One of the most prolific activist investors in Japanese companies is targeting Nissan Motor, setting up a corporate standoff that investors hope will translate into a higher stock price.

Nissan Motor shares jumped as much as almost 21% on Tuesday after a filing showed activist investor Effissimo Capital Management had taken a stake in the struggling Japanese automaker.

TOKYO (Reuters) - Nissan Motor shares jumped as much as 6% in early Tokyo trading on Friday after Japan's Diamond Online magazine reported that activist investor Oasis Management had taken a stake in the automaker. Nissan shares were last up 4% at 426.7 yen ($2.73), compared with a 0.9% advance on the benchmark Nikkei index.

NISSAN Motor shares jumped the most in 15 years after an activist investor took a 2.5 per cent stake in the embattled Japanese automaker. Read more at The Business Times.

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Nissan Motor shares jumped their most in a decade and a half after an activist investor took a stake in the Japanese carmaker in the midst of turnaround efforts.

Shares in Nissan surged as much as 20 per cent on Tuesday, after a fund managed by activist investor Effissimo Capital Management was revealed to have taken a stake in the struggling Japanese automaker.

STORY: Nissan shares jumped as much as 6% on Friday (Nov 15) after a report that activist investor Oasis Management had taken a stake in the automaker.Nissan's stock had also jumped on Tuesday after a filing showed an entity related to activist Effissimo Capital Management had also invested.