Nonprofit · EIN 52-1867506
OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC
Tax-exempt · MOUNT LAUREL, NJ 08054
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $1,767,697 | $1,827,194 | -$59,497 | $3,531,671 | $763,833 | $2,767,838 |
| December 31, 2024 | 990 | $1,855,604 | $1,986,716 | -$131,112 | $3,465,099 | $911,916 | $2,553,183 |
| December 31, 2023 | 990 | $1,547,647 | $1,539,682 | $7,965 | $3,363,821 | $936,464 | $2,427,357 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $144,038
- Program service revenue
- $1,126,142
- Investment income
- $114,337
- Royalties
- $383,180
- Other revenue
- $383,180
Expenses
- Grants and similar amounts paid
- $54,273
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $3,414
- Accounting fees
- $12,141
- Travel
- $110,257
- Program services (functional)
- $1,305,458
- Management and general (functional)
- $521,736
Balance sheet and other
- Total assets, start of year
- $3,465,099
- Total assets, end of year
- $3,531,671
- Total liabilities, end of year
- $763,833
- Net assets, end of year
- $2,767,838
- Publicly traded securities
- $3,055,287
- Net assets without donor restrictions
- $2,676,900
- Net assets with donor restrictions
- $90,938
- Gross receipts
- $1,767,697
- Employees
- 0
- Volunteers
- 140
- Year formed
- 1994
- State of legal domicile
- MD
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARTIN ENGLUND MD PHD | PRESIDENT Trustee or director, Officer | 7 | $0 |
| GUN IL IM MD PHD | PAST PRESIDENT Trustee or director, Officer | 7 | $0 |
| NANCY LANE | PAST PRESIDENT Trustee or director, Officer | 7 | $0 |
| MAGALI CUCCHIARINI | SECRETARY Trustee or director, Officer | 5 | $0 |
| MOHIT KAPOOR | TREASURER Trustee or director, Officer | 5 | $0 |
| RIK LORIES | DIRECTOR (TIL 4/25) Trustee or director | 5 | $0 |
| ELENA LOSINA | DIRECTOR (TIL 4/25) Trustee or director | 5 | $0 |
| AMANDA NELSON | DIRECTOR Trustee or director | 5 | $0 |
| CRISTINA RUIZ ROMERO | DIRECTOR Trustee or director | 5 | $0 |
| MARTIN VAN DER ESCH | DIRECTOR Trustee or director | 5 | $0 |
| CHUNYI WEN | DIRECTOR Trustee or director | 5 | $0 |
| JEREMIE SELIAM | DIRECTOR Trustee or director | 5 | $0 |
| THOMAS LINK | DIRECTOR Trustee or director | 5 | $0 |
| DON ANDERSON | DIRECTOR Trustee or director | 5 | $0 |
| EIJI SASAKI | DIRECTOR Trustee or director | 5 | $0 |
2 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MATT HARKEY | EARLY CAREER INV CHR(TIL 4/25) Trustee or director | 5 | $0 |
| BROOKE PATTERSON | EARLY CAREER INV CHR(TIL 4/25) Trustee or director | 5 | $0 |
990 for the year ended December 31, 2024: 23 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Gun IL IM MD PHD | Pres, Past Pres (Eff 4/24) Trustee or director, Officer | 7 | $0 |
| Ali Mobasheri DPHIL | Past President (Til 4/24) Trustee or director, Officer | 7 | $0 |
| Martin Englund MD PHD | Pres Elect, Pres (Eff 4/24) Trustee or director, Officer | 7 | $0 |
| Nancy Lane | Treas, Pres Elect (Eff 4/24) Trustee or director, Officer | 7 | $0 |
| Ida K Haugen | Secretary (Til 4/24) Trustee or director, Officer | 5 | $0 |
| Flavia Cicuttini | Director (Til 4/24) Trustee or director | 5 | $0 |
| Siddharth Das | Director (Til 4/24) Trustee or director | 5 | $0 |
| Rik Lories | Director Trustee or director | 5 | $0 |
| Elena Losina | Director Trustee or director | 5 | $0 |
| Magali Cucchiarini | Dir, Secretary (Eff 4/24) Trustee or director, Officer | 5 | $0 |
| Mohit Kapoor | Dir, Treasurer (Eff 4/24) Trustee or director, Officer | 5 | $0 |
| Amanda Nelson | Director Trustee or director | 5 | $0 |
| Cristina Ruiz Romero | Director Trustee or director | 5 | $0 |
| Martin Van Der Esch | Director Trustee or director | 5 | $0 |
| Chunyi Wen | Director (Eff 4/24) Trustee or director | 5 | $0 |
| Armaghan Mahmoudian | Early Career Inv Chr(Til 4/24) Trustee or director | 5 | $0 |
| Jesse Charlton | Early Career Inv Chr(Til 4/24) Trustee or director | 5 | $0 |
| Matt Harkey | Early Career Inv Chr(Eff 4/24) Trustee or director | 5 | $0 |
| Brooke Patterson | Early Career Inv Chr(Eff 4/24) Trustee or director | 5 | $0 |
