COVER |
6 Months Ended |
|---|---|
Jun. 30, 2026 | |
| Cover [Abstract] | |
| Document Type | 6-K |
| Entity Registrant Name | Legend Biotech Corporation |
| Entity Central Index Key | 0001801198 |
| Document Period End Date | Jun. 30, 2026 |
| Document Fiscal Year Focus | 2026 |
| Document Fiscal Period Focus | Q2 |
| Current Fiscal Year End Date | --12-31 |
| Amendment Flag | false |
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