[CUSIP No. 45173K 10 1 13G AGREEMENT Dated: February 11, 2015 REDPOINT VENTURES IV, L.P. By its General Partner, Redpoint Ventures IV, LLC John L. Walecka Manager REDPOINT ASSOCIATES IV, LLC John L. Walecka Manager REDPOINT VENTURES IV, LLC John L. Walecka Manager Page 8 EX-99.1 2 d869178dex991.htm EX-99.1] [CUSIP No. 45173K 10 1 13G 1. Names of Reporting Persons Redpoint Ventures IV, L.P. 2. Check the Appropriate Box if a Member of a Group (see instructions) ¨ x (a) 3. SEC USE ONLY 4. Citizenship or Place of Organization Delaware Number of Shares Beneficially Owned by Each Reporting Person With: 5. Sole Voting Power 0]

[(Name of Issuer) Class A Ordinary Shares (Title of Class of Securities) (CUSIP Number) December 31, 2014 (Date of Event Which Requires Filing of this Statement) [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) * CUSIP No. 1. NAMES OF REPORTING PERSONS 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 3. SEC USE ONLY]