Wm Symposia Inc logo

Wm Symposia Inc

501(c)(4) organization Tempe, AZ EIN: 86-0709487 Website

Develop an understanding of the nuclear environment.

Wm Symposia Inc at a glance

In short: Wm Symposia Inc gave $280K across 3 grants in 2025 (avg $93K), mostly in Arizona. Source: 2025 IRS Form 990.

Annual giving (2025)
$280,000
+40.0% vs 2024
Grants made (2025)
3
+50.0% vs 2024
Average grant
$93,333
-6.7% vs 2024
Median grant
$10,000
Total assets
$8,913,322
+26.1% vs 2024
Primary geography
Arizona (96% of itemized 2025 grant dollars)
Latest 990 filing
Form 990, 2025 View filing

Data from IRS Form 990, 2025; updated September 2026.

Who Wm Symposia Inc funds

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2025

The Roy G Post Foundation: $260KThe Roy G Post Foundation$260KLaw College Association of the U of a: $10KLaw College Association of theU of a$10KOak Ridge Associated Universities: $10KOak Ridge AssociatedUniversities$10K

The largest 2025 recipient was The Roy G Post Foundation ($260K). Together the top 3 received $280K.

Grant Size Distribution

18 grants across all recorded years

13<$50K2$50–100K2$100–250K1$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 13 grants of 18 (72%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

6states

Share of 2025 grant dollars across all 3 itemized grants.

Cities

TucsonTempeMiamaLa Grange ParkGanadoKennewickLos AlamosOak RidgeRichlandSpokane

How Wm Symposia Inc gives

  • Giving grew 147% from 2022 to 2025. Method

From the foundation's IRS Form 990 filings. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K4 grants2019 5 grants2020 8 grants2021 3 grants2022 2 grants2023 2 grants2024 3 grants2025

From 2019 to 2025, annual grant giving ranged from $55K (2019) to $280K (2025). In 2025 it made 3 grants totaling $280K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
The Roy G Post Foundation Tempe, AZEducation$260,000
Law College Association of the U of a Tucson, AZEducation$10,000
Oak Ridge Associated Universities Oak Ridge, TNEducation$10,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsNet Investment Income
2025$8,913,322$6,079,111$4,352,874$280,0003$275,311
2024$7,066,527$5,862,959$4,199,744$200,0002$184,765
2023$5,151,279$4,750,490$3,687,884$140,0002$131,162
2022$3,837,668$3,736,137$2,905,004$113,5003$67,725
2021$3,410,011$1,097,058$1,355,099$135,0008$118,725
2020$3,378,261$3,261,897$3,179,578$85,0005$33,566
2019$3,496,381$3,544,608$3,016,715$55,0004$38,307

About Wm Symposia Inc

Based on IRS filings

Wm Symposia Inc is a public charity, based in Tempe, AZ. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $8.9M in total assets. In 2025, it awarded 3 grants totaling $280K. Net investment income was $275K.

Leadership & Key People

Officers and directors from IRS filings

Wm Symposia Inc is led by Susan Stiger, President since 2023 (on filings since 2019); 2 of 20 officers listed in 2025 are compensated.

Officers on the 2025 filing

  • Susan Stiger

    President

    Director → President, 2023

    On filings since 2019

    4 hrs/week

    No compensation reported

  • Greg Meyer

    Chair

    Director → Chair, 2025

    On filings since 2019

    4 hrs/week

    No compensation reported

  • Susan Walter

    Managing Director

    On filings since 2021

    40 hrs/week

    $54K (2021) → $279K (2025)

  • Robert Weiler

    Director

    Director → Interim Managing Director, 2021

    Interim Managing Director → Director, 2022

    On filings since 2019

    2 hrs/week

    $38K (2021) → $0 (2025)

  • Maurya Palmer

    Conference Director

    On filings since 2024

    40 hrs/week

    $112K (2024) → $119K (2025)

