Shares of online travel company Tripadvisor TRIP.O up more than 4% at about $10 in morning trading
Co signs cooperation agreement with activist investor Starboard Value and expands its board from eight to 10 directors
Tripadvisor adds Dhiren Fonseca and Andrew Cates to its board, effective immediately, as part of agreement
Starboard will recommend two additional directors for election at co's annual stockholders meeting
Including session's moves, stock has fallen 33.1% YTD