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WESCO International

wcc · NYSE Industrials
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Ticker wcc
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Industry Industrial - Distribution
Employees 10,000+
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FY2023 Annual Report · WESCO International
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 Annual Report I 2023

We build, connect, power and protect the world.

 Annual Report 2023
Introduction  

Utilizing our broad portfolio of products and  
services, global reach, and technical expertise,  
Wesco creates solutions for customers that reduce 
operating and supply chain costs, increase energy 
efficiency, eliminate waste, maintain project 
schedules, and make it easier to do business  
overall. Our dedicated team has cultivated long-term 
relationships with customers who regard Wesco  

We Are Exceptionally Well-Positioned to Grow

as a critical supply chain partner and with suppliers 
who depend on Wesco as one of their largest 
customers. We are investing in digital capabilities that 
will transform our business, and lead the evolution of 
our industry. Combined with favorable secular trends, 
Wesco’s opportunity to grow, increase profitability, 
and create more value is greater than ever before.

2023 Sales By Region

Global Reach 
Wesco provides an in-country and regional support structure  
that meets customers’ needs for rapid deployment, scalability,  
global sourcing, multi-currency transactions, and local  
inventory in the Americas, EMEA, and Asia-Pacific.

800 branches,  
warehouses and sales offices 
More than 50 countries  

United States

Canada

2023 Sales by Region 

Other international

  United States 

           74%

  Canada 

          13%

  Other International          13%

 
2023 Sales by Segment

2023 Sales

Electrical and  
Electronic Solutions (EES):

Sub-segment 
EES

$8.6 

billion in sales

Sub-segment CSS
Construction

Communications and  
Security Solutions (CSS):

Industrial

OEM

$7.2 

billion in sales

Sub-segment UBS
Enterprise Network Infrastructure

Construction 

Industrial    

OEM    

Enterprise Network  
Infrastructure

Security Solutions

Data Center

Electrical & Electronic Solutions
EES 

 38%

Utility and Broadband  
Solutions (UBS): 

Security

Data Center

Communicatons & Security Solutions

CSS      

 32%

Utility & Broadband Solutions

UBS    

 30%

$6.6 

billion in sales

Utility

Broadband  

Integrated Supply  

Utility

Broadband

Integrated Supply

Financial Highlights 
(In millions, except per share data, percentages and ratios)

Net sales 

Adjusted EBITDA 1,2 

Adjusted EBITDA margin % 

Adjusted diluted EPS2 

Financial leverage ratio2,3  

            2019         2020         2021         2022         2023

           $8,359         $12,326       $18,218         $21,420         $22,385

                 431 

       660            1,176              1,726              1,705

               5.2% 

    5.4% 

          6.5% 

8.1%               7.6%

                5.20 

      4.37 

            9.98               16.42              14.60

                  2.7 

       5.3 

          3.9 

    2.9                   2.8

1 EBITDA defined as earnings before interest, taxes, depreciation and amortization. 
2 Non-GAAP financial measures are reconciled in the appendix at the back of the report.  
3 Financial leverage ratio for the year ended December 31, 2020 is based on pro forma adjusted EBITDA which gives effect to the combination of    
  Wesco and Anixter as if it had occurred at the beginning of such period. 

Corporate Profile
Wesco International (NYSE: WCC) builds, connects, powers and protects the world. Headquartered in Pittsburgh, 
Pennsylvania, Wesco is a FORTUNE 500® company with more than $22 billion in annual sales and a leading provider 
of business-to-business distribution, logistics services and supply chain solutions. Wesco offers a best-in-class 
product and services portfolio of Electrical and Electronic Solutions, Communications and Security Solutions, and 
Utility and Broadband Solutions. The Company employs approximately 20,000 people, partners with the industry’s 
premier suppliers, and serves thousands of customers around the world. With millions of products, end-to-end 
supply chain services, and leading digital capabilities, Wesco provides innovative solutions to meet customer 
needs across commercial and industrial businesses, contractors, government agencies, educational institutions, 
telecommunications providers, and utilities. Wesco operates nearly 800 branches, warehouses and sales offices 
in more than 50 countries, providing a local presence for customers and a global network to serve multi-location 
businesses and global corporations.

 
 
 
 
 
 
 
  
  
 
  
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
              
 To Our Stockholders,
Employees, and
Business Partners

Strengthened balance sheet – rapidly  
de-levered our balance sheet by three turns, 
one year ahead of schedule. 

Superior shareholder returns – since closing 
the Anixter acquisition in June 2020 through 
the end of 2023, total shareholder return was 
353% compared to 62% for the S&P 500. 

As we begin 2024, we remain laser-focused on 
the continued effective execution of our three 
enterprise strategies: 

1. Extend our industry-leading scale and  
     value proposition. 

2. Further develop our team and our culture  
     of excellence.  

3. Digitalize and transform our B2B business. 

“

  Following two years 
of double-digit sales 
growth, we set a new 
company record again in 
2023 with 5% growth to 
over $22 billion in sales.

”

Following two years of double-digit sales 
growth, we set a new company record again 
in 2023 with 5% growth to over $22 billion in 
sales. As a leading provider of business-to-
business supply chain solutions, our Wesco 
team navigated through a mixed economic 
environment last year, while managing 
changing customer buying patterns as supply 
chains healed. We saw continued growth in 
utility, data center, industrial, security and 
network infrastructure applications, while 
others underperformed including broadband, 
select OEM and specific construction-related 
sectors. We finished the year with backlog 
near a historical high level. Our free cash 
flow generation strengthened as we moved 
through the year, and we returned one third 
of our full-year cash flow to shareholders 
through the initiation of a common stock 
dividend and share repurchases. 

2023 also marked the successful completion 
of our three-year integration of Anixter.  
The acquisition of Anixter literally 
transformed Wesco. This combination not 
only established Wesco as the clear leader  
in several of our businesses, but it also mix-
shifted our company to higher growth and 
higher margin end-markets, reducing our 
cyclicality and increasing our resilience across 
all phases of the economic cycle. Looking at 
our performance metrics since the acquisition 
underscores the extraordinary performance 
and commitment of the entire Wesco team. 

Synergy capture – far exceeded all our  
initial operational and synergy targets set  
at the time of the Anixter acquisition.

Above-market sales and profit growth – 
sales increased 30% and adjusted EBITDA 
increased 89% versus the 2019 performance 
of the standalone companies, and EBITDA 
margin expanded 240 basis points.

An Award  
Winning  
Company

Extend Our Industry-
Leading Scale and  
Value Proposition 

As a leading provider of B2B distribution, 
logistics services and supply chain solutions, 
we serve an impressive array of blue-chip 
customers.  We sit in the middle of the value 
chain between our supplier partners and our 
customers, putting us in the best position  
to help them succeed. 

Our industry-leading value proposition 
utilizes our scale and expanded portfolio 
of products, services, and solutions to 
outperform the market and our competition.  
We are exceptionally well-positioned 
to capture the benefits of the ongoing 
secular growth trends and the increased 
infrastructure investments in our markets.  
We are continuing to invest in our core 
capabilities and execute our cross-sell 
initiatives to leverage these trends and 
outperform the market for years to come.

Further Develop Our 
Team and Our Culture  
of Excellence 

The tremendous contributions our people 
are making to our business and in our 
communities are a testament to our 
continuous focus on our culture of excellence.  
Wesco was again recognized for our corporate 
responsibility and sustainability programs.  
We were named one of Fortune’s World’s 
Most Admired Companies again this year with 
a #2 ranking in the Diversified Wholesalers 
category. Our company strategy, performance 
and management were recognized as well. We 
were named the Best Sustainable Supply Chain 
Strategy, USA, by Capital Finance International 
for the second year and to The Drucker 
Institute’s list of the Best Managed Companies 
in the World. Wesco was also named Most 
Innovative B2B Supply Chain Solutions, North 
America, by Pan Finance magazine for the first 
time this year.

In 2023, we published our new Global Human 
Rights Principles, formalizing our promise to 
respect human rights and implement business 
practices that align with principles outlined  

by the United Nations Global Compact.   
Our efforts to support our local communities 
also continued to grow and our colleagues 
around the world have increased 
their engagement. This past year we 
commemorated our inaugural Day of Caring 
and celebrated achieving our centennial 
anniversary goal of 100 new home builds with 
Habitat for Humanity. We launched our new 
giving platform that made it easier than ever 
for employees to volunteer and donate.  
Since then, our colleagues donated to over  
260 organizations and volunteered with more  
than 50 charities.

Our work to prevent injury and promote the 
health and safety of our employees around 
the world has continued to earn Wesco a 
strong reputation. Although one injury is too 
many, I am pleased to report that our total 
reportable injury rate (TRIR) for 2023 was 0.50, 
which is well below the distribution industry 
benchmark of 1.3.

Digitalize and Transform 
Our B2B Business

As a market leader, we expect to benefit from 
our global capabilities, leading scale, and 
expanded portfolio of products, services, 
and supply chain solutions. Our substantial 
investment and commitment to our digital 
transformation are expected to magnify those 
benefits as we roll out that program over the 
next 36 months.  

We’re building a new tech stack and digital 
IT ecosystem that includes best-in-class 
digital applications, products and services 
integrated into our proprietary architecture.  
We have established digital centers of 
excellence in India and Ireland to support 
our digital development efforts. Our new 
front-, middle- and back-office systems use 
artificial intelligence and machine learning to 
unlock the power of our big data and improve 
our business. Our investment in digital 
technologies and advanced data and analytics 
is intended to have a multiplying effect on our 
business and to generate even greater success 
for our customers and supplier partners.  
Our digital transformation is making our vision 
of becoming the best tech-enabled supply 
chain solutions provider in the world, a reality.

”

“

  Our investment in digital technologies and advanced data and analytics 
is intended to have a multiplying effect on our business and to generate 
even greater success for our customers and partners.

Moving to the Future Faster

Today, Wesco is much more than a traditional distributor.   
We are a critical partner to both our suppliers and our global 
set of customers. The combination of Wesco and Anixter has 
created a new paradigm. Our ongoing digital transformation  
is designed to take that new paradigm and create the Wesco  
of tomorrow, further empowering us to capitalize on the  
long-term secular trends from which we are uniquely 
positioned to benefit. 

”

Thank you to our stockholders for your continued 
investment in Wesco. Thank you to our supplier partners 
and customers for your continued support and trust. And, 
thanks to every member of our Wesco team for all that you 
do to build, connect, power and protect our world. 

John J. Engel
Chairman, President and Chief Executive Officer

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K

(Mark One)
☑

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
1934

For the fiscal year ended December 31, 2023

or

☐

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934

For the transition period from

to

Commission file number 001-14989
WESCO International, Inc.
(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of
incorporation or organization)
225 West Station Square Drive

Suite 700

Pittsburgh, Pennsylvania

(Address of principal executive offices)

25-1723342

(I.R.S. Employer
Identification No.)

