IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

IRONWOOD INVESTMENT MANAGEMENT LLC's Holding History (CIK: 0001127761)

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

Q4 2023
Shares 174,540 Value ($000) $5,175 Avg Close — Range —
Q3 2023
Shares 174,646 Value ($000) $2,772 Avg Close — Range —
Q2 2023
Shares 194,080 Value ($000) $3,662 Avg Close — Range —
Q1 2023
Shares 193,753 Value ($000) $744 Avg Close — Range —
Q4 2022
Shares 198,833 Value ($000) $986 Avg Close — Range —
Q3 2022
Shares 177,600 Value ($000) $849 Avg Close — Range —
Q2 2022
Shares 177,706 Value ($000) $800 Avg Close — Range —
Q1 2022
Shares 177,561 Value ($000) $845 Avg Close — Range —