Initial public offering (IPO) underpricing is positively correlated with managerial confidence. We hypothesize that highly overconfident managers, who tend to overvalue their own firm, use underpricing to signal their beliefs to the market in an effort to receive greater value for their shares...

We test a number of hypotheses to assess changes in director ownership during lockup periods. We find that these transactions are additional signalling devices. Our results also imply that they are contractual arrangements between directors and underwriters, as directors increase their holdings...