Jan 24 (Reuters) - Hedge fund Elliott Management Corp has built a "significant" stake in Japanese automotive battery component supplier Dai Nippon Printing Co Ltd (DNP) (7912.T), sources familiar with the matter told Reuters on Tuesday. A DNP spokesperson said the company had confirmed Elliott's investment late last year, but declined to comment on details. The Financial Times, which first reported the news, said Elliott now holds a stake just under 5% worth $300 million. Elliott declined to comment. It recently won a board seat at Pinterest Inc (PINS.N) when the company added Elliott portfolio manager Marc Steinberg as a director.

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