Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001558370-19-011637-index-headers.html | 2019-12-20 07:03:50 | |
| 0001558370-19-011637-index.html | 2019-12-20 07:03:50 | |
| 0001558370-19-011637.txt | 2019-12-20 07:03:50 | |
 0001558370-19-011637-xbrl.zip | 45415 | 2019-12-20 07:03:50 |
| ex-10d1.htm | 194966 | 2019-12-20 07:03:50 |
| ex-10d2.htm | 57211 | 2019-12-20 07:03:50 |
| ex-10d3.htm | 48780 | 2019-12-20 07:03:50 |
| FilingSummary.xml | 1804 | 2019-12-20 07:03:50 |
| Financial_Report.xlsx | 5782 | 2019-12-20 07:03:50 |
| imgn-20191219.xsd | 3041 | 2019-12-20 07:03:50 |
| imgn-20191219x8kb2b8746.htm | 36054 | 2019-12-20 07:03:50 |
| imgn-20191219x8kb2b8746_htm.xml | 4692 | 2019-12-20 07:03:50 |
| imgn-20191219_lab.xml | 16757 | 2019-12-20 07:03:50 |
| imgn-20191219_pre.xml | 9904 | 2019-12-20 07:03:50 |
| MetaLinks.json | 16696 | 2019-12-20 07:03:50 |
| R1.htm | 38635 | 2019-12-20 07:03:50 |
| report.css | 2766 | 2019-12-20 07:03:50 |
| Show.js | 1084 | 2019-12-20 07:03:50 |