Billionaire Mario Gabelli’s GAMCO Investors Reports New Stake in Silicon Graphics International Corp (SGI)

Page 9 of 18 – SEC Filing

CUSIP No. 82706L108

1	Names of reporting persons I.R.S. identification nos. of above persons (entities only)         Mario J. Gabelli
2	Check the appropriate box if a member of a group (SEE INSTRUCTIONS) (a) (b)
3	Sec use only
4	Source of funds (SEE INSTRUCTIONS) None
5	Check box if disclosure of legal proceedings is required pursuant to items 2 (d) or 2 (e)
6	Citizenship or place of organization    USA
Number Of Shares Beneficially Owned By Each Reporting Person With		: 7 : : :	Sole voting power None   (Item 5)
		: 8 : : :	Shared voting power None
		: 9 : : :	Sole dispositive power None   (Item 5)
		:10 : : :	Shared dispositive power None
11	Aggregate amount beneficially owned by each reporting person None   (Item 5)
X 12	Check box if the aggregate amount in row (11) excludes certain shares (SEE INSTRUCTIONS)
13	Percent of class represented by amount in row (11) 0.00%
14	Type of reporting person (SEE INSTRUCTIONS)     IN