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Community Bank System

cbu · NYSE Financial Services
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Ticker cbu
Exchange NYSE
Sector Financial Services
Industry Banks - Regional
Employees 1001-5000
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FY2024 Annual Report · Community Bank System
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Diversified Growth.
PROVEN HISTORY.
2024
ANNUAL
REPORT

1
Community Financial System, Inc. (CFSI) is a diversified financial services enterprise that is focused on four main business lines – 
banking, employee benefit services, insurance services and wealth management services.
Its banking subsidiary, Community Bank, N.A. is among the country’s 100 largest banking institutions with over $16 billion in 
assets and operates approximately 200 customer facilities across Upstate New York, Northeastern Pennsylvania, Vermont, and 
Western Massachusetts. 
The Company’s Benefit Plans Administrative Services, Inc. (BPAS) subsidiary is a leading provider of employee benefits 
administration, trust services, collective investment fund administration, and actuarial consulting services to customers on a 
national scale. 
The Company’s OneGroup NY, Inc. (OneGroup) subsidiary offers personal and commercial and other risk management products 
and services. 
The Company also offers comprehensive financial planning, trust administration and wealth management services through its 
Wealth Management operating unit.
The Company is listed on the New York Stock Exchange and the Company’s stock trades under the symbol CBU.
Community Financial System, Inc.
ABOUT US
BANKING SERVICES
INSURANCE SERVICES 
Businesses
WEALTH MANAGEMENT SERVICES
EMPLOYEE BENEFIT SERVICES

Community Financial System, Inc. Annual Report 2024  |  2
Table of Contents
Letter to Shareholders  ..........................................................................................................3
President and CEO, Community Financial System, Inc.
Performance Highlights .........................................................................................................6
Selected Financial Highlights ..............................................................................................8
Excellence Recognized ..........................................................................................................9
Business Segments  .............................................................................................................. 10
Message from Jeffrey Levy .................................................................................................11
SVP, Chief Banking Officer, Community Bank, N.A.
Message from Pierre Morrisseau ......................................................................................13
CIC, President and CEO, OneGroup
Message from Michael Cerminaro ...................................................................................15
President and CEO, Community Bank Wealth Management
Message from Paul Neveu ..................................................................................................17
President and CEO, BPAS
Executive Management .......................................................................................................21
Board of Directors .................................................................................................................22
Administration  ....................................................................................................................... 23
Branch Listing .........................................................................................................................24
Corporate / Shareholder Information   .........................................................................26
Lake Placid, New York

3
I stepped into the President & CEO role on January 1, 2024 after a smooth 
transition and with as much preparation as possible.
With the benefit of a year behind me, I have come to appreciate that the 
gamut of things that come across my desk is truly fascinating and hard to 
truly prepare for. With that said, I often tend to reset back to my big “To 
Dos” below:
VISION AND STRATEGY
This past September we hosted an Investor Day at the New York Stock 
Exchange. We talked a lot about the evolution of our Company into a 
Financial System, not just a Bank System (and changed our holding 
company name accordingly). We have now formally organized ourselves 
around our four wonderful businesses – Banking, Insurance Services,  
Wealth Management Services and Employee Benefit Services. Here is 
why this is important to all of us as shareholders – for various reasons 
outside of our control, the banking sector has underperformed the 
S&P 500 for the majority of the past 20 years. Financial services more 
broadly have done better, and certain subsegments of the financials 
sector have done really well – including insurance brokerage, wealth 
management, and processing/services related businesses. We deeply 
love our Banking business, it is the backbone of our Company and we 
take pride both in its performance and in its impact on our communities. 
We also feel very fortunate that we have approximately one third of our 
total revenues coming from sectors that have been outperforming. I don’t 
know how things may change going forward but we are in the business 
of permanence, and permanence is hard to build if you have only one 
leg on your stool and it goes in and out of favor by the markets. By both 
In 2024, we reinforced 
our vision as a diversified 
financial system, 
balancing growth, 
stability, and long-
term value creation. 
By investing in our 
people, expanding our 
services, and maintaining 
disciplined capital 
allocation, we continued 
to build a company 
designed for permanence. 
As we move into 2025, 
our focus remains on 
delivering sustainable 
growth, strengthening our 
communities, and driving 
above average returns 
with below average risk. 
Dimitar A. Karaivanov 
President and CEO,
Community Financial System, Inc.
2024 operating 
noninterest revenues1
derived from its financial 
services businesses.
74%
1 Operating noninterest revenues is a non-GAAP measure. A reconciliation of GAAP to 
Non-GAAP measures is provided in Item 7, Table 20 of the Company’s Annual Report on 
Form 10-K for the year ended December 31, 2024.
Diversified Growth
TO OUR SHAREHOLDERS 
AND EMPLOYEES,

Community Financial System, Inc. Annual Report 2024  |  4
design and good fortune our evolution has been almost the opposite of 
the broader banking sector and today approximately 40% of our revenues 
come from stable, subscription-like fee income streams as compared to 
less than 19% for the broader banking sector.
I would encourage all of you interested to review the recording of the 
Investor Day for a deeper look. You can really see the permanence in each 
one of our businesses evidenced in the consistent, steady, revenue growth 
in each line and overall revenue growth regardless of the ups and downs 
of the business cycle. To put it simply – our vision and strategy is to keep 
growing a diversified financial services company, maintain a low volatility 
profile and provide for sustainable growth in earnings and dividends.
PUTTING THE RIGHT PEOPLE IN THE RIGHT SEATS
Execution of the strategy comes down to one thing – people. The strategy 
piece is frankly easy, it is the execution that makes the difference. People 
is the first pillar of our overall strategic plan which the Board approved 
back in October 2023 (Data, Business Mix and Excellence being the other 
three pillars) and we have been executing well against the plan. In 2024 
we both elevated excellent internal talent and attracted terrific external 
talent across all of our businesses. I keep a close eye to the healthy mix 
of internal and external talent additions and I could not be more excited 
about watching them grow our Company over the next years to come.
CAPITAL ALLOCATION
Arguably one of the most important jobs of 
any steward of capital and certainly the most 
immediately visible to our shareholders. Here 
is the framework you can expect from us going 
forward:
a. Organic growth – for our Company this 
comes in two forms: 1. Expanding our services 
footprint across all four of our businesses – e.g. 
launching new services and products, hiring 
talent, opening new offices – predominantly 
reflected in income statement expenses which 
generally will be a drag for the first couple of 
years, followed by highly attractive returns 
in subsequent periods, and 2. Supporting the 
balance sheet growth of our Banking business 
which also generates attractive, double digit 
returns. In 2024, we invested approximately $70 
million in these initiatives.
b. Acquisitions across all of our businesses – we 
have a long history of acquisitions in each one of 
our four businesses and a deep understanding 
of what works for us and what doesn’t. We are 
constantly looking for opportunities to generate 
double digit and growing return on invested 
capital with limited downside in highly durable 
operations. We also have a strong bias towards 
utilizing cash in acquisitions – we generate 
cash capital and are in the business of cash 
capital deployment, not share issuances. We 
also love our Company and our share ownership 
and would rather trade an asset that doesn’t 
intrinsically appreciate for a business that does. 
When in doubt I tend to stick to the basics – 
more income and less shares seems like a good 
basic. In 2024, we invested approximately $20 
million in cash acquisitions in our Employee 
Benefit Services and Insurance Services 
businesses.
c. Dividends – a critical part of our overall 
shareholder return and the best example of the 
permanence of our Company. We have now 
grown our dividend for 32 consecutive years, a 
rare feat in the public company space. In 2024, 
we returned $96 million in dividends to our 
shareholders.
Scan to visit 
Community Financial System, Inc. 
Investor Day 2024

