QUANTUM CORP

CUSIP: 747906204 Class: CMN

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q1 2016
Shares 310,975 Value ($000) $190 Avg Close — Range —
Q4 2015
Shares 943,399 Value ($000) $877 Avg Close — Range —
Q3 2015
Shares 1,419,646 Value ($000) $990 Avg Close — Range —
Q2 2015
Shares 1,448,146 Value ($000) $2,433 Avg Close — Range —
Q1 2015
Shares 971,665 Value ($000) $1,555 Avg Close — Range —
Q4 2014
Shares 971,665 Value ($000) $1,710 Avg Close — Range —
Q3 2014
Shares 1,024,975 Value ($000) $1,189 Avg Close — Range —
Q2 2014
Shares 1,074,545 Value ($000) $1,310 Avg Close — Range —
Q1 2014
Shares 1,083,784 Value ($000) $1,322 Avg Close — Range —
Q4 2013
Shares 1,083,784 Value ($000) $1,300 Avg Close — Range —
Q3 2013
Shares 1,093,520 Value ($000) $1,509 Avg Close — Range —
Q2 2013
Shares 1,312,957 Value ($000) $1,799 Avg Close — Range —