ALTAIR ENGR INC

CUSIP: 021369103 Class: Common Stock

EVENTIDE ASSET MANAGEMENT, LLC's Holding History (CIK: 0001442891)

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

Q1 2019
Shares 628,000 Value ($000) $23,117 Avg Close — Range —
Q4 2018
Shares 1,000,000 Value ($000) $27,580 Avg Close — Range —
Q3 2018
Shares 1,000,000 Value ($000) $43,450 Avg Close — Range —