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CHAN ZUCKERBERG BIOHUB INC

EIN 81-1669175 REDWOOD CITY, CA

Revenue 2024
$99,552,025
Expenses 2024
$142,410,025

Program services were 85.3% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
H99
Classification
1000
Street
2682 MIDDLEFIELD RD STE I

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • JOSEPH DERISI

    DIRECTOR, PRESIDENT CZB SF (KEY EMP)

    Total calculated
    $965,995
    From this org
    $904,065
    From related orgs
    $0
    Other
    $61,930
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $640,453
    Bonus
    $260,000
    Other
    $3,612
    Deferred
    $30,500
    Nontaxable benefits
    $31,430
    Filer's total
    $965,995

  • STEPHEN QUAKE

    PRESIDENT & DIRECTOR

    Total calculated
    $303,006
    From this org
    $303,006
    From related orgs
    $0
    Other
    $0
    Hours/week
    10

    Schedule J breakdown matched by us

    Base
    $200,000
    Bonus
    $101,200
    Other
    $1,806
    Deferred
    $0
    Nontaxable benefits
    $0
    Filer's total
    $303,006

  • CORI BARGMANN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2

  • MARK ZUCKERBERG

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2 + 41 related

  • MIKE SCHROEPFER

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2

  • PAUL ALIVISATOS

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2

  • PRISCILLA CHAN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2 + 1 related

  • REID HOFFMAN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2

  • SAM ALTMAN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2

  • SAM HAGWOOD

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2

  • MELINDA GRIFFITH

    SEC (THRU 1/29), COO & COUNS, CZB SF

    Total calculated
    $782,210
    From this org
    $733,051
    From related orgs
    $0
    Other
    $49,159
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $510,912
    Bonus
    $207,100
    Other
    $15,039
    Deferred
    $30,500
    Nontaxable benefits
    $18,659
    Filer's total
    $782,210

  • VICTOR COLUNGA

    CFO & TREASURER (THRU 6/30)

    Total calculated
    $360,630
    From this org
    $316,310
    From related orgs
    $0
    Other
    $44,320
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $221,770
    Bonus
    $89,583
    Other
    $4,957
    Deferred
    $30,500
    Nontaxable benefits
    $13,820
    Filer's total
    $360,630

  • MARC MALANDRO

    COO (FROM 1/29)

    Total calculated
    $0
    Hours/week
    20

  • SANDY YAO

    SECRETARY & CLO (FROM 1/29)

    Total calculated
    $0
    Hours/week
    20

  • BEN ROH

    CFO

    Total calculated
    $0
    Hours/week
    20

  • ANDREA CALIFANO

    PRESIDENT, CZB NY

    Total calculated
    $891,095
    From this org
    $856,238
    From related orgs
    $0
    Other
    $34,857
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $605,894
    Bonus
    $241,200
    Other
    $9,144
    Deferred
    $30,500
    Nontaxable benefits
    $4,357
    Filer's total
    $891,095

  • SHANA KELLEY

    PRESIDENT, CZB CHICAGO

    Total calculated
    $862,254
    From this org
    $818,795
    From related orgs
    $0
    Other
    $43,459
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $582,363
    Bonus
    $234,500
    Other
    $1,932
    Deferred
    $30,500
    Nontaxable benefits
    $12,959
    Filer's total
    $862,254

  • MATTHIAS HAURY

    COO/ACTING EXECUTIVE DIRECTOR, CZII

    Total calculated
    $891,152
    From this org
    $859,154
    From related orgs
    $0
    Other
    $31,998
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $485,915
    Bonus
    $364,395
    Other
    $8,844
    Deferred
    $30,500
    Nontaxable benefits
    $1,498
    Filer's total
    $891,152

  • CLINTON POTTER

    FOUNDING TECHNICAL DIRECTOR, CZII

    Total calculated
    $835,370
    From this org
    $780,004
    From related orgs
    $0
    Other
    $55,366
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $547,636
    Bonus
    $221,700
    Other
    $10,668
    Deferred
    $30,500
    Nontaxable benefits
    $24,866
    Filer's total
    $835,370

  • DAVID ANDREW AGARD

    FOUNDING TECHNICAL DIRECTOR, CZII

    Total calculated
    $832,714
    From this org
    $775,148
    From related orgs
    $0
    Other
    $57,566
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $542,736
    Bonus
    $221,700
    Other
    $10,712
    Deferred
    $30,500
    Nontaxable benefits
    $27,066
    Filer's total
    $832,714

  • BRIDGET CARRAGHER

    FOUNDING TECHNICAL DIRECTOR, CZII

    Total calculated
    $826,440
    From this org
    $782,381
    From related orgs
    $0
    Other
    $44,059
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $550,013
    Bonus
    $221,700
    Other
    $10,668
    Deferred
    $30,500
    Nontaxable benefits
    $13,559
    Filer's total
    $826,440

  • SANDRA L SCHMID

    CHIEF SCIENTIFIC OFFICER, CZB SF

    Total calculated
    $803,625
    From this org
    $759,416
    From related orgs
    $0
    Other
    $44,209
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $527,863
    Bonus
    $220,440
    Other
    $11,113
    Deferred
    $30,500
    Nontaxable benefits
    $13,709
    Filer's total
    $803,625

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $99,552,025
    Expenses
    $142,410,025
    Contributions
    $92,527,253
    Grants paid
    $40,383,291
  • 2023
    Revenue
    $1,290,610,523
    Expenses
    $108,026,488
    Contributions
    $1,284,038,212
    Grants paid
    $32,363,671
  • 2022
    Revenue
    $16,409,981
    Expenses
    $90,813,707
    Contributions
    $14,330,487
    Grants paid
    $29,060,304

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Grants made

The 10 largest by cash amount. The API serves every itemized grant.

Where these grants went next →

Grants received

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2024 return

Declared as related by

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.