Society of Interventional Oncology Inc
To advance interventional oncology as the fourth pillar of cancer therapy alongside medical, surgical, and radiation oncology worldwide.
Society of Interventional Oncology Inc at a glance
- Total assets
- $10,052,218
- +0.0% vs 2023
- Revenue (2024)
- $3,751,897
- +0.3% vs 2023
- Net investment income (2024)
- $371,526
- +447.9% vs 2023
- Expenses (2024)
- $4,384,991
- +51.8% vs 2023
- Latest 990 filing
- Form 990, 2024 View filing
Data from IRS Form 990, 2024; updated September 2026.
Who Society of Interventional Oncology Inc funds
How this funder distributes its grants
Grant Size Distribution
4 grants across all recorded years
The most common grant size was in the $100–250K range: 3 grants of 4 (75%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2021, annual grant giving ranged from $5K (2021) to $307K (2020). In 2021 it reported $5K in grants paid, as a total without an itemized list.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| University of Texas Dallas, TX | Research Grant | $100,000 |
| Yale University New Haven, CT | Research Grant | $100,000 |
| Northwestern University Evanston, IL | Research Grant | $100,000 |
| Brigham and Women's Hospital Boston, MA | Research Grant | $7,000 |
Ready to take the next step with Society of Interventional Oncology Inc?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2024 | $10,052,218 | $3,751,897 | $4,384,991 | — | — | $371,526 |
| 2023 | $10,050,985 | $3,740,387 | $2,889,073 | — | — | $67,809 |
| 2022 | $7,644,301 | $2,079,807 | $2,180,026 | — | — | $21,237 |
| 2021 | $7,137,936 | $6,067,876 | $986,567 | $5,000 | Total only | $1,018 |
| 2020 | $2,071,445 | $2,844,272 | $1,812,156 | $307,000 | 4 | $1,060 |
"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.
About Society of Interventional Oncology Inc
Based on IRS filings
Society of Interventional Oncology Inc is a public charity focused on Diseases, Disorders & Medical Disciplines, based in Washington, DC. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $10.1M in total assets. Net investment income was $372K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Society of Interventional Oncology Inc is led by Jena Eberly Stack, Executive Director on every filing since 2020; 3 of 12 officers listed in 2024 are compensated.
Officers on the 2024 filing
Jena Eberly Stack
Executive Director
On filings since 2020
20 hrs/week
No compensation reported
Muneeb Ahmed
President
Board Member → President-Elect, 2021
President-Elect → President, 2024
On filings since 2020
2 hrs/week
No compensation reported
Edward Kim
Board Member
On filings since 2021
1 hr/week
$7K (2024)
Jack Jennings
Treasurer
Board Member → Treasurer, 2024
On filings since 2021
2 hrs/week
$1K (2024)
Terence Gade
Board Member
New on the 2024 filing
1 hr/week
$8K (2024)
Alexis Kelekis
President Elect
Board Member → Treasurer, 2021
Treasurer → President Elect, 2024
On filings since 2020
2 hrs/week
No compensation reported
Uei Pua
Board Member
On filings since 2020
1 hr/week
No compensation reported
Sarah White
Board Member
On filings since 2021
1 hr/week
No compensation reported
David Breen
Board Member
On filings since 2022
1 hr/week
No compensation reported
Franco Orsi
Board Member
On filings since 2023
1 hr/week
No compensation reported
Ron Arellano
Board Member
On filings since 2023
1 hr/week
No compensation reported
Matthew Callstrom
Immediate Past President
New on the 2024 filing
2 hrs/week
No compensation reported
Former officers (13)
- Former: Costi Sofocleous (2020–2023) — Board Member
- Former: Alexis Kelekis Treasurer (2023) — Feb. & Then President Elect · Filing note: Until
- Former: Jack Jennings Board Member (2023)
- Former: Matthew Callstrom President (2023)
- Former: Muneeb Ahmed President Elect (2023)
- Former: Matt Callstrom (2020–2022) — President
- Former: William Rilling (2021–2022) — Past President
- Former: Martijn Maijerick (2021) — Board Member
- Former: Bill Rilling (2020) — President
- Former: Kevin Kim MD (2020) — Board Member
- Former: Nahum Goldberg MD (2020) — Board Member
- Former: Riad Salem (2020) — Treasurer
- Former: Stephen Solomon (2020) — Pass President
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.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $8K, to Terence Gade (Board Member as of January). 3 officers or directors reported compensation on that filing.
