Activist investor Nelson Peltz acquires stake in Unilever

LONDON — Trian Fund Management LP, the activist hedge fund run by Nelson Peltz, has acquired a stake in Unilever PLC, according to people familiar with the matter, adding pressure to the packaged food and consumer goods giant in the wake of its failed $68-billion bid for GlaxoSmithKline PLC’s consumer-health business.

The size of the stake couldn’t be learned. Trian started buying Unilever shares well before its bids for the GSK unit surfaced earlier this month, one of the people said.