At 80, Maersk's family chief handed the shipping group to its first outsider CEO

Mærsk Mc-Kinney Møller took over the family shipping group A.P. Møller after his father's death in 1965 and led it for 28 years, turning it into the world's largest shipowner and Denmark's biggest company. He had no son to carry on management.

His answer was professional succession. In 1993, at 80, he handed the daily management of the group to Jess Søderberg, the first chief executive from outside the family in the group's 90-year history, and he gave up the chairmanship to Michael Pram Rasmussen in 2003.

Ownership sat with three charitable foundations, which held a majority of the shares. When Møller died in 2012 at 98, the group was already run by professional managers and the foundations, so the succession question had been settled nearly two decades earlier.

The 1993 handover made Jess Søderberg the first non-family CEO; with ownership in family foundations, Maersk kept growing after Møller's death in 2012.

Møller had no family heir willing or ready to run the group.

Handing over at 80 gave the outsider time to prove himself while the founder could still advise.

Foundation ownership kept control stable without a family CEO.

The staged handover (CEO 1993, chairman 2003) avoided a vacuum at death.

When the family has no successor, institutionalize succession: Møller handed management to outsiders before he died and left ownership in foundations, so the group outlived its founder's son.

Maersk continued as one of the world's largest shipping groups with professional management and foundation ownership, and Møller's daughter Ane later became deputy chair. The 1993-2003 handover is the reference case for institutionalizing succession before the founder dies.