Frequently asked questions about Society of Interventional Oncology Inc
How large is Society of Interventional Oncology Inc?
Society of Interventional Oncology Inc reported $10.1M in total assets on its 2024 IRS Form 990. Its revenue that year was $3.8M.
What is Society of Interventional Oncology Inc?
Society of Interventional Oncology Inc is a public charity focused on Diseases, Disorders & Medical Disciplines, based in Washington, DC. It holds $10.1M in total assets as of 2024.
Where does Society of Interventional Oncology Inc operate?
Society of Interventional Oncology Inc has awarded grants in Connecticut, Illinois, Massachusetts, Texas.
What is Society of Interventional Oncology Inc's EIN?
Society of Interventional Oncology Inc's EIN (Employer Identification Number) is 41-2161648. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS November 5, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS October 25, 2022)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Society of Interventional Oncology Inc's focus areas in our free grants database
Similar Funders
Funders with grantees in common, and similar funders in District of Columbia
Partnership for Cures
Chicago, IL
Cures Within Reach leverages the speed, safety and cost-effectiveness of testing approved therapies for new indications/diseases without effective treatment driving more treatments quicker to more patients.
Assets
$7.5M
Grants
7
Total Given
$385K
Freedom Together Foundation
New York, NY
The foundation funds work to strengthen multiracial democracy and build community and worker power, racial and gender justice, movement infrastructure, reproductive health, medical research, and community institutions. In 2024, its grants ranged from $5,000 to $14 million, with a median of $500,000; its largest shares went to organizations in Washington, DC, New York, California, Massachusetts, and Illinois. It funds only preselected organizations and does not accept unsolicited requests.
Assets
$3.4B
Grants
595
Total Given
$470.0M
Universities Research Association Inc
Washington, DC
Universities Research Association supports research, education, and STEM workforce development, with its 2025 institutional grants primarily designated for research. Its 21 grants ranged from $5,059 to $39,243, with a median of $15,176, and went to organizations in multiple states; no geographic preference is stated. The profile does not say whether it accepts unsolicited requests.
Assets
$23.0M
Grants
21
Total Given
$361K
The Annexstad Family Foundation
Alpharetta, GA
The foundation funds undergraduate scholarships for students who have overcome difficult circumstances, providing support through partner colleges and universities across the United States. In 2025, its 54 grants ranged from $2,065 to $1 million, with a median of $43,875. It does not accept unsolicited requests; partner institutions select scholarship recipients.
Assets
$32.6M
Grants
54
Total Given
$3.2M
Ewing Marion Kauffman Foundation
Kansas City, MO
The foundation funds college access and completion, workforce and career development, entrepreneurship, and related efforts to improve economic mobility, with a primary focus on Kansas City and support for regional and national work. Its 2024 grants had a median of $75,000; it accepts requests through its online portal and says it does not limit giving to preselected organizations.
Assets
$2.5B
Grants
364
Total Given
$95.0M
Lupus Foundation of America Inc
Washington, DC
Lupus Foundation of America, inc. (the foundation) is dedicated to improving the quality of life for all people affected by lupus through programs of research, education, support, and advocacy.
Assets
$11.4M
Grants
5
Total Given
$380K
More similar funders
More Funders in District of Columbia
The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open
Figures come from Society of Interventional Oncology 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.
Society of Interventional Oncology Inc down — hundreds of funders to go?