Marc Wallenberg

Wallenberg was born in London, United Kingdom, the eldest son of Swedish banker Marcus Wallenberg (1899–1982) and Dorothy Mackay (1900–1984) from Scotland. He was the brother of Peter Wallenberg (1926–2015) and Ann-Mari Wallenberg (born 1929). Wallenberg passed studentexamen in 1943 and graduated from Harvard Business School in 1949 before bank studies in New York City, Geneva, Paris, London and Düsseldorf from 1949 to 1952, all according to his father's plan.

Wallenberg became deputy director of the family bank Stockholms Enskilda Bank in 1953 and became director and member of its board two years later. In 1956 he became vice CEO and in 1958 he became CEO.

He was a board member of AB Svenska järnvägsverkstäderna, and he became vice chairman of the Swedish Bankers' Association (Svenska Bankföreningen) in 1959 and its chairman in 1961. Wallenberg was appointed by the School of Economics and Business as a member of the Stockholm School of Economics Board of Directors which is Stockholm School of Economics highest executive agency, where he was treasurer from 1965 to 1971. At the time of his death in 1971, Wallenberg was on the boards of 67 companies.

In 1955 he married Olga Wehtje (born 1930), the daughter of director Walter Wehtje and Gurli Bergström. They had four children; Marcus (born 1956), Axel (1958–2011), Mariana (born 1965, married Risberg) and Caroline (born 1968, married Ankarcrona).