IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

EVENTIDE ASSET MANAGEMENT, LLC's Holding History (CIK: 0001442891)

Note: Option positions (PUT/CALL) are excluded.

Q4 2023
Shares 763,000 Value ($000) $22,623 Avg Close — Range —
Q3 2023
Shares 1,300,000 Value ($000) $20,631 Avg Close — Range —
Q2 2023
Shares 1,300,000 Value ($000) $24,531 Avg Close — Range —
Q1 2022
Shares 1,000,000 Value ($000) $4,760 Avg Close — Range —
Q4 2021
Shares 1,000,000 Value ($000) $7,420 Avg Close — Range —