IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

SECTORAL ASSET MANAGEMENT INC's Holding History (CIK: 0001274413)

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

Q4 2023
Shares 17,896 Value ($000) $531 Avg Close — Range —
Q3 2023
Shares 464,112 Value ($000) $7,365 Avg Close — Range —
Q2 2023
Shares 436,447 Value ($000) $8,236 Avg Close — Range —
Q1 2023
Shares 1,001,444 Value ($000) $3,846 Avg Close — Range —
Q4 2022
Shares 803,944 Value ($000) $3,988 Avg Close — Range —
Q3 2022
Shares 848,744 Value ($000) $4,057 Avg Close — Range —
Q2 2022
Shares 940,244 Value ($000) $4,231 Avg Close — Range —
Q1 2022
Shares 878,844 Value ($000) $4,183 Avg Close — Range —
Q1 2019
Shares 58,013 Value ($000) $157 Avg Close — Range —
Q4 2018
Shares 135,313 Value ($000) $650 Avg Close — Range —
Q3 2018
Shares 21,013 Value ($000) $199 Avg Close — Range —
Q3 2014
Shares 2,269,597 Value ($000) $24,035 Avg Close — Range —
Q2 2014
Shares 3,218,276 Value ($000) $38,137 Avg Close — Range —
Q1 2014
Shares 3,623,786 Value ($000) $54,103 Avg Close — Range —
Q4 2013
Shares 3,513,282 Value ($000) $51,540 Avg Close — Range —
Q3 2013
Shares 3,652,893 Value ($000) $62,172 Avg Close — Range —
Q2 2013
Shares 6,418,984 Value ($000) $106,491 Avg Close — Range —