Nonprofit · EIN 43-1558136
QUADRANGLE MANAGEMENT COMPANY
Tax-exempt · SAINT LOUIS, MO 63105
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | -$399,387 | $0 | -$399,387 | $28,856,823 | $28,856,823 | $0 |
| June 30, 2024 | 990 | -$12,770,415 | $0 | -$12,770,415 | $36,652,953 | $36,652,953 | $0 |
| June 30, 2023 | 990 | $698,643 | $0 | $698,643 | $31,889,991 | $31,889,991 | $0 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $0
- Investment income
- $0
- Net rental income
- -$399,387
- Other revenue
- -$399,387
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
Balance sheet and other
- Total assets, start of year
- $36,652,953
- Total assets, end of year
- $28,856,823
- Total liabilities, end of year
- $28,856,823
- Net assets, end of year
- $0
- Land, buildings and equipment
- $22,616,681
- Gross receipts
- $3,550,227
- Employees
- 0
- Year formed
- 1990
- State of legal domicile
- MO
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 |
|---|---|---|---|---|---|
| AMY B KWESKIN through 1124 | CHAIR OF THE BOARD Trustee or director, Officer | 0.5 | $0 | $668,225 | $495,335 |
| REBECCA L BROWN | DIRECTOR Trustee or director | 0.1 | $0 | $572,710 | $70,328 |
| JD LONG II | DIRECTOR Trustee or director | 0.1 | $0 | $378,049 | $60,929 |
| MARY CAMPBELL CHM as of 1124 | PRESIDENT/CHAIRMAN Trustee or director, Officer | 10 | $0 | $356,221 | $51,915 |
| ANGIE LEAHY | TREASURER Officer | 0.4 | $0 | $315,784 | $63,608 |
| AMYE KIM | EXECUTIVE VICE PRESIDENT Trustee or director, Officer | 0.5 | $0 | $303,877 | $37,966 |
| THOMAS J BLACKWELL | SECRETARY Officer | 1 | $0 | $240,634 | $52,341 |
| TATE DUCH | DIRECTOR Trustee or director | 0.1 | $0 | $251,560 | $28,939 |
| STEPHEN C CONDRIN | VICE PRESIDENT Trustee or director, Officer | 5 | $0 | $214,846 | $57,163 |
| JOANNA SCHOOLER | DIRECTOR Trustee or director | 0.1 | $0 | $161,814 | $26,742 |
| RACHEL SIEGERT | VICE PRESIDENT Officer | 20 | $0 | $158,977 | $26,751 |
990 for the year ended June 30, 2024: 10 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| Amy B Kweskin | Chair of the Board Trustee or director, Officer | 0.5 | $0 | $518,455 | $68,538 |
| Rebecca L Brown | Director Trustee or director | 0.1 | $0 | $455,828 | $71,603 |
| JD Long II | Director Trustee or director | 0.1 | $0 | $370,805 | $53,045 |
| Mary B Campbell | President Trustee or director, Officer | 10 | $0 | $341,541 | $47,546 |
| Angie Leahy | Treasurer Trustee or director, Officer | 0.1 | $0 | $272,996 | $60,922 |
| Amye Kim | Exec Vice President Trustee or director, Officer | 0.5 | $0 | $292,883 | $25,808 |
| Thomas J Blackwell | Secretary Trustee or director, Officer | 1 | $0 | $231,427 | $57,814 |
| Stephen C Condrin | Vice President Trustee or director, Officer | 5 | $0 | $219,533 | $43,495 |
| JoAnna Schooler | Director Trustee or director | 0.1 | $0 | $156,597 | $26,327 |
| Rachel Siegert | Vice President Trustee or director, Officer | 35 | $0 | $153,268 | $23,281 |
990 for the year ended June 30, 2023: 11 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| AMY B KWESKIN | CHAIR OF THE BOARD Trustee or director, Officer | 0.5 | $0 | $485,110 | $63,459 |
| REBECCA L BROWN | DIRECTOR Trustee or director | 0.1 | $0 | $425,728 | $53,469 |
| JD LONG II | DIRECTOR Trustee or director | 0.1 | $0 | $358,511 | $49,442 |
| HENRY S WEBBER | CHAIRMAN OF THE BOARD Former | – | $0 | $378,270 | $0 |
| MARY CAMPBELL | PRESIDENT Trustee or director, Officer | 9 | $0 | $329,387 | $44,363 |
| ANGIE LEAHY | TREASURER Officer | 0.1 | $0 | $287,461 | $50,330 |
| AMYE KIM | EXECUTIVE VICE PRESIDENT Trustee or director, Officer | 0.5 | $0 | $298,657 | $13,075 |
| THOMAS J BLACKWELL | SECRETARY Officer | 1 | $0 | $214,463 | $60,447 |
| STEPHEN C CONDRIN | VICE PRESIDENT Trustee or director, Officer | 5 | $0 | $212,389 | $41,508 |
| JOANNA SCHOOLER | DIRECTOR Trustee or director | 0.5 | $0 | $152,475 | $25,152 |
| RACHEL SIEGERT | VICE PRESIDENT Officer | 35 | $0 | $148,198 | $22,247 |
Address and contacts
- Address (IRS master file)
- 7425 FORSYTH BLVD MSC 1299-414-355, SAINT LOUIS, MO 63105-0000
- Principal officer (990 for 2024)
- MARY CAMPBELL, 7425 FORSYTH BLVD MSC 1299-414-355, Saint Louis, MO 63105
- Signed the 990
- ANGIE LEAHY, TREASURER
- Phone
- (314) 935-8283
Mission
NONE
Program accomplishments
- Quadrangle Management Company is organized for the purpose of holding title to and managing certain income-producing property not to be used immediately for Washington University purposes.
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
- 43-1558136
- Tax-exempt status
- 501(c)(25): Title-holding corporation for multiple parents
- Donations deductible
- No
- Exempt since
- 1992
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $28,856,823
- Income (IRS master file)
- $3,550,227
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | -$399,387 | $0 | $28,856,823 | IRS |
| 990 | June 2024 | -$12,770,415 | $0 | $36,652,953 | IRS |
| 990 | June 2023 | $698,643 | $0 | $31,889,991 | XML |
| 990 | June 2022 | $562,224 | $0 | $12,474,979 | IRS |
| 990 | June 2021 | – | – | – | 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 43-1558136).
Questions about QUADRANGLE MANAGEMENT COMPANY
- What is the EIN of QUADRANGLE MANAGEMENT COMPANY?
- The employer identification number (EIN) of QUADRANGLE MANAGEMENT COMPANY is 43-1558136.
- Is QUADRANGLE MANAGEMENT COMPANY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(25) since 1992.
- Are donations to QUADRANGLE MANAGEMENT COMPANY tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does QUADRANGLE MANAGEMENT COMPANY 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 QUADRANGLE MANAGEMENT COMPANY 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 QUADRANGLE MANAGEMENT COMPANY 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 QUADRANGLE MANAGEMENT COMPANY?
- The 990 for the year ended June 30, 2025 names MARY CAMPBELL.
- Who are the officers and directors of QUADRANGLE MANAGEMENT COMPANY?
- The 990 for the year ended June 30, 2025 lists 11 people; 0 received compensation from the organization.
- How much revenue does QUADRANGLE MANAGEMENT COMPANY have?
- On its 990 for the year ended June 30, 2025 it reported revenue of -$399,387, expenses of $0 and total assets of $28,856,823 at year end.
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