Oster Sinisi Family Foundation Inc
Oster Sinisi Family Foundation Inc is a private foundation, based in Englewood, NJ. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $3.4M in total assets. In 2025, it awarded 4 grants totaling $87K. Net investment income was $117K.
Oster Sinisi Family Foundation Inc at a glance
In short: Oster Sinisi Family Foundation Inc gave $87K across 4 grants in 2025 (avg $22K), mostly in New York. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $86,700
- -87.3% vs 2024
- Grants made (2025)
- 4
- -20.0% vs 2024
- Average grant
- $21,675
- -84.1% vs 2024
- Median grant
- $24,750
- Total assets
- $3,373,209
- +0.9% vs 2024
- Primary geography
- New York (65% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who Oster Sinisi Family Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was Friends of Hagal Sheli Inc ($30K). Together the top 4 received $87K.
Grant Size Distribution
32 grants across all recorded years
The most common grant size was under $50K: 27 grants of 32 (84%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
Cities
How Oster Sinisi Family Foundation Inc gives
- Giving fell 25% from 2022 to 2025. Method
- In 2025 it paid out 50% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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 2021 to 2025, annual grant giving ranged from $87K (2025) to $682K (2024). In 2025 it made 4 grants totaling $87K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Friends of Hagal Sheli Inc Dover, DE | General Support | $30,000 |
| Museum of Jewish Heritage New York, NY | General Suppport | $29,500 |
| Crosstalk Official Foundation White Plains, NY | General Support | $20,000 |
| Temple Sinai Roslyn Heights, NY | General Suppport | $7,200 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $3,373,209 | $155,461 | $125,740 | $86,700 | 4 | $86,700 | $116,821 | $173,154 |
| 2024 | $3,343,488 | $86,598 | $716,445 | $682,000 | 5 | $682,000 | $72,108 | $178,362 |
| 2023 | $3,973,335 | $89,815 | $193,018 | $147,200 | 6 | $153,450 | $73,088 | $190,388 |
| 2022 | $4,076,538 | $638,997 | $142,214 | $115,400 | 11 | $120,400 | $617,183 | $214,289 |
| 2021 | $3,579,755 | $76,551 | $265,400 | $206,800 | 6 | — | $29,747 | $208,154 |
Under IRS private-foundation payout rules, Oster Sinisi Family Foundation Inc reported a distributable amount of $173K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Oster Sinisi Family Foundation Inc is led by Ann Oster, President & Trustee since 2025 (on filings since 2021); none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Ann Oster
President & Trustee
President → President & Trustee, 2025
On filings since 2021
5 hrs/week
No compensation reported
Jane Oster Sinisi
Trustee
New on the 2025 filing
0.1 hrs/week
No compensation reported
Randy Sinisi
Trustee
New on the 2025 filing
0.1 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2021–2025. "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 Oster Sinisi Family Foundation Inc
How much does Oster Sinisi Family Foundation Inc give each year?
Oster Sinisi Family Foundation Inc gave $87K across 4 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $682K across 5 grants.
What is Oster Sinisi Family Foundation Inc's typical grant size?
Oster Sinisi Family Foundation Inc's median grant in 2025 was $24,750, and its average grant was $21,675, across 4 grants on its 2025 IRS Form 990-PF.
Where does Oster Sinisi Family Foundation Inc give grants?
Oster Sinisi Family Foundation Inc gives mostly in New York: 65% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Delaware (35%).
Does Oster Sinisi Family Foundation Inc give general operating support?
Yes: 100% of Oster Sinisi Family Foundation Inc's 2025 grants with a stated purpose (4 of 4) were for general or operating support, per its 2025 IRS Form 990-PF.
How large is Oster Sinisi Family Foundation Inc?
Oster Sinisi Family Foundation Inc reported $3.4M in total assets on its 2025 IRS Form 990-PF. It paid out $87K in qualifying distributions that year, against a required minimum of $173K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What is Oster Sinisi Family Foundation Inc's EIN?
Oster Sinisi Family Foundation Inc's EIN (Employer Identification Number) is 22-3188305. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2021–2025
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