First reported at 920,000 shares this quarter.
Reported position value by quarter
Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.
| Date | Holding Value |
|---|---|
| 2022-03-31 | 4379000 |
| 2022-06-30 | 1260000 |
| 2022-09-30 | 0 |
| 2023-06-30 | 9151950 |
| 2023-09-30 | 11505750 |
| 2023-12-31 | 0 |
Quarterly position history
How this manager's reported quarter-end position changed over time.
| Quarter | Activity | Shares | Change | % of reported 13F | Reported value | Filed | Source filing |
|---|---|---|---|---|---|---|---|
| Q4 2023 | Reduced | 0 | -725,000 (-100.0%) | 0 | $0 | 2024-02-14 | |
| Q3 2023 | Added | 725,000 | +240,000 (49.5%) | 6.0% | $11,505,750 | 2023-11-14 | |
| Q2 2023 | New | 485,000 | +485,000 (0.0%) | 6.93% | $9,151,950 | 2023-08-14 | |
| Q3 2022 | Reduced | 0 | -280,000 (-100.0%) | 0 | $0 | 2022-11-14 | |
| Q2 2022 | Reduced | 280,000 | -640,000 (-69.6%) | 0.5% | $1,260,000 | 2022-08-15 | |
| Q1 2022 | New | 920,000 | +920,000 (0.0%) | 1.47% | $4,379,000 | 2022-05-16 |
Who else reported the position
247 managers reported IMMUNOGEN INC for Q1 2022.
| Manager | Activity | Shares | Change | % of reported 13F | Reported value | Tenure |
|---|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT L P | Added | 21,741,458 | +1,500,000 | 2.26% | $103,489,000 | 9 qtrs |
| BlackRock Inc | Added | 16,432,933 | +1,569,629 | < 0.01% | $78,225,000 | 36 qtrs |
| VANGUARD GROUP INC | Added | 15,478,516 | +346,764 | < 0.01% | $73,678,000 | 36 qtrs |
| STATE STREET CORPORATION | Added | 13,707,389 | +5,638,822 | < 0.01% | $65,247,000 | 36 qtrs |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 13,063,484 | -839,014 | 0.01% | $62,182,000 | 19 qtrs |
| FMR LLC | Reduced | 12,074,343 | -200,480 | < 0.01% | $57,474,000 | 10 qtrs |
| ADAGE CAPITAL PARTNERS GP L L C | Added | 11,586,193 | +1,300,000 | 0.1% | $55,150,000 | 6 qtrs |
| Redmile Group LLC | Added | 9,217,945 | +959,600 | 1.37% | $43,877,000 | 21 qtrs |
| Clearbridge Investments LLC | Reduced | 5,502,843 | -384,087 | 0.02% | $26,194,000 | 36 qtrs |
| MORGAN STANLEY | Added | 5,244,620 | +1,037,265 | < 0.01% | $24,962,000 | 36 qtrs |
Filing details and methodology As reported
- Report period
- March 31, 2022
- Filed
- May 16, 2022
- Filing type
- 13F-HR
- Position type
- COM
Voting authority reported
- Sole
- 920,000
- Shared
- 0
- None
- 0
“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.
Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.