Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-21-144687-index-headers.html | 2021-11-30 06:37:44 | |
| 0001104659-21-144687-index.html | 2021-11-30 06:37:44 | |
| 0001104659-21-144687.txt | 2021-11-30 06:37:44 | |
 0001104659-21-144687-xbrl.zip | 15783 | 2021-11-30 06:37:44 |
| FilingSummary.xml | 1635 | 2021-11-30 06:37:44 |
| Financial_Report.xlsx | 5639 | 2021-11-30 06:37:44 |
| imgn-20211130.xsd | 3028 | 2021-11-30 06:37:44 |
| imgn-20211130_lab.xml | 34240 | 2021-11-30 06:37:44 |
| imgn-20211130_pre.xml | 22361 | 2021-11-30 06:37:44 |
| MetaLinks.json | 37827 | 2021-11-30 06:37:44 |
| R1.htm | 38543 | 2021-11-30 06:37:44 |
| report.css | 2767 | 2021-11-30 06:37:44 |
| Show.js | 1085 | 2021-11-30 06:37:44 |
| tm2134074d1_8k.htm | 23059 | 2021-11-30 06:37:44 |
| tm2134074d1_8k_htm.xml | 3462 | 2021-11-30 06:37:44 |
| tm2134074d1_ex99-1.htm | 19077 | 2021-11-30 06:37:44 |
 tm2134074d1_ex99-1img001.jpg | 6585 | 2021-11-30 06:37:44 |