IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

TANG CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001232621)

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

Q4 2023
Shares 2,199,137 Value ($000) $65,204 Avg Close — Range —
Q3 2023
Shares 1,500,000 Value ($000) $23,805 Avg Close — Range —
Q2 2023
Shares 1,300,000 Value ($000) $24,531 Avg Close — Range —
Q1 2023
Shares 1,274,853 Value ($000) $4,895 Avg Close — Range —
Q4 2022
Shares 1,274,853 Value ($000) $6,323 Avg Close — Range —
Q3 2022
Shares 1,500,000 Value ($000) $7,170 Avg Close — Range —
Q2 2022
Shares 1,500,000 Value ($000) $6,750 Avg Close — Range —
Q1 2022
Shares 1,500,000 Value ($000) $7,140 Avg Close — Range —
Q4 2021
Shares 1,500,000 Value ($000) $11,130 Avg Close — Range —