John Catsimatidis
Entrepreneur
1948 · United States
$4.8B as of 2025 · Forbes
John A. Catsimatidis is an American billionaire businessman, radio talk show host, and actor.
Mr. Catsimatidis, CC0, via Wikimedia Commons
Born today · 2026-09-07 UTC
52 notable people share today's birthday, 1 of them sourced billionaire and 8 founders or entrepreneurs. See the full September 7 page.
What the data says
Entrepreneur
1948 · United States
$4.8B as of 2025 · Forbes
John A. Catsimatidis is an American billionaire businessman, radio talk show host, and actor.
Mr. Catsimatidis, CC0, via Wikimedia Commons
Reported estimate with its date; wealth changes and this is not a live figure.
Birthday twins
The most notable of the 52 people we list, ordered by sourced wealth, then documented achievement and coverage.
Musician
1999 · United States
Gracie Madigan Abrams is an American singer and songwriter.
Justin Higuchi, CC BY 2.0, via Wikimedia Commons
Actor
1987 · United States
Evan Rachel Wood is an American actress and singer. She is the recipient of a Critics' Choice Television…
Gage Skidmore, CC BY-SA 2.0, via Wikimedia Commons
Musician
1936–1959 · United States
Charles Hardin Holley, known professionally by his stage name Buddy Holly, was an American singer,…
Buddy_Holly_Brunswick_Records.jpg: Brunswick Records derivative work: GDuwenTell me!, Public domain, via Wikimedia Commons
Inventor
1959 · United States
Drew Weissman is a Nobel Prize winning American physician and immunologist known for his contributions to…
Thorne Media at 0:08 and 0:28, cropped, brightened, CC BY 3.0, via Wikimedia Commons
Scientist
1917–2013 · Australia
Sir John Warcup Cornforth Jr., was an Australian–British chemist who won the Nobel Prize in Chemistry in…
Unknown (Associated Press), Public domain, via Wikimedia Commons
Every date has its own page with billionaires, founders, milestones by age and a rank among all 366 birthdays.
“Today” is the current date in UTC. Counts, ranks and estimates are the same as on the September 7 page and come from the sourced dataset described in the methodology. Wealth figures are dated estimates, not live values.