IMMUNOGEN INC

CUSIP: 45253H101 Class: Common Stock

Employees Retirement System of Texas's Holding History (CIK: 0001398739)

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

Q3 2021
Shares 208,100 Value ($000) $1,180 Avg Close — Range —
Q2 2021
Shares 208,100 Value ($000) $1,371 Avg Close — Range —
Q1 2021
Shares 208,100 Value ($000) $1,686 Avg Close — Range —
Q4 2020
Shares 208,100 Value ($000) $1,342 Avg Close — Range —
Q3 2020
Shares 208,100 Value ($000) $749 Avg Close — Range —
Q2 2020
Shares 208,100 Value ($000) $957 Avg Close — Range —
Q1 2020
Shares 208,100 Value ($000) $710 Avg Close — Range —
Q4 2019
Shares 208,100 Value ($000) $1,062 Avg Close — Range —
Q3 2019
Shares 208,100 Value ($000) $504 Avg Close — Range —
Q2 2019
Shares 80,000 Value ($000) $174 Avg Close — Range —
Q1 2019
Shares 80,000 Value ($000) $217 Avg Close — Range —
Q3 2014
Shares 71,000 Value ($000) $752 Avg Close — Range —