The rules, known as Regulation Fair Disclosure, prohibit companies from tipping off Wall Street analysts about financial data without making the information public. The article, published in May, said Siebel's shares rose the day after Siebel Chief Financial Officer Ken Goldman spoke to securities analysts and certain investors at the dinner party. The company told CBS MarketWatch that Goldman said nothing that evening that hadn't already been discussed previously in an earnings conference call. Siebel, based in San Mateo, Calif., has been entangled in a similar situation before. Last November, it became the first company to pay a fine involving alleged violations of Regulation Fair Disclosure, which the SEC enacted about three years ago. Under terms of its settlement with the SEC, Siebel paid $250,000, admitted no wrongdoing and pledged not to selectively release information.