IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

PURA VIDA INVESTMENTS, LLC's Holding History (CIK: 0001590144)

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

Q4 2022
Shares 50,000 Value ($000) $248 Avg Close — Range —
Q4 2021
Shares 249,283 Value ($000) $1,850 Avg Close — Range —
Q3 2021
Shares 343,048 Value ($000) $1,945 Avg Close — Range —
Q2 2021
Shares 689,049 Value ($000) $4,541 Avg Close — Range —
Q1 2021
Shares 804,192 Value ($000) $6,514 Avg Close — Range —
Q4 2020
Shares 615,286 Value ($000) $3,969 Avg Close — Range —