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Nonprofit · EIN 02-6123078

JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION

Also known as GRUNBECK JENNIFER & ROBERT TTEES

Tax-exempt · BOSTON, MA 02196

Financials

$22K$91K2023$379K$95K2024$776K$109K2025
Revenue Expenses · by fiscal year end
Financials of JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-PF$776,049$109,456$666,593$748,556$0$748,556
December 31, 2024990-PF$379,011$95,057$283,954$420,070$0$420,070
December 31, 2023990-PF$22,358$91,218-$68,860$123,689$0$123,689
Financial details: 990-PF for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$351,052
Dividends
$6,074
Interest
$3,051
Net gain from sales of assets
$415,872

Expenses

Grants and similar amounts paid
$103,072
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$105,193
Excise tax on investment income
$5,852

Balance sheet and other

Total assets, start of year
$420,070
Total assets, end of year
$748,556
Total liabilities, end of year
$0
Net assets, end of year
$748,556
Fair market value of assets
$748,556
Qualifying distributions
$105,193
Net investment income
$424,997

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.

NameTitleHours / weekCompensation
Robert M Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee1$0
Jennifer A Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee1$0
Michael Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee (start 12/2025)1$0
John K Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee (start 12/2025)1$0
Maggie G Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee (start 12/2025)1$0
990-PF for the year ended December 31, 2024: 2 people
NameTitleHours / weekCompensation
Robert M Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee1$0
Jennifer A Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee1$0
990-PF for the year ended December 31, 2023: 2 people
NameTitleHours / weekCompensation
Robert M Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee1$0
Jennifer A Grunbeck
Choate Hall Stewart LLP Two Intl, Boston, MA 02110
Trustee1$0

Address and contacts

Address (IRS master file)
PO BOX 961019, BOSTON, MA 02196-1019
In care of
% BANK OF AMERICA NA
Signed the 990-PF
Robert M Grunbeck, Trustee
Phone
(617) 248-4760
Return prepared by
Baker Newman & Noyes

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 yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-PF on file
2024December 31, 2024May 15, 2025990-PF on file
2023December 31, 2023May 15, 2024990-PF on file

IRS record

EIN
02-6123078
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Private non-operating foundation
Donations deductible (Pub 78)
Private foundation, 30% limit
Exempt since
2001
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$748,556
Income (IRS master file)
$809,576

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2025$776,049$109,456$748,556XML
990-PFDecember 2024$379,011$95,057$420,070XML
990-PFDecember 2023$22,358$91,218$123,689XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 2020–––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 02-6123078).

Questions about JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION

What is the EIN of JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION?
The employer identification number (EIN) of JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION is 02-6123078.
Is JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2001.
Are donations to JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION 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 JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION 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 JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION?
The 990-PF for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
How much revenue does JENNIFER AND ROBERT GRUNBECK FAMILY FOUNDATION have?
On its 990-PF for the year ended December 31, 2025 it reported revenue of $776,049, expenses of $109,456 and total assets of $748,556 at year end.

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