This paper examines the causes and consequences of hedge fund activism. Hedge funds target profitable and healthy firms, with above-average cash holdings. The target firms earn significantly higher abnormal stock returns around the initial 13D filing date than a sample of control firm. However,...

We examine recent confrontational shareholder activism campaigns by hedge funds and by other private investors. The three main parallels between the groups are a significantly positive market reaction for the target firm around the initial Schedule 13D filing date, a further significant increase...