The maker of J2O and Tango said it expects to complete the transaction later this year.
Revenue rose 2.6% to £369.8mln in the three months to 31 December, with management "confident" of achieving market expectations for the year.
The company has also signed a £400mln revolving credit facility expiring in 2025 linked to sustainability targets.
Once these goals are reached, they will reduce the margin to be paid to the lender, which will be donated to agreed charities.
Shares rose 3% to 902p on Friday morning.