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Share-based payments (Tables) | 6 Months Ended
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Jun. 30, 2022
Statements [Line Items] |
Summary of Employee Related Share Based Compensation Expense | The Group recognized total employee-related share-based compensation expense, during the three and six months ended June 30, 2022 and 2021 as set out below:
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
|  | (Euros in thousands) |  |  | (Euros in thousands) |
Research and development expenses |  |  | 3,107 |  |  |  | 4,676 |  |  |  | 6,375 |  |  |  | 9,574 |
General and administrative expenses |  |  | 2,453 |  |  |  | 3,289 |  |  |  | 4,887 |  |  |  | 6,695 |
Total share-based compensation |  |  | 5,560 |  |  |  | 7,965 |  |  |  | 11,262 |  |  |  | 16,269 |
Matching Stock Options [Member] |
Statements [Line Items] |
Summary of Employee Share Options | Matching Stock Options outstanding as of June 30, 2022:
|  | 2022 |
|  | Weighted average exercise price in USD |  |  | Number |
Matching Stock Options outstanding on January 1, |  |  | 10.00 |  |  |  | 1,406,468 |
Matching Stock Options forfeited |  |  | — |  |  |  | — |
Matching Stock Options exercised |  |  | — |  |  |  | — |
Matching Stock Options expired |  |  | 10.00 |  |  |  | 1,638 |
Matching Stock Options outstanding on June 30, |  |  | 10.00 |  |  |  | 1,404,830 |
Matching Stock Options exercisable on June 30, |  |  | 10.00 |  |  |  | 1,404,830 |
Weighted average remaining contract life (years) |  |  | 8.01 |  |  |  |  |
Converted Options [Member] |
Statements [Line Items] |
Summary of Employee Share Options | Converted Options outstanding as of June 30, 2022:
|  | 2022 |
|  | Weighted average exercise price in USD |  |  | Number |
Converted Options outstanding on January 1, |  |  | 2.64 |  |  |  | 566,311 |
Converted Options forfeited |  |  | 1.35 |  |  |  | 7,738 |
Converted Options exercised |  |  | 1.43 |  |  |  | 1,222 |
Converted Options expired |  |  | 1.34 |  |  |  | 227 |
Converted Options outstanding on June 30, |  |  | 2.66 |  |  |  | 557,124 |
Converted Options exercisable on June 30, |  |  | 2.64 |  |  |  | 328,859 |
Weighted average remaining contract life (years) |  |  | 5.51 |  |  |  |  |
Additional Grants Under 2020 Plan [Member] |
Statements [Line Items] |
Summary of Options Granted Priced Using Black Scholes for SARs, Tandem Awards, Converted Options, Matching Stock Options and Monte Carlo Option Pricing Model | Immatics applied a Black Scholes pricing model to estimate the fair value of the Service Options
|  | As of March 22, 2022 |  |  | As of March 29, 2022 |  |  | As of June 14, 2022 |  |  | As of June 30, 2022 |
Exercise price in USD |  | $ | 7.40 |  |  | $ | 8.15 |  |  | $ | 7.94 |  |  | $ | 8.71 |
Underlying share price in USD |  | $ | 7.40 |  |  | $ | 8.15 |  |  | $ | 7.94 |  |  | $ | 8.71 |
Volatility |  |  | 81.75 | % |  |  | 81.58 | % |  |  | 82.57 | % |  |  | 82.17 | %
Time period (years) |  |  | 6.11 |  |  |  | 6.11 |  |  |  | 5.58 |  |  |  | 6.08 |
Risk free rate |  |  | 2.39 | % |  |  | 2.48 | % |  |  | 3.57 | % |  |  | 3.00 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | % |  |  | 0.00 | % |  |  | 0.00 | %
Summary of Employee Share Options | Service Options outstanding as of June 30, 2022:
|  | 2022 |
|  | Weighted average exercise price in USD |  |  | Number |
Service Options outstanding on January 1, |  |  | 10.57 |  |  |  | 3,725,619 |
Service Options granted in March, |  |  | 7.94 |  |  |  | 104,963 |
Service Options granted in June, |  |  | 8.25 |  |  |  | 523,945 |
Service Options forfeited |  |  | 10.62 |  |  |  | 51,582 |
Service Options exercised |  |  | — |  |  |  | — |
Service Options expired |  |  | 9.97 |  |  |  | 1,189 |
Service Options outstanding on June 30, |  |  | 10.22 |  |  |  | 4,301,756 |
Service Options exercisable on June 30, |  |  | 9.97 |  |  |  | 802,615 |
Weighted average remaining contract life (years) |  |  | 9.15 |  |  |  |  |
Performance Based Options [Member] |
Statements [Line Items] |
Summary of Employee Share Options | PSUs outstanding as of June 30, 2022:
|  | 2022 |
|  | Weighted average exercise price in USD |  |  | Number |
PSUs outstanding on January 1, |  |  | 10.08 |  |  |  | 3,696,000 |
PSUs granted |  |  | — |  |  |  | — |
PSUs forfeited |  |  | — |  |  |  | — |
PSUs outstanding on June 30, |  |  | 10.08 |  |  |  | 3,696,000 |
PSUs exercisable on June 30, |  |  | — |  |  |  | — |
Weighted average remaining contract life (years) |  |  | 8.49 |  |  |  |  |

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- Definition The disclosure of information about indirect, by reference to the fair value of the equity instruments granted, measurement of the fair value of goods or services received as consideration for the entity's share options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 47 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_47_a&doctype=Standard -URIDate 2021-03-24 + Details
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