Rosen Law Firm said it is investigating potential civil securities claims on behalf of investors in BlackRock, Inc. mutual funds over allegations that the company may have issued materially misleading business information to the investing public. The firm said it is preparing a class action seeking recovery of investor losses and that eligible investors may participate through a contingency fee arrangement without paying out-of-pocket fees or costs. Investors were directed to join through the firm's case page or contact Phillip Kim, Esq. by phone or email.