IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

ArrowMark Colorado Holdings LLC's Holding History (CIK: 0001483859)

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

Q4 2023
Shares 200,780 Value ($000) $5,953 Avg Close — Range —
Q3 2023
Shares 383,780 Value ($000) $6,091 Avg Close — Range —
Q2 2023
Shares 164,492 Value ($000) $3,104 Avg Close — Range —
Q2 2019
Shares 1,046,376 Value ($000) $2,271 Avg Close — Range —
Q1 2019
Shares 2,793,351 Value ($000) $7,570 Avg Close — Range —
Q4 2018
Shares 3,606,724 Value ($000) $17,312 Avg Close — Range —
Q3 2018
Shares 1,927,950 Value ($000) $18,258 Avg Close — Range —