Mark Zuckerberg vs Seo Jung-jin: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus Seo Jung-jin's $9.86 billion — a gap of $199.9 billion, or 21 times as much (as of November 7, 2026).

Mark Zuckerberg
Source of wealth: Facebook
$209.7B
Seo Jung-jin
Source of wealth: Biotech
$9.86B
Made since you opened this page: $0.00
Side-by-side
| Mark Zuckerberg | Seo Jung-jin | |
|---|---|---|
| Net worth | $209.7B | $9.86B |
| World rank | #5 | #360 |
| Makes per second | −$124 | $54.53 |
| Makes per day | −$10.69M | $4.71M |
| Today | +$1.72B | −$197.5M |
| Source of wealth | Biotech | |
| Age | 42 | 69 |
| Country | United States | South Korea |
Net worth by year
| Year | Mark Zuckerberg | Seo Jung-jin |
|---|---|---|
| 2026 | $222B | $9.9B |
| 2025 | $216B | $7.1B |
| 2024 | $177B | $7.3B |
| 2023 | $64.4B | $5.6B |
| 2022 | $67.3B | $7B |
| 2021 | $97B | $14.2B |
| 2020 | $54.7B | $6.1B |
| 2019 | $62.3B | $8.1B |
| 2018 | $71B | $11.9B |
| 2017 | $56B | $2.2B |
| 2016 | $44.6B | $1.9B |
| 2015 | $33.4B | $1.2B |
Frequently asked questions
Who is richer, Mark Zuckerberg or Seo Jung-jin?
Mark Zuckerberg is richer, worth $209.7 billion compared with Seo Jung-jin's $9.86 billion. The difference is $199.9 billion.
Who makes more per second, Mark Zuckerberg or Seo Jung-jin?
Seo Jung-jin makes more: about $54.53 per second versus −$124. Per day that's $4.71M vs −$10.69M.
How many times richer is Mark Zuckerberg than Seo Jung-jin?
Mark Zuckerberg has about 21 times Seo Jung-jin's net worth.