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Nonprofit · EIN 13-1656610

AMERICAN PHYSICAL SOCIETY

Tax-exempt · COLLEGE PARK, MD 20740

Financials

$118.8M$80.1M2023$106.3M$90.9M2024
Revenue Expenses · by fiscal year end
Financials of AMERICAN PHYSICAL SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$106,332,062$90,947,319$15,384,743$313,014,241$33,931,660$279,082,581
December 31, 2023990$118,837,990$80,092,003$38,745,987$296,409,286$36,163,426$260,245,860
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$9,528,908
of which government grants
$2,379,833
Membership dues
$3,988,893
Program service revenue
$68,538,716
Investment income
$28,118,200
Royalties
$146,238
Net gain from sales of assets
$18,860,320
Other revenue
$146,238

Expenses

Grants and similar amounts paid
$4,159,382
Compensation of officers, directors and key employees
$2,834,236
Salaries, compensation and benefits (total)
$48,890,449
Professional fundraising fees
$0
Legal fees
$778,302
Accounting fees
$164,990
Occupancy
$888,327
Travel
$3,630,390
Depreciation
$83,273
Program services (functional)
$79,297,637
Management and general (functional)
$10,682,335
Fundraising (functional)
$967,347

Balance sheet and other

Total assets, start of year
$296,409,286
Total assets, end of year
$313,014,241
Total liabilities, end of year
$33,931,660
Net assets, end of year
$279,082,581
Land, buildings and equipment
$492,575
Publicly traded securities
$271,806,788
Net assets without donor restrictions
$256,385,561
Net assets with donor restrictions
$22,697,020
Gross unrelated business income
$193,093
Gross receipts
$150,547,520
Employees
346
Volunteers
2,900
Year formed
1914
State of legal domicile
DC

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 for the year ended December 31, 2024, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
JONATHAN BAGGERCHIEF EXECUTIVE OFFICER
Trustee or director, Officer
40$677,147$59,859
RACHEL BURLEYCHIEF PUBLICATIONS OFFICER
Key employee
40$394,222$71,773
JANE HOPKINS GOULDCFOO
Key employee
40$405,087$51,299
FRANCIS SLAKEYCHIEF EXTERNAL AFFAIRS OFFICER
Key employee
40$319,356$70,032
MARK DOYLECHIEF INFORMATION OFFICER
Key employee
40$326,861$58,565
BETH GUNZELCHIEF HUMAN RESOURCES OFFICER
Key employee
40$293,802$23,887
DYLAN MOULTONGLOBAL SALES DIRECTOR
Highest-paid employee
40$252,665$64,373
HASSANA HOWECHIEF EXPERIENCE & ENGAGEMENT
Key employee
40$261,043$36,681
KENNEDY JESSICA THOMASEXECUTIVE EDITOR
Highest-paid employee
40$221,553$62,690
CHRISTINE GIACCONEDIR OF JOURNAL OPERATIONS
Highest-paid employee
40$259,266$20,470
AMY FLATTENDIR OF INTERNATIONAL AFFAIRS
Highest-paid employee
40$239,749$35,150
JEFF LEWANDOWSKIDIR OF PUBLISHING
Highest-paid employee
40$209,307$61,697
SARA CONNERSDIRECTOR OF SPECIAL PROJECTS
Highest-paid employee
40$213,039$10,350
JEANETTE RUSSOCORPORATE SECRETARY
Trustee or director, Officer
40$156,718$57,273
BRAD MARSTONVICE PRESIDENT (as of 1/24)
Trustee or director, Officer
5$0$0
14 more people on this return
NameTitleHours / weekCompensation
DAVID SEILERTREASURER
Trustee or director, Officer
5$0
JOHN DOYLEPRESIDENT-ELECT
Trustee or director, Officer
5$0
ROBERT ROSNERPAST PRESIDENT
Trustee or director, Officer
20$0
YOUNG-KEE KIMPRESIDENT
Trustee or director, Officer
40$0
DAVID WEISSDIRECTOR (as of 1/24)
Trustee or director
4$0
JOHN F WILKERSONDIRECTOR
Trustee or director
4$0
KANDICE TANNERDIRECTOR
Trustee or director
4$0
KAREN HALLBERGDIRECTOR
Trustee or director
4$0
LAURIE MCNEILDIRECTOR
Trustee or director
4$0
NAI-CHANGE YEHDIRECTOR (as of 1/24)
Trustee or director
4$0
PETER SCHIFFERDIRECTOR
Trustee or director
4$0
RANDALL KAMIENEDITOR-IN-CHIEF
Trustee or director
10$0
WILLIAM BARLETTADIRECTOR
Trustee or director
4$0
XUN-LI WANGDIRECTOR (as of 1/24)
Trustee or director
4$0
990 for the year ended December 31, 2023: 28 people
NameTitleHours / weekCompensationOther / benefits
JONATHAN BAGGERCHIEF EXECUTIVE OFFICER
Trustee or director, Officer
40$640,626$104,750
JANE HOPKINS GOULDCFOO
Key employee
40$381,489$92,406
RACHEL BURLEYCHIEF PUBLICATIONS OFFICER
Key employee
40$373,744$65,192
MARK DOYLECHIEF INFORMATION OFFICER
Key employee
40$311,553$62,571
FRANCIS SLAKEYCHIEF EXTERNAL AFFAIRS OFFICER
Key employee
40$302,207$63,177
BETH GUNZELCHIEF HUMAN RESOURCES OFFICER
Key employee
40$263,164$60,790
MONICA PLISCH To 1223DIR OF APS PROGRAMS
Highest-paid employee
40$306,906$17,014
AMY FLATTENDIR OF INTERNATIONAL AFFAIRS
Highest-paid employee
40$235,966$32,854
KENNEDY JESSICA THOMASEXECUTIVE EDITOR
Highest-paid employee
40$209,307$56,250
LENNY MARKSTECHNICAL LEAD
Highest-paid employee
40$208,074$56,067
CHRISTINE GIACCONEDIR OF JOURNAL OPERATIONS
Highest-paid employee
40$241,220$19,026
HASSANA HOWECHIEF EXPERIENCE & ENGAGEMENT
Key employee
40$203,474$21,447
JEANETTE RUSSOCORPORATE SECRETARY
Trustee or director, Officer
40$158,263$51,874
FRANCES HELLMANPAST PRESIDENT
Trustee or director, Officer
20$0$0
ROBERT ROSNERPRESIDENT
Trustee or director, Officer
40$0$0
YOUNG-KEE KIMPRESIDENT-ELECT
Trustee or director, Officer
5$0$0
JOHN DOYLEVICE PRESIDENT
Trustee or director, Officer
5$0$0
DAVID SEILERTREASURER
Trustee or director, Officer
5$0$0
WILLIAM BARLETTADIRECTOR
Trustee or director
4$0$0
KAREN HALLBERGDIRECTOR
Trustee or director
4$0$0
BEVERLY KARPLUS HARTLINEDIRECTOR
Trustee or director
4$0$0
LAURIE MCNEILDIRECTOR
Trustee or director
4$0$0
ROBERT MCKEOWNDIRECTOR
Trustee or director
4$0$0
PETER SCHIFFERDIRECTOR
Trustee or director
4$0$0
KANDICE TANNERDIRECTOR
Trustee or director
4$0$0
JOHN F WILKERSONDIRECTOR
Trustee or director
4$0$0
LANELL WILLIAMSDIRECTOR
Trustee or director
4$0$0
RANDALL KAMIENEDITOR-IN-CHIEF
Trustee or director
10$0$0

