Mr Cooper Group Inc fka COOP

[Civil War General]

The series A and Series B convertible preferred stocks were issued by WMIH to raise money after exiting bankruptcy.
They are not the same as former WMI ‘P’ (R) series preferred that are now known as Escrows, which were issued pre-bankruptcy.

Yes KKR owned pre-bankruptcy securities probably all flavors, just like many of us, but only KKR put up $600 million post bankruptcy to fund WMIHs acquisitions of other companies allowing the NOLs to remain intact.