From Longman Dictionary of Contemporary Englishinsider tradinginˌsider ˈtrading (also insider dealing) noun [uncountable] BFSthe crime of using secret information that you have about a company, or knowledge of a situation, to buy or sell shares at a profit
Examples from the Corpus
insider trading• Policies directed to widespread public shareholding in companies are therefore likely to be subverted by condoning insider trading.• Despite the recent advent of statute law in this area, there remains no statutory definition of what constitutes insider trading.• However, it was not long before the courts began to use the provision in an attempt to curb insider trading.• The measures included increased fines for insider trading.• The accused face up to two years in prison and fines of up to five million francs for insider trading if convicted.• Milken faced ninety-eight counts of securities violations including insider trading.• Second judge throws out allegations of insider trading.• As the problem of insider trading increased it became increasingly evident that s.16 was insufficient.From Longman Business Dictionaryinsider tradinginˌsider ˈtradingFINANCELAW when someone uses knowledge of a particular company, situation etc that is not available to other people in order to buy or sell shares. Insider trading is illegalShares in both banks jumped 20% two weeks before confirmation of their merger, which led to an insider trading inquiry being opened.Insider trading involves an insider (=someone who works for a particular company) making a profit by using confidential information to buy or sell stock or other securities. By doing this, the insider is guilty of the misappropriation of private information (=dishonestly using it for their own purposes) or a breach of fiduciary duty (=failing to protect the interests of the shareholders whose assets they are managing). In the US, the Securities and Exchange Commission (SEC) is responsible for checking that illegal trading is not taking place. Many different countries have introduced laws to stop insider trading, for example the Financial Services Act and the Markets Act in the UK and the Insider Trading Sanctions Act in the US. → trading 