Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-20-005920-index-headers.html | 2020-01-22 16:09:57 | |
| 0001104659-20-005920-index.html | 2020-01-22 16:09:57 | |
| 0001104659-20-005920.txt | 2020-01-22 16:09:57 | |
 0001104659-20-005920-xbrl.zip | 15038 | 2020-01-22 16:09:57 |
| FilingSummary.xml | 1642 | 2020-01-22 16:09:57 |
| Financial_Report.xlsx | 5762 | 2020-01-22 16:09:57 |
| imgn-20200122.xsd | 3189 | 2020-01-22 16:09:57 |
| imgn-20200122_lab.xml | 34591 | 2020-01-22 16:09:57 |
| imgn-20200122_pre.xml | 22712 | 2020-01-22 16:09:57 |
| MetaLinks.json | 38740 | 2020-01-22 16:09:57 |
| R1.htm | 38584 | 2020-01-22 16:09:57 |
| report.css | 2766 | 2020-01-22 16:09:57 |
| Show.js | 1085 | 2020-01-22 16:09:57 |
| tm205443-3_8k.htm | 31086 | 2020-01-22 16:09:57 |
| tm205443-3_8k_htm.xml | 3469 | 2020-01-22 16:09:57 |
| tm205443d3_ex99-1.htm | 8143 | 2020-01-22 16:09:57 |