AKTAS, Nihat; DE BODT, Eric; VAN OPPENS, Hervé - Center for Operations Research and Econometrics (CORE), … - 2007
Does legal insider trading contribute to market efficiency? Using the refinement proposed by the recent microstructure … literature, we analyze the information content of legal insider trading. Our sample encompasses 2,110 different companies subject … abnormal returns to insider trading activities. (ii) The univariate analysis of stock prices on insider net purchase and net …