Mark Zuckerberg in Mexico City, 2014
Zuckerberg visiting Mexico City, September 2014. Photograph by the Presidencia de la República Mexicana (CC BY 2.0).

People

Co-founders, family, executives, rivals, critics — the fourteen people who shaped, and were shaped by, the Zuckerberg story.

Living persons. Everyone below is described factually and neutrally. Disputed episodes are attributed, not asserted. Photographs are real, licensed images; where no suitable photo exists, no photo is used.

Priscilla Chan

Zuckerberg’s wife since 2012; they met at Harvard. A pediatrician by training, she co-founded the Chan Zuckerberg Initiative with him and leads its philanthropic strategy. The couple have three children.

Priscilla Chan, 2014

Priscilla Chan in Mexico City, September 2014. Photograph by the Presidencia de la República Mexicana (CC BY 2.0).

Dustin Moskovitz

Co-founder of Facebook and Zuckerberg’s Harvard roommate; handled much of the early technical scaling. He left in 2008 to found the workflow company Asana, and later became a major philanthropic donor alongside his wife Cari Tuna.

Dustin Moskovitz

Dustin Moskovitz. Headshot (CC BY-SA 3.0).

Eduardo Saverin

Co-founder and Facebook’s first business lead and financier. His dilution and departure became one of the founding disputes; he later settled with the company and his co-founder status was publicly acknowledged. He became a billionaire from his retained stake.

Chris Hughes

Co-founder who handled communications and early outreach; left in 2007. He later became publisher of The New Republic and, in 2019, a prominent public critic of Facebook’s scale — writing that the company should be broken up.

Sheryl Sandberg

COO from 2008 to 2022. The former Google executive built Facebook’s advertising business and co-led the company through its most profitable decade. She stepped down in 2022 and left the board in 2024.

Peter Thiel

Facebook’s first outside investor ($500,000 in 2004) and an early board member. His backing gave the young company credibility with the rest of Silicon Valley.

Sean Parker

Napster co-founder who became Facebook’s founding president in 2004–2005, advising Zuckerberg during the move to Palo Alto. Dramatized (and, by accounts, exaggerated) in The Social Network.

Cameron and Tyler Winklevoss

Harvard classmates whose HarvardConnection project led to the founding dispute with Zuckerberg, settled in 2008. They later became early and prominent Bitcoin investors.

Divya Narendra

HarvardConnection co-founder alongside the Winklevosses; party to the same dispute and settlement.

Kevin Systrom and Mike Krieger

Founders of Instagram, acquired by Facebook in 2012. They ran Instagram with unusual autonomy for six years, then departed in 2018 amid reported tensions over integration. (Counted as one entry: a partnership.)

Jan Koum and Brian Acton

Founders of WhatsApp, acquired in 2014. Both eventually left — Acton in 2017, Koum in 2018 — with Acton later publicly criticizing Facebook’s data practices. (Counted as one entry: a partnership.)

Palmer Luckey

Founder of Oculus VR, acquired in 2014. He left Facebook in 2017; his departure followed controversy over political donations, the details of which remain partly disputed.

Edward and Karen Zuckerberg

His parents — a dentist and a psychiatrist from Dobbs Ferry, New York — who supported his early programming and have appeared in profiles describing his childhood.

The critics

A collective entry: the journalists, academics, regulators, and former employees — from early privacy scholars to Frances Haugen, the 2021 whistleblower — whose scrutiny shaped the company’s second decade. Their criticisms are documented on the timeline and assessed neutrally on myth vs. record.

Source notes