Forbes named a 104-year-old California insurance man the world’s oldest billionaire in March 2026. He died in August, and nobody has been crowned in his place since.
Forbes put the average billionaire’s age at 65 in its 2026 list; George Joseph was thirty-nine years past that, and still holding a title at the company he founded.
A word on method, because the numbers here move. Everyone below is ranked by age, not by fortune. Forbes’ 2026 World’s Billionaires List used stock prices and exchange rates from 1 March 2026, which means every figure derived from it is a photograph rather than a bank balance. Where a number comes from a third-party wealth tracker rather than Forbes or Bloomberg, it is labelled as such, because those sites estimate from filings and other people’s lists. Nothing here has been rounded up for effect, and where sources disagree, the disagreement is printed rather than resolved.
104
George Joseph was born on 11 September 1921 in Beckley, West Virginia, the son of Lebanese immigrants. His father worked as a coal miner and storekeeper. Forbes’ 2026 list, published in mid-March, named him the oldest billionaire on it, having celebrated his 104th birthday the previous September.
He founded Mercury General in 1961, sold its first policy the following year and ran it as chief executive for 45 years before stepping down in 2006. He then took the title of executive chairman and kept it, without interruption, for the next twenty years. He died in Los Angeles on 26 August 2026, aged 104, still holding the job. Insurance Business reported the board’s response the same day. A career of more than seventy years, ended by biology rather than by a proxy fight.
$2.6bn
That is what Forbes estimated Joseph’s fortune to be at the time of his death, as reported by the Edinburg Post. It is not the only figure in circulation. Wikipedia’s infobox, citing Forbes, carried an estimated $2.5bn as of January 2026. Various third-party trackers put him between $2.7bn and $2.9bn at different points across the same year, depending on which day’s Mercury share price they had scraped.
None of those trackers is a primary source. They aggregate from SEC filings and from Forbes itself, then present the result with a decimal point and an air of finality. The honest version of the sentence is that George Joseph was worth somewhere in the region of two and a half to three billion dollars, and that the region moved every time the market opened.
35%
One real-time tracker, the only source in this research to give an exact percentage, put Joseph’s holding at 35 per cent of the publicly traded insurer. The figure is derived from filings and is a point-in-time estimate, not a fixed possession; stakes of that kind drift with every disposal, grant and trust transfer.
What the percentage does explain is why a man of 104 still had a title. Mercury General became one of California’s largest property and casualty carriers, writing automotive, home and fire cover. Joseph did not build a holding company or a family office with a Cayman postbox. He built one insurer, in one state, in one line of business, and then declined to leave the room.
61
Gabriel Tirador’s age, and the more interesting number in the succession. On Joseph’s death the Mercury board appointed him chairman, effective immediately, according to Insurance Business. He has served as chief executive since 2007 and remains in that role, which makes him both chairman and CEO of a company he did not found and does not own outright.
Joseph had five children. The chair went sideways, to the professional manager who had already been running the place for nineteen years while the founder held the gavel. Reporting on the family’s continuing role at Mercury was still unsettled at the time of writing, and estate matters after a death this recent should be treated as evolving.
102
Robert Kuok was born Kuok Hock Nien on 6 October 1923 in Johor Bahru, in what was then British Malaya, and educated at Raffles Institution. He is 102. He founded Shangri-La Hotels and Resorts in Singapore in 1971 and remains its chairman.
He is the most obvious next-oldest name in current billionaire data, and he has not been crowned. No source found in this research, including Forbes, explicitly names Kuok as the world’s oldest living billionaire following Joseph’s death. The title, for now, sits in the gap between one man’s obituary and the next annual list. Titles of this sort are administered, not inherited.
$13.6bn
The figure for Kuok’s fortune as of April 2026, per factsanddetails.com citing Forbes and the South China Morning Post. The tracker iconicbillionaires.com carried $13.1bn, a global rank of 244 and a country rank of 1, worth as of 4 May 2026; it is a secondary estimate rather than a Forbes number. Bloomberg’s billionaires index, which lists him as Malaysian and aged 102, recorded a year-to-date change of plus $1.51bn, or 7.1 per cent, as of 15 August 2026.
There is one considerably larger number floating around, and it needs handling with tongs. Caproasia reported a $22bn figure in connection with PPB Group, the Kuala Lumpur-listed agriculture conglomerate that is Kuok’s biggest holding according to Bloomberg. That figure appears to describe the company’s own scale rather than his personal net worth, and the two should not be conflated. Bloomberg also lists his stakes in Wilmar International, the world’s largest palm-oil refiner, along with the property developer Kerry Properties and the hotel operator Shangri-La Asia.
8
Kuok’s children, and the reason his succession looks nothing like Mercury’s. He was married to Joyce Cheah, who died, and to Pauline Ho Poh Lin. The board seats have been filling steadily.
His eldest son, Beau Kuok, is chairman of the Kuok Group. His youngest son, Kuok Khoon Hua, is chairman and chief executive of the Hong Kong property company Kerry Properties. His daughter Kuok Hui Kwong was named chief executive of Shangri-La Asia in July, as reported by WorldofBuzz. Wilmar is run by Kuok Khoon Hong, a first cousin once removed. In April 2026, according to Caproasia, his grandson Kuok Meng Xiong, 44, managing director of Kuok Family Investment Group, joined the PPB Group board as a non-executive director.
Four generations of the same surname on the mastheads of a hotel group, a palm-oil refiner, a property developer and an agriculture conglomerate. The patriarch is 102 and still chairman of the hotels.
3,428
The size of the 2026 Forbes list, which is where both men’s rankings live.
> a record 3,428 entrepreneurs, investors and heirs make this year’s World’s Billionaires list, 400 more than in 2025
Their combined wealth stands at a record $20.1 trillion, per the same Forbes tally. The average age fell to 65 from 66 the year before, which is the sort of statistic that gets read as a story about young founders and is mostly a story about arithmetic: add 400 new names to a list and the mean follows them. We counted the other end of that distribution earlier this year, 35 heirs and self-made founders under 30 worth $92.4bn between them. At the top of the age column, the population is far smaller and the succession questions are far more expensive.
The oldest cohort also skews towards founders rather than heirs, for a structural reason. An heir’s fortune is transferred on a schedule set by lawyers. A founder’s is transferred when he stops.
103
Robert Kuok turns 103 on 6 October 2026. That is the date the obvious follow-up question runs into.
Who is the world’s oldest billionaire now? Strictly, nobody, because the designation is not an office. It is a line in one magazine’s annual facts-and-figures piece, assigned once a year against a fixed pricing date, and the man who held it for the 2026 cycle died in August. Forbes will reprice the entire list against a new snapshot date and publish again in March. Until then, Kuok is the leading candidate by age and the only centenarian named in current billionaire data with a verified fortune from a named source, but he has not been given the title by Forbes or by any major outlet in this research, and calling him the holder would be a guess dressed as a fact.
The estate side will take longer than the ranking. Mercury General has a new chairman who is also its chief executive, aged 61, and a founder’s stake whose exact size was last publicly estimated at 35 per cent by a single tracker.
The list can be updated in March. The 35 per cent cannot.
