AIK have welcomed the prospect of Real Sociedad selling Alexander Isak this summer.
Isak is being watched by Real Madrid, Chelsea and Arsenal at the Euros.
Should the Swede leave La Real for his €70m buyout clause, former club AIK stand to earn €7-8m.
AIK chairman Robert Falck told Fotbol Direkt: "Fantastic. And it is fantastic that he is AIK-educated - it feels good to see him.
"If he is sold on, I can not mention any numbers - but so much I can say that it is about big money.
"He's certainly worth it. But of course it's really huge amounts, that's it. It is a fantastic opportunity for Alexander Isak in particular, but also for AIK."
