[2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o (b) x 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 0 SOLE VOTING POWER 6 SHARED VOTING POWER 7 SOLE DISPOSITIVE POWER 8 SHARED DISPOSITIVE POWER 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH 10]
[CUSIP No. 836034108 1. Names of Reporting Persons IDG Technology Venture Investment, Inc. 2. Check the Appropriate Box if a Member of a Group (See Instructions) o (a) o (b) 3. SEC Use Only]
[2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o (b) x 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 0 SOLE VOTING POWER 6 SHARED VOTING POWER 7 SOLE DISPOSITIVE POWER 8 SHARED DISPOSITIVE POWER 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH 10]
[CUSIP No. 26833A105 1. Names of Reporting Persons IDG Technology Venture Investment, Inc. 2. Check the Appropriate Box if a Member of a Group (See Instructions) o (a) o (b) 3. SEC Use Only]
[3 12 CUSIP NO. 65487X102 13 G Page 1 NAME OF REPORTING PERSON 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) o (b) x 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 0 SOLE VOTING POWER]
[CUSIP No. 836034108 1. Names of Reporting Persons IDG Technology Venture Investment, Inc. 2. Check the Appropriate Box if a Member of a Group (See Instructions) o (a) o (b) 3. SEC Use Only]
[CUSIP No. 26833A105 1. Names of Reporting Persons IDG Technology Venture Investment, Inc. 2. Check the Appropriate Box if a Member of a Group (See Instructions) o (a) o (b) 3. SEC Use Only]
[3 12 CUSIP NO. 65487X102 13 G Page 1 NAME OF REPORTING PERSON 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A (a) o (b) x 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 0 SOLE VOTING POWER]
[2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) o (b) x 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5 0 SOLE VOTING POWER 6 SHARED VOTING POWER 7 SOLE DISPOSITIVE POWER 8 SHARED DISPOSITIVE POWER 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH 10]
[Dated: February 8, 2011 Columbia Wanger Asset Management, LLC Bruce H. Lauer Chief Operating Officer Columbia Acorn Trust Bruce H. Lauer Vice President, Treasurer and Secretary EX-99.1 2 c62860k1exv99w1.htm EX-99.1] [CUSIP No. 45172L100 1 NAMES OF REPORTING PERSONS 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) o (a) o (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware 5 SOLE VOTING POWER]
