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Insider trading, news releases and ownership concentration

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Author Info
Fidrmuc, Jana
Goergen, Marc
Renneboog, L.D.R. (Tilburg University, Center for Economic Research)

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Abstract

This paper investigates the market's reaction to UK insider transactions and analyzes whether the reaction depends on the firm's ownership. There are three major findings. First, differences in regulation between the UK and US, in particular the speedier reporting of trades in the UK, may explain the observed larger abnormal returns in the UK. Second, ownership by directors and outside shareholders has an impact on the abnormal returns. Third, it is important to adjust for news released before directors' trades. In particular, trades preceded by news on mergers & acquisitions and CEO replacements contain significantly less information.

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Paper provided by Tilburg University, Center for Economic Research in its series Discussion Paper with number 97.

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Date of creation: 2005
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Handle: RePEc:dgr:kubcen:200597

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Keywords: insider trading;

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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Hans Degryse & Frank de Jong & Jérémie Lefebvre, 2009. "An Empirical Analysis of Legal Insider Trading in the Netherlands," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
    Other versions:
  2. Goergen, M. & Renneboog, L.D.R. & Zhang, C., 2008. "Do UK Institutional Shareholders Monitor their Investee Firms?," Discussion Paper 2008-38, Tilburg University, Center for Economic Research. [Downloadable!]
    Other versions:
  3. Fidrmuc, J.P. & Roosenboom, P.G.J. & Dijk, D.J.C. van, 2007. "When Do Managers Seek Private Equity Backing in Public-to-Private Transactions?," Research Paper ERS-2007-028-F&A Revision, Erasmus Research Institute of Management (ERIM), ERIM is the joint research institute of the Rotterdam School of Management, Erasmus University and the Erasmus School of Economics (ESE) at Erasmus Uni. [Downloadable!]
  4. Andreas Zingg & Sebastian Lang & Daniela Wyttenbach, 2007. "Insider Trading in the Swiss Stock Market," Swiss Journal of Economics and Statistics (SJES), Swiss Society of Economics and Statistics (SSES), vol. 143(III), pages 331-362, September. [Downloadable!]
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