Form990-PF

Department of the Treasury
Internal Revenue Service

Return of Private Foundation
or Section 4947(a)(1) Trust Treated as Private Foundation
right arrowDo not enter social security numbers on this form as it may be made public.
right arrowGo to www.irs.gov/Form990PF for instructions and the latest information.
OMB No. 1545-0047
2023
Open to Public Inspection
For calendar year 2023, or tax year beginning 01-01-2023 , and ending 12-31-2023
Name of foundation
CMB Foundation
 
Number and street (or P.O. box number if mail is not delivered to street address)15275 Little St Marys Road
  Room/suite
City or town, state or province, country, and ZIP or foreign postal code
Mettawa, IL60048
A Employer identification number

36-3519496
B Telephone number (see instructions)

(772) 932-1155
C right arrow
G Check all that apply:

D 1. Foreign organizations, check here............. right arrow
2. Foreign organizations meeting the 85%
test, check here and attach computation ... right arrow
E right arrow
H Check type of organization:
F right arrow
I Fair market value of all assets at end
of year (from Part II, col. (c),
line 16)right arrow$4,936,103J Accounting method:
 
(Part I, column (d) must be on cash basis.)
Part I Analysis of Revenue and Expenses (The total of amounts in columns (b), (c), and (d) may not necessarily equal the amounts in column (a) (see instructions).) (a) Revenue and
expenses per
books 		(b) Net investment
income 		(c) Adjusted net
income 		(d) Disbursements
for charitable
purposes
(cash basis only)
Revenue 1 Contributions, gifts, grants, etc., received (attach schedule)  
2 Check right arrow.............
3 Interest on savings and temporary cash investments      
4 Dividends and interest from securities... 74,059 74,059  
5a Gross rents............      
b Net rental income or (loss)  
6a Net gain or (loss) from sale of assets not on line 10 194,640
b Gross sales price for all assets on line 6a 1,306,822
7 Capital gain net income (from Part IV, line 2)... 194,640
8 Net short-term capital gain.........  
9 Income modifications...........  
10a Gross sales less returns and allowances  
b Less: Cost of goods sold....  
c Gross profit or (loss) (attach schedule).....    
11 Other income (attach schedule).......      
12 Total. Add lines 1 through 11........ 268,699 268,699  
Operating and Administrative Expenses 13 Compensation of officers, directors, trustees, etc. 0 0   0
14 Other employee salaries and wages......        
15 Pension plans, employee benefits.......        
16a Legal fees (attach schedule).........        
b Accounting fees (attach schedule)....... Click to see attachment
List of Attached Documents:
// Content
3,521 3,521   0
c Other professional fees (attach schedule).... Click to see attachment
List of Attached Documents:
// Content
36,145 36,145   0
17 Interest...............        
18 Taxes (attach schedule) (see instructions)... Click to see attachment
List of Attached Documents:
// Content
651 651   0
19 Depreciation (attach schedule) and depletion...      
20 Occupancy..............        
21 Travel, conferences, and meetings.......        
22 Printing and publications..........        
23 Other expenses (attach schedule)....... Click to see attachment
List of Attached Documents:
// Content
15 15   0
24 Total operating and administrative expenses.
Add lines 13 through 23.......... 40,332 40,332   0
25 Contributions, gifts, grants paid....... 208,563 208,563
26 Total expenses and disbursements. Add lines 24 and 25 248,895 40,332   208,563
27 Subtract line 26 from line 12:
a Excess of revenue over expenses and disbursements 19,804
b Net investment income (if negative, enter -0-) 228,367
c Adjusted net income (if negative, enter -0-)...  
For Paperwork Reduction Act Notice, see instructions.
Cat. No. 11289X Form 990-PF (2023)
Form 990-PF (2023)
Page 2
Part II Balance Sheets Attached schedules and amounts in the description column
should be for end-of-year amounts only. (See instructions.) 		Beginning of year End of year
(a) Book Value (b) Book Value (c) Fair Market Value
Assets 1 Cash—non-interest-bearing............. 6,052 18,676 18,676
2 Savings and temporary cash investments......... 88,583 49,020 49,020
3 Accounts receivable right arrow  
Less: allowance for doubtful accounts right arrow        
4 Pledges receivable right arrow  
Less: allowance for doubtful accounts right arrow        
5 Grants receivable.................      
6 Receivables due from officers, directors, trustees, and other
disqualified persons (attach schedule) (see instructions).....      
7 Other notes and loans receivable (attach schedule) right arrow  
Less: allowance for doubtful accounts right arrow        
8 Inventories for sale or use..............      
9 Prepaid expenses and deferred charges..........      
10a Investments—U.S. and state government obligations (attach schedule)      
b Investments—corporate stock (attach schedule)....... 2,942,299 Click to see attachment
List of Attached Documents:
// Content
3,024,517 		4,744,762
c Investments—corporate bonds (attach schedule)....... 133,592 Click to see attachment
List of Attached Documents:
// Content
117,000 		121,438
11 Investments—land, buildings, and equipment: basis right arrow  
Less: accumulated depreciation (attach schedule) right arrow        
12 Investments—mortgage loans.............      
13 Investments—other (attach schedule)..........      
14 Land, buildings, and equipment: basis right arrow  
Less: accumulated depreciation (attach schedule) right arrow        
15 Other assets (describe right arrow) Click to see attachment
