Turkey's market regulator filed criminal complaints against dozens of people and imposed trading bans over alleged share-price manipulation by asset managers at the heart of turmoil that's shaken the country's investment fund industry. The Capital Markets Board, in a statement late Wednesday, cited alleged manipulation involving shares of Katilimevim, Gundogdu Gida and Destek Finans Faktoring AS. The regulator filed criminal complaints and two-year trading bans against some fund managers at Pusula Portfoy and Tera Portfoy, according to the statement.