IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Silphium Asset Management Ltd's Holding History (CIK: 0001758440)

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

Q4 2023
Shares 65,000 Value ($000) $1,927 Avg Close — Range —
Q2 2018
Shares 12,547 Value ($000) $122 Avg Close — Range —
Q1 2018
Shares 32,547 Value ($000) $342 Avg Close — Range —