Sky News reports that Atom Bank is looking to raise up to £150m through a share sale.
The website refers to sources saying that the bank wants to raise between £50m and £150m to fund its expansion plans some time this autumn.
If the digital bank finds the desired amount it would mean it will have garnered around £600m from shareholders since its launch in 2016.
Atom Bank notably raised £50m in funds back in July last year, at the time saying that it had lent out £2.4bn in total.