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Related party disclosures (Tables) | 12 Months Ended
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Dec. 31, 2020
Text Block [Abstract] |
Summary of Compensation of Key Management Personnel | Compensation of key management personnel:
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (Euros in thousands) |
Fixed |  |  | 2,660 |  |  |  | 1,202 |  |  |  | 1,088 |
Variable |  |  | 886 |  |  |  | 521 |  |  |  | 433 |
Share-based compensation expense |  |  | 13,841 |  |  |  | 697 |  |  |  | 119 |
Total key management compensation |  |  | 17,387 |  |  |  | 2,420 |  |  |  | 1,640 |
Summary of Compensation for the Supervisory Board | Total compensation for the Supervisory Board amounted to €2.7 million in 2020:
(Euros in thousands) |  | Peter Chambré |  |  | Harald F. Stock |  |  | Michael G. Atieh |  |  | Paul Carter |  |  | Heather L. Mason |  |  | Adam Stone |  |  | Christoph Hettich |  |  | Eliot Forster |  |  | Total |
Supervisory board compensation |  |  | 140 |  |  |  | 16 |  |  |  | 28 |  |  |  | 26 |  |  |  | 20 |  |  |  | 20 |  |  |  | 20 |  |  |  | 12 |  |  |  | 282 |
Travel expenses |  |  | 4 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4 |
Payment Exit arrangement |  |  | 2,394 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,394 |
Share-based compensation expense |  |  | 1,046 |  |  |  | — |  |  |  | 70 |  |  |  | 70 |  |  |  | 70 |  |  |  | 70 |  |  |  | 70 |  |  |  | 40 |  |  |  | 1,436 |
Total cash compensation |  |  | 3,584 |  |  |  | 16 |  |  |  | 98 |  |  |  | 96 |  |  |  | 90 |  |  |  | 90 |  |  |  | 90 |  |  |  | 52 |  |  |  | 4,116 |
Total compensation for the Supervisory Board amounted to €0.4 million in 2019:
(Euros in thousands) |  | Peter Chambré |  |  | Harald F. Stock |  |  | Total |
Supervisory board fee |  |  | 300 |  |  |  | 9 |  |  |  | 309 |
Travel expenses |  |  | 87 |  |  |  | 20 |  |  |  | 107 |
Total |  |  | 387 |  |  |  | 29 |  |  |  | 416 |
Total compensation for the Supervisory Board amounted to €0.5 million in 2018:
(Euros in thousands) |  | Peter Chambré |  |  | Harald F. Stock |  |  | Total |
Supervisory board fee |  |  | 400 |  |  |  | 10 |  |  |  | 410 |
Travel expenses |  |  | 52 |  |  |  | 16 |  |  |  | 68 |
Total |  |  | 452 |  |  |  | 26 |  |  |  | 478 |
Summary of Options Granted to Managing Director and Supervisory Directors | The following options were granted to Immatics’ Managing Director and Supervisory Directors:
|  | Type of options |  | Grant date |  |  | Number of Options |  |  | Strike Price in USD |  |  | Expiration date
Managing Director |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Harpreet Singh |  | Performance-based options |  |  | June 30, 2020 |  |  |  | 1,598,000 |  |  |  | 10 |  |  | June 30, 2030
Harpreet Singh |  | Service options |  |  | June 30, 2020 |  |  |  | 168,000 |  |  |  | 10 |  |  | June 30, 2030
Harpreet Singh |  | Matching Stock options |  |  | June 30, 2020 |  |  |  | 264,624 |  |  |  | 10 |  |  | June 30, 2030
Harpreet Singh |  | Converted options |  |  | June 30, 2020 |  |  |  | 30,939 |  |  |  | 1.06 |  |  | July 1, 2027
Harpreet Singh |  | Converted options |  |  | June 30, 2020 |  |  |  | 145,371 |  |  |  | 1.17 |  |  | January 1, 2028
Harpreet Singh |  | Service options |  |  | December 17, 2020 |  |  |  | 168,000 |  |  |  | 9.70 |  |  | December 17, 2030
Supervisory Directors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Peter Chambré |  | Service options |  |  | June 30, 2020 |  |  |  | 25,000 |  |  |  | 10 |  |  | June 30, 2030
Peter Chambré |  | Matching Stock options |  |  | June 30, 2020 |  |  |  | 211,974 |  |  |  | 10 |  |  | June 30, 2030
Adam Stone |  | Service options |  |  | June 30, 2020 |  |  |  | 25,000 |  |  |  | 10 |  |  | June 30, 2030
Christoph Hettich |  | Service options |  |  | June 30, 2020 |  |  |  | 25,000 |  |  |  | 10 |  |  | June 30, 2030
Heather L. Mason |  | Service options |  |  | June 30, 2020 |  |  |  | 25,000 |  |  |  | 10 |  |  | June 30, 2030
Michael G. Atieh |  | Service options |  |  | June 30, 2020 |  |  |  | 25,000 |  |  |  | 10 |  |  | June 30, 2030
Paul Carter |  | Service options |  |  | June 30, 2020 |  |  |  | 25,000 |  |  |  | 10 |  |  | June 30, 2030
Eliot Forster |  | Service options |  |  | September 14, 2020 |  |  |  | 25,000 |  |  |  | 9.16 |  |  | September 13, 2030

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