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| 0001628280-23-005376.txt | 2023-02-28 08:37:32 | |
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| exhibit1018-mersanaatsacol.htm | 634303 | 2023-02-28 08:37:32 |
| exhibit1021-secondamendmen.htm | 36537 | 2023-02-28 08:37:32 |
| exhibit1022-thirdamendment.htm | 63661 | 2023-02-28 08:37:32 |
| exhibit1040mersana-espp201.htm | 72077 | 2023-02-28 08:37:32 |
| exhibit1042-amendedandrest.htm | 46362 | 2023-02-28 08:37:32 |
| exhibit21110kfy2022q4.htm | 3532 | 2023-02-28 08:37:32 |
| exhibit23110kfy2022q4.htm | 6754 | 2023-02-28 08:37:32 |
| exhibit31110kfy2022q4.htm | 10175 | 2023-02-28 08:37:32 |
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| exhibit43-descriptionofreg.htm | 22676 | 2023-02-28 08:37:32 |
| exhibit97-clawbackpolicy.htm | 8773 | 2023-02-28 08:37:32 |
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| Financial_Report.xlsx | 133158 | 2023-02-28 08:37:32 |
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| mrsn-20221231.htm | 2382768 | 2023-02-28 08:37:32 |
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| report.css | 2768 | 2023-02-28 08:37:32 |
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