Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-21-082609-index-headers.html | 2021-06-17 16:13:17 | |
| 0001104659-21-082609-index.html | 2021-06-17 16:13:17 | |
| 0001104659-21-082609.txt | 2021-06-17 16:13:17 | |
 0001104659-21-082609-xbrl.zip | 37864 | 2021-06-17 16:13:17 |
| FilingSummary.xml | 1681 | 2021-06-17 16:13:17 |
| Financial_Report.xlsx | 5641 | 2021-06-17 16:13:17 |
| imgn-20210616.xsd | 3190 | 2021-06-17 16:13:17 |
| imgn-20210616_lab.xml | 34592 | 2021-06-17 16:13:17 |
| imgn-20210616_pre.xml | 22713 | 2021-06-17 16:13:17 |
| MetaLinks.json | 38702 | 2021-06-17 16:13:17 |
| R1.htm | 38582 | 2021-06-17 16:13:17 |
| report.css | 2767 | 2021-06-17 16:13:17 |
| Show.js | 1085 | 2021-06-17 16:13:17 |
| tm2119939d1_8k.htm | 44115 | 2021-06-17 16:13:17 |
| tm2119939d1_8k_htm.xml | 3468 | 2021-06-17 16:13:17 |
| tm2119939d1_ex10-1.htm | 147957 | 2021-06-17 16:13:17 |
| tm2119939d1_ex10-2.htm | 20733 | 2021-06-17 16:13:17 |