Nonprofit · EIN 99-4817891
ARCANIST FOUNDATION INC
Tax-exempt · CAMBRIDGE, MA 02139
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $45,130 | $38,671 | $6,459 | $6,459 | $0 | $6,459 |
| December 31, 2024 | 990-PF | $0 | $0 | $0 | $0 | $0 | $0 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $45,130
Expenses
- Grants and similar amounts paid
- $0
Balance sheet and other
- Total assets, start of year
- $0
- Total assets, end of year
- $6,459
- Total liabilities, end of year
- $0
- Net assets, end of year
- $6,459
- Fair market value of assets
- $6,459
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 |
|---|---|---|---|
| Alexander LeNail 21 Saint Mary Rd, Cambridge, MA 02139 | President | 0 | $0 |
| Ben LeNail 1441 Hamilton Ave, Palo Alto, CA 94301 | VP, Secretary, Treasurer | 0 | $0 |
| Patricia Musolino 185 Cambridge St STE 5248, Boston, MA 02114 | Board Director | 0 | $0 |
| Keith Van Haren 730 Welch Rd STE 206, Palo Alto, CA 94304 | Board Director | 0 | $0 |
990-PF for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Alexander LeNail 21 Saint Mary Rd, Cambridge, MA 02139 | President | 5 | $0 |
| Ben LeNail 1441 Hamilton Ave, Palo Alto, CA 94301 | VP, Secretary, Treasurer | 10 | $0 |
| Patricia Musolino 185 Cambridge St STE 5248, Boston, MA 02114 | Board Director | 1 | $0 |
| Keith Van Haren 730 Welch Rd STE 206, Palo Alto, CA 94304 | Board Director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 21 SAINT MARY RD, CAMBRIDGE, MA 02139-1981
- Signed the 990-PF
- Alexander LeNail, President
- Phone
- (650) 862-1459
- Website
- https://arcanist.bio/
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 | Check at the IRS |
IRS record
- EIN
- 99-4817891
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private operating foundation
- Donations deductible (Pub 78)
- Private operating foundation, 50% limit
- Exempt since
- 2024
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T23)
- Assets (IRS master file)
- $6,459
- Income (IRS master file)
- $45,130
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $45,130 | $38,671 | $6,459 | IRS |
| 990-PF | December 2024 | $0 | $0 | $0 | 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 99-4817891).
Questions about ARCANIST FOUNDATION INC
- What is the EIN of ARCANIST FOUNDATION INC?
- The employer identification number (EIN) of ARCANIST FOUNDATION INC is 99-4817891.
- Is ARCANIST FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2024.
- Are donations to ARCANIST FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private operating foundation, 50% limit).
- Which annual return does ARCANIST FOUNDATION INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of ARCANIST FOUNDATION INC 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 ARCANIST FOUNDATION INC 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 ARCANIST FOUNDATION INC?
- The 990-PF for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does ARCANIST FOUNDATION INC have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $45,130, expenses of $38,671 and total assets of $6,459 at year end.
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All nonprofits in CAMBRIDGE · Massachusetts · Philanthropy, voluntarism and grantmaking foundations