Background
He was born in Porsgrunn as a son of Sigurd Langangen (1918–1973) and Lilly Auen (1919–1990).
He was born in Porsgrunn as a son of Sigurd Langangen (1918–1973) and Lilly Auen (1919–1990).
He graduated with the siv.øk.
Degree from the Norwegian School of Economics and Business Administration in 1973, and then took the candidate.jur. degree at the University of Oslo in 1975. He was hired in the same year as a consultant in Statoil, and headed the economy and finance department from 1979. He remained here until 1983.
He was then the deputy chief executive of Storebrand-Norden from 1983, and advanced to chief executive officer in 1985.
From 1986 to 1988 he chaired the Association of Norwegian Insurance Companies. His company merged with University in 1991, creating University Storebrand.
After the Skandia raid in 1991–1992, when University Storebrand bought shares in Skandia without acquiring control over the company, and the shares later plummeted, Langangen was forced to leave Storebrand. He had also been the chair of Statoil from 1987, but left Statoil as well.
In Statoil he had, together with the board, fired the chief executive Arve Johnsen following the Mongstad scandal.
He has later had an engagement in Nordic American Tankers. He has been a minor owner in NorAgra, a company that invested in Lithuanian agriculture. He has also been an owner in Airlift and Helilift.
From 1998 to 2001 Langangen headed the Norwegian Values Commission.
He had become a Christian and stated that his time as a business executive was a "wrong course". He resides in Langangen on a family farm.
He has been the chair of Norwegian Broker and Södertuna Konferensslott Bachelor of Arts, and board member of Knut Axel Ugland Holding.