5
d. Share repurchases – a wise CFO of a very successful bank in the 
Southeast told me once “we don’t get paid 18x earnings to buy back 
shares” and I couldn’t agree more. With that said, there are times when 
the market noise overwhelms intrinsic value and we took advantage 
of an excellent opportunity in 2024 to buy back 1,000,000 shares for 
approximately $46 million. We will continue to pay close attention to such 
market disruptions.
CULTURE AND VALUES
A big part of my job is to be Chief Evangelist of our values – Integrity, 
Excellence, Teamwork, and Humility. As a shareholder you should know 
that those are non-negotiable in our Company and our approximately 
3,000 employees are expected to build on them one interaction at a 
time. In 2024, we also formalized our collective purpose – “Contribute to 
the prosperity of our Community, including our clients, colleagues and 
shareholders.” We do that by consistently: 1. Providing warm, trustworthy, 
and personalized service to our clients; 2. Serving each other with 
respect; 3. Building a strong community through our local focus, care 
and volunteerism; 4. Allowing our core values of Integrity, Excellence, 
Teamwork and Humility to guide us in our everyday work, and 5. Delivering 
Above Average Returns to our shareholders while managing Below 
Average Risk to ensure our long-term success. I am humbled to report 
that our Banking business was acknowledged by the American Bankers 
Community Foundation with their Volunteerism award – our employees 
spent more than 15,000 hours of volunteering in both 2023 and 2024.
A couple of brief reflections on our business results. In short, we had an 
excellent year. Revenue growth in our businesses were 4% in Banking and 
Corporate, 12% in Employee Benefit Services, 
7% in Insurance Services and 15% in Wealth 
Management Services. Combined, operating 
revenues were up 6%. We gained market share 
while managing operating noninterest expenses 
to a 5% increase. This led to overall operating 
pre-tax pre-provision net revenue growth of 
7% over 2023. However, bottom line results 
were impacted by an increase in our allowance 
for credit losses (of importance credit quality 
remains very strong and net charge offs were 
approximately half of peer levels) and also an 
uptick in the tax rate. Following this letter, you 
will find more detailed reports for each of the 
businesses. In aggregate, while the accounting 
adjustments and assumptions come and go, 
I would say that any year that we can grow 
operating revenues at a high single digit rate 
while keeping credit risk low is an excellent year. 
Onto 2025!
Dimitar A. Karaivanov 
President and CEO,
Community Financial System, Inc.
in nonbanking fees/
revenue amongst KRX 1,2,3
#1
in fees/revenue 
amongst KRX 1,3
#2
in cost of funds 
amongst KRX 1,3
#1
(tied) in consecutive annual 
dividend increases amongst KRX 3
#2
Our Core Values
Humility
We Respect Everyone
Teamwork
We Work Together
Excellence
We Always Bring Our Best
Integrity
We Do the Right Thing
1 Full Year 2024 results.
2   Regulatory income statement basis. Non-bank revenue 
includes fiduciary, investment banking, insurance and 
other noninterest income to capture employee benefit 
services revenue.
3 The KRX Regional Banking Index (KRX) is a market index 
that tracks the performance of 50 publicly traded banks 
and thrifts in the U.S.

Performance Highlights
Community Financial System, Inc. Annual Report 2024  |  6
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
10-Year CAGR = 7.5%
Total Operating Revenues1 $ in Millions
   $745.6
   $704.3
   $679.4
   $620.6
   $596.4
   $584.9
   $568.8
   $518.1
   $429.5
   $371.7
   $363.4
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
10-Year CAGR = 4.5%
Earnings per Share Diluted
   $3.44
   $2.45
   $3.46
   $3.48
   $3.08
   $3.23
   $3.24
   $3.03
   $2.32
   $2.19
   $2.22
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
10-Year CAGR = 6.3%
Net Interest Income $ in Millions
   $449.1
   $437.3
   $420.6
   $374.4
   $368.4
   $359.2
   $345.1
   $315.7
   $273.9
   $248.4
   $244.4
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
10-Year CAGR = 4.6%
Operating Earnings per Share2 Diluted
   $3.65
   $3.57
   $3.80
   $3.69
   $3.45
   $3.53
   $3.50
   $2.88
   $2.43
   $2.37
   $2.34
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
10-Year CAGR = 9.6%
Operating Noninterest Revenues1 $ in Millions
   $296.4
   $267.0
   $258.8
   $246.2
   $228.0
   $225.7
   $223.7
  $202.4
   $155.6
   $123.3
   $119.0
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
10-Year CAGR = 4.6%
Dividend Growth Declared
  $1.82
   $1.78
   $1.74
   $1.70
   $1.66
   $1.58
   $1.44
   $1.32
   $1.26
   $1.22
   $1.16
1  Operating revenues, a non-GAAP measure, and operating noninterest revenues, a non-GAAP measure, exclude securities gains/losses and gains/losses on debt 
extinguishment. A reconciliation of GAAP to Non-GAAP measures is provided in Item 7, Table 20 of the Company’s Annual Report on Form 10-K for the year ended 
Decebmer 31, 2024.
2  Operating earnings per share, a non-GAAP measure, excludes net of tax the effect of acquisition related expenses, gains/losses on investment securities, amortization 
of intangible assets and other special charges. A reconciliation of GAAP to Non-GAAP measures is provided in Item 7, Table 20 of the Company’s Annual Report on 
Form 10-K for the year ended December 31, 2024.

