I received a notification but I cannot confirm this corporate action in the news.

ACCESS CORPORATE ACTION MANAGER

IBKR provides information to account holders on upcoming voluntary corporate actions within Client Portal. If you have been sent a notification regarding an open voluntary corporate action, use the button above or follow the below procedure to submit your election in the Corporate Action Manager:…

Clients may obtain information on both mandatory and voluntary corporate actions from the Investor Relations department of the company involved.

In the event a voluntary corporate action is open for elections, IBKR will, on a best efforts basis, provide a summary of the offer along with the ability for clients to submit their election. In the event of a mandatory corporate action, IBKR will provide general notification of the action, but clients should contact the company directly for details…

IBKR will send notification to clients regarding both mandatory and voluntary corporate actions. An issue change notification generally relates to a change in the underlying identifier of the issue, i.e. ISIN or cusip.

Information regarding IBKR's policy on corporate action notifications may be found…

No, IBKR does not accept default or standing instructions from clients with respect to voluntary corporate actions. Client will be notified on a best efforts only basis of upcoming voluntary corporate action offers on positions held. Clients will then have an opportunity to review a summary of the offer and submit an election on-line…