Rupert Murdoch gave the cold shoulder to his largest shareholder , John C. Malone , yesterday by extending a poison pill that blocks Mr. Malone 's Liberty Media Corporation from buying more shares of Mr. Murdoch 's News Corporation .
Rupert Murdoch /business/person/company News Corporation
News Corporation /business/company/founders Rupert Murdoch
John C. Malone /business/person/company Liberty Media Corporation
NNP NNP VBD DT JJ NN TO PRP$ JJS NN , NNP NNP NNP , NN IN VBG DT NN NN WDT VBZ NNP NNP POS NNP NNP NNP IN VBG JJR NNS IN NNP NNP POS NNP NNP .
Rupert Murdoch
PERSON
News Corporation
ORGANIZATION
/business/person/company
News Corporation
ORGANIZATION
Rupert Murdoch
PERSON
/business/company/founders
John C. Malone
PERSON
Liberty Media Corporation
ORGANIZATION
/business/person/company