7
Investment Thesis
BELOW AVERAGE RISK
Manage Risk & Earnings Volatility Through:
• Revenue Diversity & Stability
• Cost of Funds Management 
• Credit & Net Charge-off Management
• Risk-Weighted Asset Management
ABOVE AVERAGE RETURNS 
Provide Solid Earnings & Shareholder Return:
• Premium Return on Assets
• Long-term Shareholder Value & Return
Core Return on Assets1
2024
5-Yr Avg
10-Yr Avg
    1.21%
    1.12%
    1.31%
    1.12%
    1.38%
    1.13%
0.00%
0.50%
1.00%
1.50%
  CBU      KRX (median)2
Cost of Funds
2024
5-Yr Avg
10-Yr Avg
    1.38%
    2.40%
    0.52%
    1.01%
    0.36%
    0.83%
0.00%
1.00%
2.00%
3.00%
  CBU      KRX (median)2
Net Charge-off Ratio
2024
5-Yr Avg
10-Yr Avg
    0.10%
    0.19%
    0.06%
    0.15%
    0.10%
    0.14%
0.00%
0.10%
0.20%
0.30%
  CBU      KRX (median)2
  CBU      KRX (median)2
Core Return on Equity1
2024
5-Yr Avg
10-Yr Avg
    11.4%
    9.9%
    10.8%
    10.1%
    10.3%
    9.8%
0.00%
5.00%
10.00%
15.00%
ABOVE AVERAGE RETURNS 
WITH BELOW AVERAGE RISK
Sources: S&P Global, internal filings. 
1 Core income, a non-GAAP measure, is net income after taxes and before extraordinary items, less net income attributable to noncontrolling interest, gain or loss 
on the sale of securities, amortization of intangibles, goodwill and nonrecurring items. Core ROA is defined as core income divided by average period assets; 
annualized. Core ROE is defined as core income divided by average period equity; annualized.
2 The KRX Regional Banking Index (KRX) is a market index that tracks the performance of 50 publicly traded banks and thrifts in the U.S.

Community Financial System, Inc. Annual Report 2024  |  8
Select Financial 
Highlights
Income Statement (in millions)
Net interest income
Operating noninterest revenues1
Total operating revenues1
Operating noninterest expenses2
Net income
Per Share Data (Diluted)
Earnings per share
Operating earnings per share3
Cash dividends declared
Book value
Tangible book value
Balance Sheet Data  (End of period, in millions)
Assets
Loans
Deposits
Shareholders’ equity
FY 2024
$ 
449.1
 
 
296.4
 
 
745.6
 
 
472.0
 
$ 
182.5
 
$ 
3.44
 
 
3.65
 
 
1.82
 
 
33.47
 
$ 
17.20
 
$ 16,386
 
 
10,432
 
 
13,442
 
$ 
1,763
FY 2014
$ 
244.4
 
 
119.0
 
 
363.4
 
 
219.4
 
$ 
91.4
 
$ 
2.22
 
 
2.34
 
 
1.16
 
 
24.24
 
$ 
15.63
 
$ 
7,489
 
 
4,236
 
 
5,935
 
$ 
988
10-Yr
CAGR
 
6.3%
 
9.6%
 
7.5%
 
8.0%
 
7.2%
 
4.5%
 
4.6%
 
4.6%
 
3.3%
 
1.0%
 
8.1%
 
9.4%
 
8.5%
 
6.0%
1  Operating noninterest revenues, a non-GAAP measure, and total operating revenues, a non-GAAP measure, exclude 
securities gains/losses and debt extinguishment gains/losses. A reconciliation of GAAP to Non-GAAP measures is 
provided in Item 7, Table 20 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.
2  Operating noninterest expenses, a non-GAAP measure, excludes acquisition-related expenses, litigation accrual, 
restructuring expenses and amortization of intangible assets. A reconciliation of GAAP to Non-GAAP measures is 
provided in Item 7, Table 20 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.
3  Operating earnings per share, a non-GAAP measure, excludes net of tax the effect of acquisition related expenses, 
gains/losses on investment securities, amortization of intangible assets and other special charges. A reconciliation of 
GAAP to Non-GAAP measures is provided in Item 7, Table 20 of the Company’s Annual Report on Form 10-K for the year 
ended December 31, 2024.
 Springfield, Massachusetts

9
Excellence 
Recognized
Community Financial System, 
Inc. continues to be recognized 
for its strong performance, 
highlighting our commitment 
to shareholders, customers, 
and employees. In 2024, our 
dedication to excellence and 
industry leadership remained 
evident through continued 
achievements and milestones.
S&P Dividend Aristocrat
CBU’s 32 years of consecutive annual 
dividend increases have allowed it to retain 
the status as an S&P Dividend Aristocrat.
NAPA Top DC Advisor Team
OneGroup Retirement Advisors, a segment of 
Wealth Management, was named to the  2024 
NAPA Top DC Advisor Teams list for the sixth 
consecutive year.
Vermont Business 
Magazine “Best Bank”
Regularly named a “best bank” in our 
communities, including by Vermont Business 
Magazine in 2024.
Volunteerism Award
Received Volunteerism award by the American 
Bankers Association in 2024.
Forbes America’s Best 
Large Regional Bank
Ranked in top 25 of Forbes America’s Best 
Large Regional Banks for 13 of the last 16 
years and named to the World’s Best Banks 
in 2024.
Top 100 P/C Agency
OneGroup was ranked #66 in Insurance Journal’s 
Top 100 Property & Casualty Agencies of 2024, 
marking its third consecutive year on the list and an 
improvement of nine spots from the previous year.
Bank Director’s Best US Bank
Ranked #89 in Bank Director’s, Best US banks 
between $5 and $50 billion in total assets for 
2024. An improvement of 27 places and marks the 
third consecutive year CBU has been recognized.
NAPA Advisors’ Choice
BPAS: NAPA Advisors’ choice award top 5 record 
keeper 2024 for the 3rd consecutive year. 

Community Financial System, Inc. Annual Report 2024  |  10
Banking Services
Commercial Banking 
Treasury Management 
Governmental 
Business Banking 
Retail & Consumer
Insurance Services
Risk Management 
Business Insurance 
Personal Insurance 
Employee Benefits 
Human Resources Services & Consulting
Wealth 
Management Services
Investment Advising
Retirement Plan Design
Asset Management
Trust Services
Financial Planning
Family & Succession Planning
Diversified and Complementary 
Revenue Streams
1  Segment-level operating revenue results. Segment results include certain Intercompany transactions that are eliminated in consolidation to Community Financial 
System, Inc. Segment-level operating results are presented utilizing methodology consistent with the Segment Information disclosure in the Company’s Annual Report 
on Form 10-K for the year ended December 31, 2024.
$445.8M1
Net Interest Income for 2024 
2.5% increase from 2023
Employee
Benefit Services
Retirement Plan & Benefits Administration 
Actuarial & Pension Services 
Public-Sector Benefits & VEBA 
Health & Welfare Plans 
Collective Investment Fund
$137.4M1
Operating revenues from employee 
benefit services for 2024 
11.9% increase from 2023
$50.5M1
Operating revenues from 
insurance services for 2024
6.7% increase from 2023
$38.7M1
Operating revenues from wealth 
management services for 2024 
14.9% increase from 2023
$78.2M1
Noninterest banking revenues for 2024 
11.8% increase from 2023

