Private equity firm Siris tables $864.6 million bid for UK’s Equiniti

Siris Capital has submitted a non-binding proposal to buy British outsourcer Equiniti for 624.3 million pounds ($864.6 million) in cash, the U.S. equity firm said on Monday, confirming months of media speculation about a bid. Equiniti, shares of which rose by as much a fifth, said it had received a "highly conditional non-binding proposal" from Siris earlier in the day. The 170-pence-per-share bid is Siris' fifth approach to Equiniti, Sky News reported, adding its most recent attempt was in January.