List of Attached Documents:
// Content
1,002 		Click to see attachment
List of Attached Documents:
// Content
2,207 		Click to see attachment
List of Attached Documents:
// Content
2,207
16 Total assets (to be completed by all filers—see the
instructions. Also, see page 1, item I) 3,171,528 3,211,420 4,936,103
Liabilities 17 Accounts payable and accrued expenses.......... 2,861 22,371
18 Grants payable.................    
19 Deferred revenue.................    
20 Loans from officers, directors, trustees, and other disqualified persons    
21 Mortgages and other notes payable (attach schedule)......    
22 Other liabilities (describe right arrow)    
23 Total liabilities (add lines 17 through 22)......... 2,861 22,371
Net Assets or Fund Balances Foundations that follow FASB ASC 958, check here right arrow
and complete lines 24, 25, 29 and 30.
24 Net assets without donor restrictions...........    
25 Net assets with donor restrictions............    
Foundations that do not follow FASB ASC 958, check here right arrow
and complete lines 26 through 30.
26 Capital stock, trust principal, or current funds........ 1,748,838 1,748,838
27 Paid-in or capital surplus, or land, bldg., and equipment fund 0 0
28 Retained earnings, accumulated income, endowment, or other funds 1,419,829 1,440,211
29 Total net assets or fund balances (see instructions)..... 3,168,667 3,189,049
30 Total liabilities and net assets/fund balances (see instructions). 3,171,528 3,211,420
Part III
Analysis of Changes in Net Assets or Fund Balances
1
Total net assets or fund balances at beginning of year—Part II, column (a), line 29 (must agree with end-of-year figure reported on prior year’s return) ...............
1
3,168,667
2
Enter amount from Part I, line 27a .....................
2
19,804
3
Other increases not included in line 2 (itemize) right arrowClick to see attachment
List of Attached Documents:
// Content
3
578
4
Add lines 1, 2, and 3 ..........................
4
3,189,049
5
Decreases not included in line 2 (itemize) right arrow
5
0
6
Total net assets or fund balances at end of year (line 4 minus line 5)—Part II, column (b), line 29 .
6
3,189,049
Form 990-PF (2023)
Form 990-PF (2023)
Page 3
Part IV
Capital Gains and Losses for Tax on Investment Income
(a) List and describe the kind(s) of property sold (e.g., real estate,
2-story brick warehouse; or common stock, 200 shs. MLC Co.)		 (b)
How acquired
P—Purchase
D—Donation 		(c)
Date acquired
(mo., day, yr.) 		(d)
Date sold
(mo., day, yr.)
1 a BMB Bank #3186      
b BMB Bank #3186      
c Capital Gains Dividends P    
d
e
(e)
Gross sales price 		(f)
Depreciation allowed
(or allowable) 		(g)
Cost or other basis
plus expense of sale 		(h)
Gain or (loss)
(e) plus (f) minus (g)
a 242,700   235,148 7,552
b 1,059,488   877,034 182,454
c 4,634     4,634
d
e
Complete only for assets showing gain in column (h) and owned by the foundation on 12/31/69 (l)
Gains (Col. (h) gain minus
col. (k), but not less than -0-) or
Losses (from col.(h))
(i)
F.M.V. as of 12/31/69 		(j)
Adjusted basis
as of 12/31/69 		(k)
Excess of col. (i)
over col. (j), if any
a       7,552
b       182,454
c       4,634
d
e
2 Capital gain net income or (net capital loss) Bracket If gain, also enter in Part I, line 7
If (loss), enter -0- in Part I, line 7		 Bracket 2 194,640
3 Net short-term capital gain or (loss) as defined in sections 1222(5) and (6):
If gain, also enter in Part I, line 8, column (c) (see instructions). If (loss), enter -0-
in Part I, line 8 ................... 		Bracket 3  
Part V
Excise Tax Based on Investment Income (Section 4940(a), 4940(b), 4940(e), or 4948—see instructions)
1a Exempt operating foundations described in section 4940(d)(2), check here right arrow and enter “N/A" on line 1. Bracket for line 1a
Date of ruling or determination letter:   (attach copy of letter if necessary–see instructions) 1 3,174
b All other domestic foundations enter 1.39% (0.0139) of line 27b. Exempt foreign organizations enter 4% (0.04) of Part I, line 12, col. (b)
2 Tax under section 511 (domestic section 4947(a)(1) trusts and taxable foundations only. Others enter -0-) 2 0
3 Add lines 1 and 2........................... 3 3,174
4 Subtitle A (income) tax (domestic section 4947(a)(1) trusts and taxable foundations only. Others enter -0-) 4 0
5 Tax based on investment income. Subtract line 4 from line 3. If zero or less, enter -0- ..... 5 3,174
6 Credits/Payments:
a 2023 estimated tax payments and 2022 overpayment credited to 2023 6a 4,534
b Exempt foreign organizations—tax withheld at source...... 6b 0
c Tax paid with application for extension of time to file (Form 8868)... 6c 0
d Backup withholding erroneously withheld .......... 6d 0
7 Total credits and payments. Add lines 6a through 6d.............. 7 4,534
8 Enter any penalty for underpayment of estimated tax. Check here if Form 2220 is attached. Click to see attachment
List of Attached Documents:
// Content
8 0
9 Tax due. If the total of lines 5 and 8 is more than line 7, enter amount owed.......right arrow 9  
10 Overpayment. If line 7 is more than the total of lines 5 and 8, enter the amount overpaid...right arrow 10 1,360
11 Enter the amount of line 10 to be: Credited to 2024 estimated taxright arrow1,360 Refundedright arrow 11 0
Form 990-PF (2023)
Form 990-PF (2023)
Page 4
Part VI-A
Statements Regarding Activities
1a
During the tax year, did the foundation attempt to influence any national, state, or local legislation or did
Yes
No
it participate or intervene in any political campaign? ....................
1a
 