11
Banking Services
JEFFREY LEVY 
In 2024, we strengthened 
our foundation for 
growth—expanding into 
key markets, deepening 
client relationships, and 
leveraging technology 
to enhance our banking 
experience. As we look 
ahead to 2025, our focus 
remains on strategic 
expansion and delivering 
the high-touch service 
that sets us apart. 
Jeffrey Levy 
SVP, Chief Banking Officer,
Community Bank, N.A.
EXPANDING OUR REACH: GROWTH & INNOVATION IN 2024
Our banking business had another strong year in 2024. We executed 
well on our strategic initiatives, delivering solid financial performance 
across all lines of business. Our focus remains on driving organic growth 
by deepening relationships with our existing business and retail banking 
clients, expanding our customer base, and leveraging the value-added 
services of our Employee Benefit, Insurance, and Wealth Management 
partners.
We continue to enhance the customer experience through strategic 
investments in talent, technology, and digital banking enhancements. 
These efforts have once again earned us recognition from respected 
national and regional publications, including Forbes, Newsweek, and “Best 
Bank” awards in Pennsylvania and Vermont, highlighting our industry-
leading service and financial strength.
EXPANDING OUR PRESENCE
We continuously evaluate opportunities to optimize our delivery networks 
and expand strategically in response to market demand. In 2024, we 
focused on strengthening our existing footprint while identifying high-
potential growth markets. As part of this effort, we are in the early stages 
of establishing eighteen new branches, marking the most significant 
capital investment in our retail banking franchise in our 159-year history.
This initiative is already underway, with our first two new branches 
opening in Syracuse, New York, in late 2024 and Buffalo, New York, in 
February 2025. By expanding our reach, we are creating new opportunities 
for customers, strengthening local economies, and enhancing access to 
our growing suite of services.
MARKET EXPANSION & GROWTH
Our disciplined market strategy and execution have led to deeper 
penetration in our core, legacy markets, reflected in year-over-year growth 
in loans, deposits, and fee income. We also gained market share in Upstate 
New York’s most competitive markets—Albany, Buffalo, Rochester, and 
Syracuse—where we now have an established branch presence. These 
markets present significant opportunities for accelerated growth as we 
expand both banking and non-banking services.
Our commercial banking expansion into New Hampshire and the Lehigh 
Valley in Pennsylvania is also progressing well, with early indicators of 

Community Financial System, Inc. Annual Report 2024  |  12
success. Notably, all of these key markets will see retail branch openings in 
2025, further reinforcing our commitment to strategic growth.
In commercial banking, we built on another year of double-digit loan 
growth while significantly expanding fee income through the launch 
of Interest Rate Derivative product offerings and the growth of our 
Commercial Real Estate capital markets capabilities.
On the consumer side, Residential Mortgage and Consumer Installment 
Lending both delivered another year of strong growth. We remain focused 
on implementing efficiencies and technology enhancements to improve 
customer experience and support our retail banking partners.
2024 FINANCIAL PERFORMANCE HIGHLIGHTS
• TOTAL REVENUES: $524.0 million, a 3.8% increase over the prior year
• LOAN GROWTH: $727.8 million, or 7.5%, with increases across 
Commercial, Consumer Mortgage, and Consumer Installment Loans
• DEPOSIT GROWTH: $513.6 million, or 4.0%
• FEE INCOME: $78.2 million, an 11.8% increase over the prior year
• OPERATING EXPENSES: A modest 2.7% increase, reflecting 
disciplined cost management
• NET CHARGE-OFFS: 10 basis points, a modest increase, reinforcing 
our strong asset quality performance
LOOKING AHEAD TO 2025
As we enter 2025, our focus remains on scaling the strategies that have 
driven our success. We are committed to serving our communities and 
customers with the high-touch, relationship-driven approach that sets us 
apart while leveraging technology to enhance the products and services 
our clients expect.
We continue to thrive in the community banking 
space, successfully competing against—and 
winning market share from—larger banks in our 
footprint.
We are also optimistic about the broader 
economic environment. The resilience of 
our markets, strong employment trends, and 
significant public-private investments—
particularly in Semiconductor/Chip Manufacturing 
through the CHIPS Act, NY CREATES, Micron 
Technology, and Global Foundries—position us 
well for continued growth.
Our branch expansion initiative will remain our 
top priority in 2025. Building new commercial and 
consumer financial service relationships in these 
growing markets will be a primary focus across 
our leadership team.
2024 was a strong year, and we are well-
positioned to seize the opportunities that 2025 
will bring. Thank you to our dedicated team and 
valued customers for being part of this exciting 
journey.
Jeffrey Levy 
SVP, Chief Banking Officer,
Community Bank, N.A.
Wilkes-Barre, Pennsylvania

13
Insurance Services
PIERRE MORRISSEAU
GROWTH, INNOVATION & MARKET LEADERSHIP IN 2024
2024 was a transformative year for OneGroup—one of growth, 
operational strength, and a deepened commitment to serving our clients 
at the highest level. In a challenging insurance landscape, we not only 
navigated complexity but built a stronger foundation for the future.
One of the biggest milestones this year was surpassing $50 million in 
revenue, reinforcing our position as a leader in the industry. We continued 
to move up the rankings in Business Insurance’s Top 100 Insurance 
Brokers and Insurance Journal’s Top 100 Property and Casualty Insurance 
Agencies, a testament to our growing influence and market leadership.
For the past five years, we’ve been intentional about deepening our 
presence in key markets while expanding our specialty expertise and 
acquiring firms that complement our vision—regardless of geography. 
In 2024 alone, five firms joined OneGroup, strengthening our talent in 
public schools and municipalities, increasing our market share in the North 
Country and Florida, and expanding into Buffalo.
STRENGTHENING OUR FOUNDATION FOR GROWTH
Growth is only as good as the infrastructure supporting it, and this year, 
we made meaningful progress in standardizing our merger and acquisition  
process to ensure seamless integration and efficiency across all locations. 
We also stabilized our technology environment, leveraging best-in-class 
platforms that enhance security, improve operations, and position us to 
fully harness data, analytics, and AI in 2025.
With our footprint now spanning five states, we restructured our 
management team to scale effectively and ensure we remain agile, 
responsive, and ready for continued expansion.
Our commitment to specialization continues to pay off. Our Food and 
Life Sciences practice had a standout year, winning new business across 
the U.S., while our manufacturing expertise and advisory-led approach 
helped clients proactively manage risk—leading to major wins with large 
manufacturers.
THE POWER OF COLLABORATION & INNOVATION
Collaboration and innovation are at the heart of how we operate. Across 
all CFSI entities, we’ve strengthened cross-functional collaboration, 
combining our scale, expertise, and technology to drive better outcomes. 
Our approach is simple: when you work with one part of OneGroup, you 
gain access to the full strength of our entire organization. That’s what 
makes us different.
2024 was a year of 
transformation for 
OneGroup—not just in 
growth, but in building 
a stronger foundation 
for the future. As we 
enter 2025, we remain 
committed to delivering 
exceptional value and 
setting new industry 
standards.
Pierre Morrisseau 
CIC, President and CEO, 
OneGroup

