The Klingenstein Third Generation Foundation

Private foundation · Grantmaker New York, NY EIN: 13-3732439
EducationGraduate and professional educationMedical educationHealthDiseases and conditions

The Klingenstein Third Generation Foundation is a private foundation based in New York, New York. It supports research on ADHD and depression in children and adolescents through fellowship programs, and its 2025 grants went to universities, hospitals, and a professional association.

The Klingenstein Third Generation Foundation at a glance

In short: The Klingenstein Third Generation Foundation gave $788K across 16 grants in 2025 (avg $49K), top state North Carolina. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$788,123
-27.2% vs 2024
Grants made (2025)
16
-23.8% vs 2024
Average grant
$49,258
-4.5% vs 2024
Median grant
$50,000
Total assets
$24,442,659
+181.5% vs 2024
Primary geography
North Carolina (19% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026.

How to apply to The Klingenstein Third Generation Foundation

Accepts unsolicited proposals
No
How to Apply

The foundation states that it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. For the fellowship program, the academic researcher initiates the application process.

Review Cycle
The fellowship program description gives an annual application period of September 1 to December 15.
Deadline
The fellowship program description gives an annual application period of September 1 to December 15.
Contact

Mailing address: 360 Madison Ave 7Th Floor, New York, NY 10017
Phone: (212) 583-1100

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

Who The Klingenstein Third Generation Foundation funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

The University of North Carolina-Chapel Hill: $100KThe University of NorthCarolina-Chapel Hill$100KThe Children's Hospital of Philadelphia: $100KThe Children's Hospital ofPhiladelphia$100KAmerican Academy of Child & Adolescent Psychiatry: $74KAmerican Academy of Child &Adolescent Psychiatry$74KUniversity of Denver: $50KUniversity of Denver$50KState University of Iowa: $50KState University of Iowa$50KDuke University: $50KDuke University$50KSeatle Children's Hospital: $50KSeatle Children's Hospital$50KThe Administrator of the Tulane Educational Fund: $50KThe Administrator of theTulane Educational Fund$50KUniversity of Pittsburgh: $50KUniversity of Pittsburgh$50KThe Trustees of Columbia University in the NYC: $50KThe Trustees of ColumbiaUniversity in the NYC$50K

The largest 2025 recipient was The University of North Carolina-Chapel Hill ($100K). Together the top 10 received $624K.

Organizations only. It also paid 1 grant to individuals ($100,000), which are not listed by name.

Grant Size Distribution

62 grants across all recorded years

32<$50K19$50–100K11$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 32 grants of 62 (52%).

Geographic Focus

Where this funder awards grants

The foundation is based in New York, New York. Its 2025 grant dollars went to recipients in North Carolina (19%), Pennsylvania (19%), Missouri (13%), Washington, DC (10%), and California (7%), among other states.

Grant Distribution by State

21states

Share of 2025 grant dollars across all 16 itemized grants.

Cities

PittsburghNew YorkChicagoWashington DCColumbiaDavisNew OrleansStanfordWashingtonBaltimoreBerkeleyBostonChapel HillIowa CityMinneapolisNashvilleNew HavenPhiladelphiaSeatleSeattle

How The Klingenstein Third Generation Foundation gives

  • 31% of 2025 grantees were also funded in 2024. Method
  • Giving grew 246% from 2022 to 2025. Method
  • In 2025 it paid out 95% 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 (2025). 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$500K$1M$1.5M11 grants2020 15 grants2021 1 grant2022 9 grants2023 21 grants2024 16 grants2025