No
b
Did it spend more than $100 during the year (either directly or indirectly) for political purposes? See the instructions
for the definition.................................
1b
 
No
If the answer is "Yes" to 1a or 1b, attach a detailed description of the activities and copies of any materials
published or distributed by the foundation in connection with the activities.
c
Did the foundation file Form 1120-POL for this year?.....................
1c
 
No
d
Enter the amount (if any) of tax on political expenditures (section 4955) imposed during the year:
(1) On the foundation. right arrow$ 0(2) On foundation managers.right arrow$ 0
e
Enter the reimbursement (if any) paid by the foundation during the year for political expenditure tax imposed
on foundation managers.right arrow$ 0
2
Has the foundation engaged in any activities that have not previously been reported to the IRS?.......
2
 
No
If "Yes," attach a detailed description of the activities.
3
Has the foundation made any changes, not previously reported to the IRS, in its governing instrument, articles
of incorporation, or bylaws, or other similar instruments? If "Yes," attach a conformed copy of the changes....
3
 
No
4a
Did the foundation have unrelated business gross income of $1,000 or more during the year?.........
4a
 
No
b
If "Yes," has it filed a tax return on Form 990-T for this year?...................
4b
 
 
5
Was there a liquidation, termination, dissolution, or substantial contraction during the year?.........
5
 
No
If "Yes," attach the statement required by General Instruction T.
6
Are the requirements of section 508(e) (relating to sections 4941 through 4945) satisfied either:
round bullet By language in the governing instrument, or
round bullet By state legislation that effectively amends the governing instrument so that no mandatory directions
that conflict with the state law remain in the governing instrument? ................
6
Yes
 
7
Did the foundation have at least $5,000 in assets at any time during the year? If "Yes," complete Part II, col. (c),
and Part XIV..................................
7
Yes
 
8a
Enter the states to which the foundation reports or with which it is registered (see instructions)
right arrowIL
b
If the answer is "Yes" to line 7, has the foundation furnished a copy of Form 990-PF to the Attorney
General (or designate) of each state as required by General Instruction G? If "No," attach explanation .
8b
Yes
 
9
Is the foundation claiming status as a private operating foundation within the meaning of section 4942(j)(3)
or 4942(j)(5) for calendar year 2023 or the taxable year beginning in 2023? See the instructions for Part XIII.
If "Yes," complete Part XIII .............................
9
 
No
10
Did any persons become substantial contributors during the tax year? If "Yes," attach a schedule listing their names
and addresses. ...............................
10
 
No
11
At any time during the year, did the foundation, directly or indirectly, own a controlled entity within the
meaning of section 512(b)(13)? If "Yes," attach schedule. See instructions .............
11
 
No
12
Did the foundation make a distribution to a donor advised fund over which the foundation or a disqualified person had
advisory privileges? If "Yes," attach statement. See instructions.................
12
 
No
13
Did the foundation comply with the public inspection requirements for its annual returns and exemption application?
13
Yes
 
Website addressright arrowN/A
14
The books are in care ofright arrowCharles Brennan Telephone no.right arrow (772) 932-1155

Located atright arrow281 S Beach RoadHobe SoundFL ZIP+4right arrow33455
15
Section 4947(a)(1) nonexempt charitable trusts filing Form 990-PF in lieu of Form 1041 —check here .........right arrow
and enter the amount of tax-exempt interest received or accrued during the year ........right arrow
15
 
16 At any time during calendar year 2023, did the foundation have an interest in or a signature or other authority over YesNo
a bank, securities, or other financial account in a foreign country? .................
16   No
See the instructions for exceptions and filing requirements for FinCEN Form 114. If "Yes", enter the name of the foreign
country right arrow
Form 990-PF (2023)
Form 990-PF (2023)
Page 5
Part VI-B
Statements Regarding Activities for Which Form 4720 May Be Required
File Form 4720 if any item is checked in the "Yes" column, unless an exception applies.
Yes
No
1a
During the year did the foundation (either directly or indirectly):
(1) Engage in the sale or exchange, or leasing of property with a disqualified person? ...........
1a(1)
 
No
(2) Borrow money from, lend money to, or otherwise extend credit to (or accept it from)
a disqualified person? ..............................
1a(2)
 
No
(3) Furnish goods, services, or facilities to (or accept them from) a disqualified person? ...........
1a(3)
 
No
(4) Pay compensation to, or pay or reimburse the expenses of, a disqualified person? ............
1a(4)
 
No
(5) Transfer any income or assets to a disqualified person (or make any of either available
for the benefit or use of a disqualified person)? ......................
1a(5)
 
No
(6) Agree to pay money or property to a government official? (Exception. Check "No"
if the foundation agreed to make a grant to or to employ the official for a period
after termination of government service, if terminating within 90 days.) ...............
1a(6)
 
No
b
If any answer is "Yes" to 1a(1)–(6), did any of the acts fail to qualify under the exceptions described in Regulations
section 53.4941(d)-3 or in a current notice regarding disaster assistance? See instructions ..........
1b
 
 
c
Organizations relying on a current notice regarding disaster assistance check here ........right arrow
d
Did the foundation engage in a prior year in any of the acts described in 1a, other than excepted acts,
that were not corrected before the first day of the tax year beginning in 2023? .............
1d
 
No
2
Taxes on failure to distribute income (section 4942) (does not apply for years the foundation was a private
operating foundation defined in section 4942(j)(3) or 4942(j)(5)):
a
At the end of tax year 2023, did the foundation have any undistributed income (Part XII, lines 6d
and 6e) for tax year(s) beginning before 2023?....................
2a
 