15219
(Zip Code)

(412) 454-2200
(Registrant’s telephone number, including area code)
SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, par value $.01 per share

Depositary Shares, each representing a 1/1,000th
interest in a share of Series A Fixed-Rate Reset
Cumulative Perpetual Preferred Stock

WCC

WCC PR A

New York Stock Exchange

New York Stock Exchange

SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes  No 
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act. Yes  No 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange

Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days. Yes  No 

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to

Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was
required to submit such files). Yes  No 

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and
“emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer

Non-accelerated Filer

☑

☐

Accelerated Filer

Smaller reporting company

Emerging growth company

☐

☐

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying

with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its
internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting
firm that prepared or issued its audit report. 

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant

included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based
compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No 
The registrant estimates that the aggregate market value of the voting shares held by non-affiliates of the registrant was approximately $9.1
billion as of June 30, 2023, the last business day of the registrant’s most recently completed second fiscal quarter, based on the closing price on
the New York Stock Exchange for such stock.

As of February 16, 2024, 50,953,600 shares of Common Stock, par value $.01 per share, of the registrant were outstanding.

Part III of this Form 10-K incorporates by reference portions of the registrant’s Proxy Statement for its 2024 Annual Meeting of Stockholders.

DOCUMENTS INCORPORATED BY REFERENCE:

[THIS PAGE INTENTIONALLY LEFT BLANK]

TABLE OF CONTENTS

PART I
Item 1. Business
Item 1A. Risk Factors
Item 1B. Unresolved Staff Comments
Item 1C. Cybersecurity
Item 2. Properties
Item 3. Legal Proceedings
Item 4. Mine Safety Disclosures

PART II
Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity

Securities

Item 6. [Reserved]
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Item 7A. Quantitative and Qualitative Disclosures About Market Risk
Item 8. Financial Statements and Supplementary Data
Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure
Item 9A. Controls and Procedures
Item 9B. Other Information
Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

PART III
Item 10. Directors, Executive Officers and Corporate Governance
Item 11. Executive Compensation
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Item 13. Certain Relationships and Related Transactions, and Director Independence
Item 14. Principal Accountant Fees and Services

PART IV
Item 15. Exhibits and Financial Statement Schedule
Item 16. Form 10-K Summary
Signatures

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[THIS PAGE INTENTIONALLY LEFT BLANK]

Item 1. Business. 

PART I 

In this Annual Report on Form 10-K, “Wesco” refers to WESCO International, Inc., and its subsidiaries and its predecessors 
unless the context otherwise requires. References to “we,” “us,” “our” and the “Company” refer to Wesco and its subsidiaries. 

The Company 

WESCO  International,  Inc.  (“Wesco  International”)  and  its  subsidiaries  (collectively,  “Wesco”  or  the  “Company”), 
headquartered in Pittsburgh, Pennsylvania, is a leading provider of business-to-business distribution, logistics services and supply 
chain solutions. 

We employ approximately 20,000 people, maintain relationships with more than 50,000 suppliers, and serve nearly 150,000 
customers  worldwide.  With  millions  of  products,  end-to-end  supply  chain  services,  and  leading  digital  capabilities,  Wesco 
provides  innovative  solutions  to  meet  customer  needs  across  commercial  and  industrial  businesses,  contractors,  government 
agencies,  educational  institutions,  telecommunications  providers,  and  utilities.  Our  innovative  value-added  solutions  include 
supply chain management, logistics and transportation, procurement, warehousing and inventory management, as well as kitting 
and labeling, limited assembly of products and installation enhancement. Wesco operates nearly 800 branches, warehouses and 
sales offices in approximately 50 countries, providing a local presence for customers and a global network to serve multi-location 
businesses and global corporations. 

Business Segments and Industry Overview 

Wesco  has  operating  segments  comprising  three  strategic  business  units  consisting  of  Electrical  &  Electronic  Solutions 

(“EES”), Communications & Security Solutions (“CSS”) and Utility & Broadband Solutions (“UBS”). 

The following is a description of each of our business segments and the industries in which they operate. 

Electrical & Electronic Solutions 

The EES segment, with approximately 6,800 employees supporting customers in more than 50 countries, supplies a broad 
range of products and solutions primarily to the construction, industrial and original equipment manufacturer (“OEM”) markets. 
Construction and industrial customers include a wide array of contractors, and engineering, procurement and construction firms 
for industrial, infrastructure, commercial, and data and broadband communications projects. Specific applications include projects 
for  refineries,  railways,  wastewater  treatment  facilities,  data  centers,  security  installations,  offices,  and  modular  and  mobile 
homes. OEM customers require products used in the manufacturing of automotive, industrial, medical, transportation, marine, 
military and communications equipment. The product portfolio in this business includes a broad range of electrical equipment 
and supplies, automation and connected devices (the “Internet of Things” or “IoT”), security, lighting, wire and cable, safety, and 
maintenance, repair and operating (“MRO”) products from industry-leading manufacturing partners. The EES service portfolio 
includes contractor solutions to improve project execution, direct and indirect manufacturing supply chain optimization programs, 
lighting and renewables advisory services, and digital and automation solutions to improve safety and productivity. The EES 
segment  operates  in  highly  fragmented  markets  that  include  thousands  of  small,  regional  and  locally-based  privately  owned 
competitors, as well as several large, multi-national companies. 

2

 
 
 
Communications & Security Solutions

The CSS segment, with approximately 4,400 employees supporting customers in more than 50 countries, is a global leader in
the network infrastructure and security markets. The network infrastructure market comprises cabling and connectivity, racks and
cabinets, power, wireless, and associated products that enable network connectivity and communications in commercial buildings,
and hyperscale, cloud-based and multi-tenant data centers. The security market includes video surveillance, fire and intrusion
detection, access control, door locking and other solutions that create safe and smart environments for customers. Both the
network infrastructure and security businesses are large, fragmented and diverse markets that include various industry groups
such as technology, finance, telecommunications service providers, transportation, education, government, healthcare and retail.
CSS sells products directly to end-users or through various channels including data communications contractors, security,
network, professional audio/visual and systems integrators. In addition to the core network infrastructure and security portfolio,
CSS has a broad offering of safety and energy management solutions. CSS products are often combined with supply chain services
to increase efficiency and productivity, including installation enhancement, project deployment, advisory, and IoT and digital
services.

Utility & Broadband Solutions

The UBS segment, with approximately 2,900 employees supporting customers primarily in the U.S. and Canada, provides
products and services to investor-owned utilities, public power companies, including municipalities, as well as global service
providers, wireless providers, broadband operators and the contractors that service these customers. Investor-owned utility
companies provide a combination of electric generation, transmission and/or distribution and are owned by investors or
shareholders while public power entities are generally non-profit entities owned by their members or governed by local, state, or
municipal governments. These two markets comprise the vast majority of utility customers in the U.S. and Canada. The UBS
segment also includes Wesco’s integrated supply business, which provides products and services to large industrial and
commercial end-users to support their MRO spend. The products sold into the utility and broadband markets include wire and
cable, transformers, transmission and distribution hardware, switches, protective devices, connectors, lighting, conduit, fiber and
copper cable, connectivity products, pole line hardware, racks, cabinets, safety and MRO products, and point-to-point wireless
devices. UBS also offers a complete set of service solutions including fiber project management, high and medium voltage project
design and support, pre-wired meters and capacitor banks, meter testing and advanced metering infrastructure installation,
personal protective equipment dielectric testing, tool repair, emergency response management, storage yard management,
materials management, and logistics management to improve customer supply chain efficiencies.

For information concerning the financial results of our business segments, as well as our domestic and foreign operations, see

Note 16, “Business Segments” in the Notes to Consolidated Financial Statements.

3

Business Strategy

Our Vision
Be the best tech-enabled
supply chain solutions provider in the world.

Our Mission We build, connect, power and protect the world.

Our Core5 Values

Our people are
our greatest asset.

One team.

Always strive
to be the best.

Innovation.

Winning with
customers and suppliers.

Our Foundational Strategies

Extend our industry-leading
scale and value proposition.

Further develop our team and
our culture of excellence.

Digitalize and transform
our B2B business.

Wesco’s vision is to be the best tech-enabled supply chain solutions provider in the world. We believe that accomplishing this

vision depends on the successful execution of our strategy, which comprises three elements:

Extend Our Leading Scale and Value Proposition: Our long-term growth potential benefits from secular trends in
electrification, automation/IoT, green energy and utility grid modernization, 24/7 connectivity and security, supply chain
consolidation, and digitalization/artificial intelligence. Our broad portfolio of product and service offerings, as well as our global
footprint and capabilities, enables us to provide value to our customers.

Further Develop the Organization and Our Culture of Excellence: Wesco's five core values are foundational to everything
we do: Our people are our greatest asset, One team, Always strive to be the best, Innovation, and Winning with customers and
suppliers. Safety remains a priority and a company-wide responsibility at Wesco. Our goal is to provide a safe work environment
for our employees and all those who visit our facilities. Our education and awareness campaigns for employees include training
for our branches and distribution centers, enhanced reporting and investigative tools, and reinforced processes at the local branch
level. Additionally, our commitment to continuous improvement is a hallmark of our business, and we do so by deploying Lean
business practices and Agile methodologies. Wesco continues to enhance its approach to Environmental, Social, and Governance
(“ESG”) matters, including integrating sustainability into our corporate strategy, and expanding our employee training and
leadership development programming, as well as our Inclusion and Diversity program.

Digitalize and Transform the Business: The role of digital business models in our industry has accelerated over the past
several years. Wesco offers significant digital capabilities today and intends to lead the further digitalization of our industry in
the years to come. We are implementing digital tools across our business to improve the efficiency of our operations as well as
those of our business partners, make it easier to do business with Wesco, and increase the value of our data by providing unique
insight into end-market use of the products and services we offer.

The three elements of our strategy touch every aspect of our business – from how we add value to our supplier partners and
how we go-to-market within our three strategic business units to how we drive efficiency across the organization. We believe that
the successful execution of these strategies, combined with our comprehensive product and service offerings, will provide cost-
effective and innovative end-to-end supply chain solutions for a diverse set of customers across our end markets. Due to our
leadership position, scale, global reach, complete portfolio of products, extensive services and insights from data, we expect to
grow our sales over the long term at a faster rate than the overall industry.

As a distribution and supply chain services company, our approach to sustainability is to reduce the environmental impacts of
our own operations and assist our customers and suppliers with attaining their sustainability goals through the products and
services we provide. We do this by designing and providing solutions to help them reduce greenhouse gas (“GHG”) emissions at
their facilities and in their supply chains, improve productivity through automation and increase output more efficiently and

4

effectively through digital tools and applications. We build on our own internal strategies for sustainability, while reinforcing our
corporate responsibility. Our sustainability efforts are an integral part of our operations and core values.

