Tokyo Broadcasting System Inc. may take countermeasures against online shopping mall operator Rakuten Inc., which has suddenly emerged as the TV station's biggest shareholder and takeover threat, market sources said Friday.
Whether TBS proceeds will depend the conduct of an investment fund led by Yoshiaki Murakami, another major shareholder, the sources said.
Rakuten said Thursday it had acquired a 15.46 percent stake in the broadcaster and proposed integrating its management with TBS under a joint holding company.