average fair value |  | 87.60 |  | 92.21 |  | 203.22 |  | 165.03 |
Waiting period (in years) |  | 2.0 | 4.0 | 4.0 | 4.0
Management Board Grant |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Summary of Inputs Used in Measurement of Fair Value at Grant Date | The parameters used for measuring the fair values as of the respective (estimated) allocation dates were as follows:
|  | Allocation date February 2020 | Allocation date May 12, 2021(1) | Allocation date May 17, 2021(1) | Allocation date May 2022(1)
Weighted average fair value |  | €10.83 | €29.05 | €27.64 | €38.88
Weighted average share price |  | €28.20 | €168.44 | €179.46 | €147.84
Exercise price(2) |  | €28.32 | €167.63 | €169.08 | €137.65
Expected volatility |  | 36.6 | % | 49.7 | % | 49.7 | % | 49.7 | %
Expected life (years) |  | 4.8 | 4.6 | 4.6 | 5.8
Risk-free interest rate |  | 1.6 | % | 3.9 | % | 3.9 | % | 3.9 | %
(1) Classified as cash-settled share-based payment arrangement; all other share-based payment arrangements are classified as equity-settled. (2) The share options allocated as of February 2020 and May 2023 as well as the phantom share options allocated as of May 2021 and 2022 are subject to an effective exercise price cap.
| Allocation date May 2023 | Estimated allocation date 2024 | Estimated allocation date 2025 | Estimated allocation date 2026
Weighted average fair value(1) | €46.29 | €43.67 | €39.97 | €32.86
Weighted average share price(1) | €98.93 | €95.51 | €95.51 | €95.51
Exercise price(1) | €105.42 | €96.82 | €99.74 | €105.13
Expected volatility | 47.2 | % | 47.7 | % | 43.0 | % | 36.8 | %
Expected life (years)(1) | 5.8 | 5.8 | 5.8 | 5.8
Risk-free interest rate | 3.7 | % | 3.9 | % | 3.9 | % | 3.9 | %
(1) Valuation parameter for estimated allocation dates derived from the Monte-Carlo simulation model.
Summary of Number and Weighted-Average Exercise Price of Share Options | The (phantom) share options allocated and expected to be allocated to our Management Board as of December 31, 2023, are presented in the table below.
|  | Allocation date February 2020 | Allocation date May 12, 2021(1) | Allocation date May 17, 2021(1) | Allocation date May 2022(1)
(Phantom) share options outstanding |  | 248,096 | 45,279 | 6,463 | 86,118
thereof allocated and vested but subject to performance and waiting requirements |  | 186,072 | 22,640 | 3,232 | 21,531
thereof allocated and unvested |  | 62,024 | 22,639 | 3,231 | 64,587
Weighted average exercise price (€) |  | 28.32 | 167.63 | 169.08 | 137.65
(1) Classified as cash-settled share-based payment arrangement; all other share-based payment arrangements are classified as equity-settled.
|  | Allocation date May 2023(1) | Estimated allocation date 2024(1) | Estimated allocation date 2025(1) | Estimated allocation date 2026(1)
Share options outstanding / expected to be allocated |  | 130,586 | 164,148 | 118,312 | 93,561
thereof allocated and unvested |  | 130,586 | — | — | —
Weighted average exercise price (€) |  | 105.42 | 96.82 | 99.74 | 105.13
(1) Valuation parameter derived from the Monte-Carlo simulation model.
Chief Executive Officer Grant |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Summary of Inputs Used in Measurement of Fair Value at Grant Date | The inputs used in the measurement of the fair value at the grant date of the Chief Executive Officer Grant were as follows:
|  | Grant date October 9, 2019
Weighted average fair value |  | €5.63
Weighted average share price |  | €13.60
Exercise price |  | €13.60
Expected volatility |  | 41.4 | %
Expected life (years) |  | 5.4
Risk-free interest rate |  | 1.5 | %
Employee Stock Ownership Plan |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Summary of Inputs Used in Measurement of Fair Value at Grant Date | The inputs used in the measurement of the fair values at the grant date of the ESOP were as follows:
|  | Grant date November 15, 2018 | Grant dates between February 21 and April 3, 2019 | Grant dates between April 29 and May 31, 2019 | Grant date December 1, 2019
Weighted average fair value |  | €7.41 | €6.93 | €7.04 | €9.49
Weighted average share price |  | €14.40 | €15.72 | €16.03 | €19.84
Exercise price(1) |  | €10.14 | €15.03 | €15.39 | €15.82
Expected volatility |  | 46.0 | % | 46.0 | % | 46.0 | % | 46.0 | %
Expected life (years) |  | 5.8 | 6.0 | 6.0 | 5.5
Risk-free interest rate |  | 0.1 | % | 0.1 | % | 0.1 | % | 0.1 | %
(1) With respect to the Management Board members appointed as such at the time the options were granted, the options are subject to the effective exercise price cap as well as the maximum cap mechanism.
Summary of Number and Weighted-Average Exercise Price of Share Options | Set out below is an overview of changes to share options outstanding and number of ordinary shares underlying these options that occurred during the periods indicated:
|  | Share options outstanding | Number of ordinary shares underlying options | Weighted average exercise price (€)(1)
As of January 1, 2022 |  | 642,007 | 11,556,124 | 10.23
Modified(2) |  | (1,040) | (18,720) | 10.14
Exercised(3) |  | (583,383) | (10,500,890) | 10.14
As of December 31, 2022 |  | 57,584 | 1,036,514 | 11.10
As of January 1, 2023 |  | 57,584 | 1,036,514 | 11.10
Exercised(3) |  | (39,785) | (716,121) | 11.04
As of December 31, 2023 |  | 17,799 | 320,393 | 11.24
thereof vested |  | 17,799 | 320,393 | 11.24
thereof unvested |  | — | — | —
(1) With respect to the Management Board members appointed as such at the time the options were granted, the options are subject to the effective exercise price cap as well as the maximum cap mechanism. (2) Rights have been modified to cash-settled rights, all other terms remained unchanged. (3) The average closing price of an American Depositary Share of BioNTech on Nasdaq weighted over the various dates immediately preceding the settlement dates, converted from USD to Euro using the exchange rate published by the German Central Bank (Deutsche Bundesbank) on the same days was €96.49 and €160.44 for all settlements during the years ended December 31, 2023 and 2022, respectively.

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