Nonprofit · EIN 43-1783439
MISSOURI BONE & JOINT RESEARCH FOUNDATION
Tax-exempt · CHESTERFIELD, MO 63017
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $588,177 | $173,556 | $414,621 | $4,742,464 | $0 | $4,742,464 |
| December 31, 2024 | 990-PF | $482,839 | $302,143 | $180,696 | $4,327,843 | $0 | $4,327,843 |
| December 31, 2023 | 990-PF | $235,906 | $246,513 | -$10,607 | $4,147,147 | $0 | $4,147,147 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $69,762
- Interest
- $63,324
- Net gain from sales of assets
- $455,091
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $75,776
- Disbursements for charitable purposes
- $140,807
- Excise tax on investment income
- $8,032
Balance sheet and other
- Total assets, start of year
- $4,327,843
- Total assets, end of year
- $4,742,464
- Total liabilities, end of year
- $0
- Net assets, end of year
- $4,742,464
- Fair market value of assets
- $5,173,698
- Qualifying distributions
- $140,807
- Net investment income
- $588,177
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-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LEO A WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | CHAIRMAN | 4 | $0 |
| PATRICIA L WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| KAREN L WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| JANICE C WILKEN 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| ROBERT A WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| ELIZABETH B CONNOLE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
990-PF for the year ended December 31, 2024: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LEO A WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | CHAIRMAN | 4 | $0 |
| PATRICIA L WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| KAREN L WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| JANICE C WILKEN 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| ROBERT A WHITESIDE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
| ELIZABETH B CONNOLE 14825 SUGARWOOD TRAIL DRIVE, CHESTERFIELD, MO 63017 | DIRECTOR | 0.25 | $0 |
990-PF for the year ended December 31, 2023: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LEO A WHITESIDE 1000 DES PERES ROAD SUITE 150, ST LOUIS, MO 63131 | CHAIRMAN | 4 | $0 |
| PATRICIA L WHITESIDE 1000 DES PERES ROAD SUITE 150, ST LOUIS, MO 63131 | DIRECTOR | 0.25 | $0 |
| KAREN L WHITESIDE 1000 DES PERES ROAD SUITE 150, ST LOUIS, MO 63131 | DIRECTOR | 0.25 | $0 |
| JANICE C WILKEN 1000 DES PERES ROAD SUITE 150, ST LOUIS, MO 63131 | DIRECTOR | 0.25 | $0 |
| ROBERT A WHITESIDE 1000 DES PERES ROAD SUITE 150, ST LOUIS, MO 63131 | DIRECTOR | 0.25 | $0 |
| ELIZABETH B CONNOLE 1000 DES PERES ROAD SUITE 150, ST LOUIS, MO 63131 | DIRECTOR | 0.25 | $0 |
Address and contacts
- Address (IRS master file)
- 14825 SUGARWOOD TRAIL DR, CHESTERFIELD, MO 63017-5523
- In care of
- % TAXPAYER
- Signed the 990-PF
- LEO WHITESIDE, OFFICER
- Phone
- (314) 775-0518
- Website
- WWW.MOBOJO.ORG
- Return prepared by
- HOFFMAN BRICKER & ADAMS PC
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. 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-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 43-1783439
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 1997
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Mental health and crisis intervention (F20)
- Assets (IRS master file)
- $4,742,464
- Income (IRS master file)
- $1,641,051
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $588,177 | $173,556 | $4,742,464 | XML |
| 990-PF | December 2024 | $482,839 | $302,143 | $4,327,843 | XML |
| 990-PF | December 2023 | $235,906 | $246,513 | $4,147,147 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
| 990-PF | December 2017 | – | – | – | 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 43-1783439).
Questions about MISSOURI BONE & JOINT RESEARCH FOUNDATION
- What is the EIN of MISSOURI BONE & JOINT RESEARCH FOUNDATION?
- The employer identification number (EIN) of MISSOURI BONE & JOINT RESEARCH FOUNDATION is 43-1783439.
- Is MISSOURI BONE & JOINT RESEARCH FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1997.
- Are donations to MISSOURI BONE & JOINT RESEARCH FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MISSOURI BONE & JOINT RESEARCH FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MISSOURI BONE & JOINT RESEARCH FOUNDATION 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 MISSOURI BONE & JOINT RESEARCH FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of MISSOURI BONE & JOINT RESEARCH FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 6 people; 0 received compensation from the organization.
- How much revenue does MISSOURI BONE & JOINT RESEARCH FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $588,177, expenses of $173,556 and total assets of $4,742,464 at year end.
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