Form 990 for tax year 2024
Filed by AMERICAN PHILOSOPHICAL SOCIETY.
Totals
- Total revenue
- $20,391,804
- Total expenses
- $15,571,638
- Contributions and grants received
- $3,265,366
- Grants paid
- $1,754,046
- Program service revenue
- $150,943
- Investment income
- $16,906,951
- Other revenue
- $68,544
- Total assets, end of year
- $310,248,157
- Total liabilities, end of year
- $7,715,566
- Net assets or fund balances, end of year
- $302,532,591
- Program services expenses (Part IX)
- $11,302,992
- Management and general expenses
- $3,472,986
- Fundraising expenses
- $795,660
- Program service expenses (Part III)
- $11,302,992
Program services were 72.6% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.
Line items
Every line the filer filed in Parts VIII, IX and X, as filed and in filed order. Blank columns are left out, and the lines are not forced to add up to the totals above.
Revenue
Part VIII, the statement of revenue.
-
1e · Government grants (contributions)
$33,879
-
1f · All other contributions, gifts and grants
$3,231,487
-
1g · Noncash contributions included above
$279,571
-
2a · Program service revenue: Publications sales
total $150,943 · related or exempt $150,943
-
3 · Investment income
total $6,581,784 · excluded $6,581,784
-
4 · Income from investment of tax-exempt bond proceeds
total $0
-
5 · Royalties
total $0
-
6a · Gross rents
real property $20,255
-
6c · Rental income or loss
real property $20,255
-
6d · Net rental income or loss
total $20,255 · excluded $20,255
-
7a · Gross sales of assets other than inventory
securities $27,987,002
-
7b · Less cost or other basis and sales expenses
securities $17,661,835
-
7c · Gain or loss
securities $10,325,167
-
7d · Net gain or loss
total $10,325,167 · excluded $10,325,167
-
8c · Net income from fundraising events
total $0
-
9c · Net income from gaming
total $0
-
10c · Net income from sales of inventory
total $0
-
11a · Other revenue: Digitization Royalties
total $2,581 · excluded $2,581
-
11b · Other revenue: Exhibition Sales
total $30,923 · excluded $30,923
-
11c · Other revenue: Misc. Inc. Photo Duplicat
total $13,664 · excluded $13,664
-
11d · All other revenue
total $1,121 · excluded $1,121
-
11e · Other revenue, total
$48,289
Functional expenses
Part IX, the statement of functional expenses.
-
1 · Grants to domestic organizations and governments
total $15,000 · program services $15,000
-
2 · Grants to domestic individuals
total $1,591,346 · program services $1,591,346
-
3 · Grants to foreign organizations and individuals
total $147,700 · program services $147,700
-
4 · Benefits paid to or for members
total $0
-
5 · Compensation of officers, directors and key employees
total $1,239,765 · program services $271,636 · management and general $844,153 · fundraising $123,976
-
6 · Compensation of disqualified persons
total $0
-
7 · Other salaries and wages
total $3,982,801 · program services $3,386,876 · management and general $242,736 · fundraising $353,189
-
8 · Pension plan contributions
total $242,291 · program services $195,541 · management and general $19,356 · fundraising $27,394
-
9 · Other employee benefits
total $735,090 · program services $627,345 · management and general $47,153 · fundraising $60,592
-
10 · Payroll taxes
total $366,024 · program services $273,878 · management and general $60,314 · fundraising $31,832
-
11a · Fees: management
total $0
-
11b · Fees: legal
total $55,363 · management and general $55,363
-
11c · Fees: accounting
total $111,332 · management and general $111,332
-
11d · Fees: lobbying
total $0
-
11e · Fees: professional fundraising services
total $0
-
11f · Fees: investment management
total $994,886 · management and general $994,886
-
11g · Fees: other
total $0
-
12 · Advertising and promotion
total $0
-
13 · Office expenses
total $65,830 · management and general $65,830
-
14 · Information technology
total $147,571 · management and general $147,571
-
15 · Royalties
total $0
-
16 · Occupancy
total $909,846 · program services $909,846
-
17 · Travel
total $0
-
18 · Travel or entertainment for public officials
total $0
-
19 · Conferences, conventions and meetings
total $499,197 · program services $499,197
-
20 · Interest
total $0
-
21 · Payments to affiliates
total $0
-
22 · Depreciation, depletion and amortization
total $677,885 · program services $581,445 · management and general $92,000 · fundraising $4,440
-
23 · Insurance
total $118,016 · management and general $118,016
-
24a · Other expenses: Printing and Publications
total $632,107 · program services $632,107
-
24b · Other expenses: Library operations
total $596,599 · program services $596,599
-
24c · Other expenses: FASB benefits expenses
total $428,313 · program services $305,923 · management and general $83,292 · fundraising $39,098
-
24d · Other expenses: Special Purposes Library
total $309,954 · program services $309,954
-
24e · All other expenses
total $1,704,722 · program services $958,599 · management and general $590,984 · fundraising $155,139
Balance sheet
Part X, book values.
