WASHINGTON (Reuters) - Federal securities regulators on Tuesday accused a 17-year-old of making more than $91,000 in profit by manipulating the stock prices of 15 companies, adding to charges filed earlier this year accusing him of running a sports investment scheme. The Securities and Exchange Commission filed the new charges against Cole Bartiromo in New York, alleging he conducted an Internet pump and dump scheme in which he allegedly bought large blocks of shares of small, public companies and then posted false press releases about them. After their stock prices rose on the positive news in the releases, Bartiromo allegedly sold the stock. His scheme, which ran from May 2001 to July 2001, involved about 6,000 online postings and several million shares of at least 15 companies, generating a net profit of more than $91,000, the civil complaint said. Bartiromo's attorney did not immediately return a call seeking comment. Earlier this year, the SEC accused Bartiromo and others of raising over $1 million from more than 1,000 investors in a sports betting scheme that promised to repay investors 125 percent to 2,500 percent of the original investment.