From 2020 to 2025, annual grant giving ranged from $228K (2022) to $1.1M (2024). In 2025 it made 16 grants totaling $788K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
The University of North Carolina-Chapel Hill Chapel Hill, NCTransformation of Mental Health Care$100,000
1 grant to individuals Recipients not named —$100,000
The Children's Hospital of Philadelphia Philadelphia, PATransformation of Mental Health Care$100,000
American Academy of Child & Adolescent Psychiatry Washington DC, DCAmerican Academy of Child & Adolescent Psychiatry$74,123
University of Denver Denver, COAdhd & Depression Fellowship$50,000
State University of Iowa Iowa City, IAAdhd & Depression Fellowship$50,000
Duke University Durham, NCAdhd & Depression Fellowship$50,000
Seatle Children's Hospital Seatle, WAAdhd & Depression Fellowship$50,000
The Administrator of the Tulane Educational Fund New Orleans, LAAdhd & Depression Fellowship$50,000
University of Pittsburgh Pittsburgh, PAAdhd & Depression Fellowship$50,000
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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
2025$24,442,659$20,493,841$1,283,649$788,12316$1,243,015$457,707$1,305,339
2024$8,683,022$1,017,291$1,400,151$1,083,15021$1,380,954$213,523$476,050
2023$9,066,359$181,400$670,899$309,6509$653,257$100,413$417,095
2022$9,562,667$120,124$492,423$227,9501$393,096$74,432$470,893
2021$9,927,679$4,802,541$550,129$364,50015—$4,735,199$397,878
2020$5,769,444$197,502$559,937$374,93811—$136,737$391,557

Under IRS private-foundation payout rules, The Klingenstein Third Generation Foundation reported a distributable amount of $1.3M for 2025 — the minimum it must pay out in qualifying distributions.

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

Mission & Focus Areas

No mission statement for the foundation is provided. Its fellowship program supports post-doctoral and junior faculty research into the causes, prevention, and treatment of ADHD or depression in children and adolescents, particularly those from low-income families, under-resourced communities, or other minoritized populations with limited supports and resources.

Its 2025 grants included support for the transformation of mental health care and ADHD and depression fellowships. Recipients included universities, hospitals, and a professional association. The American Academy of Child & Adolescent Psychiatry describes its mission as promoting healthy development of children, adolescents, and families through advocacy, education, and research, and meeting the professional needs of child and adolescent psychiatrists. The University of Denver describes its mission as promoting learning through scholarly inquiry, critical and creative thought, and knowledge generation. The University of Pittsburgh describes itself as a public research university serving its region, Pennsylvania, and the nation through education, research, and community partnership.

Grantmaking

In filing year 2025, the foundation reported 16 grants totaling $788,123. Grant amounts ranged from $2,500 to $100,000, with a median of $50,000. The largest grants included $100,000 each to the University of North Carolina–Chapel Hill, an individual recipient, and the Children’s Hospital of Philadelphia, each for the transformation of mental health care. The American Academy of Child & Adolescent Psychiatry received $74,123. Six listed institutions received $50,000 each for ADHD and depression fellowships: the University of Denver, State University of Iowa, Duke University, Seattle Children’s Hospital, the Tulane Educational Fund, and the University of Pittsburgh. Columbia University and the University of California, Davis, also received $50,000 each for ADHD and depression fellowships. Icahn School of Medicine at Mount Sinai received $2,500.

The KTGF Fellowship Programs grant is described as an active program offering up to $100,000 over two years. The program description says the academic researcher must initiate the application and may then invite others to help with the request. It states that the application portal opens annually on September 1 and closes on December 15; those dates are the stated annual cycle, rather than a confirmed 2026 application window.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Andrew Klingenstein as chairman and CEO; Nancy Simpkins as vice president and treasurer; Sarah Martell as trustee and secretary; Kathy Klingenstein as trustee; and Eliot Brenner, PhD, as executive director and trustee.

The Klingenstein Third Generation Foundation is led by Andrew Klingenstein, Chairman & CEO since 2023 (on filings since 2020); 1 of 5 officers listed in 2025 is compensated.

Officers on the 2025 filing

  • Andrew Klingenstein

    Chairman & CEO

    President → Chairman & CEO, 2023

    On filings since 2020

    0.3 hrs/week

    No compensation reported

  • Eliot Brenner Ph D.