| Jeremie Seliam | DIRECTOR (Eff 4/24) Trustee or director | 5 | $0 |
| Thomas Link | Director (Eff 4/24) Trustee or director | 5 | $0 |
| Don Anderson | Director (Eff 4/24) Trustee or director | 5 | $0 |
| Eiji Sasaki | Director (Eff 4/24) Trustee or director | 5 | $0 |
990 for the year ended December 31, 2023: 17 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| GUN-IL IM | PRESIDENT Trustee or director, Officer | 7 | $0 |
| ALI MOBASHERI | PAST PRESIDENT Trustee or director, Officer | 7 | $0 |
| MARTIN ENGLUND | PRESIDENT-ELECT Trustee or director, Officer | 7 | $0 |
| IDA HAUGEN | SECRETARY Trustee or director, Officer | 7 | $0 |
| NANCY LANE | TREASURER Trustee or director, Officer | 7 | $0 |
| FLAVIA CICUTTINI | DIRECTOR Trustee or director | 5 | $0 |
| MAGALI CUCCHIARINI | DIRECTOR Trustee or director | 5 | $0 |
| SIDDHARTH DAS | DIRECTOR Trustee or director | 5 | $0 |
| MOHIT KAPOOR | DIRECTOR Trustee or director | 5 | $0 |
| RIK LORIES | DIRECTOR Trustee or director | 5 | $0 |
| ELENA LOSINA | DIRECTOR Trustee or director | 5 | $0 |
| AMANDA NELSON | DIRECTOR Trustee or director | 5 | $0 |
| CRISTINA RUIZ ROMERO | DIRECTOR Trustee or director | 5 | $0 |
| MARTIN VAN DER ESCH | DIRECTOR Trustee or director | 5 | $0 |
| CHUNYI WEN | DIRECTOR Trustee or director | 5 | $0 |
| JESSE CHARLTON | EARLY CAREER INVESTIGATOR CHAIR Trustee or director | 5 | $0 |
| ARMAGHAN MAHMOUDIAN | EARLY CAREER INVESTIGATOR CHAIR Trustee or director | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 1120 ROUTE 73 STE 200, MOUNT LAUREL, NJ 08054-5113
- In care of
- % NANCY LANE
- Principal officer (990 for 2025)
- Elizabeth Grotos, 1120 ROUTE 73 SUITE 200, MOUNT LAUREL, NJ 08054
- Signed the 990
- Elizabeth Grotos, Executive Director
- Phone
- (856) 642-4201
- Website
- WWW.OARSI.ORG
- Return prepared by
- WITHUMSMITHBROWN PC
Mission
OARSI IS THE FOREMOST INTERNATIONAL ORGANIZATION FOCUSED ON THE PREVENTION AND TREATMENT OF OSTEOARTHRITIS THROUGH THE PROMOTION AND PRESENTATION OF RESEARCH, EDUCATION AND THE WORLD-WIDE DISSEMINATION OF NEW KNOWLEDGE.
Program accomplishments
- WORLD CONGRESS: TO PROVIDE AND SHARE THE LATEST RESEARCH FOR THE PREVENTION AND TREATMENT OF OSTEOARTHRITIS.Expenses $867,556 · grants $12,273 · revenue $343,071
- JOURNAL: TO INFORM READERS OF THE RECENT RESEARCH RELATED TO THE PREVENTION AND TREATMENT OF OSTEOARTHRITIS.Expenses $323,744 · revenue $769,561
- OTHER PROGRAMS: OARSI PROVIDES SCHOLARSHIPS AND CONDUCTS VARIOUS MISCELLAENEOUS PROGRAMS THAT FURTHERS ITS OVERALL MISSION.Expenses $114,158 · grants $42,000 · revenue $13,510
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 52-1867506
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1994
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U99)
- Assets (IRS master file)
- $3,531,671
- Income (IRS master file)
- $1,767,697
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $1,767,697 | $1,827,194 | $3,531,671 | XML |
| 990 | December 2024 | $1,855,604 | $1,986,716 | $3,465,099 | XML |
| 990 | December 2023 | $1,547,647 | $1,539,682 | $3,363,821 | XML |
| 990 | December 2022 | $1,686,983 | $2,103,851 | $2,480,203 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-1867506).
Questions about OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC
- What is the EIN of OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC?
- The employer identification number (EIN) of OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC is 52-1867506.
- Is OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1994.
- Are donations to OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC?
- The 990 for the year ended December 31, 2025 names Elizabeth Grotos.
- Who are the officers and directors of OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC?
- The 990 for the year ended December 31, 2025 lists 17 people; 0 received compensation from the organization.
- How much revenue does OSTEOARTHRITIS RESEARCH SOCIETY INTERNATIONAL INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $1,767,697, expenses of $1,827,194 and total assets of $3,531,671 at year end.
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