Address and contacts

Address (IRS master file)
1 PHYSICS ELLIPSE, COLLEGE PARK, MD 20740-3841
In care of
% SANDY WELDON DIRECTOR
Principal officer (990 for 2024)
JONATHAN BAGGER, ONE PHYSICS ELLIPSE, COLLEGE PARK, MD 207403844
Signed the 990
JONATHAN BAGGER, CHIEF EXECUTIVE OFFICER
Phone
(301) 209-3210
Return prepared by
BDO USA

Mission

THE AMERICAN PHYSICAL SOCIETY IS AN EDUCATIONAL AND SCIENTIFIC ORGANIZATION WHOSE OBJECTIVE IS TO ADVANCE PHYSICS BY FOSTERING A VIBRANT, INCLUSIVE, AND GLOBAL COMMUNITY DEDICATED TO SCIENCE AND SOCIETY. APS IS A MEMBERSHIP ASSOCIATION WHICH PUBLISHES PHYSICS JOURNALS, CONDUCTS SCIENTIFIC MEETINGS, AND ENGAGES IN EDUCATIONAL, PUBLIC AFFAIRS AND OUTREACH PROGRAMS.

990 for the year ended December 31, 2024

Program accomplishments

  • PHYSICS RESEARCH PROGRAMS: RESEARCH PUBLICATIONS
    Expenses $40,428,547 · revenue $50,271,424
  • PHYSICS RESEARCH PROGRAMS: SCIENTIFIC MEETINGS
    Expenses $15,138,992 · grants $209,313 · revenue $11,800,491
  • PHYSICS RESEARCH PROGRAMS: EDUCATION AND OUTREACH
    Expenses $13,532,745 · grants $2,886,727 · revenue $6,461,539
  • PHYSICS RESEARCH PROGRAMS: MEMBERSHIP OPERATIONS
    Expenses $9,346,951 · grants $255,727 · revenue $5,262
  • PHYSICS RESEARCH PROGRAMS: PRIZES AND AW
    Expenses $850,402 · grants $807,615

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
13-1656610
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1945
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$313,014,241
Income (IRS master file)
$150,547,520

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$106,332,062$90,947,319$313,014,241XML
990-TDecember 2024–––IRS
990December 2023$118,837,990$80,092,003$296,409,286XML
990-TDecember 2023–––IRS
990December 2022$71,212,099$71,210,235$262,299,827IRS
990-TDecember 2022–––IRS
990December 2021–––IRS
990-TDecember 2021–––IRS
990December 2020–––IRS
990-TDecember 2020–––IRS
990December 2018–––IRS
990December 2017–––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 13-1656610).

Questions about AMERICAN PHYSICAL SOCIETY

What is the EIN of AMERICAN PHYSICAL SOCIETY?
The employer identification number (EIN) of AMERICAN PHYSICAL SOCIETY is 13-1656610.
Is AMERICAN PHYSICAL SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1945.
Are donations to AMERICAN PHYSICAL SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does AMERICAN PHYSICAL SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of AMERICAN PHYSICAL SOCIETY due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did AMERICAN PHYSICAL SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of AMERICAN PHYSICAL SOCIETY?
The 990 for the year ended December 31, 2024 names JONATHAN BAGGER.
Who are the officers and directors of AMERICAN PHYSICAL SOCIETY?
The 990 for the year ended December 31, 2024 lists 29 people; 14 received compensation from the organization, the highest $677,147 (JONATHAN BAGGER, CHIEF EXECUTIVE OFFICER).
How much revenue does AMERICAN PHYSICAL SOCIETY have?
On its 990 for the year ended December 31, 2024 it reported revenue of $106,332,062, expenses of $90,947,319 and total assets of $313,014,241 at year end.

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