Civic Intelligence

Parkinson Study Group Inc

EIN 46-5749468 • 501(c)3 • Charlestown, MA

Profile

The psg aims to advance knowledge about the cause(s), disease progression and treatment of pd and related disorders.

114 16th Street STE 3002Charlestown, MA 02129

www.parkinson-study-group.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

49th percentile

0.06x

Higher debt load relative to assets than 49% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Liabilities / Revenue

48th percentile

0.07x

Higher debt load relative to revenue than 48% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Net Margin

31st percentile

-3.4%

Higher net margin than 31% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Top Officer Pay

Score unavailable

No value available

No filing with officer rows is available for this organization yet.

Asset Growth

23rd percentile

-4.9%

Faster asset growth than 23% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Revenue Growth

79th percentile

34%

Faster revenue growth than 79% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Assets

Up

$1,411,276

Up $244,442 (+21%) from 2024

Liabilities

Up

$121,612

Up $53,669 (+79%) from 2024

Net Assets

Up

$1,289,664

Up $190,773 (+17%) from 2024

Revenue

Up

$1,837,674

Up $871,517 (+90%) from 2024

Expenses

Up

$1,646,901

Up $648,316 (+65%) from 2024

Net Income

Up

$190,773

Up $223,201 (+688%) from 2024

Trend Graphs

Balance Sheet Trend

Grouped bars show assets, liabilities, and net assets across loaded filings.

$1.5M$1.0M$500K$0Assets 2019: $307,019Liabilities 2019: $0Net Assets 2019: $307,0192019Assets 2020: $560,068Liabilities 2020: $242,116Net Assets 2020: $317,9522020Assets 2021: $748,952Liabilities 2021: $25,862Net Assets 2021: $723,0902021Assets 2022: $1,102,918Liabilities 2022: $17,733Net Assets 2022: $1,085,1852022Assets 2023: $1,227,230Liabilities 2023: $95,911Net Assets 2023: $1,131,3192023Assets 2024: $1,166,834Liabilities 2024: $67,943Net Assets 2024: $1,098,8912024Assets 2025: $1,411,276Liabilities 2025: $121,612Net Assets 2025: $1,289,6642025

Highlighted filing

2025

Assets$1,411,276
Liabilities$121,612
Net Assets$1,289,664

Operations Trend

Revenue, expenses, and net income by year, with the latest filing highlighted.

$2.0M$1.0M$0-$1.0MRevenue 2019: $224,943Expenses 2019: $467,924Net Income 2019: -$242,9812019Revenue 2020: $377,700Expenses 2020: $311,600Net Income 2020: $66,1002020Revenue 2021: $438,859Expenses 2021: $383,721Net Income 2021: $55,1382021Revenue 2022: $898,835Expenses 2022: $480,686Net Income 2022: $418,1492022Revenue 2023: $721,063Expenses 2023: $675,644Net Income 2023: $45,4192023Revenue 2024: $966,157Expenses 2024: $998,585Net Income 2024: -$32,4282024Revenue 2025: $1,837,674Expenses 2025: $1,646,901Net Income 2025: $190,7732025

Highlighted filing

2025

Revenue$1,837,674
Expenses$1,646,901
Net Income$190,773

Filings

Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Oct 1, 2024 to Sep 30, 2025
Signed
Feb 13, 2026
Return Version
2024v5.2
Gross Receipts
$1,837,674
Mission and Program Overview

Mission

The psg aims to advance knowledge about the cause(s), disease progression and treatment of pd and related disorders.

See Schedule O

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$888,175$821,932▼ $66,243
Accounts Receivable$278,659$632,210▲ $353,551
Pledges and Grants Receivable-$-46,326-
Total Assets$1,166,834$1,411,276▲ $244,442
Other Assets Total-$3,460-
Liabilities
Accounts Payable and Accrued Expenses$19,543$105,135▲ $85,592
Other Liabilities$48,400$16,477▼ $31,923
Total Liabilities$67,943$121,612▲ $53,669
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$1,098,891$1,289,664▲ $190,773
Total Net Assets Fund Balance$1,098,891$1,289,664▲ $190,773
Total Liabilities and Net Assets / Fund Balance$1,166,834$1,411,276▲ $244,442
Compensation and Service Providers

