ARCH CAPITAL GROUP LTD

CUSIP: 2740542 Class: ORD

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

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

Q2 2015
Shares 24,109 Value ($000) $1,614 Avg Close — Range —
Q1 2015
Shares 21,604 Value ($000) $1,331 Avg Close — Range —