Nonprofit · EIN 20-2993509
STOWERS INSTITUTE FOR MEDICAL RESEARCH
Tax-exempt · KANSAS CITY, MO 64110
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $102,011,512 | $104,688,153 | -$2,676,641 | $179,349,437 | $17,159,864 | $162,189,573 |
| June 30, 2024 | 990 | $107,498,064 | $112,171,222 | -$4,673,158 | $186,739,928 | $18,815,931 | $167,923,997 |
| June 30, 2023 | 990 | $41,036,545 | $49,502,290 | -$8,465,745 | $199,176,169 | $29,624,485 | $169,551,684 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $99,681,043
- of which government grants
- $5,707,124
- Program service revenue
- $0
- Investment income
- $2,263,801
- Royalties
- $20,000
- Net gain from sales of assets
- $779,184
- Other revenue
- $66,668
Expenses
- Grants and similar amounts paid
- $83,105
- Compensation of officers, directors and key employees
- $4,058,774
- Other salaries and wages
- $28,135,496
- Salaries, compensation and benefits (total)
- $43,117,143
- Professional fundraising fees
- $0
- Legal fees
- $133,308
- Occupancy
- $128,140
- Travel
- $1,042,411
- Depreciation
- $9,827,625
- Program services (functional)
- $61,473,097
- Management and general (functional)
- $43,215,056
Balance sheet and other
- Total assets, start of year
- $186,739,928
- Total assets, end of year
- $179,349,437
- Total liabilities, end of year
- $17,159,864
- Net assets, end of year
- $162,189,573
- Land, buildings and equipment
- $121,326,858
- Publicly traded securities
- $48,855,978
- Net assets without donor restrictions
- $161,991,400
- Net assets with donor restrictions
- $198,173
- Gross receipts
- $198,952,261
- Employees
- 360
- Volunteers
- 2
- Year formed
- 2005
- State of legal domicile
- DE
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 June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| RICHARD W BROWN | DIRECTOR/CHAIR DECEASED 3/27/25 Trustee or director, Officer | 2 | $0 | $3,103,954 | $102,383 |
| ROBERT E KRUMLAUF | SCIENTIFIC DIRECTOR EMERITUS Highest-paid employee | 40 | $1,859,563 | $0 | $82,041 |
| ALEJANDRO SNCHEZ ALVARADO | DIR/PRESIDENT/CHIEF SCIENTIFIC OFFICER Trustee or director, Officer | 40 | $1,094,951 | $0 | $839,779 |
| CHARLES GERMAN | DIRECTOR/SECRETARY Trustee or director, Officer | 2 | $0 | $1,165,721 | $80,585 |
| KAUSIK SI | DIRECTOR Trustee or director | 40 | $780,244 | $0 | $241,908 |
| BRENT KREIDER | DIRECTOR Trustee or director | 2 | $0 | $787,292 | $91,449 |
| PENNY M SPENCE | CFO THRU 4/8/2025 Officer | 2 | $0 | $753,782 | $79,650 |
| MATTHEW C GIBSON | INVESTIGATOR Highest-paid employee | 40 | $407,200 | $0 | $238,318 |
| GEORGE L SATTERLEE | DIRECTOR Trustee or director | 2 | $0 | $518,670 | $84,947 |
| JENNIFER GERTON | INVESTIGATOR Highest-paid employee | 40 | $396,972 | $0 | $87,876 |
| JERRY L WORKMAN | INVESTIGATOR Highest-paid employee | 40 | $359,953 | $0 | $80,748 |
| R SCOTT HAWLEY | INVESTIGATOR DECEASED 1/31/25 Highest-paid employee | 40 | $360,706 | $0 | $76,835 |
| BRIAN SLAUGHTER | VP OF SCIENTIFIC OPERATIONS Officer | 40 | $337,739 | $0 | $86,285 |
| JONATHAN THOMAS | DIRECTOR/CHAIR BEGINNING OF SERVICE 3/24/25 Trustee or director, Officer | 2 | $0 | $0 | $0 |
| ALBERZINE FREEMAN | DIRECTOR Trustee or director | 2 | $0 | $0 | $0 |
1 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DAVID A WELTE | DIRECTOR Trustee or director | 2 | $0 |
990 for the year ended June 30, 2024: 16 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| RICHARD W BROWN | DIRECTOR/CHAIR Trustee or director, Officer | 2 | $0 | $2,963,544 | $83,699 |
| ALEJANDRO SNCHEZ ALVARADO | DIR/PRESIDENT/CHIEF SCIENTIFIC OFFICER Trustee or director, Officer | 40 | $1,031,058 | $0 | $691,736 |
| CHARLES GERMAN | DIRECTOR/SECRETARY Trustee or director, Officer | 2 | $0 | $1,110,953 | $79,359 |
| KAUSIK SI | DIRECTOR Trustee or director | 40 | $734,910 | $0 | $167,325 |
| BRENT KREIDER | DIRECTOR Trustee or director | 2 | $0 | $750,108 | $98,179 |
| PENNY M SPENCE | CFO Officer | 2 | $0 | $715,752 | $73,207 |
| ROBERT E KRUMLAUF | SCIENTIFIC DIRECTOR EMERITUS Highest-paid employee | 40 | $596,781 | $0 | $76,690 |
| GEORGE L SATTERLEE | DIRECTOR Trustee or director | 2 | $0 | $494,387 | $81,376 |
| MATTHEW C GIBSON | INVESTIGATOR Highest-paid employee | 40 | $348,361 | $0 | $164,025 |
