Does insider trading explain price run-up ahead of takeover announcements?

Angelo Aspris, Sean Foley, Alex Frino

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study empirically examines the impact of changes in substantial shareholdings ahead of 450 Australian takeover offers between the years 2000 and 2009. Previous studies have attributed a significant proportion of the price run-up effect in takeover targets to insider-trading behaviour. This study examines the contribution of a broad range of public information sources that are known to typically generate market anticipation, including the acquisition of toeholds ahead of takeover announcements. Our findings show no significant pre-bid run-up for takeover targets after considering these sources. We conclude from these results that previous findings attributing pre-bid share price run-up to illegal insider trading may overstate the existence of such conduct.

Original languageEnglish
Pages (from-to)25-45
Number of pages21
JournalAccounting and Finance
Volume54
Issue number1
DOIs
Publication statusPublished - Mar 2014

Keywords

  • Insider trading
  • Market anticipation
  • Market efficiency
  • Substantial shareholder notices
  • Takeovers
  • Toeholds

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