Community Financial System, Inc. Annual Report 2024  |  14
OneGroup has consistently demonstrated a 
deep understanding of our industry’s unique 
challenges and has provided us with tailored 
recommendations and insurance solutions that 
align perfectly with our business needs.
C.J. Madonna Esq., General Counsel
Schluter®-Systems
Looking ahead to 2025, we’re doubling down on these efforts—
leveraging technology to enhance, not replace, the human 
element of what we do. By streamlining backend processes, 
we’re giving our people more time to focus on what matters 
most: delivering exceptional service and building lasting client 
relationships.
As we move forward, our mission remains the same: to build 
on this momentum, drive sustainable growth, and continue 
delivering value to our clients, employees, and partners. The 
strength of our team, the depth of our expertise, and our focus 
on innovation will continue to fuel our success.
Thank you for being part of this journey. Here’s to another year of 
growth, collaboration, and success.
Pierre Morrisseau  
CIC, President and CEO,
OneGroup
Syracuse, New York
Annual Premiums
Offices
FTEs
Acquisitions since 2021
7-year revenue CAGR
> $400M
22
239
16
9.7%

15
Our success in 2024 
wasn’t just about 
market conditions—it 
was driven by strategic 
investments in our 
people, technology, 
and partnerships. 
In 2025, we remain 
committed to delivering 
high-quality wealth 
management solutions 
that empower our 
clients and strengthen 
the CFSI family. 
Michael Cerminaro 
President and CEO,
Community Bank Wealth 
Management
Wealth Management Services
MICHAEL CERMINARO
BUILDING MOMENTUM: OUR BEST YEAR YET
The Wealth Management division reached new heights in 2024, 
capitalizing on strong momentum to seize new opportunities and continue 
delivering exceptional service to our clients.
At the core of our success is a commitment to providing comprehensive, 
unrivaled financial solutions—including investment and insurance services, 
trust services, asset management, retirement plan consulting, financial 
planning, and partner solutions. Our highest priority remains seamlessly 
integrating our wealth management services to benefit the entire CFSI 
family of businesses and clients.
2024 PERFORMANCE HIGHLIGHTS
Our division achieved record-breaking results:
• Total revenues reached $38.7 million, an all-time full-year record
• New advisory assets surpassed $1 billion
• We closed the year with $13.2 billion in AUMA
While favorable market conditions played a role, our success was 
primarily driven by strategic investments in our people, technology, and 
partnerships:
• Talent Growth: We welcomed 10 new team members, expanding our 
expertise and capacity.
• Professional Development: 30 employees completed an advanced 
professional development program, reinforcing our commitment to 
excellence.
• Stronger Bank Partnerships: Closer collaboration with our retail 
banking colleagues resulted in over 1,900 qualified leads for our 
financial consultants and trust officers.
• Technology Enhancements: We deployed a new customer relationship 
management (CRM) platform, streamlining integration across teams 
and enhancing the client experience.
LOOKING AHEAD TO 2025
We are committed to sustaining this momentum in 2025 by deepening 
our relationships with partners and clients across CFSI while expanding 
our platforms and service offerings. Our goal is clearer than ever: to deliver 
best-in-class wealth management solutions that empower our clients and 
strengthen the CFSI family.
Michael Cerminaro 
President and CEO,
Community Bank Wealth Management

Community Financial System, Inc. Annual Report 2024  |  16
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
$0
$10
$20
$30
$40
40%
30%
20%
10%
0%
Millions
Nottingham Financial Group
In the coming months, Community Bank Wealth Management will 
rebrand as  Nottingham Financial Group. Leveraging the Nottingham 
name already used by our trust and asset management services, 
we’ll create modern, unified branding and messaging for the division. 
A strong, recognizable brand will help us stand out in a crowded 
marketplace and position our organization as one that customers 
can trust for quality financial services delivered by experienced 
professionals. We’re excited about this new chapter and look forward 
to debuting new logos, materials, and an overhauled digital presence 
in the coming months. 
Here’s a sneak peek.
Our Next Chapter
In Wealth Management
1   Includes $3.3 billion of intercompany AUMA
1   Total Operating Revenues includes segment net interest income plus operating noninterest revenues (total noninterest revenues less securities and debt gains/losses). 
Includes certain intersegment revenues that eliminate upon consolidation.
2   Operating Margin is calculated by total segment adjusted pre-tax income divided by total segment operating revenues. Total segment adjusted pre-tax income is 
calculated by segment net interest income plus operating noninterest revenues less operating noninterest expenses (total noninterest expenses less acquisition 
expenses, amortization of intangible assets and other special charges).  Includes certain intersegment revenues and expenses that eliminate upon consolidation.
Wealth Management
Operating Revenues1   
- - - Operating Margin2
Financial Professionals
Trust Officers
AUMA1
10-year revenue CAGR
FTEs
30
19
$13.2B
8.4%
113

17
2024: SMOOTH TAKEOFF AND LANDING OF AIRPLANES
Have you ever sat near a major airport at night, where planes take off and 
land seamlessly, one after another, without disruption? That’s how 2024 
was here at BPAS: Tackling key initiatives, onboarding significant new 
business, and welcoming new talent into our firm. And through it all, our 
incredible team carried us forward with a sense of calm and grace.
BPAS TODAY
BPAS is a leading national provider of retirement plan services and 
institutional trust services, serving a diverse range of financial partners and 
intermediaries across the U.S. Now fifty-two years into our evolution, we 
achieved record setting milestones across the board in 2024. We’re proud 
to now support 6,100 plans, $110 billion in trust assets, and $1.3 trillion in 
assets under fund administration, with some 910,000 participants in our 
care. We provide a comprehensive range of services within the industry, 
spanning defined contribution, defined benefit consulting and actuarial, 
nonqualified, health & welfare, IRA accounts and more. We continuously 
strive to expand our capabilities, take ownership of challenges and deliver 
meaningful solutions for our partners.
In 2024, BPAS achieved total revenues of $137.4 million, reflecting an 
increase of $14.5 million, or 11.8%, compared to the previous year. These 
results were largely driven by a sizeable increase in the number of total 
plans, assets and participants in our care. Our team is made up of 460 
employees, across 32 states, 17 offices and four time zones, but we 
continue to operate with the agility, accountability and personal touch of a 
mid-sized company, ensuring that every client and partner feels valued.
STRATEGIC INITIATIVES
Many of the initiatives underway at BPAS center on technology. In March 
of 2024, we rolled out a new portal for plan sponsors and partners, 
delivering ten years of evolution over a weekend. Throughout 2024, we 
made continuous enhancements to our BPAS University mobile app adding 
new content, designed to engage and inspire participants on their path to 
long-term financial success. We are now working to incorporate business 
intelligence and dashboard technology in a variety of our sites; working 
on a major upgrade of our core operating system and CRM in the coming 
quarters; and expanding our integration with payroll providers. Across our 
business, dozens of projects are underway that will deliver new automation 
and efficiency, transform manual processes into a digital experience, and 
capitalize on AI to automate repetitive tasks. We are also embarking on 
Employee Benefit Services
PAUL NEVEU
In 2024, BPAS operated 
with the precision of a 
well-orchestrated flight—
smooth execution, steady 
momentum, and a clear path 
forward. Our commitment 
to innovation, client service, 
and strategic expansion 
continues to set us apart, and 
as we move into 2025, we 
remain focused on delivering 
lasting value for our clients 
and partners. 
Paul Neveu 
President and CEO, 
BPAS