| JERRY L WORKMAN | INVESTIGATOR Highest-paid employee | 40 | $421,439 | $0 | $69,025 |
| R SCOTT HAWLEY | INVESTIGATOR Highest-paid employee | 40 | $351,610 | $0 | $79,607 |
| TATJANA SAUKA-SPENGLER | INVESTIGATOR Highest-paid employee | 40 | $340,828 | $0 | $77,945 |
| BRIAN SLAUGHTER | VP OF SCIENTIFIC OPERATIONS Officer | 40 | $288,713 | $0 | $76,593 |
| JONATHAN THOMAS | DIRECTOR/VICE CHAIR Trustee or director, Officer | 2 | $0 | $0 | $0 |
| ALBERZINE FREEMAN | DIRECTOR Trustee or director | 2 | $0 | $0 | $0 |
| DAVID A WELTE | DIRECTOR Trustee or director | 2 | $0 | $0 | $0 |
990 for the year ended June 30, 2023: 10 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ALEJANDRO SNCHEZ ALVARADO | DIR/PRESIDENT/CHIEF SCIENTIFIC OFFICER Trustee or director, Officer | 40 | $0 |
| CHARLES GERMAN | DIRECTOR/SECRETARY Trustee or director, Officer | 2 | $0 |
| RICHARD W BROWN | DIRECTOR/CHAIR Trustee or director, Officer | 2 | $0 |
| ALBERZINE FREEMAN | DIRECTOR Trustee or director | 2 | $0 |
| BRENT KREIDER | DIRECTOR Trustee or director | 2 | $0 |
| DAVID A WELTE | DIRECTOR Trustee or director | 2 | $0 |
| GEORGE L SATTERLEE | DIRECTOR Trustee or director | 2 | $0 |
| JONATHAN THOMAS | DIRECTOR Trustee or director | 2 | $0 |
| KAUSIK SI | DIRECTOR AS OF 6/1/23 Trustee or director | 40 | $0 |
| PENNY M SPENCE | CFO Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 1000 E 50TH ST, KANSAS CITY, MO 64110-2262
- In care of
- % KATY GRAHAM
- Principal officer (990 for 2024)
- JONATHAN THOMAS, 1000 EAST 50TH STREET, KANSAS CITY, MO 64110
- Signed the 990
- Jonathan Thomas, Chair
- Phone
- (816) 926-4000
- Website
- WWW.STOWERS.ORG
- Return prepared by
- Forvis Mazars LLP
Mission
THE INSTITUTE'S MISSION IS TO MAKE A SIGNIFICANT CONTRIBUTION TO HUMANITY THROUGH MEDICAL RESEARCH BY EXPANDING OUR UNDERSTANDING OF THE SECRETS OF LIFE AND BY IMPROVING LIFE'S QUALITY THROUGH INNOVATIVE APPROACHES TO THE CAUSES, TREATMENT, AND PREVENTION OF DISEASES.
Program accomplishments
- SIMR'S ACCOMPLISHMENTS ARE DESCRIBED IN SCHEDULE O.Expenses $61,473,097 · grants $83,105
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 June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 20-2993509
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Hospital or medical research organization
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2005
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Medical research (H92)
- Assets (IRS master file)
- $179,349,437
- Income (IRS master file)
- $198,952,261
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $102,011,512 | $104,688,153 | $179,349,437 | IRS |
| 990 | June 2024 | $107,498,064 | $112,171,222 | $186,739,928 | IRS |
| 990 | June 2023 | $41,036,545 | $49,502,290 | $199,176,169 | XML |
| 990 | December 2022 | $48,749,381 | $90,993,628 | $209,016,203 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | 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 20-2993509).
Questions about STOWERS INSTITUTE FOR MEDICAL RESEARCH
- What is the EIN of STOWERS INSTITUTE FOR MEDICAL RESEARCH?
- The employer identification number (EIN) of STOWERS INSTITUTE FOR MEDICAL RESEARCH is 20-2993509.
- Is STOWERS INSTITUTE FOR MEDICAL RESEARCH tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2005.
- Are donations to STOWERS INSTITUTE FOR MEDICAL RESEARCH tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does STOWERS INSTITUTE FOR MEDICAL RESEARCH 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 STOWERS INSTITUTE FOR MEDICAL RESEARCH due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did STOWERS INSTITUTE FOR MEDICAL RESEARCH last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of STOWERS INSTITUTE FOR MEDICAL RESEARCH?
- The 990 for the year ended June 30, 2025 names JONATHAN THOMAS.
- Who are the officers and directors of STOWERS INSTITUTE FOR MEDICAL RESEARCH?
- The 990 for the year ended June 30, 2025 lists 16 people; 8 received compensation from the organization.
- How much revenue does STOWERS INSTITUTE FOR MEDICAL RESEARCH have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $102,011,512, expenses of $104,688,153 and total assets of $179,349,437 at year end.
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