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STOWERS INSTITUTE FOR MEDICAL RESEARCH

EIN 20-2993509 KANSAS CITY, MO

Revenue 2024
$102,011,512
Expenses 2024
$104,688,153

Program services were 58.7% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
H92
Classification
1200
Street
1000 E 50TH ST

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • ALEJANDRO SNCHEZ ALVARADO

    DIR/PRESIDENT/CHIEF SCIENTIFIC OFFICER

    Total calculated
    $1,934,730
    From this org
    $1,094,951
    From related orgs
    $0
    Other
    $839,779
    Hours/week
    40 + 4 related

    Schedule J breakdown matched by us

    Base
    $1,041,927
    Bonus
    $0
    Other
    $53,024
    Deferred
    $771,447
    Nontaxable benefits
    $68,332
    Filer's total
    $1,934,730

  • CHARLES GERMAN

    DIRECTOR/SECRETARY

    Total calculated
    $1,246,306
    From this org
    $0
    From related orgs
    $1,165,721
    Other
    $80,585
    Hours/week
    2 + 47 related

    Schedule J breakdown matched by us

    Base
    $0 + $1,146,011 related
    Bonus
    $0
    Other
    $0 + $19,710 related
    Deferred
    $0 + $51,750 related
    Nontaxable benefits
    $0 + $28,835 related
    Filer's total
    $0 + $1,246,306 related

  • JONATHAN THOMAS

    DIRECTOR/CHAIR BEGINNING OF SERVICE 3/24/25

    Total calculated
    $0
    Hours/week
    2 + 15 related

  • RICHARD W BROWN

    DIRECTOR/CHAIR DECEASED 3/27/25

    Total calculated
    $3,206,337
    From this org
    $0
    From related orgs
    $3,103,954
    Other
    $102,383
    Hours/week
    2 + 47 related

    Schedule J breakdown matched by us

    Base
    $0 + $3,054,433 related
    Bonus
    $0
    Other
    $0 + $49,521 related
    Deferred
    $0 + $51,750 related
    Nontaxable benefits
    $0 + $50,633 related
    Filer's total
    $0 + $3,206,337 related

  • ALBERZINE FREEMAN

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2 + 4 related

  • BRENT KREIDER

    DIRECTOR

    Total calculated
    $878,741
    From this org
    $0
    From related orgs
    $787,292
    Other
    $91,449
    Hours/week
    2 + 42 related

    Schedule J breakdown matched by us

    Base
    $0 + $773,792 related
    Bonus
    $0
    Other
    $0 + $13,500 related
    Deferred
    $0 + $51,750 related
    Nontaxable benefits
    $0 + $39,699 related
    Filer's total
    $0 + $878,741 related

  • DAVID A WELTE

    DIRECTOR

    Total calculated
    $0
    Hours/week
    2 + 7 related

  • GEORGE L SATTERLEE

    DIRECTOR

    Total calculated
    $603,617
    From this org
    $0
    From related orgs
    $518,670
    Other
    $84,947
    Hours/week
    2 + 40 related

    Schedule J breakdown matched by us

    Base
    $0 + $515,106 related
    Bonus
    $0
    Other
    $0 + $3,564 related
    Deferred
    $0 + $51,750 related
    Nontaxable benefits
    $0 + $33,197 related
    Filer's total
    $0 + $603,617 related

  • KAUSIK SI

    DIRECTOR

    Total calculated
    $1,022,152
    From this org
    $780,244
    From related orgs
    $0
    Other
    $241,908
    Hours/week
    40 + 2 related

    Schedule J breakdown matched by us

    Base
    $777,922
    Bonus
    $0
    Other
    $2,322
    Deferred
    $203,265
    Nontaxable benefits
    $38,643
    Filer's total
    $1,022,152

  • BRIAN SLAUGHTER

    VP OF SCIENTIFIC OPERATIONS

    Total calculated
    $424,024
    From this org
    $337,739
    From related orgs
    $0
    Other
    $86,285
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $336,929
    Bonus
    $0
    Other
    $810
    Deferred
    $51,462
    Nontaxable benefits
    $34,823
    Filer's total
    $424,024

