Disclosure of insider trading are ambiguous pieces of information, as liquidity traders may not assess whether the trades are motivated by significant privileged information related to the true share value. This paper establishes an algorithm, relying on Bayesian inference that represents the...

In this paper, we employ a registry of legal insider trading for Dutch listed firms to investigate the information content of trades by corporate insiders. Using a standard event-study methodology, we examine short-term stock price behavior around trades. We find that purchases are followed by...

This paper finds that the majority of stock price movements remain unexplained after controlling for both public and private information. This suggests that economists' inability to explain asset price movements is the result of either noise or naive asset pricing models.

Previous research remains inconclusive as to whether fluctuations in aggregated insider trading measures can be predictive of wider economic change. This paper contributes toward resolving this contention. Based upon a recent dataset on UK company director's trades in the banking sector, our...

Do insiders trade on private information about earnings? We address this question exploiting the discontinuity in the term structure of option prices around the announcement date, to obtain a daily and forward-looking measure of the informativeness of the next earnings announcement. This measure...

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...

While it is widely acknowledged that companies face increasing cybersecurity risk stemming from hackers stealing customer information, a relatively unknown cybersecurity risk is from information leakage and subsequent trading by digital insiders – hackers who target corporations to obtain...

We present evidence of investors underreacting to the absence of events in financial markets. Routine-based insiders strategically choose to be silent when they possess private information not yet reflected in stock prices. Consistent with our hypothesis, insider silence following routine sell...

This paper investigates the patterns of directors' trades and returns around takeover announcements. We find that the pre-announcement net value (the difference between buy value and sell value) of directors' trading is positively related to acquirers' announcement period abnormal returns. This...

Are high–frequency traders (HFTs) informed? To address this question, we examine HFTs' activity in the call auction environment, where speed-related trading is limited and signal processing capacity becomes more relevant. To model the call market, we consider the Kyle (1989) rational...