-
1 · Cash, non-interest-bearing
beginning of year $7,324,332 · end of year $712,018
-
2 · Savings and temporary cash investments
beginning of year $13,430,560 · end of year $10,503,888
-
3 · Pledges and grants receivable
beginning of year $723 · end of year $52,750
-
4 · Accounts receivable
end of year $0
-
5 · Loans and receivables from officers and key people
end of year $0
-
6 · Loans and receivables from disqualified persons
end of year $0
-
7 · Other notes and loans receivable
end of year $0
-
8 · Inventories for sale or use
end of year $0
-
9 · Prepaid expenses and deferred charges
beginning of year $345,720 · end of year $449,978
-
10a · Land, buildings and equipment: cost or other basis
$32,356,622
-
10b · Land, buildings and equipment: accumulated depreciation
$20,014,076
-
10c · Land, buildings and equipment, net
beginning of year $12,526,881 · end of year $12,342,546
-
11 · Investments: publicly traded securities
beginning of year $190,448,076 · end of year $207,388,639
-
12 · Investments: other securities
beginning of year $67,959,064 · end of year $78,798,337
-
13 · Investments: program-related
end of year $0
-
14 · Intangible assets
end of year $0
-
15 · Other assets
beginning of year $2 · end of year $1
-
17 · Accounts payable and accrued expenses
beginning of year $417,615 · end of year $196,386
-
25 · Other liabilities
beginning of year $7,805,290 · end of year $7,519,180
-
27 · Net assets without donor restrictions
beginning of year $40,227,807 · end of year $41,926,525
-
28 · Net assets with donor restrictions
beginning of year $243,584,646 · end of year $260,606,066
Mission and programs · 2024
Mission
The American Philosophical Society, the oldest learned society in the United States, was founded in 1743 by Benjamin Franklin for the purpose of "promoting useful knowledge." In the 21st century the Society sustains this mission in three principal ways. It honors and engages distinguished scientists, humanists, social scientists, and leaders in civic and cultural affairs through elected membership and opportunities for interdisciplinary, intellectual fellowship, particularly in the semi-annual Meetings in Philadelphia. It supports research and discovery through grants and fellowships, lectures, publications, prizes, exhibitions, and public education. It serves scholars through a research library of manuscripts and other collections internationally recognized for their enduring historic value. The American Philosophical Society's current activities reflect the founder's spirit of inquiry, provide a forum for the free exchange of ideas, and convey the conviction of its members that intel
Activities or mission (Part I)
The American Philosophical Society, the oldest learned society in the United States, was founded in 1743 by Benjamin Franklin for the purpose of "promoting useful knowledge." In the 21st century the Society sustains this mission with various programs described further within.
-
The Society's printed Yearbook for 2024 gives a complete account of the Society's activities. A copy will be furnished upon request. Details concerning contributions and research grants are on hand and are available for inspection at the Society's office.
Expenses $11,302,992 · Grants $1,754,046 · Revenue $150,943
As filed on the 2024 return.
