These excerpts taken from the C 8-K filed Jun 10, 2009.
Stock Acquisition Date”) of the announcement that a person has become an Acquiring Person (as defined below) and (ii) the close of business on the 10th business day (or such later day as may be designated by Citigroup’s board of directors before any person has become an Acquiring Person (as defined below)) after the date of the commencement of a tender or exchange offer by any person which could, if consummated, result in such person
becoming an Acquiring Person (as defined below). The date that the Rights become exercisable is referred to as the “
Stock Acquisition Date” means the date of the first public announcement (including the filing of a report on Schedule 13D or Schedule 13G under the Exchange Act (or any similar or successor report)) by the Company or an Acquiring Person indicating that an Acquiring Person has become such.