the Enterprise Call Center – a four-year initiative that will bring enormous 
efficiencies to our participant service center while enhancing the user 
experience in dramatic ways. Our goal is to leverage our team’s deep 
industry expertise to create a meaningful impact for clients, while our 
technology streamlines processes and removes obstacles. 
MOVEMENT OF THE PUCK
In recent years, our industry has undergone significant change driven 
by acquisitions and major transitions at some of the largest firms, 
negatively impacting the client experience for many. In this environment, 
clients are craving single point of contact service, quick responses and 
accountability; they want to work with subject matter experts rather 
than a bullpen of generalists. All of this has moved the puck into our end 
of the ice. At BPAS, we prioritize retaining top talent with deep industry 
expertise, ensuring our clients receive consistent, knowledgeable support. 
Our strong, collaborative team culture fosters stability, with a personalized 
experience that builds lasting client relationships. As a testament to our 
commitment to customer service, BPAS was recognized for the third 
consecutive year in the NAPA Advisors’ Choice Awards, and received a 
record-high response rate in our 2024 plan sponsor survey. We take none 
of this for granted. We’re always listening and working on how we can do 
things better, but feedback like this fuels our 
motivations for the future. 
EMBRACING THE FOURTH LANE OF THE 
HIGHWAY
Most firms in the retirement business operate on 
“three lanes of the highway” – working with plan 
participants, employers, and advisors as their 
core strategy. Taking a cue from our institutional 
trust business, BPAS has added a fourth lane to 
our highway, partnering with firms who may be 
competitors in certain spaces, who have niche 
needs we can solve together. This could be DB 
Outsourcing, Healthcare Consulting, DB360, 
partnering on VEBA or Section 115 engagements, 
IRAs or niche plan types the partner doesn’t 
support internally. We understand the trust and 
confidence that comes with such partnerships 
and are adept at using single sign-on technology 
and other techniques to make it work seamlessly. 
BPAS saw substantial growth during 2024 in 
Boston, Massachusetts
Community Financial System, Inc. Annual Report 2024  |  18

19
BPAS revenues. Now in 2025, we are developing 
new strategies and opportunities, driven by client 
requests and new strategic partnerships. We will 
continue to drive the growth of legacy business 
and relationships, while adding creative solutions 
to meet the changing needs of asset owners and 
asset managers. This will be the third evolution 
of our Trust services. As we’ve added new 
capabilities, we’ve received an exciting response 
from partners. We see the continued growth of 
collective investment funds, custom funds and co-
manufactured products driving our future, as we 
participate in a larger segment of the marketplace. 
At BPAS, we prioritize steady and strategic 
growth. While expansion remains a key objective, 
we are equally committed to evolving our business 
while preserving our culture and firm identity. As 
we focus on 2025 and 2026, we remain dedicated 
to the partners, clients and plan participants who 
place their trust in us, while staying true to the 
operating philosophies and strategies that built 
our firm over the decades.
Paul Neveu
President and CEO, 
BPAS
this fourth lane, especially in our VEBA and DB Outsourcing business 
lines. We thrive as a flexible and adaptive player in the middle of the 
marketplace, tailoring our approach to meet the unique needs of each 
client engagement.
TWO ITEMS OF NOTE IN 2024
In February of 2024, we acquired Creative Plan Designs on Long Island, 
which came with approximately 30 professionals in total. In strategically 
integrating this team, we’ve created the Creative Plan Design practice of 
BPAS, which now consists of approximately 70 professionals, offering third 
party administrator, small defined benefit, length of service award programs, 
and other consulting services as an expansion of our services. This team 
extends our reach and influence on retirement plans across the U.S. in a 
third-party administrator and consulting capacity. We also saw something 
interesting in 2024, when changes at other firms drove a significant 
expansion of our ESOP / kSOP business. BPAS has a rare, vertically 
integrated model that provides compelling advantages for an ESOP or kSOP 
– allowing us to be accountable for the entire relationship with a single plan 
consultant handling all sides of the plan. We see our ESOP / kSOP business 
as another large driver of growth in 2025 and beyond. 
THRIVING INSTITUTIONAL TRUST BUSINESS
Through our institutional trust business with offices in Boston and Houston, 
BPAS is a major provider of collective investment funds, common funds, 
LLCs, donor advised funds, endowment and foundation administration, 
synthetic portfolios, and other niche services, in cooperation with custodian 
banks, asset managers, consulting firms and other intermediaries. Our Trust 
business had a solid 2024 fiscal year, generating approximately 44% of 
1   Total Operating Revenues includes segment net interest income plus operating noninterest revenues (total noninterest revenues less securities and debt gains/losses). 
Includes certain intersegment revenues that eliminate upon consolidation.
2   Operating Margin is calculated by total segment adjusted pre-tax income divided by total segment operating revenues. Total segment adjusted pre-tax income is 
calculated by segment net interest income plus operating noninterest revenues less operating noninterest expenses (total noninterest expenses less acquisition 
expenses, amortization of intangible assets and other special charges).  Includes certain intersegment revenues and expenses that eliminate upon consolidation.
Employee Benefit Services
Operating Revenues1   
- - - Operating Margin2
FY14
FY15
FY16
FY17
FY18
FY19
FY20
FY21
FY22
FY23 FY24
$0
$50
$100
$150
50%
40%
30%
20%
10%
0%
Millions

Community Financial System, Inc. Annual Report 2024  |  20
Investment Profile 
• Consistent business model for over 20 years
• Committed to successful operating strategy focused on 
low-risk acquisitions, organic growth, and prudent capital 
management
• Strong long-term return to shareholders and long-
standing dividend growth
• Strong fundamentals with consistent asset quality and 
high quality, durable revenues
• Long-term responsible growth focus
Investment Profile
As of December 31, 2024 
• 52.7M Shares Outstanding
• 39.0M Shares Held by Institutions
• 290 Institutional Holders
• Approximately 13.0M Retail Shares
• Approximately 24.7% shares of outstanding are
Retail Shares 
Ownership Summary 
Buffalo, New York

