He is on the books of IBV Vestmannaeyjar and wears shirt number 28. His main role on the pitch is Forward.

His latest transfer saw him join IBV Vestmannaeyjar from KF Framherjar-Smástund via Loan on 2026-01-31.

During the Iceland Besta-deild karla 2025 campaign, Heidmar Thór Magnússon made 2 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.