This chart shows the share of all contributions given by the top ten donors to each of the 12 largest super PACs, through Jan. 31. Some corporations are affiliated with individual donors, such as the Contran Corporation, which is owned by Harold Simmons. Some donors, such as Sheldon and Miriam Adelson, Yasmin and Oren Lukatz, and Sivan Ochshorn gave individually but are all members of a single family. Hover over each super PAC's name to see the total raised by its top ten donors, and hover over each donor to see how much they gave:

http://projects.propublica.org/pactrack/contributions/tree