Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-21-146344-index-headers.html | 2021-12-03 16:07:07 | |
| 0001104659-21-146344-index.html | 2021-12-03 16:07:07 | |
| 0001104659-21-146344.txt | 2021-12-03 16:07:07 | |
 0001104659-21-146344-xbrl.zip | 90026 | 2021-12-03 16:07:07 |
| FilingSummary.xml | 1832 | 2021-12-03 16:07:07 |
| Financial_Report.xlsx | 5640 | 2021-12-03 16:07:07 |
| imgn-20211201.xsd | 3028 | 2021-12-03 16:07:07 |
| imgn-20211201_lab.xml | 34240 | 2021-12-03 16:07:07 |
| imgn-20211201_pre.xml | 22361 | 2021-12-03 16:07:07 |
| MetaLinks.json | 37827 | 2021-12-03 16:07:07 |
| R1.htm | 38545 | 2021-12-03 16:07:07 |
| report.css | 2767 | 2021-12-03 16:07:07 |
| Show.js | 1085 | 2021-12-03 16:07:07 |
 tm2134080d3_ex1-1img001.jpg | 8191 | 2021-12-03 16:07:07 |
| tm2134530d1_8k.htm | 33743 | 2021-12-03 16:07:07 |
| tm2134530d1_8k_htm.xml | 3462 | 2021-12-03 16:07:07 |
| tm2134530d1_ex1-1.htm | 252211 | 2021-12-03 16:07:07 |
| tm2134530d1_ex4-1.htm | 94841 | 2021-12-03 16:07:07 |
| tm2134530d1_ex5-1.htm | 8162 | 2021-12-03 16:07:07 |
 tm2134530d1_ex5-1img001.jpg | 2303 | 2021-12-03 16:07:07 |
| tm2134530d1_ex99-1.htm | 5961 | 2021-12-03 16:07:07 |
| tm2134530d1_ex99-2.htm | 16476 | 2021-12-03 16:07:07 |
| tm2134530d1_ex99-3.htm | 34358 | 2021-12-03 16:07:07 |