Kennedy Cabot Acquisition LLC has purchased all validly tendered shares in its offer to acquire all of Siebert Financial Corp.'s outstanding common shares not owned by the estate of Muriel Siebert.

The tender offer, which expired at 5 p.m. ET on Dec. 13, was part of its acquisition deal with Siebert Financial.

American Stock Transfer & Trust Co., the depositary for the offer, informed Kennedy Cabot Acquisition that a total of 677,283 shares were validly tendered as of the expiration time. That number represents about 3.07% of the currently issued and outstanding shares of Siebert Financial.