Board Members and Trustees

NameTitle
Andrew SiderowfChair
Joohi Jimenez-ShahedCo-Chair
Aleksandar VidenovicBoard Member
Amy ChesireBoard Member
Cindy CasaceliBoard Member
Eric MacKlinBoard Member
Irene MalatyBoard Member
Mary Maral MouradianBoard Member
Ruth SchneiderBoard Member
Vanessa HinsonBoard Member
Sarah SperlingExecutive Director
Donna MoszkowiczEx-officio
Revenue and Support

Revenue Composition

Contributions and Grants
$969,841
Program Service Revenue
$867,833
Investment Income
$0
Other Revenue
$0
All Other Contributions
$625,700
Change in Net Assets
$190,773

Audited Revenue Reconciliation

Revenue per Audited Statements
$1,837,674
Total Revenue per Audited Statements
$1,837,674
Total Revenue per Form 990
$1,837,674
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$1,282,566
Salaries, Compensation, and Employee Benefits$281,632
Grants and Similar Amounts Paid$82,703
Professional Fundraising Fees$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Conferences and Meetings$787,656--$787,656
Fees for Services Management$163,268--$163,268
Comp Disqual Persons$134,690--$134,690
Other Salaries and Wages-$129,185-$129,185
Grants to Domestic Orgs$82,703--$82,703
Fees for Services Accounting-$59,200-$59,200
Advertising-$53,852-$53,852
Fees for Services Other$16,335$32,752-$49,087
Information Technology-$41,933-$41,933
Insurance-$36,976-$36,976
Office Expenses-$31,666-$31,666
Payroll Taxes-$10,252-$10,252
Fees for Services Legal-$8,350-$8,350
Pension Plan Contributions-$7,505-$7,505
Other Expenses-$3,212-$3,212
All Other Expenses-$2,281-$2,281
Occupancy-$2,004-$2,004
Interest-$1,005-$1,005
Total Functional Expenses$1,184,652$462,249$0$1,646,901

Audited Expense Reconciliation

Line ItemAmount
Expenses per Audited Statements$1,646,901
Total Expenses per Audited Statements$1,646,901
Total Expenses per Form 990$1,646,901
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Amex$10,909
Federal Tax$3,122
Guideline Traditional 401k$1,405
OH LOcal Tax$828
OH Income Tax$275
OH Unemployment Tax$215
PA Income Tax$141
Payroll Liabilities$63
Workmens Comp$-481
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Audit committee
Yes
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Members or stockholder classes and rights Part VI line 6

There are two membership classes within the organization consisting of voting members and associate members.

Member election for additional members Part VI line 7A

The voting members of the organization elect the members of the executive committee as term limits expire.

Form 990 governing body review Part VI line 11

Executive committee members are provided a copy of form 990 and a presentation is made at a commettee meeting prior to submission.

Conflict of interest policy compliance Part VI line 12C

Disclosure forms are required to be completed by executive committee members and members of standing committees and working groups. These forms are updated when there is a change in the status of a psg member regarding a potential conflict of interest. Disclosures are reviewed by legal counsel as needed. Those deemed to be in violation or potential violation are reviewed by members of the standards committee. Recommendations as to the management of these conflicts are then forwarded by the chair of the standards committee to the executive committee for any action necessary.

Form 990 availability to public Part VI line 18

18:copies of form 990 and the organizations financial statements are available for public inspection online with the irs and the massachusetts attorney general.

Governing documents etc available to public Part VI line 19

Copies of governing documents and conflict of interest policy are available for public inpection online at the psg website and with the massachusetts attorney general.

Part VII response or note to any other line in Part VII

FORM 990, PART VII, SECTION AIN ACCORDANCE WITH IRS GUIDELINES REPORTABLE COMPENSATION INClUDES COMPENSATION FOR INDEPENDENT CONTRACTOR SERVICES TO THE FILING ORGANIZATION.