    Executive Director & Trustee

    Excecutive Director & Trustee → Executive Director & Trustee, 2024

    On filings since 2023

    4 hrs/week

    $39K (2023) → $71K (2025)

  • Sarah Martell

    Trustee & Secretary

    Director → Trustee, 2023

    Trustee → Trustee & Secretary, 2024

    On filings since 2020

    0.3 hrs/week

    $963 (2020) → $0 (2025)

  • Kathy Klingenstein

    Trustee

    Director → Trustee, 2023

    On filings since 2020

    No compensation reported

  • Nancy Simpkins

    Vice President & Treasurer

    Secretary → Vice President, 2023

    Vice President → Vice President & Treasurer, 2024

    On filings since 2020

    3 hrs/week

    No compensation reported

Former officers (2)
  • Former: Thomas Klingenstein (2020–2023) — Past Treasurer
  • Former: Eliot Brenner (2020–2022) — Trustee

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

Eliot Brenner PH D — Executive Director, Trustee: $71KEliot Brenner PH DExecutive Director, Trustee$71K

The highest reported compensation on the 2025 filing was $71K, to Eliot Brenner PH D (Executive Director, Trustee).

Frequently asked questions about The Klingenstein Third Generation Foundation

How much does The Klingenstein Third Generation Foundation give each year?

The Klingenstein Third Generation Foundation gave $788K across 16 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $1.1M across 21 grants.

What is The Klingenstein Third Generation Foundation's typical grant size?

The Klingenstein Third Generation Foundation's median grant in 2025 was $50,000, and its average grant was $49,258, across 16 grants on its 2025 IRS Form 990-PF.

Where does The Klingenstein Third Generation Foundation give grants?

The Klingenstein Third Generation Foundation's top state is North Carolina, with 19% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Pennsylvania (19%) and Missouri (13%). The most frequent recipient cities were Washington DC, DC (2 grants) and New York, NY (2 grants).

Does The Klingenstein Third Generation Foundation give general operating support?

Not in 2025: none of the 16 grants with a stated purpose on The Klingenstein Third Generation Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Adhd & Depression Fellowship" (8 grants), "Transformation of Mental Health Care" (3 grants) and "Medical School Program" (3 grants).

Who are The Klingenstein Third Generation Foundation's largest grantees?

The Klingenstein Third Generation Foundation's largest 2025 grantees include The University of North Carolina-Chapel Hill ($100,000), The Children's Hospital of Philadelphia ($100,000) and American Academy of Child & Adolescent Psychiatry ($74,123), according to its 2025 IRS Form 990-PF. It also paid 1 grant to individuals ($100,000), which are not listed by name. Together they received 35% of its itemized 2025 grant dollars.

How large is The Klingenstein Third Generation Foundation?

The Klingenstein Third Generation Foundation reported $24.4M in total assets on its 2025 IRS Form 990-PF. It paid out $1.2M in qualifying distributions that year, against a required minimum of $1.3M (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 Klingenstein Third Generation Foundation fund?

No mission statement for the foundation is provided. See mission & focus areas ↑

How do I apply for a grant from The Klingenstein Third Generation Foundation?

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

What is The Klingenstein Third Generation Foundation's EIN?

The Klingenstein Third Generation Foundation's EIN (Employer Identification Number) is 13-3732439. IRS Form 990 filing data is available on this page for 2020–2025.

Does The Klingenstein Third Generation Foundation 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

(2)

When this profile's IRS filing data changed on Grantable

  1. Added Form 990-PF for fiscal year 2025 (received by the IRS August 17, 2026)
  2. IRS filings on file for fiscal years 2020–2024

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Cite this profile

Grantable. (2026). The Klingenstein Third Generation Foundation funder profile. GrantGraph. Retrieved October 30, 2026, from https://grantable.co/funders/the-klingenstein-third-generation-foundation-morg_0030c7affe9e44b5bce538b083d590b1

BibTeX
@misc{grantable_133732439_2026,
  author       = {{Grantable}},
  title        = {{The Klingenstein Third Generation Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-klingenstein-third-generation-foundation-morg_0030c7affe9e44b5bce538b083d590b1},
  note         = {Accessed 2026-10-30. 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 Klingenstein Third Generation Foundation'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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