The U.S. Securities and Exchange Commission (search) has named eight more defendants in a case involving alleged insider trading in Reebok International Ltd (RBK) share options, an SEC attorney said Thursday.

"We have named eight additional defendants today," SEC attorney David Rosenfeld told Reuters at the U.S. District Court for the Southern District of New York.

The SEC on Aug. 5 froze the online brokerage account of a retired Croatian woman, Sonja Anticevic (search), and accused her of insider trading in Reebok options ahead of news the sports gear maker would be acquired by rival Adidas-Salomon AG (search).

Sources close to the case earlier this week said the SEC was looking into whether the online account may have been set up in Anticevic's name to hide trades.

The eight defendants added to the case include Henry Siegel; Monika Vujovic; Elvis Santana; Zoran Sormaz; Perica Lopandic; Ilija Borac; unknown persons trading in the account of an Austrian bank; and David Pajcin, nephew of Anticevic, according to a court filing.

An SEC spokesman said further details were not immediately available.