Corporate Actions (Name Changes/Mergers/Reorganiza
Post# of 8802
Equity issues (common stock, preferred, rights, etc.) require a new CUSIP based on the type of the corporate action or if the alphabetical sequencing of the issuer has changed.
New CUSIPs may be required for debt issues if the debt is listed with the NYSE and a Supplemental Listing Application is filed with the Exchange to list the debt under the new name.
Reverse Split:
When a reverse split occurs a new CUSIP is issued for the new common stock and the underlying common stock number is suspended when the notice of shareholder approval is received. A new CUSIP is not issued if a forward split takes place, unless there is a mandatory exchange of shares.
https://www.cusip.com/cusip/request-an-identifier.htm