This study examines the drivers behind stock price reactions to announcements of rights issues by firms listed on the Kuwaiti Stock Exchange for the period 2003-2013. We find higher cumulative abnormal returns for firms that undertake larger issues, with the issue size reflecting the availability of favourable investment opportunities and their potential positive impact on firms' earnings. We also document a positive price reaction in firms that are affiliated with a family group. We interpret this as evidence that the proceeds of the rights offering would be employed effectively when the firm is controlled by a family firm. No evidence was found for the price pressure and pricing effects.