Customers

We have a large base of nearly 150,000 active customers across commercial and industrial businesses, contractors, government
top ten customers accounted for

agencies, educational
approximately 11% of our sales in 2023. No one customer accounted for more than 2% of our sales in 2023.

telecommunications providers, and utilities. Our

institutions,

Suppliers

Our global network of branches, warehouses and sales offices provide customers with access to millions of products. Specific
locations tailor their inventories to meet the needs of their customers, providing a local presence and a global network to service
multi-location businesses and global corporations.

We purchase products from a diverse group of more than 50,000 suppliers who are located predominantly in North America,
but who manufacture products around the world. The main product categories we source are electrical distribution and controls,
communications and security, wire, cable and conduit, lighting and sustainability, automation and motors, and general supplies.
In 2023, our ten largest suppliers accounted for approximately 27% of our purchases. No one supplier accounted for more than
5% of our total purchases.

Our supplier relationships are important to us, providing access to a wide range of products, services, technical training, and
sales and marketing support. We have commercial agreements with more than 480 preferred suppliers and purchase approximately
66% of our products pursuant to these arrangements.

We offer a wide range of sustainable products from the world’s leading manufacturers and help our customers determine
solutions to meet their sustainability goals. Key categories include energy-efficient products, energy-management solutions,
renewable energy products, sustainable MRO products, and workplace safety products.

Wesco supports socio-economic growth through supplier diversity and promoting the participation of minority, women,
aboriginal, disabled, veteran, and LGBTQ+-owned enterprises in our business. Wesco's Diversity Alliance Network and Diverse
Supplier Network partners provide customers with a direct procurement solution through a network of third-party certified
companies aligned to help customers meet their diversity goals.

Services

Our customers’ challenges are constantly evolving and require comprehensive yet practical solutions. As part of our overall
offerings, we provide a comprehensive portfolio of value-added solutions, as outlined below, designed to address our customers’
business needs, help drive efficiency, improve productivity, increase profitability, and mitigate risk.

•

Installation enhancement services to adapt products and packaging in order to streamline processes and reduce the total
cost of installation;

• Advisory services to help customers implement Lean practices, optimize their supply chains, improve safety, and

digitally transform their workplaces through technology and infrastructure solutions;

• Global solutions to create customizable programs that fit customers' business needs on a local, national and global scale;

•

Project deployment services to help secure job site materials, prevent loss, improve efficiency, reduce job site waste,
ensure day-to-day supplies are on hand and improve scalability across multifaceted deployments;

• Digital services and e-business integrations to transform how our customers consume, deploy, and procure materials and

technologies, supporting data-driven decisions and increased operational efficiency; and

•

Supply chain programs to improve productivity, reduce operating costs and increase operational efficiencies.

We are also a provider of services focused on energy efficiency and renewable power to reduce our energy consumption and
that of our customers. Our energy solutions business offers turnkey and retrofit solutions designed to reduce energy consumption

5

and improve building efficiency. We also have a team that focuses on providing technical support to installers and end-users of
solar products and solutions.

Business Strengths

Wesco’s mission is to help our customers build, connect, power and protect the world. We believe that our business possesses
several strengths that will enable us to achieve this mission. The environment in which we operate is highly fragmented and there
is significant competition within each end market and geographic area that we serve. Customers look to product line breadth,
product availability, service capabilities, geographic proximity and price. Our scale, broad portfolio of products, technical
expertise, global reach with local relationships, smart, digital solutions, and comprehensive value-added services provide distinct
advantages that benefit our customers.

Broad Portfolio of Products from Top Brands. Our broad product portfolio enables us to offer comprehensive, end-to-end
solutions in each of our three business units. We partner with the industries’ largest suppliers to deliver leading brands across
every product category including automation/IoT, broadband, communications, electrical, electronics, energy, lighting, MRO,
networking, renewables, safety, security, utility and wire and cable.

Customized Solutions. Our customers have unique business models, challenges and priorities. Our dedicated technical experts
have extensive experience and product knowledge that enable them to provide solutions tailored to the various needs of our
customers. With specialized industry knowledge and a focus on the latest technologies, we help design and deploy solutions that
address critical business priorities.

Uniquely Positioned to Benefit from Secular Trends. Each of our business units is positioned to benefit from secular trends
that are driving growth. These include increasing electrification, growth of automation/IoT, data center, green energy and utility
grid modernization, 24/7 connectivity and security, supply chain consolidation and relocation to North America, and
digitalization/AI.

Ingenuity and Expertise. Our teams are empowered with access to real-time information and tools that enable better decision-
making and facilitate easier interaction with customers. Our sales, service and operational specialists bring a depth of industry
experience spanning construction, manufacturing, electrical, renewables, lighting, communications, security, professional audio
and visual equipment, utility, broadband and more.

Innovative Digital Roadmap. We are investing in digital tools and platforms to enable a new level of collaboration, agility
to connected buildings and process

and productivity. From adaptable omni-channel e-commerce tools and platforms,
management, we are a supply chain partner that strives to match our customers’ digital needs and drive operational excellence.

Global Reach with Local Expertise. Our international operations and global sourcing capabilities enable us to service our
customers around the world. Wesco has nearly 800 branches, warehouses and sales offices with operations in approximately 50
countries. Our global distribution network includes 54 facilities that operate as regional distribution centers or large branch
locations in key geographic areas in North America, Europe and South America. These facilities add value for our customers and
suppliers through the combination of inventory selection, online ordering, shipment capabilities, and order handling and
fulfillment. Our global network allows us to enhance local customer service by tailoring individual branch products and services
to local customer needs.

Smart, Digital Solutions. Our work with technology companies brings capabilities in digital and information-based solutions.
These solutions include global e-commerce platforms, vendor managed inventory, point of use systems, last mile optimization,
supply chain engineering and intelligent automation. From enterprise-wide connectivity to real-time analytics and reporting, our
digital ecosystem supports our customers’ business needs.

Comprehensive Value-Added Services. We provide a wide range of value-added services, which draw on our product
knowledge and logistics expertise, to help our customers save time, improve productivity, mitigate risk and increase profitability.
Our broad service offering includes installation enhancement, materials management, kitting and labeling, extensive MRO
solutions, onsite job trailer solutions, end-to-end supply chain management and project management/execution across the project
lifecycle.

Geography

6

We sell to global customers through our network of branches, warehouses and sales offices consisting of 450 locations in the
U.S., 144 in Canada, 59 in Europe and the Middle East, 51 in Central America, the Caribbean and South America, and 66 in the
Asia Pacific region, which includes Australia. This includes 54 facilities that operate as regional distribution centers or large
branch locations, of which 42 are located in the U.S., eight in Canada, two in Europe and two in South America.

Human Capital

At Wesco, our people and our high-performance culture are our greatest assets. We are committed to continuous improvement
and leveraging our talented and diverse workforce in pursuing Wesco’s vision to be the best tech-enabled supply chain solutions
provider in the world. We also believe that our employees should be treated with dignity and respect. Our Human Rights Policy
promotes safety in the workplace, training, diversity, disabled employee accommodations, and freedom of association and
collective bargaining. It prohibits discrimination, harassment, and child and forced labor. It also provides guidance on appropriate
working hours, wages and benefits, and safe and healthy workplace conditions.

As of December 31, 2023, Wesco had approximately 20,000 full-time employees worldwide, with approximately 13,000 in

the U.S. and the remaining 7,000 in international locations.

Safety. Safety is the first tenet of our core value of commitment to our people and we do not tolerate violations of established
safety protocol. We work to reduce or eliminate health and safety risks through dedicated programs, leadership commitment, and
employee best practice sharing and training. We seek to achieve continuous improvement in the safety of our facilities and track
a series of metrics that provide guidance toward that improvement.

Our Global Corporate Safety team oversees our health and safety program, which covers the core processes and procedures
for strong health and safety management, safe work practices, and regulatory compliance. Our health and safety program
considers both preventative and reactionary management concepts and elements of the OHSAS-18001 and ISO-45001 guidelines
and standards, and the strictest global regulations. The key components of our health and safety program are management and
supervisory responsibilities, employee responsibilities, accident investigation process, reporting of safety concerns and ideas,
safety committee systems, new employee orientation, enforcement, and regulatory compliance.

We have set a goal to achieve a 15% reduction in the total recordable injury rate (“TRIR”) from a 2020 baseline by 2030.

Training and Development. Wesco offers certification and training programs, some of which are required for all employees
while others are voluntary or based on job role. Employees also have access to external training resources. We offer a tuition
reimbursement program to eligible employees to encourage the pursuit of undergraduate and graduate education to prepare
employees for expanded roles in our business.

Our sales and operations development training program has been in place for more than ten years. The program is designed
to systematically train and develop new college graduates through on-the-job rotations and cohort learning and development
during the first year of employment. Graduates of the program move into various sales and operations roles after completing the
one-year program. Additionally, we have a function-specific development program for recent college graduates seeking a career
in IT, finance, or supply chain that provides members with eligibility for roles with increasing responsibilities commensurate with
their career development goals. Individuals in this program have the opportunity to accelerate the development of their business
and technical skills through three 8-month job rotations. We also sponsor a summer internship program to provide college students
with work experience within staff or business functions and give them the opportunity to evaluate different career fields.

We have developed aco llective approach to deliver personalized, successive development aligned with enterprise needs,
known as “Leadership Essentials.” Leadership Essentials consists of separate programs curated for managers that are new to
leading people, leaders of teams, or senior leaders. The programs include personalized development journeys which are aligned
to both the individual's and the Company's needs. In 2023, Wesco also launched a development campaign to provide specific
tools and resources to help leaders across the enterprise support ongoing transformational change.

Inclusion and Diversity. Wesco’s focus on inclusion and diversity starts in our boardroom. As of December 31, 2023, Wesco’s
Board of Directors was 60% diverse in terms of gender, race or ethnicity. Our inclusion and diversity initiatives extend to all
levels of our organization, and we aim to increase the representation of diverse employees through internal promotions, new hires
and improved retention, with an inclusion and diversity program that fosters ase nse of individual and group belonging.

7

The objectives of Wesco’s inclusion and diversity program are to 1) leverage the unique experiences and perspectives of our
talented workforce to support Wesco’s mission, 2) engage employees and build an inclusive culture, 3) recruit and develop talent
that brings new perspectives and thought processes to Wesco, 4) increase representation of suppliers that are owned and operated
by teams with diverse backgrounds, and 5) support the communities in which we operate.

