With the blossoming of research on corporate social performance (CSP), the data produced by Kinder, Lydenberg, Domini (KLD) have become the standard to measure firms’ social and stakeholder actions. However, to date, only a few studies have focused on examining the data directly, and have done so largely in terms of validating the concepts and methods in the data set’s construction. The present study seeks to complement these efforts by contributing knowledge about what the KLD data report on firms’ actions toward primary and secondary stakeholders, and the dimensions of CSP that firms generally engage in, together or sequentially. With data on 3,073 firms over the period 2000-2010, results show that firms expend more resources on garnering strengths in primary stakeholder dimensions, although this trend is sharply deteriorating to the benefit of secondary stakeholders—notably the natural environment. Results also show that firms generally approach CSP with a mixed behavior, with strengths and concerns in the same dimensions, especially as it pertains to secondary stakeholders. These are the same dimensions in which firms show the longer, more intrinsic commitments, suggesting that secondary stakeholder strengths and concerns may be structural in nature. However, there is also evidence of relationships across dimensions, indicating that firms’ involvement in CSP can generate momentum. The rich implications of these findings are discussed.