Meet The Youngest Billionaires On The 2025 Forbes 400

Key Concepts:

Forbes 400, Net Worth, Billionaires under 50, Venture Capital (VC), Sustainability-focused Investment, No-fee Stock Trading App, AI Training Data.

Youngest Billionaires on the 2025 Forbes 400

The Forbes 400 list for 2025 includes 33 billionaires under the age of 50, a rise from 26 in 2024. The average age of billionaires on the list is 70, with some in their 90s. The minimum net worth to be included on the list is $3.8 billion.

1. Mark Zuckerberg

• Age: 41
• Net Worth: $253 billion
• Source of Wealth: Facebook (Meta)
• Details: Zuckerberg founded Facebook (now Meta) in his Harvard dorm at age 19. Meta's shares are up 42% since last year, adding $72 billion to his net worth. In June, he invested $14 billion to acquire 49% of Scale AI and appointed its co-founder as head of Meta's new AI lab.

2. Josh Kushner

• Age: 40
• Net Worth: $5.2 billion
• Source of Wealth: Thrive Capital (Venture Capital)
• Details: Kushner founded Thrive Capital, a VC firm managing over $15.5 billion in assets. Thrive Capital has invested in successful companies like Stripe and OpenAI. He is also connected to a real estate dynasty and is brother-in-law to Ivanka Trump.

3. Lucas Walton

• Age: 38
• Net Worth: $39.8 billion
• Source of Wealth: Inheritance (Walmart)
• Details: Walton inherited about a third of his father John Walton's estate after his death in a 2005 plane crash. He owns stakes in Walmart and Arvest Bank Group (valued at $27 billion) but does not work for either. He founded Builder's Vision, a sustainability-focused investment platform, which has deployed over $3 billion since 2021. He is also a childhood cancer survivor.

4. Vlad Tenev

• Age: 38
• Net Worth: $5.8 billion
• Source of Wealth: Robinhood (No-fee Stock Trading App)
• Details: Tenev is the CEO and co-founder of Robinhood, a no-fee stock trading app, which he started with Bajubat in 2013. Robinhood has 26 million active or funded customer accounts and is encroaching on incumbents like Charles Schwab. Crypto now makes up more than a third of its transaction-based revenue. New products, including credit cards and IAS, are turning Robinhood into a platform to trade anything.

5. Edwin Chen

• Age: 37
• Net Worth: $18 billion
• Source of Wealth: Serge AI (AI Training Data)
• Details: Chen founded Serge AI in 2020 to address the lack of quality training data for AI. The company was bootstrapped without external funding and reached $1 billion in annual revenue in just 5 years. Forbes estimates Serge AI's value at $24 billion, making Chen's 75% ownership stake worth $18 billion.

Conclusion:

The youngest billionaires on the Forbes 400 list have amassed significant wealth through various avenues, including technology (Meta, Robinhood, Serge AI), venture capital (Thrive Capital), and inheritance (Walmart). These individuals demonstrate the potential for wealth creation in diverse sectors, from established tech giants to emerging fields like AI training data and sustainable investment.