Wesco’s Global Inclusion and Diversity Council (the “Council”) is led by our Vice President of Inclusion and Diversity and
comprises members of senior management who help to ensure that Wesco is making progress toward achieving our program
objectives. Wesco has six Business Resource Groups (“BRGs”) to support the following groups: women, BLIPOC (Black, Latino,
Indigenous, and People of Color), LGBTQ+, people with diverse abilities, veterans of the armed forces and our early-career
employees. These BRGs foster a sense of community and inclusion, provide opportunities to network, support advancement
opportunities within the organization, and assist with recruiting. The BRGs are global and open to all employees regardless of
any aspect of their personal identity. More than 3,300 employees from around the globe and at every level of the organization
have joined one or more of the BRGs.

Some of the many benefits of our BRGs include:

•

•

•

•

Supporting our business initiatives;

Creating a more inclusive work environment;

Providing opportunities for employee development, education, training, recruitment, retention, and business outreach
and development; and

Supporting innovation by providing insights into new markets, product development, and multicultural marketing.

Wesco has also established a diverse leadership program for the purpose of promoting the development of our diverse

emerging leaders and providing direction for career advancement through exposure to new opportunities.

Company Ethics. We are firmly committed to operating with the highest level of ethics and integrity. This commitment is
reflected in our Code of Business Conduct, which applies to our Directors, officers, employees and other parties when they are
acting on behalf of Wesco. Annually, employees must acknowledge that they have received, read and will comply with the Code
of Business Conduct. Our global Ethics and Compliance program provides employees with the tools they need to understand our
expectations for ethical business conduct. It also provides an anonymous reporting channel for employees and outside parties to
report issues of concern regarding workplace activities or business practices without fear of retaliation.

Compensation and Benefits Program. Wesco provides competitive compensation and benefits packages in our locations
around the globe. In the U.S., we provide a comprehensive benefits program that offers choices to fit our employees’ diverse
needs including health and disability benefits, paid time off (including a self-managed time off policy for certain eligible
employees), life insurance, retirement programs, and access to other services that support health and wellness. To further improve
the health of our employees, we offer a variety of activities and programs that assist our employees and their family members to
better manage or overcome major well-being challenges, including an employee assistance program, wellness coaching,
case/disease management and wellness discounts.

Employee Engagement. We believe that employee engagement is not only good for our people; it also benefits various aspects
of our business, from safety to improved productivity and customer service. Wesco regularly surveys employees to assess their
engagement, as well as to solicit feedback and ideas on organizational changes, so senior management may more intelligently
adjust to our employees’ evolving needs and support employee success. Wesco also promotes employee engagement through
regular town hall discussions.

Community. Wesco has established relationships with several charitable organizations and encourages employees to volunteer
in the community by providing one day of paid volunteer time off per year. By connecting with and contributing to local charitable
organizations, Wesco supports the development of strong, vibrant and diverse communities. Wesco Cares is our corporate
philanthropy program focused on affordable housing and humanitarian aid and provides for corporate charitable donations,
employee volunteerism, and employee gift-matching. In 2023, June 22nd became an annual day of caring for Wesco employees
globally on which employees are encouraged to volunteer in their communities.

8

Environmental Management

Environmental sustainability is a priority for Wesco. We strive to continually improve our environmental management by
establishing and working towards various sustainability objectives. We leverage our environmental management experience in
our offerings of products and services to our customers. The foundation of our environmental management is our Global
Environmental, Health, Safety and Sustainability Policy, which aligns with key provisions of the ISO 14001:2015 environmental
management standards. The policy includes clear management accountability for environmental sustainability, direct program
responsibilities, key performance indicators and other metrics to track progress. We produce a Sustainability Report annually
which is made public on our website. Information contained in the Sustainability Report is not part of, and should not be construed
as being incorporated by reference into, this Annual Report on Form 10-K.

We are working to reduce our environmental impact in the following areas:

Energy. The vast majority of the energy we use is for lighting, heating, and cooling our nearly 800 branches, warehouses, and
sales offices in approximately 50 countries around the world. Where practicable, we engage with the owners and agents of the
buildings we lease to improve energy efficiency, and we include energy-efficiency requirements in new building leases. We have
implemented lighting retrofit projects, identified participation plans to purchase green power through utility green tariffs, and
installed solar systems at certain facilities. Adding to our energy consumption is a fleet of approximately 1,300 trucks and 1,700
cars for our distribution and sales activities. Our Fleet Efficiency Policy includes the use of fuel-efficient vehicles, determining
the most efficient routes, and idling restrictions.

Emissions. Our main source of direct and indirect GHG emissions from our own activities is attributed to the power and
natural gas used by our facilities, which accounts for approximately 70% of total emissions from our own activities. As such, the
energy efficiency of our buildings is a key focus of our emissions-reduction activities. A secondary source of our GHG emissions
is our truck and car fleet, and part of our emissions is due to corporate travel and the lifecycle impact of our landfilled waste. We
have implemented policies and technology to reduce the emissions impact of our fleet, which included evaluation of alternative
fuel sources and an assessment of electric vehicle integration into our truck and sales fleet.

We have a goal to reduce absolute direct and certain indirect GHG emissions by 30% from a 2021 baseline by 2030.

Climate Impact. Wesco aligns with the Task Force on Climate-Related Financial Disclosures (“TCFD”) framework. We
annually review environmental programs, policies, and data, including energy consumption and GHG emissions to identify and
assess climate-related risks. The Board of Directors oversees the integration of ESG principles throughout our enterprise. This
includes oversight of enterprise risk. Our Board of Directors receives regular updates and ongoing information on significant
risks and risk mitigation plans. Our ESG management team also reports to the Board of Directors annually on the status of our
ESG programs and progress on achieving sustainability goals. We have identified climate-related opportunities that include
expanding our offering of energy-efficient and renewable energy products. As attention and interest grow for climate mitigation
solutions, we believe that Wesco is well positioned to expand our business in these energy efficiency and renewable energy
technologies and projects.

Waste. Our top three waste streams are cardboard, wood pallets and reels, and plastic. We strive to reduce these waste streams
by applying Lean principles and identifying opportunities for reuse and recycling. We have developed regional relationships with
recycling vendors that recycle non-traditional waste streams, specifically metal and wood.

We have a goal to reduce landfill waste intensity by 15% across our U.S. and Canadian locations from a 2020 baseline by

2030.

Water. As a distributor and supply chain solutions provider, we are not a major consumer of water. Our facilities primarily use
water for sanitation, cleaning, and irrigation purposes. We track water usage at our locations and use the data to identify unusual
consumption patterns that could indicate undetected leaks or excessive usage that requires intervention.

Intellectual Property

We work to protect our intellectual property through a combination of trademarks, patents and trade secrets, applicable
intellectual property laws, confidentiality procedures and contractual provisions. We currently have trademarks, patents and
service marks registered with the U.S. Patent and Trademark Office and in various other countries. The “Wesco” and “Anixter”
trademarks and service marks are registered in the U.S. and various foreign jurisdictions, and the “EECOL” service mark is

9

registered in Canada. The trademarks and service marks filed in the U.S. include, among others: “Wesco®” and our corporate
logo. We have also applied to register international trademarks, patents, and service mark applications in various foreign
jurisdictions. While our patents have value, none is so essential that its loss would materially affect our business.

Environmental Matters

Our facilities and operations are subject to federal, state and local laws and regulations relating to environmental protection
and human health and safety. Some of these laws and regulations may impose strict, joint and several liabilities on certain persons
for the cost of investigation or remediation of contaminated properties. These persons may include former, current or future
owners or operators of properties and persons who arranged for the disposal of hazardous substances. Our owned and leased real
property may give rise to such investigation, remediation and monitoring liabilities under environmental laws. In addition, anyone
disposing of certain products we distribute, such as ballasts, fluorescent lighting and batteries, must comply with environmental
laws that regulate certain materials in these products.

We believe that we are in compliance, in all material respects, with applicable environmental laws. As a result, we do not
anticipate making significant capital expenditures for environmental control matters either in the current year or in the near future.

Seasonality

Our operating results are not significantly affected by seasonal factors. Sales during the first and fourth quarters have
historically been affected by a reduced level of activity due to the impact of weather on projects. Sales typically increase beginning
in March, with slight fluctuations per month through October. During periods of economic expansion or contraction, our sales by
quarter have varied significantly from this pattern.

Website Access

Our Internet address is www.wesco.com. Information contained on our website is not part of, and should not be construed as
being incorporated by reference into, this Annual Report on Form 10-K. We make available free of charge under the “Investors”
heading on our website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and
amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as
amended (the “Exchange Act”), as well as our Proxy Statements, as soon as reasonably practicable after such documents are
electronically filed or furnished, as applicable, with the U.S. Securities and Exchange Commission (the “SEC”).

In addition, the charters for our Audit, Compensation, Executive and Nominating and Governance committees, as well as our
Corporate Governance Guidelines, Code of Principles for Senior Executives, Independence Policy, Global Antibribery and
Anticorruption Policy, and Code of Business Conduct for our Directors, officers and employees, are all available on our website
at the “Leadership” link under the “Our Company” heading.

Forward-Looking Information

This Annual Report on Form 10-K contains various “forward-looking statements” within the meaning of the Private Securities
Litigation Reform Act of 1995. These statements involve certain unknown risks and uncertainties, including, among others, those
contained in Item 1, “Business,” Item 1A, “Risk Factors,” and Item 7, “Management’s Discussion and Analysis of Financial
Condition and Results of Operations.” When used in this Annual Report on Form 10-K, the words “anticipates,” “plans,”
“believes,” “estimates,” “intends,” “expects,” “projects,” “will” and similar expressions may identify forward-looking statements,
although not all forward-looking statements contain such words. Such statements, including, but not limited to, our statements
regarding business strategy, growth strategy, competitive strengths, productivity and profitability enhancement, competition, new
product and service introductions and liquidity and capital resources, are based on management’s current expectations and beliefs,
as well as on assumptions made by and information currently available to management, current market trends and market
conditions and involve various risks and uncertainties, some of which are beyond our control and which may cause actual results
to differ materially from those contained in the forward-looking statements. Our actual results could differ materially from those
expressed in any forward-looking statement made by us or on our behalf. In light of these risks and uncertainties, there can be no
assurance that the forward-looking information will in fact prove to be accurate. We have undertaken no obligation to publicly
update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

10

Executive Officers

Our executive officers and their respective ages and positions as of February 20, 2024 are set forth below.

Name
John J. Engel
David S. Schulz
James F. Cameron

William C. Geary, II

Akash Khurana
Diane E. Lazzaris
Hemant Porwal
Nelson J. Squires III

Christine A. Wolf

Age
62
58
58

53

50
57
50
62

63

Position
Chairman, President and Chief Executive Officer
Executive Vice President and Chief Financial Officer
Executive Vice President and General Manager, Utility & Broadband
Solutions
Executive Vice President and General Manager, Communications &
Security Solutions
Executive Vice President and Chief Information and Digital Officer
Executive Vice President and General Counsel
Executive Vice President, Supply Chain and Operations
Executive Vice President and General Manager, Electrical &
Electronic Solutions
Executive Vice President and Chief Human Resources Officer

Set forth below is biographical information for our executive officers listed above.

