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US nonprofit · EIN 841973407 · New York, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 841973407) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code POF), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Alice Trumbull Mason Foundation Inc

Donations deductible
Total assets
$9.9m
IRS master file
Directors and trustees
10
4.0y av
Chair observed
≥2 yrs
Janis Stemmermann
Left since last filing
0
no seats appear to have opened
Activity
T23
Philanthropy, voluntary services and grantmaking
Filings on record
3
latest 2024
Renewal outlook
Low current likelihood
score 0 of 100
Exempt since
2021
5 years ago
How am I connected?

Alice Trumbull Mason Foundation Inc's network

10 people3 organisationsi10 people and 3 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (10). Violet dotted lines (3) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

10 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record.
NameRole as filedSinceOn the board
Janis Stemmermann ChairChair2022
4 yrs
Cecily KahnDirector2022
4 yrs
Elisa Wouk AlminoDirector2022
4 yrs
Katy RogersDirector2024
2 yrs
Marela ZacariasCompany secretary2022
4 yrs
Melany KahnDirector2022
4 yrs
Nari WardDirector2022
4 yrs
Rebecca ToddDirector2024
2 yrs
Steven R RosePresident2022
4 yrs
Tamill KappTreasurer2022
4 yrs
Under 5 years5 to 6 years6 years or more

About

Legal name
Alice Trumbull Mason Foundation Inc
EIN
841973407
Address
Po Box 1257, New York, NY, 10113-1257
State
New York
Activity (NTEE)
T23 Philanthropy, voluntary services and grantmaking
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Philanthropy, Voluntarism & Grantmaking Foundations
Size band
7 (IRS master file code)
IRS ruling date
1 October 2021
Status
Code 01 (unconditional exemption)
Form 990 filings on record
3, latest 2024
IRS Publication 78
POF (contributions deductible)

Most connected

Longest observed on the filings

≥4years on the filingsJanis Stemmermann
≥4years on the filingsCecily Kahn
≥4years on the filingsElisa Wouk Almino
≥4years on the filingsMarela Zacarias

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$0$749kDeficit $749k

As filed on the IRS Form 990. US dollars.