The founding family of 7-Eleven’s Japanese parent company has failed to secure the money to buy it out, the company said Thursday, months after they launched a bid worth over $50 billion to fend off a foreign takeover.

       Seven & i Holdings, which sits atop a vast network of 85,000 convenience stores, primarily in Asia and the United States, said in a statement that it would assess alternatives, including the proposal from Canada’s Alimentation Couche-Tard that the founding family had rejected.

       Junro Ito, an executive at Seven & i and the son of its founder, and Ito-Kogyo, the family’s asset management company, had begun their buyout attempt in November, after Couche-Tard launched its unsolicited takeover attempt.

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