No
If "Yes," list the years right arrow20, 20, 20, 20
b
Are there any years listed in 2a for which the foundation is not applying the provisions of section 4942(a)(2)
(relating to incorrect valuation of assets) to the year’s undistributed income? (If applying section 4942(a)(2)
to all years listed, answer "No" and attach statement—see instructions.) ..............
2b
 
 
c
If the provisions of section 4942(a)(2) are being applied to any of the years listed in 2a, list the years here.
right arrow20, 20, 20, 20
3a
Did the foundation hold more than a 2% direct or indirect interest in any business enterprise at
any time during the year? ..............................
3a
 
No
b
If "Yes," did it have excess business holdings in 2023 as a result of (1) any purchase by the foundation
or disqualified persons after May 26, 1969; (2) the lapse of the 5-year period (or longer period approved
by the Commissioner under section 4943(c)(7)) to dispose of holdings acquired by gift or bequest; or (3)
the lapse of the 10-, 15-, or 20-year first phase holding period? (Use Schedule C, Form 4720, to determine
if the foundation had excess business holdings in 2023.) .....................
3b
 
 
4a
Did the foundation invest during the year any amount in a manner that would jeopardize its charitable purposes?
4a
 
No
b
Did the foundation make any investment in a prior year (but after December 31, 1969) that could jeopardize its
charitable purpose that had not been removed from jeopardy before the first day of the tax year beginning in 2023? ..
4b
 
No
Form 990-PF (2023)
Form 990-PF (2023)
Page 6
Part VI-B
Statements Regarding Activities for Which Form 4720 May Be Required (continued)
5a
During the year did the foundation pay or incur any amount to:
Yes
No
(1) Carry on propaganda, or otherwise attempt to influence legislation (section 4945(e))? ..........
5a(1)
 
No
(2) Influence the outcome of any specific public election (see section 4955); or to carry
on, directly or indirectly, any voter registration drive? ....................
5a(2)
 
No
(3) Provide a grant to an individual for travel, study, or other similar purposes? .............
5a(3)
 
No
(4) Provide a grant to an organization other than a charitable, etc., organization described
in section 4945(d)(4)(A)? See instructions ........................
5a(4)
 
No
(5) Provide for any purpose other than religious, charitable, scientific, literary, or
educational purposes, or for the prevention of cruelty to children or animals? .............
5a(5)
 
No
b
If any answer is "Yes" to 5a(1)–(5), did any of the transactions fail to qualify under the exceptions described in
Regulations section 53.4945 or in a current notice regarding disaster assistance? See instructions ........
5b
 
 
c
Organizations relying on a current notice regarding disaster assistance check .........right arrow
d
If the answer is "Yes" to question 5a(4), does the foundation claim exemption from the
tax because it maintained expenditure responsibility for the grant? .................
5d
 
 
If "Yes," attach the statement required by Regulations section 53.4945–5(d).
6a
Did the foundation, during the year, receive any funds, directly or indirectly, to pay premiums on
a personal benefit contract? .............................
6a
 
No
b
Did the foundation, during the year, pay premiums, directly or indirectly, on a personal benefit contract? ....
6b
 
No
If "Yes" to 6b, file Form 8870.
7a
At any time during the tax year, was the foundation a party to a prohibited tax shelter transaction?
7a
 
No
b
If "Yes", did the foundation receive any proceeds or have any net income attributable to the transaction? .....
7b
 
 
8
Is the foundation subject to the section 4960 tax on payment(s) of more than $1,000,000 in remuneration or
excess parachute payment during the year? .........................
8
 
No
Part VII
Information About Officers, Directors, Trustees, Foundation Managers, Highly Paid Employees,
and Contractors
1 List all officers, directors, trustees, foundation managers and their compensation. See instructions
(a) Name and address (b) Title, and average
hours per week
devoted to position 		(c) Compensation
 (If not paid, enter
-0-) 		(d) Contributions to employee benefit plans and deferred compensation (e) Expense account,
other allowances
Charles M Brennan Trustee
1.00 		0 0 0
281 S Beach Road
Hobe Sound,FL33455
Mary Brennan Trustee
1.00 		0 0 0
281 S Beach Road
Hobe Sound,FL33455
2 Compensation of five highest-paid employees (other than those included on line 1—see instructions). If none, enter “NONE."
(a) Name and address of each employee paid more than $50,000 (b) Title, and average
hours per week
devoted to position 		(c) Compensation (d) Contributions to
employee benefit
plans and deferred
compensation 		(e) Expense account,
other allowances
NONE
Total number of other employees paid over $50,000...................right arrow 0
Form 990-PF (2023)
Form 990-PF (2023)
Page 7
Part VII
Information About Officers, Directors, Trustees, Foundation Managers, Highly Paid Employees,
and Contractors (continued)
3 Five highest-paid independent contractors for professional services (see instructions). If none, enter "NONE".
(a) Name and address of each person paid more than $50,000 (b) Type of service (c) Compensation
NONE
Total number of others receiving over $50,000 for professional services.............right arrow0
Part VIII-A
Summary of Direct Charitable Activities
List the foundation’s four largest direct charitable activities during the tax year. Include relevant statistical information such as the number of organizations and other beneficiaries served, conferences convened, research papers produced, etc. Expenses
1  
2  
3  
4  
Part VIII-B
Summary of Program-Related Investments (see instructions)
Describe the two largest program-related investments made by the foundation during the tax year on lines 1 and 2. Amount
1  
2  
All other program-related investments. See instructions.
3  
Total. Add lines 1 through 3.........................right arrow0
Form 990-PF (2023)
Form 990-PF (2023)
Page 8
Part IX
Minimum Investment Return (All domestic foundations must complete this part. Foreign foundations, see instructions.)
1
Fair market value of assets not used (or held for use) directly in carrying out charitable, etc.,
purposes:
a
Average monthly fair market value of securities...................
1a
4,480,120
b
Average of monthly cash balances.......................
1b
110,508
c
Fair market value of all other assets (see instructions)................
1c
0
d
Total (add lines 1a, b, and c).........................
1d
4,590,628
e
Reduction claimed for blockage or other factors reported on lines 1a and
1c (attach detailed explanation) .............
1e
0
2
Acquisition indebtedness applicable to line 1 assets..................
2
0
3
Subtract line 2 from line 1d.........................
3
4,590,628
4
Cash deemed held for charitable activities. Enter 1.5% (0.015) of line 3 (for greater amount, see
instructions) .............................
4
68,859
5
Net value of noncharitable-use assets. Subtract line 4 from line 3. ............
5
4,521,769
6
Minimum investment return. Enter 5% (0.05) of line 5................
6
226,088
Part X
Distributable Amount (see instructions) (Section 4942(j)(3) and (j)(5) private operating foundations and certain foreign organizations check here right arrow and do not complete this part.)
1
Minimum investment return from Part IX, line 6..................
1
226,088
2a
Tax on investment income for 2022 from Part V, line 5.......
2a
3,174
b
Income tax for 2022. (This does not include the tax from Part V.) ...
2b
 
