The Macmillan Family Foundation Inc

Private foundation · Grantmaker New York, NY EIN: 48-1286405

The Macmillan Family Foundation Inc. is a private foundation based in New York, NY. Its 2024 filing reports 151 grants totaling $23,288,500 to charitable organizations, including organizations working in genomic research, healthcare, education, the arts, and community philanthropy.

The Macmillan Family Foundation Inc at a glance

In short: The Macmillan Family Foundation Inc gave $23.3M across 151 grants in 2024 (avg $154K), mostly in New York. 32% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$23,288,500
-2.0% vs 2023
Grants made (2024)
151
+19.8% vs 2023
Average grant
$154,228
-18.2% vs 2023
Median grant
$50,000
Total assets
$554,904,342
+17.2% vs 2023
New grantees (estimate)
32% first-time grantees (49 of 151, 2024)
Primary geography
New York (70% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The Macmillan Family Foundation Inc

Accepts unsolicited proposals
No
How to Apply

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

Contact

Mailing address: Co Corient Tax - PO Box 1510, New York, NY 10150
Phone: (212) 583-6001

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who The Macmillan Family Foundation Inc funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

New York Genome Center Inc: $5.0MNew York Genome Center Inc$5.0MColumbia University: $1.6MColumbia University$1.6MInstitute for Advanced Study: $1.1MInstitute for Advanced Study$1.1MPrinceton Healthcare System Foundation: $1.0MPrinceton Healthcare SystemFoundation$1.0MCanadian Institute for Advanced Research: $1.0MCanadian Institute forAdvanced Research$1.0MThe Mark Foundation for Cancer Research: $1.0MThe Mark Foundation for CancerResearch$1.0MChildren's Hospital of Philadelphia Foundation: $575KChildren's Hospital ofPhiladelphia Foundation$575KCenter for Supportive Schools: $500KCenter for Supportive Schools$500KFoundation for Educational Administration: $337KFoundation for EducationalAdministration$337KCentral Park Conservancy: $325KCentral Park Conservancy$325K

The largest 2024 recipient was New York Genome Center Inc ($5.0M). Together the top 10 received $12.4M.

Grant Size Distribution

500 grants across all recorded years

254<$50K85$50–100K100$100–250K27$250–500K9$500K–1M18$1–5M7$5M+

The most common grant size was under $50K: 254 grants of 500 (51%).

Geographic Focus

Where this funder awards grants

In 2024, 70% of grant dollars went to recipients in New York and 20% to recipients in New Jersey. The reported shares also included 3% to Pennsylvania and 1% to North Carolina; 4% was assigned to an unspecified state.

Grant Distribution by State

15states

Share of 2024 grant dollars across all 151 itemized grants.

Cities

New YorkPrincetonTrentonNew BrunswickBrooklynLawrencevillePhiladelphiaBaltimoreBronxQueensSan FranciscoCenter CityDallasFairfieldHightstownMemphisNew LondonPlainsboroProvidenceRockford

Is The Macmillan Family Foundation Inc open to new grantees?

32%

first-time grantees, 2024

In 2024, 49 of 151 grantees (32%) were first-time recipients. First grants averaged $117K; repeat grants $172K. How we count

Medians: $75K first-time, $33K repeat.

  • 56% of 2024 grantees were also funded in 2023. Method
  • Giving grew 44% from 2021 to 2024. Method
  • In 2024 it paid out 88% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$10M$20M$30M63 grants2020 64 grants2021 96 grants2022 126 grants2023 151 grants2024

From 2020 to 2024, annual grant giving ranged from $11.4M (2020) to $23.8M (2023). In 2024 it made 151 grants totaling $23.3M.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
New York Genome Center Inc New York, NYGeneral Purpose$5,000,000
Columbia University New York, NYGeneral Purpose$1,600,000
Institute for Advanced Study Princeton, NJGeneral Purpose$1,075,000
Princeton Healthcare System Foundation Plainsboro, NJGeneral Purpose$1,025,000
Canadian Institute for Advanced Research General Purpose$1,000,000
The Mark Foundation for Cancer Research New York, NYGeneral Purpose$1,000,000
Children's Hospital of Philadelphia Foundation Philadelphia, PAGeneral Purpose$575,000
Center for Supportive Schools Princeton, NJGeneral Purpose$500,000
Foundation for Educational Administration Monroe TWP, NJGeneral Purpose$337,000
Central Park Conservancy New York, NYGeneral Purpose$325,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2024$554,904,342$113,765,590$31,318,999$23,288,500151$24,324,377$40,072,001$27,584,314
2023$473,573,312$82,578,488$30,449,695$23,755,750126$24,650,504$12,731,240$23,983,741
2022$422,513,561$86,191,966$27,951,836$22,100,81096$22,675,436$15,230,345$21,582,540
2021$364,225,478$71,962,610$20,325,600$16,222,00064$16,497,380$24,683,994$20,145,915
2020$313,323,783$55,336,840$14,995,880$11,411,50063—$7,674,346$15,250,116

Under IRS private-foundation payout rules, The Macmillan Family Foundation Inc reported a distributable amount of $27.6M for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated October 2026.