  • Billy Morrison

    Director

    On filings since 2019

    2 hrs/week

    No compensation reported

  • Bob Cochran

    Director

    On filings since 2019

    2 hrs/week

    No compensation reported

  • John Longenecker

    Director

    On filings since 2019

    2 hrs/week

    No compensation reported

  • Kazuhiro Suzuki

    Director

    On filings since 2019

    2 hrs/week

    No compensation reported

  • Larry Camper

    Director

    On filings since 2019

    2 hrs/week

    No compensation reported

  • Olaf Oldiges

    Director

    On filings since 2019

    2 hrs/week

    No compensation reported

  • Linda Kobel

    Director

    On filings since 2020

    2 hrs/week

    No compensation reported

  • Sandra Fairchild

    Director

    On filings since 2020

    2 hrs/week

    No compensation reported

  • Cathy Hickey

    Director

    On filings since 2024

    2 hrs/week

    No compensation reported

  • Craig Michaluk

    Director

    On filings since 2024

    2 hrs/week

    No compensation reported

  • Kapila Fernando

    Director

    On filings since 2024

    2 hrs/week

    No compensation reported

  • Kristen Ellis

    Director

    On filings since 2024

    2 hrs/week

    No compensation reported

  • Wes Hines

    Director

    On filings since 2024

    2 hrs/week

    No compensation reported

  • John Mathieson

    Secretary

    On filings since 2019

    4 hrs/week

    No compensation reported

  • Loong Yong

    Treasurer

    Director → Treasurer, 2020

    On filings since 2019

    2 hrs/week

    No compensation reported

Former officers (18)
  • Former: Gary Benda (2019–2024) — Deputy Managing Director
  • Former: Pat Reckers (2019–2024) — CFO
  • Former: Angie Jones (2019–2023) — Director
  • Former: Fred E. Sheil (2019–2023) — Director
  • Former: George Dials (2019–2023) — Director
  • Former: James Fiore (2019–2023) — Director
  • Former: James Gallagher (2019–2023) — Chairman of the Board
  • Former: Kurt Gerdes (2019–2023) — Director
  • Former: Heatherly Dukes (2020–2023) — Director
  • Former: Jacqueline Quintyne (2023) — Conference Manager
  • Former: Jan Carlin (2019–2021) — Managing Director
  • Former: James Glasgow (2019–2020) — Director
  • Former: Lance Mezga (2019–2020) — Director
  • Former: Sue J. Mitchell (2019–2020) — Director
  • Former: Iris Muhm (2019) — Director
  • Former: Lawrence Harmon (2019) — Director
  • Former: Stephen Kadner (2019) — Treasurer
  • Former: Wendy Doolittle (2019) — Director

Data from IRS Form 990 filings, 2019–2025. "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

Susan Walter — Managing Director: $279KSusan WalterManaging Director$279KMaurya Palmer — Conference Director: $119KMaurya PalmerConference Director$119K

The highest reported compensation on the 2025 filing was $279K, to Susan Walter (Managing Director). 2 officers or directors reported compensation on that filing.

Frequently asked questions about Wm Symposia Inc

How much does Wm Symposia Inc give each year?

Wm Symposia Inc gave $280K across 3 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $200K across 2 grants.

What is Wm Symposia Inc's typical grant size?

Wm Symposia Inc's median grant in 2025 was $10,000, and its average grant was $93,333, across 3 grants on its 2025 IRS Form 990.

Where does Wm Symposia Inc give grants?

Wm Symposia Inc gives mostly in Arizona: 96% of the grant dollars itemized on its 2025 IRS Form 990 went to recipients there.

Does Wm Symposia Inc give general operating support?

Not in 2025: none of the 3 grants with a stated purpose on Wm Symposia Inc's 2025 IRS Form 990 were described as general or operating support. Recurring purposes include "Education" (3 grants).

How large is Wm Symposia Inc?

Wm Symposia Inc reported $8.9M in total assets on its 2025 IRS Form 990. Its revenue that year was $6.1M.

What is Wm Symposia Inc's EIN?

Wm Symposia Inc's EIN (Employer Identification Number) is 86-0709487. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated September 2026. Sourced from IRS Form 990 filings.

Data update history

(7)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2024 (received by the IRS May 14, 2025)
  2. Updated Form 990 for fiscal year 2025 (received by the IRS June 17, 2026)
  3. Added Form 990 for fiscal year 2019 (received by the IRS July 10, 2020)
  4. Updated Form 990 for fiscal year 2020 (received by the IRS May 12, 2021)
  5. Updated Form 990 for fiscal year 2021 (received by the IRS April 30, 2022)
  6. Updated Form 990 for fiscal year 2022 (received by the IRS May 12, 2023)
  7. Updated Form 990 for fiscal year 2023 (received by the IRS May 14, 2024)

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Wm Symposia 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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