ALTAIR ENGR INC

CUSIP: 021369103 Class: Common Stock

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q3 2021
Shares 5,300 Value ($000) $365 Avg Close — Range —
Q2 2021
Shares 48,242 Value ($000) $3,327 Avg Close — Range —
Q1 2021
Shares 47,100 Value ($000) $2,947 Avg Close — Range —
Q4 2020
Shares 26,600 Value ($000) $1,548 Avg Close — Range —
Q2 2020
Shares 66,097 Value ($000) $2,627 Avg Close — Range —
Q1 2019
Shares 196,281 Value ($000) $7,225 Avg Close — Range —
Q4 2018
Shares 190,593 Value ($000) $5,257 Avg Close — Range —
Q3 2018
Shares 514,069 Value ($000) $22,336 Avg Close — Range —
Q2 2018
Shares 523,268 Value ($000) $17,886 Avg Close — Range —
Q1 2018
Shares 269,930 Value ($000) $8,465 Avg Close — Range —
Q4 2017
Shares 26,001 Value ($000) $622 Avg Close — Range —