Mona Private Foundation
Mona Private Foundation is a private foundation, based in Tucson, AZ. IRS filing data is available from 2018 through 2023. In 2023, it awarded 3 grants totaling $25K. Net investment income was $3.
Mona Private Foundation at a glance
In short: Mona Private Foundation gave $25K across 3 grants in 2023 (avg $8K), mostly in Arizona. Source: 2023 IRS Form 990-PF.
- Annual giving (2023)
- $24,729
- -38.2% vs 2022
- Grants made (2023)
- 3
- +50.0% vs 2022
- Average grant
- $8,243
- -58.8% vs 2022
- Median grant
- $5,005
- Primary geography
- Arizona (100% of itemized 2023 grant dollars)
- Latest 990 filing
- Form 990-PF, 2023 View filing
Data from IRS Form 990-PF, 2023; updated October 2026.
Who Mona Private Foundation funds
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2023
The largest 2023 recipient was El Rio Foundation ($15K). Together the top 3 received $25K.
Grant Size Distribution
14 grants across all recorded years
The most common grant size was under $50K: 14 grants of 14 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2023 grant dollars across all 3 itemized grants.
States
Cities
How Mona Private Foundation gives
- Giving held roughly steady from 2020 to 2023 (−18%). Method
- In 2023 it paid out well above its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2018 to 2023, annual grant giving ranged from $25K (2023) to $55K (2021). In 2023 it made 3 grants totaling $25K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| El Rio Foundation Tucson, AZ | Provide Medical Co-Payments for HIV Patients | $14,724 |
| Hermitage No-Kill Cat Shelter Tucson, AZ | Provide support for adoption and long-term care facilities for felines. | $5,005 |
| The Marcy C Schanz Foundation Tucson, AZ | Provide support to promote spaying and neutering of pot bellied pigs. | $5,000 |
Ready to take the next step with Mona Private Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2023 | — | $8 | $35,824 | $24,729 | 3 | $35,824 | $3 | $1,456 |
| 2022 | $35,816 | $36,003 | $41,210 | $40,000 | 2 | $41,210 | $3 | $1,498 |
| 2021 | $41,023 | $53,003 | $56,200 | $55,000 | 3 | $56,200 | $3 | $1,470 |
| 2020 | $44,220 | $52,003 | $31,200 | $30,000 | 2 | — | $3 | $1,512 |
| 2018 | $13,605 | $39,002 | $30,590 | $29,500 | 4 | — | $1 | $637 |
Under IRS private-foundation payout rules, Mona Private Foundation reported a distributable amount of $1K for 2023 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Mona Private Foundation is led by Mario Mastrosimone, President on every filing since 2018; none of the 3 officers listed in 2023 report compensation.
Officers on the 2023 filing
Mario Mastrosimone
President
On filings since 2018
1 hr/week
No compensation reported
George Luis
Director
Vice President → Director, 2021
On filings since 2018
1 hr/week
No compensation reported
James Booth
Vice President & Director
Director → Vice President, 2020
Vice President → Vice President & Director, 2022
On filings since 2018
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2018–2023. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Mona Private Foundation
How much does Mona Private Foundation give each year?
Mona Private Foundation gave $25K across 3 grants in 2023, according to its 2023 IRS Form 990-PF. In 2022 it gave $40K across 2 grants.
What is Mona Private Foundation's typical grant size?
Mona Private Foundation's median grant in 2023 was $5,005, and its average grant was $8,243, across 3 grants on its 2023 IRS Form 990-PF.
Where does Mona Private Foundation give grants?
Mona Private Foundation gives mostly in Arizona: 100% of the grant dollars itemized on its 2023 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Tucson, AZ (3 grants).
Does Mona Private Foundation give general operating support?
Not in 2023: none of the 3 grants with a stated purpose on Mona Private Foundation's 2023 IRS Form 990-PF were described as general or operating support.
How much is Mona Private Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2023, Mona Private Foundation reported a distributable amount of $1K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Mona Private Foundation's EIN?
Mona Private Foundation's EIN (Employer Identification Number) is 45-2703835. IRS Form 990 filing data is available on this page for 2018–2023.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2018 (received by the IRS August 15, 2019)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS February 26, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS September 2, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 30, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 13, 2024)
- IRS filings on file for fiscal years 2018–2023
Explore Open Grants
Browse active grant opportunities in Mona Private Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Thomas R Brown Family Foundation
Tyler, TX
The Thomas R Brown Family Foundation supports community improvement, education, scholarships, and charitable activities, with reported grants to organizations in East Texas and the Tucson, Arizona area. Giving varies widely: its 2023 grants ranged from $205,000 to $1.75 million, but it reported no grants in 2024. The profile does not state whether it accepts unsolicited requests.
Assets
$417K
Grants
11
Total Given
$7.4M
The Haugh Foundation
Tucson, AZ
The Haugh Foundation supports exempt organizations serving Pima County, Arizona, across areas including poverty relief, housing, health care, homelessness services, and community programs; it does not fund individuals. Its 2025 grants ranged from $1,000 to $12,500, with a median of $2,500. It accepts requests beyond a preselected group and asks applicants to submit a short narrative, IRS exemption letter, and proposed-use budget.
Assets
$1.9M
Grants
21
Total Given
$71K
The Womens Foundation for the State of Arizona
Tucson, AZ
WFSA funds grassroots, community-led work advancing racial, gender, and economic equity, especially by organizations led by and serving BIWOC and gender-expansive communities across Arizona. Its grants range from $5,000 to $65,000 for many programs, though reported awards have ranged from $10,000 to $428,005. The profile does not state whether it accepts unsolicited requests.
Assets
$9.6M
Grants
27
Total Given
$1.2M
Flagstaff Arts Council Inc
Flagstaff, AZ
Creative Flagstaff funds arts, cultural, and science organizations and projects, including general operating support and project grants. Its 2025 grants ranged from $5,600 to $35,800, with a median of $11,000; it is based in Flagstaff, Arizona, and serves the local community. The profile does not state whether it accepts unsolicited requests.
Assets
$590K
Grants
31
Total Given
$482K
Marshall Foundation
Tucson, AZ
The Marshall Foundation funds education, scholarships, and related support services that help underserved people access education, including University of Arizona programs. It focuses on Tucson and Pima County, Arizona; 2024 grants ranged from $500 to $200,000, with a median of $25,000, and requests must be at least $25,000. It accepts unsolicited requests through an online letter of intent, with full proposals by invitation only.
Assets
$29.0M
Grants
36
Total Given
$1.7M
Kent Richard Hofmann Foundation
Jackson, MS
The MS Center For Nonprofits in Jackson, MS is a dedicated organization that provides support and resources to nonprofit organizations in the local community. Through various programs and services, the center aims to strengthen the capacity and impact of these nonprofits. With a focus on collaboration and sustainability, the center works to empower organizations to achieve their missions and better serve their constituents by fostering a network of support and knowledge-sharing.
Assets
$1.7M
Grants
1
Total Given
$81K
More similar funders
More Funders in Arizona
The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open
Figures come from Mona Private Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
Mona Private Foundation down — hundreds of funders to go?