QUANTUM CORP

CUSIP: 747906204 Class: CMN

Starboard Value LP's Holding History (CIK: 0001517137)

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

Q1 2017
Shares 7,518,996 Value ($000) $6,542 Avg Close — Range —
Q4 2016
Shares 7,518,996 Value ($000) $6,257 Avg Close — Range —
Q3 2016
Shares 18,968,996 Value ($000) $13,965 Avg Close — Range —
Q2 2016
Shares 18,968,996 Value ($000) $7,967 Avg Close — Range —
Q1 2016
Shares 18,968,996 Value ($000) $11,571 Avg Close — Range —
Q4 2015
Shares 25,695,000 Value ($000) $23,896 Avg Close — Range —
Q3 2015
Shares 25,695,000 Value ($000) $17,917 Avg Close — Range —
Q2 2015
Shares 25,695,000 Value ($000) $43,168 Avg Close — Range —
Q1 2015
Shares 25,695,000 Value ($000) $41,112 Avg Close — Range —
Q4 2014
Shares 25,695,000 Value ($000) $45,223 Avg Close — Range —
Q3 2014
Shares 25,695,000 Value ($000) $29,806 Avg Close — Range —
Q2 2014
Shares 25,695,000 Value ($000) $31,348 Avg Close — Range —
Q1 2014
Shares 25,695,000 Value ($000) $31,348 Avg Close — Range —
Q4 2013
Shares 25,695,000 Value ($000) $30,834 Avg Close — Range —
Q3 2013
Shares 25,695,000 Value ($000) $35,459 Avg Close — Range —
Q2 2013
Shares 25,695,000 Value ($000) $35,202 Avg Close — Range —