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AUM

~$220+ billion (based on 99% of Meta stake pledge)

Principals

5

Principal Net Worth

$222.7B

Founded

CZI (2015), Weststreet (circa 2014)

Data Flags

None - multiple sources confirm key facts (Forbes, Business Insider, CZI official, LinkedIn profiles verified)

Chan Zuckerberg Initiative / West 10 LLC (Weststreet)

Hybrid - Philanthropic LLC (CZI) + Private Family Office (Weststreet/West 10 LLC)High Confidence

- **CZI:** 801 Jefferson Avenue, Redwood City, CA 94063

Last verified: Dec 27, 2025

Details

Phone
Not publicly available
Source of Wealth
Technology (Meta / Facebook)
Assets Under Management
~$220+ billion (based on 99% of Meta stake pledge)
Source File
research/organizations/chan-zuckerberg-initiative.md
UID
fo-chan-zuckerberg-initiative

Also Known As

Chan Zuckerberg InitiativeCZIChan Zuckerberg BiohubWeststreet (family office)West 10 LLC (family office)West Street (family office)Zuckerberg Chan InitiativeKoolau Ranch (Hawaii property)Limitless Specialty Services (security LLC)

Principals (5)

Mark ZuckerbergCo-Founder & Co-CEO, CZI; CEO, Meta PlatformsOWNS
$222.7B
Maxima "Max" Chan Zuckerberg-OWNS
August Chan Zuckerberg-OWNS
Aurelia Chan Zuckerberg-OWNS
Priscilla ChanPediatrician, CZI Co-CEOOWNS

Team Members (10)

Alexander FridmanSVP, Information Technology
WORKS_AT
David LeeChief Investment Officer
WORKS_AT
Joe DeRisiPresident, Biohub SF
WORKS_AT
Lori GolerPresident
WORKS_AT
Marc MalandroChief Operating Officer
WORKS_AT
Mark GundackerHead of People
WORKS_AT
Mark KimGeneral Counsel
WORKS_AT
Mark ZuckerbergCo-Founder & Co-CEO
WORKS_AT
Priscilla ChanCo-Founder & Co-CEO
WORKS_AT
Stephen QuakeHead of Science
WORKS_AT

Related Entities (4)

Chan Zuckerberg BiohubSubsidiary

Biomedical research organization

Chan Zuckerberg Initiative LLCSubsidiary

Primary philanthropic/investment vehicle (founded 2015); 500+ employees

WeststreetSubsidiary

(aka West 10 LLC) - Private family office for household/personal affairs

Weststreet (West 10 LLC)Subsidiary

Private family office for household/personal affairs; ~50 employees

Known Associates (7)

Divesh Makan

ICONIQ Capital

"Consigliere" to Zuckerberg; manages family office operations

Donald Trump

Attended 2025 Inauguration; hosted at White House Sept 2025

Dustin Moskovitz

Facebook co-founder; also ICONIQ client

Jack Dorsey

Twitter founder; ICONIQ client

Peter Thiel

PayPal, Founders Fund

Early Facebook investor; board member

Reid Hoffman

LinkedIn founder

LinkedIn founder; ICONIQ client

Sheryl Sandberg

Former Meta COO; also ICONIQ client

Relationship Strength

Loading relationships...

Sources (3)

Changelog

  • 2025-12-27Expanded Current Team section with comprehensive LinkedIn URLs for all key executives
  • 2025-12-27Added CZI Executive Leadership table: Lori Goler (President), Mark Kim (GC), David Lee (CIO), Mark Gundacker (Head of People), Alexander Fridman (SVP IT)
  • 2025-12-27Added Science Leadership table: Alex Rives (Head of Science), Patricia Brennan, Tom Sercu, Salvatore Candido, Yu "Sandy" Yao, Vivian Wu, Nicole Huber
  • 2025-12-27Added Biohub Network leadership: Scott Fraser (SF), Joe DeRisi (SF), Shana O. Kelley (Chicago), Andrea Califano (NY)
  • 2025-12-27Added Learning Commons leadership: Sandra Liu Huang (President), Kristin Vincent, Dan Quine, Helen Hwang, Raymonde Charles
  • 2025-12-27Added LinkedIn URLs for Weststreet team: Jordan Fox, Brian Mosteller
  • 2025-12-27Verified 30+ LinkedIn profiles across CZI, Biohub, and Weststreet organizations
  • 2025-12-17Major update with West 10 LLC / Weststreet research
  • 2025-12-17Updated net worth to $222.7B (was $209.2B) per Forbes real-time
  • 2025-12-17Updated Forbes 400 rank to #3, Billionaires #2
  • 2025-12-17Added Weststreet LLC structure (Limitless, MPPR Associates, etc.)
  • 2025-12-17Added Weststreet leadership: Jordan Fox (CoS), Shawn Smith, Brian Mosteller
  • 2025-12-17Added comprehensive real estate portfolio ($430M+)
  • 2025-12-17Added Koolau Ranch details: 2,300+ acres, underground bunker, treehouses
  • 2025-12-17Added Hawaii expansion (962 acres, ~$65M, 2025)
  • 2025-12-17Added Washington DC mansion ($23M, March 2025)
  • 2025-12-17Added security costs: $27M (2024)
  • 2025-12-17Added ICONIQ Capital details ($80B AUM, Anthropic funding)
  • 2025-12-17Added CZI 2025 updates: DEI team eliminated, Primary School closing
  • 2025-12-17Added Trump 2025 Inauguration attendance
  • 2025-12-17Added Verification Status section
  • 2025-12-10Initial research file created

Engagement & Preferences