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Other Disclosures - Company Overview (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Genmab B.V. |  |
Company Overview |  |
Ownership and votes (Percentage) | 100.00% | 100.00%
Genmab Holding B.V. |  |
Company Overview |  |
Ownership and votes (Percentage) | 100.00% | 100.00%
Genmab US, Inc. |  |
Company Overview |  |
Ownership and votes (Percentage) | 100.00% | 100.00%
Genmab K.K. |  |
Company Overview |  |
Ownership and votes (Percentage) | 100.00% | 100.00%

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