IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Artal Group S.A.'s Holding History (CIK: 0001053906)

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

Q3 2023
Shares 1,512,113 Value ($000) $24 Avg Close — Range —
Q2 2023
Shares 765,497 Value ($000) $14 Avg Close — Range —
Q3 2014
Shares 1,500,000 Value ($000) $15,885 Avg Close — Range —
Q2 2014
Shares 1,500,000 Value ($000) $17,775 Avg Close — Range —
Q1 2014
Shares 1,300,000 Value ($000) $19,409 Avg Close — Range —
Q4 2013
Shares 1,650,000 Value ($000) $24,206 Avg Close — Range —
Q3 2013
Shares 1,650,000 Value ($000) $28,083 Avg Close — Range —
Q2 2013
Shares 1,700,000 Value ($000) $28,203 Avg Close — Range —