Filing and Contact Details

Filer

Filer Name
Parkinson Study Group Inc
EIN
46-5749468
In Care Of
% Sarah Sperling
Address
114 16th Street STE 3002, Charlestown, MA 02129

Signing Officer

Name
Sarah Sperling
Title
Executive Director
Phone
5104148534
Signed
2026-02-13
Discuss with paid preparer
No

Organization Details

Formed
1986
Legal Domicile
Ma
Voting Board Members
12
Independent Board Members
10
Employees
1

Preparer

Firm
Wasilidas & Kulik CPA Pc
Address
945 CONCORD STREET SUITE 109, Framingham, MA 01701
Preparer
Ashraf Wasilidas CPA
Phone
6174626651
Supplemental Narrative

Additional Explanations

Explanation of other changes in net assets or fund balances Part XI line 9

Prior year adjustment to include adjustment for opening balance liabilities and opening balance equity

Part III response or note to any other line in Part III

Form 990, part iii, line 1: to make substantial advances in our understanding and treatment of parkinsons disease and other parkinsonian disorders; working as an efficient, collaborative network of talented clinicians and scientists and operating under a supportive and proactive leadership with broad backing from government, industry, foundation, and patient stake-holders in the parkinson community.

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IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc5OH Unemployment Tax
IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc6PA Income Tax
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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0THERE ARE TWO MEMBERSHIP CLASSES WITHIN THE ORGANIZATION CONSISTING OF VOTING MEMBERS AND ASSOCIATE MEMBERS.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1THE VOTING MEMBERS OF THE ORGANIZATION ELECT THE MEMBERS OF THE EXECUTIVE COMMITTEE AS TERM LIMITS EXPIRE.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2EXECUTIVE COMMITTEE MEMBERS ARE PROVIDED A COPY OF FORM 990 AND A PRESENTATION IS MADE AT A COMMETTEE MEETING PRIOR TO SUBMISSION.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt3DISCLOSURE FORMS ARE REQUIRED TO BE COMPLETED BY EXECUTIVE COMMITTEE MEMBERS AND MEMBERS OF STANDING COMMITTEES AND WORKING GROUPS. THESE FORMS ARE UPDATED WHEN THERE IS A CHANGE IN THE STATUS OF A PSG MEMBER REGARDING A POTENTIAL CONFLICT OF INTEREST. DISCLOSURES ARE REVIEWED BY LEGAL COUNSEL AS NEEDED. THOSE DEEMED TO BE IN VIOLATION OR POTENTIAL VIOLATION ARE REVIEWED BY MEMBERS OF THE STANDARDS COMMITTEE. RECOMMENDATIONS AS TO THE MANAGEMENT OF THESE CONFLICTS ARE THEN FORWARDED BY THE CHAIR OF THE STANDARDS COMMITTEE TO THE EXECUTIVE COMMITTEE FOR ANY ACTION NECESSARY.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt418:COPIES OF FORM 990 AND THE ORGANIZATIONS FINANCIAL STATEMENTS ARE AVAILABLE FOR PUBLIC INSPECTION ONLINE WITH THE IRS AND THE MASSACHUSETTS ATTORNEY GENERAL.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt5COPIES OF GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY ARE AVAILABLE FOR PUBLIC INPECTION ONLINE AT THE PSG WEBSITE AND WITH THE MASSACHUSETTS ATTORNEY GENERAL.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt6Prior year adjustment to include adjustment for opening balance liabilities and opening balance equity
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt7FORM 990, PART III, LINE 1: TO MAKE SUBSTANTIAL ADVANCES IN OUR UNDERSTANDING AND TREATMENT OF PARKINSONS DISEASE AND OTHER PARKINSONIAN DISORDERS; WORKING AS AN EFFICIENT, COLLABORATIVE NETWORK OF TALENTED CLINICIANS AND SCIENTISTS AND OPERATING UNDER A SUPPORTIVE AND PROACTIVE LEADERSHIP WITH BROAD BACKING FROM GOVERNMENT, INDUSTRY, FOUNDATION, AND PATIENT STAKE-HOLDERS IN THE PARKINSON COMMUNITY.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt8FORM 990, PART VII, SECTION AIN ACCORDANCE WITH IRS GUIDELINES REPORTABLE COMPENSATION INClUDES COMPENSATION FOR INDEPENDENT CONTRACTOR SERVICES TO THE FILING ORGANIZATION.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Members or stockholder classes and rights Part VI line 6
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Member election for additional members Part VI line 7a
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Form 990 governing body review Part VI line 11
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3Conflict of interest policy compliance Part VI line 12c
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc4Form 990 availability to public Part VI line 18
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc5Governing documents etc available to public Part VI line 19
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc6Explanation of other changes in net assets or fund balances Part XI line 9
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc7Part III response or note to any other line in Part III
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc8Part VII response or note to any other line in Part VII
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