Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-23-122415-index-headers.html | 2023-11-30 16:05:25 | |
| 0001104659-23-122415-index.html | 2023-11-30 16:05:25 | |
| 0001104659-23-122415.txt | 2023-11-30 16:05:25 | |
 0001104659-23-122415-xbrl.zip | 100479 | 2023-11-30 16:05:25 |
| FilingSummary.xml | 1639 | 2023-11-30 16:05:25 |
| Financial_Report.xlsx | 5664 | 2023-11-30 16:05:25 |
| imgn-20231130.xsd | 3018 | 2023-11-30 16:05:25 |
| imgn-20231130_lab.xml | 34240 | 2023-11-30 16:05:25 |
| imgn-20231130_pre.xml | 22361 | 2023-11-30 16:05:25 |
| MetaLinks.json | 39248 | 2023-11-30 16:05:25 |
| R1.htm | 38059 | 2023-11-30 16:05:25 |
| report.css | 2767 | 2023-11-30 16:05:25 |
| Show.js | 1085 | 2023-11-30 16:05:25 |
| tm2331816d2_8k.htm | 51026 | 2023-11-30 16:05:25 |
| tm2331816d2_8k_htm.xml | 3185 | 2023-11-30 16:05:25 |
| tm2331816d2_ex2-1.htm | 488740 | 2023-11-30 16:05:25 |
| tm2331816d2_ex99-1.htm | 28485 | 2023-11-30 16:05:25 |
 tm2331816d2_ex99-1img001.jpg | 4033 | 2023-11-30 16:05:25 |