
By Noel Randewich
Feb 17 (Reuters) - Activist investor Starboard Value LP increased its stakes in cryptocurrency firm Riot Platforms RIOT.O and consumer health company Kenvue KVUE.N in the December quarter, while reducing its shares in Rogers Corp ROG.N, News Corp NWSA.O, Salesforce CRM.N and Autodesk ADSK.O, according to a filing on Tuesday to the U.S. Securities and Exchange Commission.
Starboard plans to push for a major overhaul of Tripadvisor's TRIP.O board, and is preparing to nominate a majority slate for the company's eight-member board, the Wall Street Journal reported on Monday.
Starboard owned 9.6 million shares of Tripadvisor with a reported value of about $140 million at the end of December, according to Tuesday's filing. That was up from 9.5 million shares at the end of September.