NEW YORK ( TheStreet) -- Hedge fund trader Steve Cohen has bought a significant chunk of Midwestern convenience chain Casey's General Stores ( CASY - Get Report), according to the latest filing with the Securities and Exchange Commission.

Cohen's fund S.A.C Capital Advisors bought more than 1.7 million shares in the retailer, and now owns a 4.7% stake in the company.

Casey's is in the midst of fending off a hostile $38.50 per share takeover bid from Canadian chain Alimentation Couche-Tard, which runs the Circle K convenience chain in the U.S.

Couche-Tard has been launching a takeover battle, most recently urging shareholders to appoint at least three of its eight nominees to the board. Shareholders of Casey's approved the company's board nominees on Thursday, rejecting the slate from Couche-Tard, the Associated Press reported.

Casey's is also in talks with 7-Eleven, which earlier made an offer to acquire the company at $40 per share.

S.A.C has made a 13D filing with the SEC, signifying activist intent. The stock is down 0.4% at $42.67

-- Written by Shanthi Venkataraman in New York

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