QUANTUM CORP

CUSIP: 74790620 Class: COM DSSG

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

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

Q3 2016
Shares 916,434 Value ($000) $675 Avg Close — Range —
Q2 2016
Shares 916,434 Value ($000) $385 Avg Close — Range —
Q1 2016
Shares 1,031,488 Value ($000) $629 Avg Close — Range —
Q4 2015
Shares 1,400,922 Value ($000) $1,303 Avg Close — Range —
Q3 2015
Shares 2,268,564 Value ($000) $3,811 Avg Close — Range —
Q2 2015
Shares 2,268,564 Value ($000) $3,811 Avg Close — Range —
Q1 2015
Shares 2,334,842 Value ($000) $3,736 Avg Close — Range —
Q4 2014
Shares 2,334,842 Value ($000) $4,109 Avg Close — Range —
Q3 2014
Shares 1,503,091 Value ($000) $1,744 Avg Close — Range —
Q2 2014
Shares 650,828 Value ($000) $794 Avg Close — Range —
Q1 2014
Shares 659,908 Value ($000) $805 Avg Close — Range —
Q4 2013
Shares 532,261 Value ($000) $639 Avg Close — Range —
Q3 2013
Shares 481,317 Value ($000) $664 Avg Close — Range —
Q2 2013
Shares 297,229 Value ($000) $407 Avg Close — Range —