Listed in Part VII
-
Dr Robert M Hauser
CEO
- Total calculated
- $376,275
- From this org
- $341,000
- From related orgs
- $0
- Other
- $35,275
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $341,000
- Bonus
- not reported
- Other
- not reported
- Deferred
- $27,280
- Nontaxable benefits
- $7,995
- Filer's total
- $376,275
-
Michelle McDonald
Dir of Library
- Total calculated
- $301,818
- From this org
- $257,373
- From related orgs
- $0
- Other
- $44,445
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $257,373
- Bonus
- not reported
- Other
- not reported
- Deferred
- $16,500
- Nontaxable benefits
- $27,945
- Filer's total
- $301,818
-
John Wolfe
Financial Offic
- Total calculated
- $300,742
- From this org
- $251,750
- From related orgs
- $0
- Other
- $48,992
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $251,750
- Bonus
- not reported
- Other
- not reported
- Deferred
- $5,793
- Nontaxable benefits
- $43,199
- Filer's total
- $300,742
-
Dr Patrick Spero
CEO
- Total calculated
- $260,930
- From this org
- $231,916
- From related orgs
- $0
- Other
- $29,014
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $231,916
- Bonus
- not reported
- Other
- not reported
- Deferred
- $15,000
- Nontaxable benefits
- $14,014
- Filer's total
- $260,930
-
Linda Jacobs
Development Direct
- Total calculated
- $222,211
- From this org
- $192,610
- From related orgs
- $0
- Other
- $29,601
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $192,610
- Bonus
- not reported
- Other
- not reported
- Deferred
- $15,408
- Nontaxable benefits
- $14,193
- Filer's total
- $222,211
-
Gary David
Asso Dir of Collec
- Total calculated
- $176,288
- From this org
- $139,050
- From related orgs
- $0
- Other
- $37,238
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $139,050
- Bonus
- not reported
- Other
- not reported
- Deferred
- $11,124
- Nontaxable benefits
- $26,114
- Filer's total
- $176,288
-
Mary Grace Wahl
Assoc Dir of Colle
- Total calculated
- $159,993
- From this org
- $113,810
- From related orgs
- $0
- Other
- $46,183
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $113,810
- Bonus
- not reported
- Other
- not reported
- Deferred
- $9,440
- Nontaxable benefits
- $36,743
- Filer's total
- $159,993
-
Bayard Miller
Assoc Dir of Digit
- Total calculated
- $147,161
- From this org
- $120,120
- From related orgs
- $0
- Other
- $27,041
- Hours/week
- 40
-
Linda Musumeci
Dir of Grants & Fe
- Total calculated
- $133,218
- From this org
- $122,802
- From related orgs
- $0
- Other
- $10,416
- Hours/week
- 40
-
Dr Joanna Aizenberg
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Julia H Gaisser
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Jacqueline K Barton
V.P./Council
- Total calculated
- $0
- Hours/week
- 1
-
Dr Dusa McDuff
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Clyde F Barker
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Linda K Kerber
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Vijay Kumar
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Jianguo Liu
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Anne Case
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr David Skorton
Councilor/Secy
- Total calculated
- $0
- Hours/week
- 1
-
Dr Richard E Lenski
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
John S Reed
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Linda Greenhouse
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Nina Jablonski
V.P./Council
- Total calculated
- $0
- Hours/week
- 1
-
Sir Mark Thompson
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Kathleen Hall Jamieson
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Andrew Delbanco
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Paul W Kroll
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Leslie C Aiello
Curator/Council
- Total calculated
- $0
- Hours/week
- 1
-
Mr Richard B Worley
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Jonathan R Cole
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Ronald M Fairman
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Margaret H Marshall
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Marna C Whittington
Councilor/Treas
- Total calculated
- $0
- Hours/week
- 1
-
Dr Alan S Blinder
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Robert James Miller
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Harriet Zuckerman
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr David Hollinger
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Keith S Thomson
Curator/Council
- Total calculated
- $0
- Hours/week
- 1
-
Dr Roger S Bagnall
Pres/Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr William H Hooke
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr Caroline W Bynum
Councilor/V.P.
- Total calculated
- $0
- Hours/week
- 1
-
Dr Douglas S Massey
Councilor
- Total calculated
- $0
- Hours/week
- 1
-
Dr John C Van Horne
Councilor
- Total calculated
- $0
- Hours/week
- 1
Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us.
Schedule J
Answered yes
- 1a · Health or social club dues or initiation fees
- 2 · Substantiation required before reimbursing expenses
- 3 · Compensation survey or study
- 3 · Approval by the board or compensation committee
Answered no
- 1b · Written policy on the line-1a expenses
- 4a · Severance or change-of-control payment
- 4b · Supplemental nonqualified retirement plan
- 4c · Equity-based compensation arrangement
- 5a · Pay contingent on this organization's revenues
- 5b · Pay contingent on a related organization's revenues
- 6a · Pay contingent on this organization's net earnings
- 6b · Pay contingent on a related organization's net earnings
- 7 · Other non-fixed payments
- 8 · Paid under the initial-contract exception
The filer's explanations (Part III)
- Part I, Line 1a: Relevant information in regards to selections on 1a.
- The Society paid $4,014 for social club memberships for the Orgnization's CEO.
- Part I, Line 1b: Reason for not following policy regarding payment provisions for expenses
- The Society has no written policy regarding compensation of this nature.The Society's Executive Officer and President decided together to provide this compensation to the Officer.
Part I's answers as filed. A line not listed was left unanswered; on lines 1a and 3 that means the box was not checked.
Grants on this return
-
The Papers of Benjamin Franklin
$15,000
Franklin Papers Project
Provenance
- Return type
- form_990
- Tax year
- 2024
- Filed
- 3 November 2025
- IRS schema version
- 2024v5.2
- Source object
- 202523079349302742
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