ALTAIR ENGR INC

CUSIP: 021369103 Class: Common Stock

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q3 2024
Shares 1,471,184 Value ($000) $140,513 Avg Close — Range —
Q2 2024
Shares 933,818 Value ($000) $91,589 Avg Close — Range —