  • PENNY M SPENCE

    CFO THRU 4/8/2025

    Total calculated
    $833,432
    From this org
    $0
    From related orgs
    $753,782
    Other
    $79,650
    Hours/week
    2 + 49 related

    Schedule J breakdown matched by us

    Base
    $0 + $752,972 related
    Bonus
    $0
    Other
    $0 + $810 related
    Deferred
    $0 + $51,750 related
    Nontaxable benefits
    $0 + $27,900 related
    Filer's total
    $0 + $833,432 related

  • JENNIFER GERTON

    INVESTIGATOR

    Total calculated
    $484,848
    From this org
    $396,972
    From related orgs
    $0
    Other
    $87,876
    Hours/week
    40 + 2 related

    Schedule J breakdown matched by us

    Base
    $342,650
    Bonus
    $0
    Other
    $54,322
    Deferred
    $51,750
    Nontaxable benefits
    $36,126
    Filer's total
    $484,848

  • JERRY L WORKMAN

    INVESTIGATOR

    Total calculated
    $440,701
    From this org
    $359,953
    From related orgs
    $0
    Other
    $80,748
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $355,762
    Bonus
    $0
    Other
    $4,191
    Deferred
    $51,750
    Nontaxable benefits
    $28,998
    Filer's total
    $440,701

  • MATTHEW C GIBSON

    INVESTIGATOR

    Total calculated
    $645,518
    From this org
    $407,200
    From related orgs
    $0
    Other
    $238,318
    Hours/week
    40 + 8 related

    Schedule J breakdown matched by us

    Base
    $385,417
    Bonus
    $0
    Other
    $21,783
    Deferred
    $203,265
    Nontaxable benefits
    $35,053
    Filer's total
    $645,518

  • R SCOTT HAWLEY

    INVESTIGATOR DECEASED 1/31/25

    Total calculated
    $437,541
    From this org
    $360,706
    From related orgs
    $0
    Other
    $76,835
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $355,762
    Bonus
    $0
    Other
    $4,944
    Deferred
    $51,750
    Nontaxable benefits
    $25,085
    Filer's total
    $437,541

  • ROBERT E KRUMLAUF

    SCIENTIFIC DIRECTOR EMERITUS

    Total calculated
    $1,941,604
    From this org
    $1,859,563
    From related orgs
    $0
    Other
    $82,041
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $355,160
    Bonus
    $0
    Other
    $1,504,403
    Deferred
    $51,750
    Nontaxable benefits
    $30,291
    Filer's total
    $1,941,604

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $102,011,512
    Expenses
    $104,688,153
    Contributions
    $99,681,043
    Grants paid
    $83,105
  • 2023
    Revenue
    $107,498,064
    Expenses
    $112,171,222
    Contributions
    $101,275,805
    Grants paid
    $3,171,598
  • 2022
    Revenue
    $48,749,381
    Expenses
    $90,993,628
    Contributions
    $49,795,383
    Grants paid
    $5,000
  • 2022
    Revenue
    $41,036,545
    Expenses
    $49,502,290
    Contributions
    $39,639,310
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Grants made

  • STOWERS REAL ESTATE HOLDING CORPORATION

    no cash amount reported

    2023 SIMR PROVIDED SREHC, A RELATED PARTY AS DISCLOSED IN SCHEDULE R, WITH LEASEHOLD IMPROVEMENTS TO ASSIST IN SREHC'S EXEMPT PURPOSE.

  • STOWERS REAL ESTATE HOLDING CORPORATION

    no cash amount reported

    2024 SIMR PROVIDED SREHC, A RELATED PARTY AS DISCLOSED IN SCHEDULE R, WITH LEASEHOLD IMPROVEMENTS TO ASSIST IN SREHC'S EXEMPT PURPOSE.

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2024 return

Declared as related by

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Related corporations and trusts on its 2024 return

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 10 September 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The IRS Business Master File ingested 5 October 2026, which is when the registration facts above were last refreshed for every organization. Returns through tax year 2024, the newest we have parsed for this organization.