Jack Eckerd Corp. said it is not for sale.

The Clearwater, Fla.-based company, which operates more than 1,500 drugstores, said it isn’t for sale and doesn’t welcome “the secret accumulation of stock” by Dart Group. Dart Group owns about 5% of Jack Eckerd stock. Landover, Md.-based Dart said that, between May 21 and May 28, it had purchased 1.884 million shares of Eckerd at between $22.625 and $27.125 a share. In a filing with the SEC, Dart said its board decided at a June 1 meeting “to evaluate the corporation (Jack Eckerd) both as an investment opportunity and with respect to the desirability of acquiring 100%” of its assets or influencing its management.