 Kimco Realty Corp. said Friday that it sold off more than a quarter of its stake in Alberstons Companies Inc. ACI, -7.74 , after Albertsons announced the deal to be acquired by Kroger Co. KR, -5.89 in a deal valued at 24.6 billion. Kimco said it sold 11.5 million Albertsons shares to generate proceeds of about 301.1 million, which implies a sale price of roughly 26.18. 