John J. Engel has served as Chairman of the Board of Directors since May 2011 and as our President and Chief Executive
Officer since 2009. Previously, Mr. Engel served as our Senior Vice President and Chief Operating Officer from 2004 to 2009.
Before joining Wesco in 2004, Mr. Engel served as Senior Vice President and General Manager of Gateway, Inc., Executive Vice
President and Senior Vice President of Perkin Elmer, Inc., Vice President and General Manager of Allied Signal, Inc., and also
held various engineering, manufacturing and general management positions at General Electric Company.

David S. Schulz has served as our Executive Vice President and Chief Financial Officer since June 2020, and from October
2016 to June 2020, he served as Senior Vice President and Chief Financial Officer. Prior to joining Wesco, Mr. Schulz served as
Senior Vice President and Chief Operating Officer of Armstrong Flooring, Inc. from April 2016 to October 2016 and from
November 2013 to March 2016, he served as Senior Vice President and Chief Financial Officer of Armstrong World Industries,
Inc., and as Vice President, Finance of the Armstrong Building Products division from 2011 to November 2013. Prior to joining
Armstrong World Industries in 2011, he held various financial leadership roles with Procter &Ga mble and The J.M. Smucker
Company. Mr. Schulz began his career as an officer in the U.S. Marine Corps.

James F. Cameron has served as our Executive Vice President and General Manager of the Utility & Broadband Solutions
division since June 2020 and from January 2014 to June 2020 as Vice President and General Manager, Utility and Broadband
Group and as Regional Vice President of the utility business from 2011 to 2013. Prior to joining Wesco in 2011, Mr. Cameron
served as Senior Vice President of the Utility Group, and Vice President of Marketing & Operations with Irby, a Sonepar
Company. Earlier in his career, Mr. Cameron held various positions with Hubbell Power Systems, Thomas & Betts and the ABB
Power T&D Company.

William C. Geary, II has served as our Executive Vice President and General Manager of the Communications & Security
Solutions division since June 2020. Prior to the merger with Anixter in 2020, Mr. Geary served as Executive Vice President -
Network & Security Solutions of Anixter International Inc. from July 2017 to June 2020 and Senior Vice President - Global
Markets - Network & Security Solutions from January 2017 to June 2017. Previously, Mr. Geary served 22 years and held a
variety of senior management roles at Accu-Tech Corporation, a wholly owned subsidiary of Anixter.

Akash Khurana has served as our Executive Vice President and Chief Information and Digital Officer since joining the
Company in November 2020. Before joining Wesco, Mr. Khurana served as Chief Information Officer and Chief Data Officer of
Global information at McDermott from March 2015 to November 2020, Senior Director of Global Product Lines and Regional
P&Ls at Baker Hughes, and a variety of leadership roles at GE Healthcare and Power & Water Divisions.

Diane E. Lazzaris has served as our Executive Vice President and General Counsel since June 2020 and also as Corporate
Secretary from February 2021 to December 2023. She served as our Senior Vice President and General Counsel from 2014 to
June 2020, and as our Vice President, Legal Affairs from 2010 to December 2013. From 2008 to 2010, Ms. Lazzaris served as

11

Senior Vice President -Legal, General Counsel and Corporate Secretary of Dick’s Sporting Goods, Inc. From 1994 to 2008, she
held various corporate counsel positions at Alcoa Inc., including Group Counsel to a group of global businesses.

Hemant Porwal has served as our Executive Vice President, Supply Chain and Operations division since June 2020, and from
January 2015 to June 2020 as Vice President of Global Supply Chain and Operations. Before joining Wesco, Mr. Porwal served
as Vice President at Sears Holding Corporation, leading their global procurement function since 2011, and PepsiCo where he held
roles with increasing responsibilities in Operations, Supply Chain, Procurement and Finance.

Nelson J. Squires III has served as our Executive Vice President and General Manager of the Electrical & Electronic Solutions
division since June 2020, and from October 2019 to June 2020 he served as our Senior Vice President and Chief Operating Officer.
From January 2018 to September 2019, he served as Group Vice President and General Manager of Wesco
Canada/International/WIS and as Group Vice President and General Manager of Wesco Canada from August 2015 to January
2018. From 2010 to July 2015, he was Vice President and General Manager, North America Merchant Gases and President, Air
Products Canada of Air Products and Chemicals, Inc. He has also served in regional and general management positions, as director
of investor relations, and in various sales positions at Air Products. Earlier in his career, he was a Captain in the U.S. Army.

Christine A. Wolf has served as our Executive Vice President and Chief Human Resources Officer since June 2020, and from
June 2018 to June 2020 she served as Senior Vice President and Chief Human Resources Officer. Before joining Wesco from
2011 to June 2018, Ms. Wolf served as the Chief Human Resources Officer of Orbital ATK, Inc. until its acquisition by Northrop
Grumman. From 2008 to 2011, she served as the Chief Human Resources Officer of Fannie Mae and from 2004 to 2008 she
served as Chief Human Resources Officer of E*Trade Financial Corporation. Prior to that, she held various positions in human
resources with companies in a variety of industries.

12

Item 1A. Risk Factors.

The following factors, among others, could cause our actual results to differ materially from the forward-looking statements
we make. All forward-looking statements attributable to us or persons working on our behalf are expressly qualified by the
following factors. This information should be read in conjunction with Item 7, “Management’s Discussion and Analysis of
Financial Condition and Results of Operations”, Item 7A, “Quantitative and Qualitative Disclosures about Market Risks” and the
consolidated financial statements and related notes included in this Form 10-K.

Risks Related to the Global Macroeconomic Environment and Our International Operations

Adverse conditions in the global economy and disruptions of financial and commodities markets could negatively impact
us and our customers.

Our results of operations are affected by the level of business activity of our customers, which in turn is affected by global
economic conditions and market factors impacting the industries and markets that they serve. Certain global economies and the
financial and commodities markets continue to experience significant uncertainty and volatility. Adverse economic conditions,
disruptions in financial markets or lack of liquidity in these markets, particularly in North America, including those caused by
political risk or instability, may adversely affect our revenues and operating results. Disruptions in financial markets can cause
increases in interest rates and borrowing costs. Economic and financial market conditions may also affect the availability or the
cost of financing for projects and for our customers' capital or other expenditures, which can result in project delays or
cancellations and thus affect demand for our products. There can be no assurance that any governmental responses to economic
conditions or disruptions in the financial markets ultimately will stabilize the markets or increase our customers' liquidity or the
availability of credit for us or our customers. Although no single customer accounts for more than 2% of our sales, a payment
default by one of our larger customers could have a negative short-term impact on earnings or liquidity. A financial or industry
downturn could have an adverse effect on the collectability of our accounts receivable, which could result in longer payment
cycles, increased collection costs and defaults, and limit our ability to borrow additional funds. Should one or more of our larger
customers declare bankruptcy, it could adversely affect the collectability of our accounts receivable, along with credit loss reserves
and net income. In addition, our ability to access the capital markets may be restricted at a time when we would like, or need, to
do so.

The economic, political and financial environment may also affect our business and financial condition in ways that we
currently cannot predict. The Russia-Ukraine and Middle East conflicts, and resulting international responses, have contributed
to further volatility and uncertainty in the global financial and commodities markets, resulting in fluctuations in oil and commodity
prices. There can be no assurance that economic and political instability, both domestically and internationally (for example,
resulting from the Russia-Ukraine or Middle East conflicts, changes in the creditworthiness of the U.S. or any government,
changes to economic or trade policies, sanctions, tariffs or participation in trade agreements or economic and political unions)
will not adversely affect our results of operations, cash flows or financial position in the future.

Our global operations expose us to political, economic, legal, currency and other risks.

We operate a network of nearly 800 branches, warehouses and sales offices with operations in approximately 50 countries.
Approximately one-third of our employee population are non-U.S. employees. We derive approximately 26% of our revenues
from sales outside of the U.S. As a result, we are subject to additional risks associated with owning and operating businesses in
these foreign markets and jurisdictions.

Operating in the global marketplace exposes us to a number of risks including:

•

•

•

•

geopolitical and security issues, including armed conflict and civil or military unrest (such as the evolving Russia-
Ukraine and Middle East conflicts), political instability, terrorist activity and human rights concerns;

natural disasters (including as a result of climate change) and public health crises (including pandemics such as COVID-
19), and other catastrophic events;

global supply chain disruptions and large-scale outages or inefficient provision of services from utilities, transportation,
data hosting, or telecommunications providers;

abrupt changes in government policies, laws, regulations or treaties, including imposition of export, import, or doing-
business regulations, trade sanctions, embargoes or other trade restrictions (such as sanctions and other restrictions

13

imposed against Russia in response to the Russia-Ukraine conflict, as well as those against China to mitigate the potential
U.S. national security concerns related to critical infrastructure and technology);

•
•
•

tax or tariff increases;

government restrictions on, or nationalization of, our operations in any country;

changes in labor conditions and difficulties in staffing and managing international operations, including logistical and
communication challenges;

challenges in protecting our IP rights in certain countries;

• monetary policy of the countries where we operate and related currency exchange rate fluctuations;
•
•
•
•

local business and cultural factors that differ from our current standards and practices;

other social, political and economic instability, including recessions and other economic crises in other regions.

continuing uncertainty regarding social, political, immigration, and tax and trade policies in the U.S. and abroad; and

In response to the Russia-Ukraine conflict, the United States, the European Union and other governments throughout the
world imposed broad economic sanctions and other restrictions against Russia and Russian interests. In October 2023, Hamas
militants attacked Israel, leading Israel to respond with air strikes and a major ground operation in Gaza. To the extent the Russia-
Ukraine and Middle East conflicts escalate or are further prolonged, it may have the effect of heightening many of the risks
described above or elsewhere in these risk factors.

Our business and operations have been and may continue to be adversely affected by the COVID-19 pandemic, and the
duration and extent to which COVID variants or other pandemics will affect our business, financial condition, results of
operations, cash flows, liquidity, and stock price remains uncertain.

The global COVID-19 pandemic created significant disruption to the broader economies, financial markets, workforces,
business environment and supply chains, as well as to our suppliers and customers. Beginning in 2020, the pandemic caused
significant disruptions to our business due to, among other things, disruptions to our suppliers and global supply chain, labor
shortages, transportation disruptions, travel restrictions, the impact on our customers and their demand for our products and
services and ability to pay for them, as well as temporary closures of facilities. Some of the actions we have taken in response to
the COVID-19 pandemic, such as implementing remote working arrangements, may also create increased vulnerability to
cybersecurity incidents and other risks. Remote working arrangements and the decrease in commercial office occupancy rates
may adversely affect sectors of the economy or the bank or financial markets, which may affect our customers or lenders, or may
increase market volatility. The full extent to which new COVID variants or new pandemics may impact our business, results of
operations, and financial condition depends on many evolving factors and future developments for which there remains significant
uncertainty; the availability, effectiveness and public acceptance of treatments or vaccines (including boosters); the impact of the
imposition of governmental actions; and the impact of pandemics on the global supply chain and the broader economy and capital
markets, as well as the matters noted above. In addition, COVID variants and other pandemics may adversely affect many of our
suppliers’ and customers' businesses and operations, including the ability of our suppliers to manufacture or obtain the products
we sell or to meet delivery requirements and commitments, and our customers’ demand for our products and services and the
ability to pay for them, all of which could adversely affect our sales and results of operations.

