13D Filing: Starboard Value Lp and Quantum Corp (QTM)

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Page 2 of 20 SEC Filing

1
NAME OF REPORTING PERSON
STARBOARD VALUE LP
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
  (a) o
  (b) o
3
SEC USE ONLY
4
SOURCE OF FUNDS
OO
5
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
¨
6
CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
7
SOLE VOTING POWER
42,279,698*
8
SHARED VOTING POWER
– 0 –
9
SOLE DISPOSITIVE POWER
42,279,698*
10
SHARED DISPOSITIVE POWER
– 0 –
11
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
42,279,698*
12
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
o
13
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
14.8%
14
TYPE OF REPORTING PERSON
PN

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