Mark Zuckerberg Is America's Richest Entrepreneur Under 40 (Full List)

Number one on this list of youngest by a wide margin is Mark Zuckerberg, whose Facebook shares and net worth soared to new heights. He is now worth $50 billion, up $2.9 billion from a year ago. That’s $40 billion-plus more than the next person, his Facebook cofounder Dustin Moskovitz.

In their place comes a star-studded class of celebrities and athletes. Newcomers to the 2016 ranks include NBA stars Kobe Bryant and LeBron James and boxer Floyd Mayweather as well as pop star Beyonce and actress-turned-consumer products marketer Jessica Alba. The latter are the only two women among the top 40 under 40. All five of these superstars have net worths that range from $275 million to $350 million, meaning they made the cut this year in part thanks to the lower net worth cutoff.

See the full list below...

Rank	Name	Net Worth (in millions)	Source Of Wealth	Age
1	Mark Zuckerberg	50000	Facebook	32
2	Dustin Moskovitz	9600	Facebook	32
3	Garrett Camp	6300	Uber Technologies	38
4	Nathan Blecharczyk	3800	Airbnb	33
4	Brian Chesky	3800	Airbnb	35
4	Joe Gebbia	3800	Airbnb	35
7	Robert Pera	3500	wireless networking gear	38
8	Adam Neumann	2500	WeWork	37
9	Sean Parker	2400	Facebook	37
10	Evan Spiegel	2100	Snapchat	26
11	Bobby Murphy	1800	Snapchat	28
12	Ryan Graves	1600	Uber	33
12	Ben Silbermann	1600	Pinterest	34
14	Bryan Sheffield	1450	oil and gas	38
15	John Collison	1100	Stripe	26
15	Patrick Collison	1100	Stripe	28
15	Kevin Systrom	1100	Instagram	32
18	Orion Hindawi	1000	software	36
18	Drew Houston	1000	Dropbox	33
18	Evan Sharp	1000	Pinterest	33
21	Peter Szulczewski	920	e-commerce	35
22	Palmer Luckey	730	Oculus	24
23	Matt Cohler	670	Facebook, Benchmark	39
24	Adam D'Angelo	600	Quora, Facebook	32
24	Vivek Ramaswamy	600	investments	31
26	Paul Sciarra	550	Pinterest	35
27	Charlie Chanaratsopon	450	Charming Charlie	38
28	Chris Hughes	430	Facebook	33
29	Joe Lonsdale	425	tech investments	34
30	Arash Ferdowsi	400	Dropbox	31
31	Apoorva Mehta	360	Instacart	30
31	Chris Wanstrath	360	collaborative software	31
33	Kobe Bryant	350	basketball	38
34	Jessica Alba	340	online retail	35
34	Floyd Mayweather	340	Boxing	39
36	Tom Preston-Werner	310	collaborative software	37
37	Ryan Smith	300	Qualtrics	38
38	Beyonce Knowles	290	music	35
39	LeBron James	275	Basketball	31
40	Kyle Vogt	270