We may not be able to appropriately respond to or manage the impact of these events, and any of these events could materially

adversely affect our business, financial condition, results of operations, cash flows, liquidity and stock price.

We are subject to various laws and regulations globally and any failure to comply could adversely affect our business.

We are subject to a broad range of laws and regulations in the jurisdictions where we operate globally, including, among
others, those relating to data privacy and protection, cyber security, import and export requirements, anti-bribery and corruption,
product compliance, supplier regulations regarding the sources of supplies or products, sustainability and environmental
protection, health and safety requirements, intellectual property, foreign exchange controls and cash repatriation restrictions, labor
and employment, human rights, e-commerce, advertising and marketing, anti-competition, artificial intelligence and tax.
Compliance with these domestic and foreign laws, regulations and requirements may be burdensome, increasing our cost of
compliance and doing business. In addition, as a supplier to federal, state, and local government agencies, we must comply with
certain laws and regulations relating specifically to our governmental contracts. Although we have implemented policies and
procedures designed to facilitate compliance with various laws, we cannot assure you that our employees, contractors, or agents

14

will not violate such laws and regulations, or our policies and procedures. Any such violations could result in the imposition of
fines and penalties, damage to our reputation, and, in the case of laws and regulations relating to governmental contracts, the loss
of those contracts.

Fluctuations in foreign currency have an effect on our results from operations.

The results of certain of our foreign operations are reported in the local currency and then translated into U.S. dollars at the
applicable exchange rates for inclusion in our consolidated financial statements. The exchange rates between some of these
currencies and the U.S. dollar have fluctuated significantly in recent years (particularly the Argentine Peso and the Egyptian
Pound), and may continue to do so in the future. We may incur losses related to foreign currency fluctuations, and foreign
exchange controls may prevent us from repatriating cash in countries outside the U.S. In addition, because our financial statements
are stated in U.S. dollars, such fluctuations may also affect the comparability of our results between financial periods.

Risks Related to Our Strategic Initiatives and Acquisitions

Expansion into new business activities, industries, product lines or geographic areas could subject the Company to
increased costs and risks and may not achieve the intended results.

We have invested significantly in expanding our digital solutions and digitalization initiatives, including but not limited to, e-
commerce capabilities, enhancing the online customer experience, software as a service (SaaS), internet of things (IoT)
technology, electrification, automation, grid modernization, security, smart building technology and advisory services. If our
efforts to expand our digital and service capabilities are not successful, we may not realize the return on our investments as
anticipated, or our operating results could be adversely affected by slower than expected sales growth or additional costs.
Furthermore, engaging in or significantly expanding business activities in product sourcing, sales and services could subject the
Company to unexpected costs and risks. Such activities could subject us to increased operating costs, product liability, regulatory
requirements and reputational risks. Our expansion into new and existing markets, including manufacturing related or regulated
businesses, may present competitive distribution and regulatory challenges that differ from current ones. We may be less familiar
with the target customers and may face different or additional risks, as well as increased or unexpected costs, compared to existing
operations. Growth into new markets may also bring us into direct competition with companies with whom we have little or no
past experience as competitors. To the extent we are reliant upon expansion into new geographic, industry and product markets
for growth and do not meet the new challenges posed by such expansion, our future sales growth could be negatively impacted,
our operating costs could increase, and our business operations and financial results could be negatively affected.

Our strategic and operational initiatives, including our digital transformation initiatives, are subject to various risks and
uncertainties, and we may be unable to implement the initiatives successfully.

We are engaged in a number of strategic and operational initiatives, including our digital transformation initiatives, designed
to optimize costs and improve operational efficiency. Our ability to successfully execute these initiatives is subject to various
risks and uncertainties and there can be no assurance regarding the timing of or extent to which we will realize the anticipated
benefits, if at all.

We may not be able to fully realize the anticipated benefits and cost savings of mergers and acquisitions.

In 2020, we completed our merger with Anixter and in 2022, we completed the acquisition of Rahi Systems. We consider and
may pursue other acquisitions on an on-going basis. The success of these and future acquisitions, including anticipated benefits
and cost savings, depends on the successful combination and integration of the companies’ businesses. It is possible that the
integration process of an acquired business could result in the loss of key employees, higher than expected costs, diversion of
management attention, the disruption of either company’s ongoing legacy businesses or inconsistencies in standards, controls,
procedures and policies that adversely affect the Company’s ability to maintain relationships with customers, suppliers and
employees or to achieve the anticipated benefits and cost savings of the transaction.

We have incurred, and expect to continue to incur, a number of non-recurring costs associated with recent acquisitions and
related integration activities. This includes transaction fees and expenses related to formulating and implementing integration
plans, including facilities, systems consolidation and employment-related costs. We continue to assess the magnitude of these
costs, and additional unanticipated costs may be incurred in the integration of the acquired companies’ businesses. Although we

15

anticipate that the elimination of duplicative costs, as well as the realization of other efficiencies related to the integration of the
businesses, should allow us to offset integration-related costs over time, this net benefit may not be achieved in the near term, or
at all.

If we experience difficulties with the integration process, the anticipated benefits of recent or future mergers or acquisitions
may not be realized or may take longer to realize than expected. These integration matters could have an adverse effect on us for
an undetermined period.

Any future acquisitions that we may undertake will involve a number of inherent risks, any of which could cause us not
to realize the anticipated benefits.

We have expanded our operations through organic growth and selected acquisitions of businesses and assets, such as our
acquisition of Rahi Systems in 2022, and may seek to do so in the future. Acquisitions involve various inherent risks, including:
problems that could arise from the integration of the acquired business; uncertainties in assessing the value, strengths, weaknesses,
contingent and other liabilities and potential profitability of acquisition candidates; the potential loss of key employees of an
acquired business; the ability to achieve identified operating and financial synergies anticipated to result from an acquisition or
other transaction; unanticipated changes in business, industry or general economic conditions that affect the assumptions
underlying the acquisition or other transaction rationale; and expansion into new countries or geographic markets where we may
be less familiar with operating requirements, target customers and regulatory compliance. Any one or more of these factors could
increase our costs or cause us not to realize the benefits anticipated to result from the acquisition of a business or assets.

Risks Related to Our Information Systems and Technology and Intellectual Property

Any significant disruption or failure of our information systems could lead to interruptions in our operations, which may
materially adversely affect our business operations, financial condition, and results of operations.

We operate a number of facilities and we coordinate company activities, including information technology systems,
administrative services, and similar systems, through our headquarters operations. We rely on the proper functioning and
availability of our information systems to successfully operate our business, including managing inventory, processing customer
orders, shipping products, providing service to customers, maintaining customer and supplier information, and compiling
financial results. Our operations depend on our ability to maintain existing systems and implement new technology, which
includes allocating sufficient resources to upgrade our information technology systems, and to protect our equipment and the
information stored in our databases against both man-made and natural disasters (including those as a result of climate change),
as well as power losses, computer and telecommunications failures, technological breakdowns, unauthorized intrusions, cyber-
attacks, and other events. Further, many of the products and services we provide to customers rely on information technology to
transmit and store data in Company, cloud-based and third-party systems. Even where Company-managed information systems
remain fully operational, a failure by a third-party's systems or procedures could have negative effects on our operations. Any
significant or prolonged unavailability or failure of critical information systems could materially impair our ability to maintain
proper levels of inventories, process orders, meet the demands of our customers and suppliers in a timely manner, and other
harmful effects on our business operations, which could negatively affect our financial results.

We may not be able to realize the anticipated benefits and cost savings of our digital transformation initiatives or
enhancing existing, and deploying new, technology, digital products and information systems in our operations.

We are executing our digital transformation strategy and seek to continually enhance existing and deploy new technology,
digital products and information systems as a part of our technology-enablement strategy. Such changes could fail to realize
anticipated benefits, create new liability or disrupt our existing information systems or other aspects of our operations.
Conversions to new information technology systems may result in cost overruns, delays or business interruptions. Efforts to align
portions of our business on common enterprise platforms, systems and processes could result in unforeseen interruptions,
increased costs or liability, and other negative effects. Sales enablement initiatives that improve data analytics and automate,
optimize, digitize or outsource tasks could result in unforeseen consequences, including our ability to process orders, receive and
ship products, maintain inventories, collect accounts receivable and pay expenses, therefore impacting our results of operations.
Additionally, exploring and deploying use cases for artificial intelligence, generative artificial intelligence and large language
models to empower our employees and streamline our operations may introduce new risks such as biased output, inaccurate
output, security vulnerabilities and increased stakeholder or regulatory scrutiny, which could impact the integrity of our business

16

processes, expose us to litigation or fines, or erode the trust of our stakeholders. If our technology systems are disrupted, become
obsolete or do not adequately support our strategic, operational or compliance needs, or if the controls placed over the use of new
and existing technology prove inadequate, it could result in a competitive disadvantage or adversely affect our business
operations, reputation or financial condition.

Our business depends on cloud-based services operated by various third-party service providers, and any disruption in
or interference with our use of these services could have adverse effects on our business, operational results, and financial
condition.

We rely heavily on cloud-based services, systems and networks operated or supported by various third-party service providers
to operate critical business systems, to process, transmit and store information, and to conduct our business activities and
transactions with employees, customers, vendors and other third parties. Our utilization of these cloud-based services and systems
will increase as we continue to implement our digital transformation initiatives. This reliance makes us vulnerable to service
malfunctions, interruptions, or outages caused by technical failures, natural disasters, or cybersecurity and other security breaches.
Such disruptions can adversely impact our operations as well as our ability to serve our customers, diminishing customer
satisfaction and potentially damaging our business reputation. Moreover, we have limited control over these third-party providers
and the need to manage multiple external service providers increases operational complexity. If any of our cloud service providers
do not perform effectively, or if we fail to adequately monitor their performance (including their failure to comply with service-
level agreements or regulatory requirements), we could incur additional expenses to remediate errors made by such providers, or
could be subject to litigation, claims or regulatory investigations and actions. In addition, our third-party service providers might
unilaterally discontinue or limit our access to services, increase pricing, alter service terms, or seek to terminate their contractual
relationship with us, negatively affecting our operations. The failure to maintain our relationships or renew our contracts with
cloud service providers on commercially favorable terms could pose serious challenges to our business. Although we could seek
alternative providers, we may incur significant costs in connection with the transition or experience operational disruptions. In
light of these factors, the cumulative impact of such issues, whether service disruptions, regulatory challenges, litigation or
remediation costs, reputational harm, or cost escalations, could pose substantial risks to our operational efficiency and our ability
to meet our strategic objectives, thereby potentially leading to material adverse effects on our overall business performance and
financial results.

