I find strong evidence of insiders selling shares prior to imminent bad earnings news through their Rule 10b5-1 trading plans. While Rule 10b5-1 trading plans may conjure images of regular selling over a sustained period of time, I find that insiders' sales under these plans often consist of a...

We examine corporate insider transactions around Sarbanes-Oxley §403 (SOX) regulatory regimes and subsequent Wall Street Journal (WSJ) media postings — and provide new evidence on the benefit/cost trade-off tension between private information transfer and stock trading costs. SOX increased...

We provide evidence of unreported trading by corporate insiders in their own firm's shares and link this activity to future firm earnings and analyst forecast error. Unreported trading represent discrepancies between insider shareholdings from trades they report to the Exchange and their...

The press has given the public the impression that insider trading is evil, unethical and illegal, when in fact such is not always the case. In some cases, insider trading is beneficial to the economy and to shareholders. Whether insider trading is harmful, unethical or illegal depends on many...

We use observed insider trading data to estimate the start and end points of quarterly open trading windows, and find that voluntary insider trading restrictions reflect concerns about information asymmetry, the strength of external monitoring, and executives’ liquidity needs. We also identify...

We consider Kyle's market order model of insider trading with multiple informed traders and show: if a linear equilibrium exists for two different numbers of informed traders, asset payoff and noise trading are independent and have finite second moments, then these random variables are normally...

The fixing of the Libor and Euribor benchmark rates has proven vulnerable to manipulation. Individual rate-setters may have incentives to fraudulently distort their submissions. For the contributing banks to collectively agree on the direction in which to rig the rate, however, their interests...