WESCO AIRCRAFT HLDGS INC

CUSIP: 950814103 Class: COMMON STOCK

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q1 2015
Shares 10,400 Value ($000) $165 Avg Close — Range —
Q4 2014
Shares 20,400 Value ($000) $285 Avg Close — Range —
Q3 2014
Shares 20,400 Value ($000) $355 Avg Close — Range —
Q2 2014
Shares 634,807 Value ($000) $12,671 Avg Close — Range —
Q1 2014
Shares 639,404 Value ($000) $14,073 Avg Close — Range —
Q4 2013
Shares 641,771 Value ($000) $14,068 Avg Close — Range —
Q3 2013
Shares 598,751 Value ($000) $12,532 Avg Close — Range —