Parent Directory| Name | Size | Last Modified |
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| 0001104659-22-096250-index.html | 2022-08-31 06:40:28 | |
| 0001104659-22-096250.txt | 2022-08-31 06:40:28 | |
 0001104659-22-096250-xbrl.zip | 16308 | 2022-08-31 06:40:28 |
| FilingSummary.xml | 1650 | 2022-08-31 06:40:28 |
| Financial_Report.xlsx | 5662 | 2022-08-31 06:40:28 |
| imgn-20220831.xsd | 3036 | 2022-08-31 06:40:28 |
| imgn-20220831_lab.xml | 34476 | 2022-08-31 06:40:28 |
| imgn-20220831_pre.xml | 22597 | 2022-08-31 06:40:28 |
| MetaLinks.json | 38060 | 2022-08-31 06:40:28 |
| R1.htm | 38062 | 2022-08-31 06:40:28 |
| report.css | 2767 | 2022-08-31 06:40:28 |
| Show.js | 1085 | 2022-08-31 06:40:28 |
| tm2224733d1_8k.htm | 25083 | 2022-08-31 06:40:28 |
| tm2224733d1_8k_htm.xml | 3464 | 2022-08-31 06:40:28 |
| tm2224733d1_ex99-1.htm | 20925 | 2022-08-31 06:40:28 |
 tm2224733d1_ex99-1img001.jpg | 11564 | 2022-08-31 06:40:28 |