Nonprofit · EIN 43-1819267
LONGER LIFE FOUNDATION
Tax-exempt · CHESTERFIELD, MO 63017
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $684,353 | $644,267 | $40,086 | $80,835 | $0 | $80,835 |
| December 31, 2024 | 990-PF | $599,715 | $581,364 | $18,351 | $40,749 | $0 | $40,749 |
| December 31, 2023 | 990-PF | $550,000 | $570,032 | -$20,032 | $22,398 | $0 | $22,398 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $600,000
- Dividends
- $16,588
- Other income
- $67,765
Expenses
- Grants and similar amounts paid
- $638,732
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $638,732
- Excise tax on investment income
- $231
Balance sheet and other
- Total assets, start of year
- $40,749
- Total assets, end of year
- $80,835
- Total liabilities, end of year
- $0
- Net assets, end of year
- $80,835
- Fair market value of assets
- $80,835
- Qualifying distributions
- $638,732
- Net investment income
- $16,588
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 |
|---|---|---|---|
| Tony Cheng 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Governor, Chairperson | 1 | $0 |
| Preeti Dalawari 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Managing Director | 1 | $0 |
| Dr Samuel Klein 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Deputy Managing Director | 1 | $0 |
| David A Perlmutter 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Governor, Vice Chairman | 1 | $0 |
| Carmony Wong 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Governor | 1 | $0 |
| A Greig Woodring 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Governor | 1 | $0 |
| Allison Gray 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Assistant Treasurer | 1 | $0 |
| Karen Muehlhauser 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Assistant Secretary | 1 | $0 |
| Brian Sobocinski 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Treasurer | 1 | $0 |
990-PF for the year ended December 31, 2024: 12 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Allison Gray 16600 Swingley Ridge Rd, Chesterfield, MO 630177106 | Asst Treasurer | 1 | $0 |
| Karen Muehlhauser Wash U Med Sch Campus Box 8031, 666 S Euclid Avenue, Saint Louis, MO 63110 | Asst Secretary | 1 | $0 |
| Tony Cheng 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | COB | 1 | $0 |
| David A Perlmutter Wash U Med Sch Campus Box 8031, 666 S Euclid Avenue, Saint Louis, MO 63110 | Vice Chairman | 1 | $0 |
| Preeti Dalawari 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Dep Managing Dir | 1 | $0 |
| Brian Sobocinski 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Treasurer | 1 | $0 |
| Carmony Wong 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Governor | 1 | $0 |
| A Greig Woodring 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Governor | 1 | $0 |
| Daniel Zimmerman 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Managing Director | 1 | $0 |
| Samuel Klein Wash U Med Sch Campus Box 8031, 666 S Euclid Avenue, Saint Louis, MO 63110 | Governor | 1 | $0 |
| Paige Seggebruch 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Secretary | 1 | $0 |
| Bradley Evanoff Wash U Med Sch Campus Box 8031, 666 S Euclid Avenue, Saint Louis, MO 63110 | Governor | 1 | $0 |
990-PF for the year ended December 31, 2023: 11 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Allison Gray 16600 Swingley Ridge Rd, Chesterfield, MO 630177106 | Asst Treasurer | 1 | $0 |
| Karen Muehlhauser Wash U Med Sch Campus Box 8031, 666 S Euclid Avenue, Saint Louis, MO 63110 | Asst Secretary | 1 | $0 |
| Anna Manning 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | COB | 1 | $0 |
| David A Perlmutter Wash U Med Sch Campus Box 8031, 666 S Euclid Avenue, Saint Louis, MO 63110 | Vice Chairman | 1 | $0 |
| Preeti Dalawari 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Dep Managing Dir | 1 | $0 |
| Brian Sobocinski 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Treasurer | 1 | $0 |
| Carmony Wong 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Governor | 1 | $0 |
| A Greig Woodring 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Governor | 1 | $0 |
| Daniel Zimmerman 16600 Swingley Ridge Rd, Chesterfield, MO 630171706 | Managing Director | 1 | $0 |
| John Morris Wash U Med Sch Campus Box 8031, 666 S Euclid Avenue, Saint Louis, MO 63110 | Governor | 1 | $0 |
| Paige Seggebruch 16600 Swingley Ridge Road, Chesterfield, MO 63017 | Secretary | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 16600 SWINGLEY RIDGE RD, CHESTERFIELD, MO 63017-1706
- In care of
- % BRIAN SOBOCINSKI
- Signed the 990-PF
- BRIAN SOBOCINSKI, TREASURER
- Phone
- (636) 736-2362
- Website
- www.longerlife.org
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
- 43-1819267
- 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
- 1998
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Medical research (H80)
- Assets (IRS master file)
- $80,835
- Income (IRS master file)
- $684,353
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $684,353 | $644,267 | $80,835 | IRS |
| 990-PF | December 2024 | $599,715 | $581,364 | $40,749 | XML |
| 990-PF | December 2023 | $550,000 | $570,032 | $22,398 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | 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 43-1819267).
Questions about LONGER LIFE FOUNDATION
- What is the EIN of LONGER LIFE FOUNDATION?
- The employer identification number (EIN) of LONGER LIFE FOUNDATION is 43-1819267.
- Is LONGER LIFE FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1998.
- Are donations to LONGER LIFE FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does LONGER LIFE FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of LONGER LIFE 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 LONGER LIFE 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 LONGER LIFE FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 9 people; 0 received compensation from the organization.
- How much revenue does LONGER LIFE FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $684,353, expenses of $644,267 and total assets of $80,835 at year end.
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