21
Executive Management
DIMITAR A. KARAIVANOV
President and Chief Executive Officer
Joined CBU in 2021 and has previously served as COO. Prior to then, Mr. Karaivanov 
served as Managing Director in Lazard’s Financial Institutions Group.
JOSEPH E. SUTARIS
EVP, Chief Financial Officer
Joined CBU in 2011 following the Company’s acquisition of The Wilber Corporation, where 
he held several roles, including CFO. 
MICHAEL N. ABDO
EVP, General Counsel
Prior to joining CBU in 2013, he served as an associate with Cadwalader Wickersham & 
Taft in its New York City Office, with a focus on commercial and financial litigation.
JEFFREY M. LEVY
SVP, Chief Banking Officer
Mr. Levy joined CBU in 2018 as a Regional Executive. In January 2022, he was promoted 
to Senior Vice President (SVP), President of Commercial Banking, before advancing to his 
current position as Chief Banking Officer. Prior to CBU, he held positions at NBT Bank and 
M&T Bank.
MAUREEN GILLAN-MYER
EVP Chief Administration and Human Resources Officer
Prior to joining CBU in October 2021, Ms. Gillan-Myer served as Senior Executive Vice 
President and Chief Human Resources Officer of HSBC, USA.

Community Financial System, Inc. Annual Report 2024  |  22
Board Members
ERIC E. STICKELS 
Chairperson of the Board
Retired President, COO and Secretary 
Oneida Financial Corp.
Director Since 2015
RAYMOND C. PECOR, III    
President   
Lake Champlain Transportation Company 
COMMITTEES Risk, Chair; Governance; 
Executive 
Director Since 2017
SAVNEET SINGH    
President and CEO   
PAR Technology Corporation
President   
ParTech, Inc.
Director Since 2024
SUSAN E. SKERRIT    
Lead Director
Retired Chairwoman, CEO and President
Deutsche Bank Trust Company Americas
COMMITTEES Audit; Compensation  
Director Since 2020
SALLY A. STEELE    
Retired Attorney at Law   
COMMITTEES Trust; Compensation  
Director Since 2003
MICHELE P. SULLIVAN     
Retired Partner   
Crowe LLP 
COMMITTEES Audit; Trust 
Director Since 2024
JOHN F. WHIPPLE, JR.     
CEO   
Buffamante Whipple Buttafaro, P.C.  
COMMITTEES Governance; Chair; Audit; 
Executive 
Director Since 2010
DIMITAR A. KARAIVANOV     
President and CEO   
Community Financial System, Inc. 
Director Since 2024
MARK J. BOLUS  
President and CEO  
Bolus Motor Lines, Inc.
COMMITTEES Compensation, Chair; 
Executive; Trust
Director Since 2010
NEIL E. FESETTE   
Owner, President and CEO   
Fesette Realty, LLC and Fesette 
Property Management
COMMITTEES Executive, Chair; 
Compensation; Audit
Director Since 2010
JEFFERY J. KNAUSS   
Co-Founder and CEO Arcovo AI
Former CEO and Co-Founder   
Digital Hyve
COMMITTEES Compensation; Governance
Director Since 2021
KERRIE D. MACPHERSON   
Retired Senior Partner  
Ernst & Young, LLP
COMMITTEES Audit, Chair; 
Governance; Executive
Director Since 2019
JOHN PARENTE  
CEO  
CP Media, LLC
COMMITTEES Trust, Chair; Executive; 
Governance
Director Since 2010
Note: All bank board members serve on in the Risk Committee

23
Administration 
EXECUTIVE
Dimitar A. Karaivanov, President and Chief Executive Officer 
Joseph E. Sutaris, EVP, Chief Financial Officer 
Maureen Gillan-Myer, EVP, Chief Administration and Human 
Resources Officer 
Michael N. Abdo, EVP, General Counsel 
Jeffrey M. Levy, SVP, Chief Banking Officer 
INFORMATION TECHNOLOGY & OPERATIONS  
Aaron Friot, SVP, Chief Technology and Operations Officer 
RISK MANAGEMENT   
Daniel L. Bailey, SVP, Chief Risk Officer 
BANKING SERVICES 
Melissa Bollman, Head of Retail Banking
Scott Boser, SVP, Director of Consumer and Mortgage Lending 
Matthew Durkee, Regional President, New England & President of 
Commercial Lending
Barbara Maculloch, Regional President, Pennsylvania
Lindsay Weichert, Regional President, Central New York
Bryant Cassella, Regional President, Eastern New York
Christopher Humphrey, Regional President, Western New York
EMPLOYEE BENEFIT SERVICES
Paul M. Neveu, President and Chief Executive Officer   
INSURANCE SERVICES   
Pierre J. Morrisseau, CIC, President and Chief Executive Officer  
WEALTH MANAGEMENT SERVICES 
Michael Cerminaro, President and Chief Executive Officer   
COMMUNITY BANK, N.A.
PENNSYLVANIA REGIONAL ADVISORY BOARD 
John Basalyga
Colleen Doyle, Esq.
John Graham
Gerard O’Donnell
William Ruark
Lissa Bryan-Smith
James Shoemaker, Esq.
Tara Mugford Wilson
Burlington, Vermont

