Häcken announces via its website that this is a record sale for the club.
"We are very happy and proud of this record deal, both in terms of the sum and the dignity of the club we are selling to. It is yet another confirmation that our strategic plan is working," says director of football Martin Ericsson.
According to Danish Tipsbladet, the transfer is worth around 80 million kronor, with add-ons that could bring a further 25 million kronor in bonuses.
Andersen joined Häcken in early 2025 and quickly became a key player. During his time at the club, the 21-year-old also helped them win a cup title.
