Net Worth Comparison

Francisco Jose Riberas Mera vs Mark Zuckerberg

Real-time net worth, career, and company comparison — updated June 2026.

Francisco Jose Riberas Mera

Francisco Jose Riberas Mera

CEO, Steel
Net Worth
$1.637B
+1.25% today
Mark Zuckerberg
Wealthier

Mark Zuckerberg

Net Worth
$207.68B
+$206.0B more than Francisco
+0.40% today

Wealth at a Glance

Francisco Jose Riberas Mera$1.637B
Mark Zuckerberg$207.68B

Net worth gap: $206.0B — equivalent to 99% of Mark's total wealth.

Tale of the Tape

Francisco Jose Riberas Mera
Mark Zuckerberg
$1.637B
Net Worth
$207.68B
#2468
Global Rank
#6
61
Age
41
SPAIN
Country
UNITED STATES
Steel, autoparts
Source of Wealth
Facebook
Metals & Mining
Industry
Technology
Law and Economics and Business Administration from Comillas Pontifical University (ICADE E-3), Madrid
Education
Harvard University (dropped out)
Annual Salary
$0.0M

Career Highlights

Francisco Jose Riberas Mera

  1. 1989
    Began Career at Gonvarri Group
    Started in Business Management, later becoming Director of Corporate Development and CEO.
  2. 1997
    Founded Gestamp Automoción
    Promoted the creation of Gestamp, assuming the role of Executive Chairman and shaping the company.
  3. 2017
    Appointed Executive Chairman of Gestamp
    Became Executive Chairman of Gestamp Automoción.

Mark Zuckerberg

  1. 2004
    Founded Facebook
    Co-founded Facebook while at Harvard University.
  2. 2008
    Became a Billionaire
    Became a billionaire at age 23.
  3. 2012
    Facebook IPO
    Took Facebook public, making it one of the largest IPOs in history.
  4. 2021
    Meta Rebranding
    Facebook rebranded to Meta Platforms, Inc., focusing on the metaverse.

Net Worth History

YearFranciscoMarkLeader
2022$65B
2023$170B
2024$1.4B$224.1BMark
2025$1.7B$222BMark
2026$1.637B$207.68BMark

The Verdict: Mark Zuckerberg vs Francisco Jose Riberas Mera

As of June 2026, Mark Zuckerberg leads this comparison with a net worth of $207.68B, placing at #6 in the global rankings. Francisco Jose Riberas Mera follows at $1.637B — a gap of $206.0B.

The two leaders come from distinct industries — Metals & Mining for Francisco Jose Riberas Mera and Technology for Mark Zuckerberg. Comparing them is therefore a comparison of different underlying asset types, growth rates, and risk profiles rather than a simple head-to-head within the same market.

Francisco Jose Riberas Mera is 61 years old versus 41 for Mark Zuckerberg, a difference of 20 years. Age context matters in wealth comparisons: a younger billionaire at the same net worth has had less time to accumulate — and in many cases represents a higher compound annual growth rate on their wealth.

Net worth figures are estimates calculated from public shareholding disclosures, stock price data, and reported asset values. See our full methodology.