Few business stories illustrate the power of equity compensation quite like Steve Ballmer’s. The former Microsoft CEO didn’t found the company—he joined as employee No. 30 in 1980—yet his net worth has climbed past $139 billion, surpassing that of his former boss Bill Gates. Here’s how he built that fortune, what he’s doing now, and why his wealth story is unlike any other.

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Net worth (2025): $139 billion (Bloomberg Billionaires Index) ·
Former role: CEO of Microsoft (2000–2014) ·
NBA team owned: Los Angeles Clippers (purchased 2014 for $2 billion) ·
Microsoft tenure: 1980–2014 (34 years) ·
Current venture: Founder of USAFacts (nonprofit data initiative)

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact details of the NBA’s investigation into the LA Clippers for potential tampering
  • Whether Ballmer will ever surpass Bill Gates in total lifetime charitable giving
  • Future plans for his remaining Microsoft stake
3Timeline signal
4What’s next
  • Resolution of NBA investigation into Clippers
  • Possible further sales of Microsoft shares to fund other ventures
  • Expansion of USAFacts, his nonprofit data transparency project

Six facts that define Steve Ballmer, from his birth to his current wealth:

Label Value
Full name Steven Anthony Ballmer
Born March 24, 1956 (age 69)
Education Harvard University (BA), Stanford Graduate School of Business (MBA)
Net worth $139 billion (2025)
Known for CEO of Microsoft (2000–2014), owner of LA Clippers
Spouse Connie Snyder (m. 1990)

How did Steve Ballmer become so rich?

Microsoft stock and early equity

Ballmer joined Microsoft in 1980 as employee No. 30, according to the Bloomberg Billionaires Index (financial data). Unlike founders Bill Gates and Paul Allen, he did not receive shares upfront — Fortune (business magazine) notes that Ballmer joined without a company share. But his compensation package later included a significant equity stake. When Microsoft went public in 1986, that stake began creating wealth. Bloomberg calculates Ballmer is assumed to still own about 4% of Microsoft and has collected more than $12 billion from dividends and share sales.

The upshot

Ballmer’s fortune is almost entirely a bet on Microsoft’s long-term growth — a bet that paid off because he held on long after most executives would have diversified.

Post-Microsoft investments and the Clippers

After stepping down as CEO in 2014, Ballmer used part of his Microsoft wealth to buy the Los Angeles Clippers for $2 billion — a record purchase price that made him the richest owner in the NBA (Bloomberg Billionaires Index). He sold 14 million Microsoft shares to cover almost one-third of that price. The remaining fortune stayed in Microsoft stock, which continued to appreciate.

Current net worth breakdown

As of 2025, Ballmer’s net worth stands at $139 billion, according to the Bloomberg Billionaires Index. The vast majority comes from his Microsoft stake. He also generated billions through dividends and prior share sales. His ownership of the Clippers, with a franchise value now estimated at $4‑5 billion, adds a smaller slice.

Bottom line: Ballmer is the first person with a net worth of $100 billion or more who made his money as an employee rather than a founder, Fortune reported. For investors, the lesson is the power of staying put in a high-growth company. For employees, equity matters more than starting salary.

Is Steve Ballmer richer than Bill Gates?

Net worth comparison: Ballmer vs Gates

As of 2025, Ballmer’s net worth of $139 billion edges out Gates’ estimated $128 billion, according to the Bloomberg Billionaires Index. Fortune (business magazine) reported in July 2024 that Ballmer became the sixth richest person in the world, surpassing Gates for the first time.

Two billionaires, two different paths — one table shows the contrast:

Metric Steve Ballmer Bill Gates
Net worth (2025) $139 billion $128 billion
Primary wealth source Microsoft equity + dividends Microsoft co-founder + investments
Role at Microsoft CEO (employee #30) Co-founder, former CEO
Philanthropy given Hundreds of millions Over $60 billion via Gates Foundation
Major asset owned LA Clippers ($2B purchase) Cascade Investment portfolio

How each built their wealth

Gates built his fortune as a founder and early shareholder; dilution and massive charitable giving reduced his stake. Ballmer built his as a long-tenured employee whose equity package grew with the company. Investopedia (financial education site) notes that Ballmer is considered the first employee to amass a $100 billion+ fortune.

Philanthropy and spending differences

The gap in giving is stark. Gates has donated more than $60 billion through the Bill & Melinda Gates Foundation. Ballmer has given hundreds of millions but not at that scale. Fortune (business magazine) notes that Ballmer’s net worth surpassed Gates’ in 2024 largely because Gates kept giving away shares. The implication: Ballmer may hold the higher net worth today, but Gates’ philanthropic legacy is far larger.

The catch

Ballmer’s wealth is still overwhelmingly tied to one stock. If Microsoft falters, his net worth could drop faster than Gates’ diversified holdings — a risk the Clippers purchase only partially hedges.

Are Bill Gates and Steve Ballmer still friends?

History of their partnership at Microsoft

Ballmer and Gates worked together for 34 years — Ballmer as employee, then president, then CEO. Britannica (encyclopedia) notes that Ballmer succeeded Gates as CEO in 2000 and served until 2014. Their working relationship was famously intense, with loud arguments but mutual respect.

Post-Microsoft relationship

After Ballmer stepped down,