We may experience a failure in or breach of our information security systems, or those of our third-party product suppliers
or service providers, as a result of cyber-attacks or information security breaches.

Because we rely heavily on information technology both in serving our customers and in our enterprise infrastructure in order
to achieve our objectives, we may be vulnerable to damage or intrusion from a variety of cyber-attacks, including computer
viruses, ransomware, worms or other malicious software programs that seek to gain to access our systems and networks, or those
of our third-party service providers. Additionally, third parties may fraudulently attempt to induce employees or customers into
disclosing sensitive information such as user names, passwords and other information in order to gain access to our customers’
data or our data, including our intellectual property and other confidential business information, or our information technology
systems. Information technology security threats to our systems, networks and data have dramatically increased in recent years
due to the proliferation of new technologies and the increased sophistication and activities of perpetrators. We have seen, and will
continue to see, industry-wide vulnerabilities, which could cause widespread disruptions to our or other parties' systems. In
addition, the risk of retaliatory cyber-attacks has increased as a result of geopolitical conflicts, including the Middle East and
Russia-Ukraine conflicts. These threats and vulnerabilities pose a risk to the security of our systems and networks and the
confidentiality, availability and integrity of our proprietary and confidential information.

Although we actively manage information technology security risks within our control and continually seek to enhance our
controls and processes designed to protect our systems, computers, networks and data, there can be no assurance that such actions
will be sufficient to mitigate all potential risks. As cyber threats continue to evolve, we may be required to expend additional
resources to continue to enhance our information security measures and remediate any information security vulnerabilities.
Despite the precautions we take to mitigate the risks of such events, an attack on our enterprise information technology system,
or those of third parties with which we do business, could result in theft or unauthorized disclosure of our proprietary or
confidential information or a breach of confidential customer, supplier or employee information. Such events could impair our
ability to conduct our operations or cause disruptions to our supply chain, which could have an adverse impact on revenue and

17

harm our reputation. Additionally, such an event could expose us to regulatory sanctions or penalties, lawsuits or other legal
action or cause us to incur legal liabilities and costs, which could be significant, in order to address and remediate the effects of
an attack and related security concerns. The insurance coverage we maintain may be inadequate to cover claims or liabilities
relating to a cybersecurity attack.

In addition, the legal and regulatory environment surrounding information security and privacy in the U.S. and international
jurisdictions is constantly evolving and additional laws and regulations regarding artificial intelligence are being considered and
implemented. Violation or non-compliance with any of these laws or regulations, contractual requirements relating to data security
and privacy, or our own privacy and security policies, either intentionally or unintentionally, or through the acts of intermediaries
could have a material adverse effect on our brand, reputation, business, financial condition and results of operations, as well as
subject us to significant fines, litigation losses, third-party damages and other liabilities.

We could incur significant and unexpected costs in our efforts to successfully avoid, manage, defend and litigate
intellectual property matters.

We rely on certain trademarks, patents, trade secrets, copyrights, and other intellectual property, and are continuing to develop
intellectual property in connection with the digital transformation of our business and operations. We cannot be certain that others
have not or will not infringe upon our intellectual property, or that in-house or third-party solutions, including the output of large
language models, will not potentially infringe upon the intellectual property rights of others. Intellectual property litigation could
be costly and time consuming, and we could incur significant legal expenses pursuing these claims against others. From time to
time, we may receive notices from third parties that allege intellectual property infringement. Any dispute or litigation involving
intellectual property could be costly and time-consuming due to its complexity and uncertainty. Our intellectual property portfolio
may not be useful in asserting a counterclaim or negotiating a license in response to aclai m of infringement or misappropriation.
In addition, as a result of such claims, we may lose our rights to utilize critical technology or may be required to pay substantial
damages or license fees with respect to infringed rights or be required to redesign or restructure our products or services at a
substantial cost, any of which could negatively impact our operating results.

Risks Related to Our Industry, Markets and Business Operations

Loss of key suppliers could decrease sales, profit margins and earnings.

Most of our agreements with suppliers are terminable by either party on 60 days' notice or less for any reason. We currently
source products from thousands of suppliers. However, our 10 largest suppliers in 2023 accounted for approximately 27% of our
purchases by dollar volume for the period. The loss of, or a substantial decrease in the availability of, products from any of these
suppliers, asuppl ier's change in sales strategy to reduce its reliance on distribution channels, the loss of key preferred supplier
agreements, or disruptions in a key supplier's operations could have ama terial adverse effect on our business. Although we believe
our relationships with our key suppliers are good, they could change their strategies as aresult of a change in control, expansion
of their direct sales force, changes in the marketplace or other factors beyond our control, including a key supplier becoming
financially distressed which could materially affect our supply chain, increase our costs or disrupt our ability to deliver products
to our customers in atim ely and cost-effective manner.

We have been and may continue to be adversely affected by supply chain challenges, including product shortages, delays
and price increases, which could decrease sales, profit margins and earnings.

Supply interruptions could arise from shortages of raw materials, effects of economic, political or financial market conditions
on a supplier's operations, labor disputes or weather conditions affecting products or shipments, transportation disruptions, natural
disasters, outbreaks of disease, information system disruptions or other reasons beyond our control.

Since the start of the COVID-19 pandemic, our industry and the broader economy experienced supply chain challenges,
including shortages in raw materials and components, labor shortages and transportation constraints, leading to product delays,
backlogged orders, increased transportation cost and longer lead times. In 2023, we saw varying degrees of supply chain
improvements, with manufacturers adjusting their production footprints through diversification, reshoring, nearshoring and other
strategies designed at mitigating supply chain risks, alongside continued volatility in the availability of certain raw materials,
components and products. While we continue to aggressively and proactively manage supply chain developments, we have
experienced, and may continue to experience, some delays in receiving products from our suppliers. We cannot be certain that

18

particular products will be available to us, or available in quantities sufficient to meet customer demand. Any product shortages
and delays could impair our ability to make scheduled deliveries to our customers in a timely manner and cause us to be at a
competitive disadvantage.

Product shortages and delays in deliveries, along with other factors such as price inflation and higher transportation costs,
could result in price increases from our suppliers. We may be unable to pass these price increases on to our customers, which
could erode our profit margins. Supply chain constraints, increased product costs and inflationary pressures could continue or
escalate in the future, for example if the Russia-Ukraine, Middle East and other geopolitical conflicts escalate or are further
prolonged, which would have an adverse impact on our business and results of operations.

We conducted a climate risk assessment in 2022 aligned to the Task Force on Climate-Related Financial Disclosures (“TCFD”)
to determine the materiality of climate-related risks to our business. The effects of global climate change could increase the
frequency and intensity of natural disasters or extreme weather conditions, such as tropical storms, severe winter weather, drought,
flooding, heat waves, wildfires and rising sea levels, which could cause or exacerbate supply chain interruptions. For example,
some of our customers’, suppliers’ and our operations are in water-stressed regions or areas prone to flooding or wildfires, and
our facilities depend on power grids that may be impacted by severe weather. With global climate change increasing the frequency
and severity of such events, it is possible that we could face greater climate-related risks in the future, which could result in
temporary or prolonged interruptions in operations, increase our operating costs and capital expenditures, and reduce revenue and
profitability.

The profitability of our business is also dependent upon the efficiency of our supply chain. An inefficient or ineffective supply
chain strategy or operations could increase operational costs, decrease sales, profit margins and earnings, which could adversely
affect our business.

Product cost fluctuations could decrease sales, profit margins and earnings.

Some of our products, such as wire and conduit, are commodity price based products and may be subject to significant price
fluctuations which are beyond our control. Recently, we have experienced fluctuations in commodity costs, as well as in the costs
of raw materials and components generally, as a result of global economic conditions and other trends. Increases in these costs
could erode our profit margin and negatively impact our results of operations to the extent we are unable to successfully mitigate
and offset the impact of these costs. While increases in the cost of energy or products could have adverse effects, decreases in
those costs, particularly if severe, could also adversely impact us by creating deflation in selling prices, which could cause our
profit margin to deteriorate. Fluctuations in energy or raw materials costs can also adversely affect our customers.

Challenges in managing working capital and inventory in response to evolving customer demands, supply chain
disruptions, and market fluctuations could significantly impact our cash flow, profit margins, and overall business
performance.

Our ability to manage our working capital, including our inventory position, as well as efficiently managing our receivables
and payables, is important to the successful operation of our business and resulting cash flow, and if we do not manage our
working capital adequately, it can affect our cash flows, results of operations, and financial performance. Evolving customer
demand patterns and supply chain disruptions may require rapid adjustments in inventory management strategies. Additionally,
our business may continue to adjust the proportion of direct ship sales versus stock sales. An increase in direct ship sales could
negatively impact product margins and other financial metrics, while an increase in stock sales could negatively impact inventory
carrying costs and free cash flow, either of which could have a negative impact on our business and financial performance.
Furthermore, fluctuations in foreign exchange rates, particularly in international markets, combined with varying interest rates,
can significantly affect the cost of inventory, the value of receivables, and the cost of debt, thereby impacting our working capital
efficiency, ability to fund growth initiatives and overall financial stability.

A decline in project volume could adversely affect our sales and earnings.

While much of our sales and earnings are generated by comparatively smaller and more frequent orders, the fulfillment of
large orders for large capital projects generates significant sales and earnings. Accordingly, our results of operations can fluctuate
depending on whether and when large project awards occur and the commencement and progress of work under large contracts
already awarded.

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The awarding and timing of projects is unpredictable and depends on many factors outside of our control. Project awards often
involve complex and lengthy negotiations and competitive bidding processes. These processes can be impacted by a wide range
of factors including a customer’s decision to not proceed with a project or its inability to obtain necessary governmental approvals
or financing, commodity prices, and overall market and economic conditions. Slow macro-economic growth rates, difficult credit
market conditions for our customers, weak demand for our customers’ products or other customer spending constraints can result
in project delays or cancellations. In addition, some our competitors may also be more willing to take greater or unusual risks or
include terms and conditions in a contract that we might not deem acceptable.

We have risks associated with the sale of nonconforming products and services.

Historically, we have experienced a small number of cases in which our vendors supplied us with products that did not conform
to the agreed upon specifications without our knowledge. Additionally, we may inadvertently sell a product not suitable for a
customer’s application. We address this risk through our quality control processes, by seeking to limit liability and our warranty
in our customer contracts, and by obtaining indemnification rights from vendors. However, there can be no assurance that we will
be able to include protective provisions in all of our contracts or that vendors will have the financial capability to fulfill their
indemnification obligations to us.

