THQ Inc. said Tuesday that improperly backdated stock options to company executives will cost the videogame developer $11 million, but no wrongdoing was found by an internal probe.

The findings were a result of an internal review of options grants since 1996, the Agoura Hills-based company said in a regulatory filing. However, the company added that it found no evidence of fraud and that most of the grants were made to non-executive employees.

Shares in THQ were up 36 cents to $32.32.