regarding some of the WMIH CORP ISIN codes where no info is found, and wy I think these are still active and performing securities, is because every single other ISIN Number that Matured or Liquidated has one other tidbit of information...
...and that tidbit states those few ISIN codes such as US939322AG85 were "Exchanged For Bonds" and then it lists the bond such as "WMIH 5.625 01/15/07 MATd" Matured
One "Exchanged for Bonds" WMIH CORP trading as COOP ISIN NUMBER also has the letters "FRN" before Matured? Indicating an international security?
Interesting stuff....
Some of the "Exchanged for Bonds" dates go out to 2041