Rubicon Project to Announce Fourth Quarter and Full Year 2014 Results on February 24, 2015

Rubicon Project (NYSE: RUBI) will announce its financial results for the fourth quarter and year ended December 31, 2014 after the market close on Tuesday, February 24, 2015. The Company will host a conference call at 1:30 PM (PT) / 4:30 PM (ET) the same day to discuss its financial results and outlook.

To access the conference call by telephone, interested parties should dial (877) 201-0168 (domestic) or (647) 788-4901 (international) and use conference ID 65859547. A telephonic replay of the conference call will be available for one week. To access the telephonic replay, interested parties should dial (855) 859-2056 (domestic) and (404) 537-3406 (international) and use conference ID 65859547.

A live audio webcast of the conference call will also be available within the “Events and Presentations” section of Rubicon Project’s investor relations website at http://investor.rubiconproject.com. The webcast will be available for replay following the conclusion of the live call.

About Rubicon Project

Rubicon Project (NYSE: RUBI) has engineered the Advertising Automation Cloud, one of the largest real-time cloud and Big Data computing systems. The Company’s mission is to automate the buying and selling of advertising by offering innovative products to connect buyers and sellers globally.

www.RubiconProject.com@RubiconProject