c
Add lines 2a and 2b............................
2c
3,174
3
Distributable amount before adjustments. Subtract line 2c from line 1............
3
222,914
4
Recoveries of amounts treated as qualifying distributions................
4
0
5
Add lines 3 and 4............................
5
222,914
6
Deduction from distributable amount (see instructions).................
6
0
7
Distributable amount as adjusted. Subtract line 6 from line 5. Enter here and on Part XII, line 1 ...
7
222,914
Part XI
Qualifying Distributions (see instructions)
1
Amounts paid (including administrative expenses) to accomplish charitable, etc., purposes:
a
Expenses, contributions, gifts, etc.—total from Part I, column (d), line 26 ..........
1a
208,563
b
Program-related investments—total from Part VIII-B..................
1b
0
2
Amounts paid to acquire assets used (or held for use) directly in carrying out charitable, etc.,
purposes...............................
2
 
3
Amounts set aside for specific charitable projects that satisfy the:
a
Suitability test (prior IRS approval required)....................
3a
 
b
Cash distribution test (attach the required schedule) .................
3b
 
4
Qualifying distributions. Add lines 1a through 3b. Enter here and on Part XII, line 4. .......
4
208,563
Form 990-PF (2023)
Form 990-PF (2023)
Page 9
Part XII
Undistributed Income (see instructions)
(a)
Corpus 		(b)
Years prior to 2022 		(c)
2022 		(d)
2023
1 Distributable amount for 2023 from Part X, line 7 222,914
2 Undistributed income, if any, as of the end of 2022:
a Enter amount for 2022 only....... 0
b Total for prior years:20 , 20, 20 0
3 Excess distributions carryover, if any, to 2022:
a From 2018...... 14,045
b From 2019......  
c From 2020......  
d From 2021...... 5,357
e From 2022...... 6,860
f Total of lines 3a through e ........ 26,262
4Qualifying distributions for 2023 from Part
XI, line 4: right arrow$ 208,563
a Applied to 2022, but not more than line 2a 0
b Applied to undistributed income of prior years
(Election required—see instructions)..... 		0
c Treated as distributions out of corpus (Election
required—see instructions)........ 		0
d Applied to 2023 distributable amount..... 208,563
e Remaining amount distributed out of corpus 0
5 Excess distributions carryover applied to 2023. 14,351 14,351
(If an amount appears in column (d), the
same amount must be shown in column (a).)
6Enter the net total of each column as
indicated below:
a Corpus. Add lines 3f, 4c, and 4e. Subtract line 5 11,911
b Prior years’ undistributed income. Subtract
line 4b from line 2b .......... 		0
c Enter the amount of prior years’ undistributed
income for which a notice of deficiency has
been issued, or on which the section 4942(a)
tax has been previously assessed...... 		0
d Subtract line 6c from line 6b. Taxable amount
—see instructions ........... 		0
e Undistributed income for 2022. Subtract line
4a from line 2a. Taxable amount—see
instructions ............. 		0
f Undistributed income for 2023. Subtract
lines 4d and 5 from line 1. This amount must
be distributed in 2024 .......... 		0
7 Amounts treated as distributions out of
corpus to satisfy requirements imposed by
section 170(b)(1)(F) or 4942(g)(3) (Election may
be required - see instructions) ....... 		0
8 Excess distributions carryover from 2018 not
applied on line 5 or line 7 (see instructions) ... 		0
9 Excess distributions carryover to 2024.
Subtract lines 7 and 8 from line 6a ...... 		11,911
10 Analysis of line 9:
a Excess from 2019....  
b Excess from 2020....  
c Excess from 2021.... 5,051
d Excess from 2022.... 6,860
e Excess from 2023....  
Form 990-PF (2023)
Form 990-PF (2023)
Page 10
Part XIII
Private Operating Foundations (see instructions and Part VI-A, question 9)
1a If the foundation has received a ruling or determination letter that it is a private operating
foundation, and the ruling is effective for 2023, enter the date of the ruling ...... right arrow
 
b Check box to indicate whether the organization is a private operating foundation described in section or
2a Enter the lesser of the adjusted net
income from Part I or the minimum
investment return from Part IX for each
year listed .......... 		Tax year Prior 3 years (e) Total
(a) 2023 (b) 2022 (c) 2021 (d) 2020
         
