IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Redmile Group, LLC's Holding History (CIK: 0001425738)

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

Q4 2023
Shares 16,423,922 Value ($000) $486,969 Avg Close — Range —
Q3 2023
Shares 17,503,417 Value ($000) $277,779 Avg Close — Range —
Q2 2023
Shares 17,730,417 Value ($000) $334,573 Avg Close — Range —
Q1 2023
Shares 8,046,217 Value ($000) $30,897 Avg Close — Range —
Q4 2022
Shares 8,532,817 Value ($000) $42,323 Avg Close — Range —
Q3 2022
Shares 8,548,145 Value ($000) $40,860 Avg Close — Range —
Q2 2022
Shares 9,141,045 Value ($000) $41,135 Avg Close — Range —
Q1 2022
Shares 9,217,945 Value ($000) $43,877 Avg Close — Range —
Q4 2021
Shares 8,258,345 Value ($000) $61,277 Avg Close — Range —
Q3 2021
Shares 8,258,345 Value ($000) $46,825 Avg Close — Range —
Q2 2021
Shares 8,880,945 Value ($000) $58,525 Avg Close — Range —
Q1 2021
Shares 9,688,066 Value ($000) $78,473 Avg Close — Range —
Q4 2020
Shares 10,528,179 Value ($000) $67,907 Avg Close — Range —
Q3 2020
Shares 10,477,879 Value ($000) $37,720 Avg Close — Range —
Q2 2020
Shares 12,006,979 Value ($000) $55,232 Avg Close — Range —
Q1 2020
Shares 16,733,879 Value ($000) $57,063 Avg Close — Range —
Q4 2019
Shares 14,639,960 Value ($000) $74,737 Avg Close — Range —
Q3 2019
Shares 14,616,560 Value ($000) $35,372 Avg Close — Range —
Q2 2019
Shares 13,954,794 Value ($000) $30,282 Avg Close — Range —
Q1 2019
Shares 13,063,767 Value ($000) $35,403 Avg Close — Range —
Q4 2018
Shares 10,884,607 Value ($000) $52,246 Avg Close — Range —
Q3 2018
Shares 12,309,035 Value ($000) $116,567 Avg Close — Range —
Q2 2018
Shares 12,315,942 Value ($000) $119,834 Avg Close — Range —
Q1 2018
Shares 9,702,482 Value ($000) $102,070 Avg Close — Range —
Q4 2017
Shares 10,906,962 Value ($000) $69,914 Avg Close — Range —
Q3 2017
Shares 8,061,497 Value ($000) $61,670 Avg Close — Range —
Q2 2017
Shares 5,212,736 Value ($000) $37,063 Avg Close — Range —
Q1 2017
Shares 3,984,734 Value ($000) $15,421 Avg Close — Range —