TripAdvisor's stock price surged 6.14% in post-market trading following reports that activist investor Starboard Value has increased its stake and is pushing for board changes at the travel platform.

According to Wall Street Journal reports, Starboard Value now holds more than 9% of TripAdvisor and is preparing to nominate a majority slate on the company's eight-person board. The activist investor is pushing for a significant shake-up of the board, which typically signals potential strategic changes aimed at increasing shareholder value.

Such moves by activist investors often generate positive market sentiment as traders anticipate potential operational improvements, cost reductions, or strategic shifts that could enhance the company's performance and valuation.