Hi Marisa,
There is no option for report but you can do one thing:
Go to Customer specific price list --> Items tab --> click Export
As you can get the price list in excel then you can merge it through excel all the price lists.
Thanks & Regards,
Anant Patel
SAP BYD CONSULTANT
Phone: +91-9716100326
Email: anant3113@gmail.com
Skype: anant.3105