b 85% (0.85) of line 2a .........          
c Qualifying distributions from Part XI,
line 4 for each year listed ..... 		         
d Amounts included in line 2c not used directly
for active conduct of exempt activities .......... 		         
e Qualifying distributions made directly
for active conduct of exempt activities.
Subtract line 2d from line 2c .... 		         
3 Complete 3a, b, or c for the
alternative test relied upon:
a “Assets" alternative test—enter:
(1) Value of all assets ......          
(2) Value of assets qualifying
under section 4942(j)(3)(B)(i)		          
b “Endowment" alternative test— enter 2/3
of minimum investment return shown in
Part IX, line 6 for each year listed .. 		         
c “Support" alternative test—enter:
(1) Total support other than gross
investment income (interest,
dividends, rents, payments
on securities loans (section
512(a)(5)), or royalties) .... 		         
(2) Support from general public
and 5 or more exempt
organizations as provided in
section 4942(j)(3)(B)(iii).... 		         
(3) Largest amount of support
from an exempt organization		          
(4) Gross investment income          
Part XIV
Supplementary Information (Complete this part only if the foundation had $5,000 or more in
assets at any time during the year—see instructions.)
1Information Regarding Foundation Managers:
aList any managers of the foundation who have contributed more than 2% of the total contributions received by the foundation
before the close of any tax year (but only if they have contributed more than $5,000). (See section 507(d)(2).)
Charles M Brennan
bList any managers of the foundation who own 10% or more of the stock of a corporation (or an equally large portion of the
ownership of a partnership or other entity) of which the foundation has a 10% or greater interest.
2Information Regarding Contribution, Grant, Gift, Loan, Scholarship, etc., Programs:
Check here right arrow
aThe name, address, and telephone number or email address of the person to whom applications should be addressed:
bThe form in which applications should be submitted and information and materials they should include:
cAny submission deadlines:
dAny restrictions or limitations on awards, such as by geographical areas, charitable fields, kinds of institutions, or other
factors:
Form 990-PF (2023)
Form 990-PF (2023)
Page 11
Part XIV
Supplementary Information (continued)
3 Grants and Contributions Paid During the Year or Approved for Future Payment
Recipient If recipient is an individual,
show any relationship to
any foundation manager
or substantial contributor
 Foundation
status of
recipient 		Purpose of grant or
contribution 		Amount
Name and address (home or business)
aPaid during the year