Mission & Focus Areas

The available information does not state the foundation’s own mission. Its 2024 grants include support for organizations whose stated missions include genomic research, theoretical research and intellectual inquiry, healthcare, school improvement, education administration, university education and research, classical ballet training, and community philanthropy.

For example, the New York Genome Center says it operates a genomic research center focused on understanding the genetic basis of disease. The Center for Supportive Schools says it works with schools to develop student leadership, support teacher collaboration, and engage school communities. The School of American Ballet says its mission is to train students for professional careers in classical ballet.

Grantmaking

In filing year 2024, the foundation made 151 grants totaling $23,288,500. Grants ranged from $5,000 to $5,000,000, with a median grant of $50,000. Its largest reported grants included $5,000,000 to New York Genome Center Inc.; $1,600,000 to Columbia University; $1,075,000 to the Institute for Advanced Study; $1,025,000 to Princeton Healthcare System Foundation; and $1,000,000 each to the Canadian Institute for Advanced Research and The Mark Foundation for Cancer Research.

Other reported grants included $575,000 to Children’s Hospital of Philadelphia Foundation; $500,000 to Center for Supportive Schools; $337,000 to Foundation for Educational Administration; and $325,000 each to Central Park Conservancy, Princeton Area Community Foundation, and Rutgers University Foundation.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Duncan Macmillan as chairman, Nancy Macmillan as president and treasurer, Kevin Macmillan as secretary, and Alissa Macmillan as director.

The Macmillan Family Foundation Inc is led by Nancy Macmillan, President & Treasurer on every filing since 2022; none of the 4 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Nancy Macmillan

    President & Treasurer

    On filings since 2022

    15 hrs/week

    No compensation reported

  • Duncan Macmillan

    Chairman

    On filings since 2022

    3 hrs/week

    No compensation reported

  • Alissa Macmillan

    Director

    On filings since 2022

    3 hrs/week

    No compensation reported

  • Kevin Macmillan

    Secretary

    On filings since 2022

    3 hrs/week

    No compensation reported

Former officers (4)
  • Former: Alissa Macmillan Co Geller Adv (2020–2021) — Director
  • Former: Duncan Macmillan Co Geller Adv (2020–2021) — Chairman
  • Former: Kevin Macmillan Co Geller Adv (2020–2021) — Secretary
  • Former: Nancy Macmillan Co Geller Adv (2020–2021) — President & Treasurer

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about The Macmillan Family Foundation Inc

How much does The Macmillan Family Foundation Inc give each year?

The Macmillan Family Foundation Inc gave $23.3M across 151 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $23.8M across 126 grants.

What is The Macmillan Family Foundation Inc's typical grant size?

The Macmillan Family Foundation Inc's median grant in 2024 was $50,000, and its average grant was $154,228, across 151 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from The Macmillan Family Foundation Inc that year got $117K on average.

Where does The Macmillan Family Foundation Inc give grants?

The Macmillan Family Foundation Inc gives mostly in New York: 70% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest state was New Jersey (20%). The most frequent recipient cities were New York, NY (76 grants), Brooklyn, NY (11 grants), Princeton, NJ (10 grants) and Trenton, NJ (7 grants).

Does The Macmillan Family Foundation Inc give general operating support?

Yes: 100% of The Macmillan Family Foundation Inc's 2024 grants with a stated purpose (151 of 151) were for general or operating support, per its 2024 IRS Form 990-PF.

Who are The Macmillan Family Foundation Inc's largest grantees?

The Macmillan Family Foundation Inc's largest 2024 grantees include New York Genome Center Inc ($5,000,000), Columbia University ($1,600,000) and Institute for Advanced Study ($1,075,000), according to its 2024 IRS Form 990-PF. Together they received 33% of its itemized 2024 grant dollars.

How large is The Macmillan Family Foundation Inc?

The Macmillan Family Foundation Inc reported $554.9M in total assets on its 2024 IRS Form 990-PF. It paid out $24.3M in qualifying distributions that year, against a required minimum of $27.6M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does The Macmillan Family Foundation Inc fund?

The available information does not state the foundation’s own mission. See mission & focus areas ↑

How do I apply for a grant from The Macmillan Family Foundation Inc?

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Macmillan Family Foundation Inc's EIN?

The Macmillan Family Foundation Inc's EIN (Employer Identification Number) is 48-1286405. IRS Form 990 filing data is available on this page for 2020–2024.

Does The Macmillan Family Foundation Inc accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

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Cite this profile

Grantable. (2026). The Macmillan Family Foundation Inc funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/the-macmillan-family-foundation-inc-morg_e16cbafaa37a48568ee371a5ee7c2649

BibTeX
@misc{grantable_481286405_2026,
  author       = {{Grantable}},
  title        = {{The Macmillan Family Foundation Inc funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-macmillan-family-foundation-inc-morg_e16cbafaa37a48568ee371a5ee7c2649},
  note         = {Accessed 2026-10-11. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Macmillan Family Foundation Inc's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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