An firm bought 6.6% of Informatics General.

The firm, Kellner, DiLeo & Co. of New York, told the Securities and Exchange Commission that it has been buying stock in the Woodland Hills software maker since April 17 in hopes of profiting from Informatics’ potential takeover. Kellner reported that it spent $8.4 million buying 328,800 shares. In April, Informatics rejected a $26-per-share takeover bid by Dallas-based Sterling Software. Informatics chairman Walter Bauer is heading an investor group that hopes to take the company private via a leveraged buy-out and the company has talked to other potential buyers as well.