CHINA - 2025/03/07: In this photo illustration, A woman browses Tripadvisor website on her laptop. ... More (Photo Illustration by Serene Lee/SOPA Images/LightRocket via Getty Images)SOPA Images/LightRocket via Getty Images Tripadvisor stock (NASDAQ: TRIP) surged 8% on July 2 — significantly surpassing the S&P 500's modest 0.47% increase — after activist investor Starboard Value revealed a stake exceeding 9% in the online travel company. The approximately $160 million investment caused shares to climb anoth ...