WESTERN DIGITAL CORP

CUSIP: 95810210 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q2 2016
Shares 101,624 Value ($000) $4,803 Avg Close — Range —
Q1 2016
Shares 1,228,505 Value ($000) $58,035 Avg Close — Range —
Q4 2015
Shares 2,191,082 Value ($000) $131,574 Avg Close — Range —
Q3 2015
Shares 924,432 Value ($000) $72,494 Avg Close — Range —
Q2 2015
Shares 924,432 Value ($000) $72,494 Avg Close — Range —
Q1 2015
Shares 1,029,174 Value ($000) $93,665 Avg Close — Range —
Q4 2014
Shares 1,131,898 Value ($000) $125,301 Avg Close — Range —
Q3 2014
Shares 1,115,776 Value ($000) $108,587 Avg Close — Range —
Q2 2014
Shares 799,349 Value ($000) $73,780 Avg Close — Range —
Q1 2014
Shares 1,078,920 Value ($000) $99,066 Avg Close — Range —
Q4 2013
Shares 1,321,721 Value ($000) $110,892 Avg Close — Range —
Q3 2013
Shares 1,134,536 Value ($000) $71,930 Avg Close — Range —
Q2 2013
Shares 1,299,209 Value ($000) $80,668 Avg Close — Range —