The group confirmed a market capitalisation of around £1.92bn, following last week’s announcement that it was seeking a value of up to £2bn.
It was priced at 370 pence per share, and in early trading, its shares rose by between 6% and 8%.
Shawbrook said it wanted to raise £50m, and the offer comprised 13-and-a-half million new shares and 80 million existing shares issued by its sole shareholder, Marlin Bidco.
This equated to an offer size of £348m, representing around 18.1% of its share capital.
An additional 14.1 million shares were available by Marlin Bidco.
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Marcelino Castrillo, chief executive of Shawbrook, said: “The strong support we have received from investors across the UK, Europe and the US, reflects the strength of Shawbrook’s proposition and the business we have built. We are proud to be listing in London – our home market – a milestone that positions us well for the opportunities ahead.
“We have built scale across diverse, attractive markets and, following significant investment under private ownership, are well-placed to keep growing as we support UK businesses and households.
“As a listed company, we will continue to invest in our platform and people, deepen our presence in chosen markets and expand selectively where we see attractive demand. Our priorities are clear: keep supporting our customers and deliver sustainable, profitable growth and long-term value for all stakeholders.”