WESTPORT FUEL SYSTEMS INC

CUSIP: 960908309 Class: COM NEW

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

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

Q3 2013
Shares 389,080 Value ($000) $9,412 Avg Close — Range —
Q2 2013
Shares 305,167 Value ($000) $10,232,250 Avg Close — Range —