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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
887969	Mrv Communications Inc	MRVC.PK	Semiconductors & Related Devices (3674)	061340090

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1345051	H Kenneth Stein Shubin	20415 Nordhoff Street Chatsworth CA 91311		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-11-16	6,357	$1.31	232,760	No	4	P	Direct
Common Stock	Acquisiton	2010-11-16	39,643	$1.31	272,403	No	4	P	Indirect	See Footnote
Common Stock	Acquisiton	2010-11-17	2,039	$1.30	274,442	No	4	P	Direct
Common Stock	Acquisiton	2010-11-17	12,713	$1.30	287,155	No	4	P	Indirect	See Footnote
Common Stock	Acquisiton	2010-11-17	3,542	$1.31	290,697	No	4	P	Direct
Common Stock	Acquisiton	2010-11-17	22,088	$1.31	312,785	No	4	P	Indirect	See Footnote
Common Stock	Acquisiton	2010-11-18	974	$1.32	313,759	No	4	P	Direct
Common Stock	Acquisiton	2010-11-18	9,776	$1.32	323,535	No	4	P	Indirect	See Footnote
Common Stock	Acquisiton	2010-11-18	71	$1.33	323,606	No	4	P	Direct
Common Stock	Acquisiton	2010-11-18	709	$1.33	324,315	No	4	P	Indirect	See Footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Indirect	See Footnote
No	4	P	Direct
No	4	P	Indirect	See Footnote
No	4	P	Direct
No	4	P	Indirect	See Footnote
No	4	P	Direct
No	4	P	Indirect	See Footnote
No	4	P	Direct
No	4	P	Indirect	See Footnote

Footnotes

Dr. Shubin Stein previously beneficially owned 100,000 shares of MRV Communications Inc.'s common stock, and with the additional purchases reported above, now owns 112,990 directly. In addition, Dr. Shubin Stein has sole trading and voting discretion as the managing member of Spencer Capital Management, LLC, which manages various accounts that hold 211,325 shares of MRV Communications, Inc. common stock including the reported purchases above. As the managing member of Spencer Capital Management, LLC, Dr. Shubin Stein may be deemed to be the beneficial owner of the 211,325 shares held in the managed accounts. Dr. Shubin Stein disclaims beneficial ownership of any of the shares included in this report except to the extent of his pecuniary interest therein.