Wallace R. Weitz & Co. Upps its Stakes in XO Group Inc (XOXO), Redwood Trust, Inc. (RWT), and Intelligent Systems Corporation (INS)

In three sepearte filings, Wallace Weitz’s Wallace R. Weitz & Co. has disclosed that it has upped its holdings in XO Group Inc (NYSE:XOXO), Redwood Trust, Inc.

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