WESCO AIRCRAFT HLDGS INC

CUSIP: 950814103 Class: COMMON STOCK

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q3 2014
Shares 56,277 Value ($000) $979 Avg Close — Range —
Q2 2014
Shares 73,158 Value ($000) $1,460 Avg Close — Range —
Q1 2014
Shares 112,775 Value ($000) $2,482 Avg Close — Range —
Q4 2013
Shares 76,850 Value ($000) $1,684 Avg Close — Range —
Q3 2013
Shares 71,050 Value ($000) $1,487 Avg Close — Range —
Q2 2013
Shares 53,775 Value ($000) $998 Avg Close — Range —