Barry Rosenstein's Jana Partners disclosed in a regulatory filing its holdings as of December 31, 2018. Jana made eight new buys during the fourth quarter, including, by size of position, Centene (CNC), Synopsys (SNPS), Salesforce (CRM), Worldpay (WP) and MasterCard (MA). Jana exited 23 positions during the quarter, including by size of previous position, Electronic Arts (EA), Keurig Dr Pepper (KDP), Alibaba (BABA), Agilent (A) and Hain Celestial (HAIN). Jana increased its stake in nine holdings, including by size, Conagra Brands (CAG), New Oriental Education (EDU), Microsoft (MSFT), Carvana (CVNA), Tiffany (TIF) and Adobe (ADBE). The fund reduced its stake in 12 holdings, including by size Zimmer Biomet (ZBH), HD Supply (HDS), Apple (AAPL), Exact Sciences (EXAS), Falcon Minerals (FLMN) and First Data (FDC). Jana's top holdings as of December 31, in order of size, were Conagra, Zimmer Biomet, HD Supply, Tiffany and Jack in the BOX (JACK).