ALTAIR ENGR INC

CUSIP: 021369103 Class: Common Stock

ADVENT CAPITAL MANAGEMENT /DE/'s Holding History (CIK: 0001097278)

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

Q3 2023
Shares 17,400 Value ($000) $1,089 Avg Close — Range —
Q2 2022
Shares 23,760 Value ($000) $1,247 Avg Close — Range —