Community Financial System, Inc. Annual Report 2024  |  24
Burlington, Vermont
Community Bank, N.A. Locations
BRANCH AND DRIVE-THRU
ALBANY REGION
Albany
Amsterdam
AuSable Forks
Boiceville
Canajoharie
Champlain
Chateaugay
Chatham
Delmar
East Greenbush
Greenport
Indian Lake
Johnstown
Lake Placid
Latham
Long Lake
Malone (West Main St)
Malone (Elm St)*
North Creek
Plattsburgh (Route 3)
Plattsburgh (Margaret St)
Saranac Lake (Broadway)
Saranac Lake (Lake Flower)*
St Regis Falls
Ticonderoga
Tupper Lake
Valatie
Whitehall
BINGHAMTON REGION 
Canastota
Cato
Cazenovia
Chittenango
Cobleskill
Cooperstown (Otsego)
Delhi
Hamilton
Ithaca (East Buffalo St)
Ithaca (South Meadow St)
Ithaca (Triphammer)
Ithaca (West State St)
Johnson City
Moravia
Nichols
Norwich Town
Oneida (182 Main St)
Oneida (585 Main St)
Oneonta (Chestnut St)
Oneonta (Main St)
Oneonta (Southside)
Sidney
Walton
BUFFALO REGION 
Alfred
Allegany
Belfast
Belmont
Bolivar
Buffalo
Clymer
Cuba
Dunkirk (Central Ave)
Dunkirk (Vineyard Dr)
Falconer
Fillmore
Franklinville
Gowanda
Jamestown
Lakewood
North Collins
Olean (North Union St)
Olean (Delaware Pk)*
Orchard Park
Randolph
Salamanca
Sherman
Silver Creek
Springville
Warsaw
Wellsville (North Highland Ave)
Wellsville (North Main St)
Westfield
Yorkshire
NEW ENGLAND REGION 
Barre 
Bennington
Bradford
Brattleboro
Bristol
Burlington (College St)
Burlington (North Ave)
Enosburg
Essex Junction
Fair Haven
Hardwick 
Hinesburg
Jericho
Johnson 
Manchester
Rutland (Green Mountain Plaza)
Rutland (Woodstock Ave)*
South Burlington (Shelburne Rd)
South Burlington (Williston Rd)
South Hero 
Springfield, MA
Springfield, VT
St Albans 
St Johnsbury
Vergennes
Waterbury 
White River Junction*
Williston
Wilmington
Winooski
PENNSYLVANIA REGION 
Back Mountain
Carbondale*
Clarks Summit
Daleville
Edwardsville*
Freeland
Hazelton (South Church St)
Hazleton (Airport Rd)
Jermyn
Kingston
Laceyville
Lansford 
Lehighton
Meshoppen
Montrose
Olyphant
Pittston
Scranton (Keyser Ave)
Scranton (Minooka)
Scranton (North Washington Ave)
Scranton (Wyoming Ave)
Tunkhannock
Wilkes Barre (South Main St)
Wilkes-Barre (Liberty Plaza)
Wyalusing
ROCHESTER REGION 
Addison
Avon
Bath
Canandaigua
Clifton Springs Plaza
Corning
Dansville
Elmira (Big Flats)
Elmira (East Water St)
Elmira (Southport)
Elmira (West Water St)
Geneseo
Geneva
Hammondsport
Henrietta
Hornell
Horseheads
Livonia
Naples
Newark Plaza
Ovid
Palmyra
Penn Yan (Main St)
Penn Yan (Lake St)*
Phelps
Seneca Falls
Waterloo
Watkins Glen
SYRACUSE REGION 
Adams
Alexandria Bay
Black River
Boonville (Main St)
Boonville (Headwaters Plaza)*
Camden
Canton (Main St)
Canton (Court St)*
Cicero
Clayton
DeWitt
Fulton
Gouverneur
Hannibal
Lowville (State St)
Lowville (Turin Rd)*
Lyons Falls
Madrid
Massena
Ogdensburg
Old Forge
Oswego
Potsdam
Pulaski
Rome
Skaneateles
Star Lake
Syracuse
Vernon
Watertown (Arsenal St)
Watertown (Washington St)
West Carthage
Westmoreland
* Drive-up Only

25
Growth Profile
CBU
S&P 600 Commercial Banks Index 
KBW Regional Bank Index 
1 Year
22.6%
14.6%
13.2%
5 Year
0.2%
4.4%
5.5%
10 Year
7.9%
7.3%
7.2%
15 Year
11.5%
10.3%
9.5%
Through December 31, 2024, Including Reinvestment of Dividends
Source: Bloomberg
Total Shareholder Returns  (Annualized)
Closing Price
$61.68
Price/Earnings (TTM)
17.93
Average 3-Month 
Daily Volume
238,033
52 Week High 
Stock Price
$73.39
52 Week Low 
Stock Price
$41.50
Stock Performance   At 12.31.24
Albany, New York

Community Financial System, Inc. Annual Report 2024  |  26
Corporate and
Shareholder Information 
CORPORATE HEADQUARTERS 
Community Financial System, Inc.
5790 Widewaters Parkway
DeWitt, NY 13214-1883
Phone: 315.445.2282 or 800.724.2262
Fax: 315.445.7347
communityfinancialsystem.com
STOCK LISTING 
CBU  
The common stock symbol of Community Financial System, Inc. 
listing on the New York Stock Exchange (NYSE)
ANNUAL MEETING
Virtual Meeting on 
Wednesday, May 21, 2025 at 
12:00 p.m. Eastern Daylight Time
www.virtualshareholdermeeting.com/CBU2025
TRANSFER AGENT AND REGISTRANT OF STOCK
Shareholders requiring a change of name, address or ownership 
of stock, or information about shareholder records, lost or 
stolen certificates, and dividend checks, direct deposit and 
reinvestment should contact:
EQUINITI TRUST COMPANY
P.O. Box 500
Newark, NJ 07101
equiniti.com
General questions: 877.253.6847
INVESTOR INFORMATION 
Investor and shareholder information regarding Community 
Financial System, Inc., including all filings with the Securities 
and Exchange Commission, is available through the company’s 
website: communityfinancialsystem.com.
COPIES MAY ALSO BE OBTAINED WITHOUT 
CHARGE UPON WRITTEN REQUEST TO: 
Ms. Marguerite Geiss
Investor Relations
Community Financial System, Inc.
5790 Widewaters Parkway
DeWitt, NY 13214-1883
315.445.7313
marguerite.geiss@cbna.com
INDEPENDENT AUDITORS  
The Board of Directors appointed PricewaterhouseCoopers, LLP 
as auditor for the company for the year ended 
December 31, 2024
ANALYST COVERAGE   
The following analysts published research about Community 
Financial System, Inc. in December 31, 2024:
D.A. DAVIDSON & CO. 
Manuel Navas 
212.223.5405 
mnavas@dadco.com
JANNEY MONTGOMERY SCOTT LLC 
Jake Civiello
207.536.2171 
jciviello@janney.com
KEEFE, BRUYETTE & WOODS, INC. 
Christopher O’Connell 
212.887.4725 
oconnellch@kbw.com 
PIPER SANDLER 
Frank Schiraldi
212.466.7931
Frank.Schiraldi@psc.com
RAYMOND JAMES FINANCIAL INC. 
Steve Moss
202.872.5931
steve.moss@raymondjames.com 
STEPHENS, INC.  
Matthew M. Breese 
401.658.1114 
matt.breese@stephens.com 
INVESTOR’S CHOICE PROGRAM    
CBU offers convenient, low-cost options for investors wishing to 
steadily buy shares. For information, contact:
EQUINITI TRUST COMPANY
P.O .Box 500
Newark, NJ 07101
equiniti.com
General questions: 877.253.6847
SAFE HARBOR STATEMENT     
The Community Financial System, Inc. Annual Report contains 
forward-looking statements, within the provisions of the Private 
Security Litigation Reform Act of 1995, that are based on current 
expectations, estimates, and projections about the industry, 
markets and economic environment in which the company 
operates. Such statements involve risks and uncertainties that 
could cause actual results to differ materially from the results 
discussed in these statements. These risks are detailed in 
the company’s periodic reports filed with the Securities and 
Exchange Commission.

COMMUNITY FINANCIAL SYSTEM, INC.
5790 Widewaters Parkway
DeWitt, NY 13214-1883
800.724.2262
communityfinancialsystem.com