1000 Friends of Florida

PO Box 5948
Tallahassee,FL323145948 		None   Florida Conservation 5,000

Arbor Day Foundation

211 N 12th Street
Lincoln,NE68508 		None   Environmental Protection and Conservation 1,000

Art Institute of Chicago

111 South Michigan Avenue
Chicago,IL60603 		None   Educational 12,500

Atlantic Salmon Federation

15 Rankine Mill Road
Chamcook,New Brusnwick  
CA 		None   Conservation 5,000

Banner Lake Club Inc

PO Box 1875
Hobe Sound,FL334751875 		None   Youth Development 1,000

Bonefish and Tarpon Trust

24 Dockside Lane PMB 83
Key Largo,FL33037 		None   Conservation 5,000

Boys and Girls Club of Martin County

115 SE Lares Avenue
Hobe Sound,FL33475 		None   Humanitarian and Educational 1,000

Busch Wildlife Sanctuary

2500 Jupiter Park Dr
Jupiter,FL334588962 		None   Wildlife Care and Public Awareness 1,000

Chicago Botanic Gardens

1000 Lake Cook Road
Glencoe,IL60022 		None   Conservation 2,500

Choate Rosemary Hall

333 Christian Street
Wallingford,CT06492 		None   Educational 5,000

Christ Memorial Chapel

PO Box 582
Hobe Sound,FL33475 		None   Humanitarian and Religious 1,200

Church of the Holy Spirit

400 E Westminster Road
Lake Forest,IL60045 		None   Humanitarian and Religious 5,600

Cleveland Clinic Martin South Hospital

2100 SE Salerno Rd
Stuart,FL34997 		None   Health 15,000

Columbia University Business School

622 West 113th Street Mail Code
4524
New York,NY10025 		None   Educational 1,000

Cystic Fibrosis Foundation

150 N Michigan Avenue Suite 1550
Chicago,IL60601 		None   Medical Research 20,000

Ducks Unlimited

1 Waterfowl Way
Memphis,TN381202351 		None   Conservation 1,000

Elawa Farm Foundation

1401 Middlefork Drive
Lake Forest,IL60045 		None   Conservation 1,000

Elliot Museum

825 NE Ocean Blvd
Stuart,FL34996 		None   Support of the Arts 500

Ely Chapman Educational Foundation

403 Scammel Street
Marietta,OH45750 		None   Educational 5,000

Episcopal Church at Yale

305 Crown Street
New Haven,CT06510 		None   Religious 500

Evans Scholars Foundation

1 Briar Road
Golf,IL600290301 		None   Education 1,000

Everglades Foundation

18001 Old Cutler Road Suite 625
Palmetto Bay,FL33157 		None   Conservation 5,000

Fifty Vanderbilt Foundation Inc

50 Vanderbilt Avenue
New York,NY10017 		None   Education 1,000

Gorton Community Center

400 East Illinois Road
Lake Forest,IL60045 		None   Civic 1,000

Guardians of Martin County

PO Box 1489
Hobe Sound,FL33475 		None   Florida Conservation 1,000

Guides Trust Foundation

PO Box 88
Islamorada,FL330360088 		None   Conservation 500

Hobe Sound Community Chest

11450 SE Dixie Hwy
Hobe Sound,FL33455 		None   Humanitarian Aid 2,500

Hobe Sound Early Learning Center

11580 SE Gomez Avenue
Hobe Sound,FL33455 		None   Education 1,000

Hobe Sound Nature Center

PO Box 214
Hobe Sound,FL33475 		None   Jupiter Island Conservation 500

Humane Society of the US

1255 23rd Street NW Suite 450
Washington,DC20037 		None   Animal welfare 2,500

Illinois PGA Foundation

2901 West Lake Street Suite A
Glenview,IL60025 		None   Education 263

Jupiter Island Historical Society

PO Box 938
Hobe Sound,FL33475 		None   Arts & Education 150

Jupiter Island Medical Clinic

100 Estrada Square
Hobe Sound,FL33455 		None   Medical 2,500

Jupiter Medical Center Foundation

1210 South Old Dixie Highway
Jupiter,FL33458 		None   Medical 2,500

Lake County Community Foundation

114 South Genessee St Suite 505
Waukegan,IL60085 		None   Civic 500

Lake Forest College

555 North Sheridan Road
Lake Forest,IL600452338 		None   Educational 40,000

Lake Forest Open Lands Association (LFOLA)

350 North Waukegan Road
Lake Forest,IL60045 		None   Conservation 1,000

Lake Forest Preservation Foundation

400 East Illinois Road
Lake Forest,IL60045 		None   Civic Preservation 500

Loaves & Fishes of Hobe Sound

PO Box 98
Hobe Sound,FL33475 		None   Humanitarian Aid 1,000

Macular Degeneration Association

5969 Cattleridge Blvd Suite 100
Sarasota,FL34232 		None   Medical 2,500

National Audubon Society

225 Varick Street 7th Floor
New York,NY100144396 		None   Conservation 1,000

National Multiple Sclerosis Society

659 Tower Avenue First Floor
Hartford,CT061121269 		None   Medical 2,000

National Society of the Colonial Dames of American (NSCDA)

2715 Q Street NW
Washington,DC200073041 		None   Educational 100

New Haven Lawn Club Preservation Trust

193 Whitney Ave
New Haven,CT065113712 		None   Historical Society 500

Ocean Research & Conservation Association (ORCA)

