Form 990-PF for tax year 2024

Totals

Total revenue

$180,688,400

Total expenses

$72,202,296

Contributions and grants received

— not reported

Contributions, gifts and grants paid

$57,900,248

Fair market value of assets, end of year

$1,380,464,618

Listed in Part VIII

Compensation is as filed in Part VIII of the Form 990-PF: compensation, contributions to benefit plans, expense account, 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.

Grants paid on this return

Grants paid, cash basis (Part I, line 25, column (d))

$57,950,248

As filed, and sometimes filed as 0.

Grants paid, Part XV total (line 3a)

$57,950,248

The foundation's own total of the grants it itemizes.

These are the grants the foundation paid during the year. The “Contributions, gifts and grants paid” total above is the figure on the foundation's books. This return marks the accrual method, under which a grant is recorded when the foundation commits to it rather than when it pays, so the books total need not agree with the cash figures in this section: a grant promised one year and paid in another is counted in different years.

• ARTSFUND

  $10,422,623

  SEATTLE, WA

  TO SUPPORT THE COMMUNITY ACCELERATOR GRANT RENEWAL FOR THE SECOND YEAR OF PROGRAM ADMINISTRATION.

• CHILDRENS HOSPITAL CORPORATION

  $2,500,000

  BOSTON, MA

  TO SUPPORT THE ALLEN DISCOVERY CENTER FOR HUMAN BRAIN EVOLUTION AT BOSTON CHILDREN'S HOSPITAL AND HARVARD MEDICAL SCHOOL

• ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI

  $2,500,000

  NEW YORK, NY

  TO SUPPORT THE ALLEN DISCOVERY CENTER FOR NEUROIMMUNE INTERACTIONS

• REGENTS OF THE UNIVERSITY OF CALIFORNIA AT SAN DIEGO

  $2,500,000

  LA JOLLA, CA

  TO SUPPORT THE ALLEN DISCOVERY CENTER FOR NEUROBIOLOGY IN CHANGING ENVIRONMENTS

• UNIVERSITY OF WASHINGTON FOUNDATION

  $2,500,000

  SEATTLE, WA

  TO SUPPORT ALLEN DISCOVERY CENTER FOR CELL LINEAGE TRACING PHASE 2

• NATIONAL GEOGRAPHIC SOCIETY

  $1,763,533

  WASHINGTON, DC

  TO SUPPORT THE SLINGSHOT CHALLENGE

• FRIENDS OF SEATTLE WATERFRONT

  $1,518,612

  SEATTLE, WA

  TO SUPPORT CULTURAL PROGRAMMING AT WATERFRONT PARK

• FLORIDA INTERNATIONAL UNIVERSITY FOUNDATION INC

  $1,435,763

  MIAMI, FL

  TO SUPPORT A PROJECT TITLED "OPERATION PANGOLIN"

• THE EARTHSHOT PRIZE

  $1,276,100

  LONDON, CITY OF LONDON

  TO SUPPORT THE RENEWAL FOR THE EARTHSHOT PRIZE FOUNDING PARTNERSHIP

• AMERICAN HEART ASSOCIATION INC

  $1,250,000

  SEATTLE, WA

  TO SUPPORT BIOSCIENCE RESEARCH IN RELATION TO ADVANCING OUR UNDERSTANDING OF BRAIN HEALTH AND COGNITIVE IMPAIRMENT

The 10 largest to organizations. The API serves every grant row.

Provenance

Return type

form_990_pf

Tax year

2024

Filed

13 November 2025

IRS schema version

2024v5.2

Source object

202513179349103231

Check it against the return as filed: the GivingTuesday Data Lake hosts a public copy of the original XML.

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