MATERIALISE NV

Ticker: MTLS CUSIP: 57667T100 Class: ADR

ARDSLEY ADVISORY PARTNERS LP's Holding History (CIK: 0000900529)

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

Q3 2015
Shares 20,000 Value ($000) $154 Avg Close — Range —
Q2 2015
Shares 35,000 Value ($000) $318 Avg Close — Range —
Q3 2014
Shares 20,030 Value ($000) $225 Avg Close — Range —