1420 Seaway Drive 2nd Floor
Fort Pierce,FL34949 		None   Ocean Conservation 1,000

Old Elm Scholarship Foundation

800 Old Elm Road
Highland Park,IL600351104 		None   Educational 1,000

Sea Shepherd Conservation Society

209 E Alameda Ave
Burbank,CA915022674 		None   Ocean Conservation 10,000

Society of the Four Arts

2 Four Arts Plaza
Palm Beach,FL33480 		None   Jupiter Island Conservation 1,000

Squash Haven

70 Tower Parkway
New Haven,CT06511 		None   Educational 500

Town Employees Christmas FundTown of Jupiter Island

2 Bridge Road
Hobe Sound,FL33455 		None   Civic 1,000

Toys for Tots Foundation

18251 Quantico Gateway Drive
Triangle,VA22172 		None   Human Services 500

Trout Unlimited Alaska Pebble Mine Bristol Bay

PO Box 7400
Wolly Bugger,WV25438 		None   Conservation 1,000

United Way of Martin County

10 SE Central Pkwy 101
Stuart,FL34994 		None   Community Development 500

USSGA Memorial Fund

PO Box 4459
Greenwich,CT06831 		None   Educational 1,500

Wetlands Initiative

53 W Jackson Blvd Suite 1015
Chicago,IL60604 		None   Conservation 1,000

World Wildlife Fund

1250 24th Street PO Box 97180
Washington,DC20090 		None   Conservation 1,000

WQCS National Public Radio

3209 Virginia Avenue
Ft Pierce,FL34981 		None   Civic 1,000

WTTW 11

5400 North St Louis Avenue
Chicago,IL606254698 		None   Civic 1,000

Yale Alumni Fund

PO Box 1905
New Haven,CT06509 		None   Educational 2,000

Yale University

PO Box 2038
New Haven,CT065212038 		None   Educational 6,500

African Wildlife Foundation

1100 New Jersey Ave
Washington,DC20003 		None   Conservation 1,000

American Lung Association

55 W Wacker Dr
Chicago,IL60601 		None   Medical 50

Buckley Institute

234 Church Street
New Haven,CT06510 		None   Education 2,000

Golden Apple Award EWA

901 W Jackson
Chicago,IL60607 		None   Education 2,500

Interlochen Center for the Arts

4000 J Maddy Pkwy
Interlochen,MI49643 		None   Arts 5,000

Leader Dogs for the Blind

1039 S Rochester Rd
Rochester,MN48307 		None   Human Services 100

Ann & Robert Lurie Children's Hospital

225 E Chicago Ave
Chicago,IL60611 		None   Medical 5,000

March of Dimes

141 W Jackson
Chicago,IL60604 		None   Medical Research 100

MD Anderson Cancer Center

1515 Holcombe Blvd
Houston,TX77030 		None   Medical 1,000

Urban Resource Initiative

301 Prospect St
New Haven,CT06511 		None   Human Services 1,000
Total .................................right arrow 3a 208,563
bApproved for future payment
Total ................................. right arrow 3b 0
Form 990-PF (2023)
Form 990-PF (2023)
Page 12
Part XV-A
Analysis of Income-Producing Activities
Enter gross amounts unless otherwise indicated. Unrelated business income Excluded by section 512, 513, or 514 (e)
Related or exempt
function income
(See instructions.)
1Program service revenue: (a)
Business code 		(b)
Amount 		(c)
Exclusion code 		(d)
Amount
a
b
c
d
e
f
gFees and contracts from government agencies          
2 Membership dues and assessments ....          
3 Interest on savings and temporary cash
investments ........... 		         
4 Dividends and interest from securities ....     14 74,059  
5 Net rental income or (loss) from real estate:
aDebt-financed property......          
bNot debt-financed property.....          
6 Net rental income or (loss) from personal property          
7 Other investment income .....          
8 Gain or (loss) from sales of assets other than
inventory ............ 		    18 194,640  
9 Net income or (loss) from special events:          
10 Gross profit or (loss) from sales of inventory          
11 Other revenue: a
b
c
d
e
12 Subtotal. Add columns (b), (d), and (e) .. 0 268,699 0
13Total. Add line 12, columns (b), (d), and (e)..................
13
268,699
(See worksheet in line 13 instructions to verify calculations.)
Part XV-B
Relationship of Activities to the Accomplishment of Exempt Purposes
Line No.
DownArrow 		Explain below how each activity for which income is reported in column (e) of Part XV-A contributed importantly to
the accomplishment of the foundation’s exempt purposes (other than by providing funds for such purposes). (See
instructions.)
Form 990-PF (2023)
Form 990-PF (2023)
Page 13
Part XVI
Information Regarding Transfers To and Transactions and Relationships With Noncharitable Exempt Organizations
1
Did the organization directly or indirectly engage in any of the following with any other organization described in section 501(c) (other than section 501(c)(3) organizations) or in section 527, relating to political organizations?
Yes
No
a
Transfers from the reporting foundation to a noncharitable exempt organization of:
(1) Cash...................................
1a(1)
 
No
(2) Other assets.................................
1a(2)
 
No
b
Other transactions:
(1) Sales of assets to a noncharitable exempt organization....................
1b(1)
 
No
(2) Purchases of assets from a noncharitable exempt organization..................
1b(2)
 
No
(3) Rental of facilities, equipment, or other assets.......................
1b(3)
 
No
(4) Reimbursement arrangements...........................
1b(4)
 
No
(5) Loans or loan guarantees.............................
1b(5)
 
No
(6) Performance of services or membership or fundraising solicitations................
1b(6)
 
No
c
Sharing of facilities, equipment, mailing lists, other assets, or paid employees..............
1c
 
No
d
If the answer to any of the above is "Yes," complete the following schedule. Column (b) should always show the fair market value
of the goods, other assets, or services given by the reporting foundation. If the foundation received less than fair market value
in any transaction or sharing arrangement, show in column (d) the value of the goods, other assets, or services received.
(a) Line No. (b) Amount involved (c) Name of noncharitable exempt organization (d) Description of transfers, transactions, and sharing arrangements
2a
Is the foundation directly or indirectly affiliated with, or related to, one or more tax-exempt organizations
described in section 501(c) (other than section 501(c)(3)) or in section 527? ...........
b
If "Yes," complete the following schedule.

(a) Name of organization (b) Type of organization (c) Description of relationship
Sign Here
Under penalties of perjury, I declare that I have examined this return, including accompanying schedules and statements, and to the best of my knowledge and belief, it is true, correct, and complete. Declaration of preparer (other than taxpayer) is based on all information of which preparer has any knowledge.
right arrow right arrow
May the IRS discuss this return
with the preparer shown below?
See instructions.
Signature of officer or trustee Date Title
Paid Preparer Use Only Print/Type preparer's name Preparer's Signature Date Check if self-
employed right arrow		 PTIN
Firm's name SmallBullet
 Firm's EIN SmallBullet
Firm's address SmallBullet


 Phone no.
Form 990-PF (2023)
Additional Data


Software ID:  
Software Version:  


Form 990PF - Special Condition Description:
Special Condition Description

TY 2023 AccountingFeesSchedule
Name:
CMB Foundation
EIN:
36-3519496
Category Amount Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
Accounting & Tax Prep Fees 3,521 3,521   0

TY 2023 InvestmentsCorpBondsSchedule
Name:
CMB Foundation
EIN:
36-3519496
Name of Bond End of Year Book Value End of Year Fair Market Value
Fixed Income 117,000 121,438

TY 2023 InvestmentsCorpStockSchedule
Name:
CMB Foundation
EIN:
36-3519496
Name of Stock End of Year Book Value End of Year Fair Market Value
1000 shares Rogers Corp (Held at ML #19296) 165,540 132,070
2500 shares Dycom Industries, Inc (Held At ML #19296) 222,661 287,725
Commodities 105,108 91,206
Emerging Markets 95,590 88,020
International Investments 133,990 142,783
US Equity Funds 1,584,196 2,646,783
US Equity Investments 717,432 1,356,175

TY 2023 OtherAssetsSchedule
Name:
CMB Foundation
EIN:
36-3519496
Description Beginning of Year - Book Value End of Year - Book Value End of Year - Fair Market Value
Accrued dividends 1,002 2,207 2,207


TY 2023 OtherExpensesSchedule
Name:
CMB Foundation
EIN:
36-3519496
Description Revenue and Expenses per Books Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
IL filing fees 15 15   0


TY 2023 OtherIncreasesSchedule
Name:
CMB Foundation
EIN:
36-3519496
Description Amount
Non-dividend distribution 220
Adjustment 358


TY 2023 OtherProfessionalFeesSchedule
Name:
CMB Foundation
EIN:
36-3519496
Category Amount Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
BMO Private Bank - Investment Fees 36,145 36,145   0


TY 2023 TaxesSchedule
Name:
CMB Foundation
EIN:
36-3519496
Category Amount Net Investment Income Adjusted Net Income Disbursements for Charitable Purposes
BMO Private Bank - Foreign Taxes Paid 651 651   0