White knight
White knight --
White knight is a term used with reference to a hostile takeover defense whereby a "friendly" individual (or a "friendly" company) acquires a corporation at fair consideration when it is on the verge of being taken over by an "unfriendly" bidder or acquirer.
In other words -- a person or company making an acceptable counteroffer for a company facing a hostile takeover bid.
Although the target company doesn't remain independent, acquisition by a
white knight is still preferred to the hostile takeover.