Vikram Pandit, who stepped down yesterday as Citigroup Inc.’s chief executive officer, stands to forfeit almost $33 million in cash and stock from a retention package unless the board gives him a payout to ease his exit.

Citigroup formulated a plan last year that, based on the firm’s performance so far, would have given Pandit $19 million through a profit-sharing agreement, deferred stock now valued at $9 million and $4.6 million in options, according to the terms of a May 2011 regulatory filing and data compiled by Bloomberg. The plan required Pandit, 55, to be employed at the bank through various payment dates, most of which haven’t been reached.