This paper studies how the trade size and the historical sequence of trades affect bid-ask spreads, investors’ trading strategies, and the market maker’s learning process in a multi-period economy. First, we show that there is a nonzero cut-off size below which informed traders never buy or...

Evidence contrasting insider trades in the U.S. between high- and low- jeopardy periods and across firms at high and low risk for 10b-5 litigation indicates insiders condition their trades on foreknowledge of price-relevant public disclosures, but avoid profitable trades when jeopardy due to...