ex-
prefix
uk/eks-/ us FINANCE
used to mean 'not including', to show that a particular right or advantage belongs to the seller and is not included in the sale or price of an investment:
When a share goes ex-dividend, the purchaser is no longer entitled to receive the company's current dividend.
Compare
cum
used before a job title or relationship to show that someone had that job or relationship in the past but does not have it now:
He ended up suing his ex-boss for unpaid wages.
an ex-colleague
Formal complaints were made against the ex-chairmen and the ex-chief executive.
See also
ex-all
ex-capitalization
ex-coupon
ex-dividend
ex-interest
ex-rights
ex-scrip