Disruptions to our logistics capability, or our failure to effectively manage supply chain logistics during periods of
disruption, may have an adverse impact on our operations.

Our global logistics services are operated through distribution centers around the world. An interruption of operations at any
of our distribution centers could have a material adverse effect on the operations of branches served by the affected distribution
center. Such disaster related risks and effects are not predictable with certainty and, although they typically can be mitigated, they
cannot be eliminated. We seek to mitigate our exposures to disaster events in a number of ways. For example, where feasible, we
design the configuration of our facilities to reduce the consequences of disasters. We also maintain insurance for our facilities
against casualties, and we evaluate our risks and develop contingency plans for dealing with them. Disruptions to our logistics
capability or supply chain may have an adverse impact on ability to serve our customers, based on factors such as a lack of depth
and breadth in the suppliers we do business with, failure to utilize and optimize warehouse space availability in key markets,
failure to achieve network optimization and last mile solutions, and failure to improve our supply chain resiliency through
technological improvements.

Although we have reviewed and analyzed a broad range of risks applicable to our business, the risks that most significantly
affect us may not be those that we have concluded are most likely to occur. Furthermore, although our reviews have led to more
systematic business continuity and contingency planning, our plans are in varying stages of development and execution, such that
they may not be adequate at the time of occurrence for the magnitude of any particular disaster event that we may encounter.

We also depend on transportation service providers for the delivery of products to our customers. Any significant interruption
or disruption in service at one or more of our distribution centers due to severe weather or natural disasters (including as a result
of climate change), information technology upgrades, operating issues, disruptions to our transportation network, public heath
crises, pandemics, or other unanticipated events, could impair our ability to obtain or deliver inventory in ati mely manner,
increase transportation costs, cause cancellations or delays in shipments to customers or otherwise disrupt our normal business
operations.

Our reliance on third-party service providers for outsourced functions could negatively impact our reputation, operations
or financial results.

We engage third-party suppliers for various outsourced services. This approach aims to enhance efficiency and generate cost
savings. However, it also increases our operational complexity and reduces our direct control over these functions. Dependence
on these providers subjects us to risks such as inadequate service levels, untimely support, non-compliance with legal
requirements and industry standards, and potential disruptions if these relationships are terminated or not renewed. These factors
could lead to missed deadlines, reputational harm, or challenges in adapting to regulatory or market changes. In the event of
substandard performance by our service providers, or if we are unable to promptly replace them with competent alternatives, our
business, reputation, and financial condition could be adversely affected. We may consider outsourcing additional functions in
the future, further heightening these risks.

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An increase in competition could decrease sales, profit margins, and earnings.

We operate in a highly competitive industry and compete directly with global, national, regional and local providers of like
products and services. Some of our existing competitors have, and new market entrants may have, greater resources than us.
Competition is generally based on product line breadth, product availability, service capabilities and price. Other sources of
competition are buying groups formed by smaller distributors to increase purchasing power and provide some cooperative
marketing capability, as well as e-commerce companies. There may be new market entrants with non-traditional business and
customer service models, resulting in increased competition and changing industry dynamics.

Existing or future competitors may seek to gain or retain market share by reducing prices, and we may be required to lower
our prices or may lose business, which could adversely affect our financial results. We may be subject to supplier price increases
while not being able to increase prices to customers. Also, to the extent that we do not meet changing customer preferences or
demands, or to the extent that one or more of our competitors becomes more successful with private label products, on-line
offerings or otherwise, our ability to attract and retain customers could be materially adversely affected. Existing or future
competitors also may seek to compete with us for acquisitions, which could have the effect of increasing the price and reducing
the number of suitable acquisitions. These factors, in addition to competitive pressures resulting from the fragmented nature of
our industry, could affect our sales, profit margins and earnings.

Our continued success may depend on our ability to execute environmental, social and governance (“ESG”) programs as
planned and may impact our reputation and operating costs.

Customers, suppliers, employees, community partners, shareholders and regulatory agencies in various jurisdictions globally
are increasingly requesting disclosure and action relating to ESG objectives and performance. We commit time and resources to
ESG efforts, consistent with our corporate values and in ways designed to strengthen our business, including programs focused
on sustainability, corporate responsibility, human rights, ethics, diversity and inclusion. Our failure to execute our ESG programs
and objectives as planned, or in accordance with the evolving expectations of various stakeholders or regulators in the United
States, Europe and globally, could adversely affect the Company’s reputation, business and financial performance. For example,
an isolated incident of non-compliance, underperformance or inaccuracy in reporting, the aggregate effect of individually
insignificant incidents or the failures of suppliers in our supply chain, can erode trust and confidence in the Company and our
brand and adversely affect our business and financial performance, particularly if such events result in adverse publicity,
governmental investigations or litigation.

Simultaneously, increased expectations and regulations around ESG reporting and performance may result in higher operating
expenses, capital expenditures and costs of goods sold (including those related to deploying low-carbon technologies, expanding
our electric vehicle fleet, strengthening ESG monitoring and reporting programs, calculating and disclosing different scopes of
greenhouse gas emissions in the manner and timeline expected by regulators and other stakeholders, enhancing supply chain
transparency programs, transitioning suppliers due to their ESG programs, other costs to pursue our ESG goals or supplier price
increases as manufacturers and services providers accommodate their own ESG-related expenses), which could reduce our
profitability and cash flow. Additionally, certain customers may set net-zero emissions targets, and we could face pressure from
such customers to further reduce emissions to assist them in the achievement of such targets or risk the loss of their business,
which could result in increased costs or decreased revenue and may adversely impact financial performance.

Risks Related to Tax Matters

Changes in tax laws or challenges to the Company's tax positions by taxing authorities could adversely impact the
Company's results of operations and financial condition.

We are subject to taxes in jurisdictions in which we do business, including but not limited to taxes imposed on our income,
receipts, stockholders' equity, property, sales, purchases and payroll. As a result, the tax expense we incur can be adversely
affected by changes in tax law. We cannot anticipate these changes in tax law, which can cause unexpected volatility in our results
of operations. Changes in the tax law at the federal and state/provincial levels, in particular in the U.S. and Canada, jurisdictions
which account for most of our income before taxes, can have a material adverse effect on our results of operations.

The Organization for Economic Cooperation and Development (the “OECD”) issued proposed rules to address the tax
challenges arising from the digitalization of the global economy. The so-called two-pillar solution is intended to implement rules

21

addressing 1) nexus and profit allocation in cases where businesses profit from markets in other countries while paying little to
no tax in those countries under the current physical presence-based global tax system, 2) standardized intercompany pricing for
routine marketing and distribution activities, and 3) a global minimum tax as a catch-all to address residual base erosion and
profit shifting. Each of the OECD’s member states must enact domestic legislation implementing the OECD’s proposed rules for
them to become law, which a number of jurisdictions either did during 2023 or are expected to do in 2024. The Company is
evaluating the impact of the guidance released by the OECD and proposed and enacted domestic legislation in relevant member
states, as well as information released by the Financial Accounting Standards Board, to determine the effect on the Company.
While a comprehensive analysis of the proposed and enacted domestic legislation and OECD proposals is still being conducted,
the Company’s preliminary conclusions are that the current proposed and enacted rules are not likely to have a material impact
on the Company’s worldwide tax expense but are likely to create significant compliance obligations.

Finally, the tax laws to which the Company is subject are inherently complex and ambiguous. Therefore, we must interpret
the applicable laws and make subjective judgments about the expected outcome upon challenge by the applicable taxing
authorities. As a result, the impact on our results from operations of the application of enacted tax laws to our facts and
circumstances is sometimes uncertain. If atax a uthority successfully challenges our interpretation and application of the tax law
to our facts and circumstances, there can be no assurance that we can accurately predict the outcome and the taxes ultimately
owed upon effective settlement, which may differ from the tax expense recognized in our Consolidated Statements of Income
and Comprehensive Income and accrued in our Consolidated Balance Sheets. Additionally, if we cannot meet liquidity
requirements in the U.S., we may have to repatriate funds from overseas to meet these liabilities, which would result in additional
income taxes being incurred on the amount repatriated.

Risks Related to Our Indebtedness and Capital Structure

Our outstanding indebtedness requires debt service commitments that could adversely affect our ability to fulfill our
obligations and could limit our growth and impose restrictions on our business, and fluctuations in interest rates could
affect the cost of our indebtedness.

In 2020, we incurred significant additional indebtedness to finance the merger with Anixter. As a result, a substantial portion
of our cash flow from operations must be dedicated to the payment of principal and interest on our indebtedness, thereby reducing
the funds available to us for other purposes. As of December 31, 2023, excluding debt discount and debt issuance costs, we had
$5.4 billion of consolidated indebtedness. We and our subsidiaries may also undertake additional borrowings in the future, subject
to certain limitations contained in the debt instruments governing our indebtedness.

Our debt service obligations impact our ability to operate and grow our business. Our payments of principal and interest on
our indebtedness reduce the amount of funds available to us to invest in operations, future business opportunities, acquisitions,
and other potentially beneficial activities. Our debt service obligations also reduce our flexibility to adjust to changing market
conditions and may increase our vulnerability to adverse economic, political, financial market and industry conditions. A portion
of our indebtedness, including amounts outstanding under our accounts receivable securitization and revolving credit facilities,
bears interest at variable rates. In the future, we may also incur additional indebtedness that bears interest at variable rates. In a
rising interest rate environment, or one in which interest rates may be affected by market disruptions, the interest expense on our
variable rate borrowings will increase. Our ability to service and refinance our indebtedness, make scheduled payments on our
operating leases, fund capital expenditures, acquisitions or other business opportunities, repurchase shares, and pay dividends
will depend in large part on both our future performance and the availability of additional financing in the future, as well as
prevailing interest rates and other market conditions and other factors beyond our control. We cannot assure you that we will be
able to obtain additional financing on terms acceptable to us or at all.

There can be no assurance that our business will continue to generate sufficient cash flows from operations in the future to
service our debt, make necessary capital expenditures, or meet other cash needs. If the financial performance of the Company
does not meet current expectations, then our ability to service or repay our indebtedness may be adversely impacted. If unable to
do so, we may be required to refinance all or a portion of our existing debt, sell assets, or obtain additional financing. If we are
unable to repay indebtedness, lenders having secured obligations could proceed against the collateral securing these obligations.

22

Our debt agreements contain restrictive covenants that may limit our ability to operate our business.

Our credit facilities and our other debt agreements contain various covenants that restrict or limit our ability to, among other

things:

incur additional indebtedness or create liens on assets;

engage in mergers, acquisitions or consolidations;

•
•
• make loans or other investments;
•
•

transfer, lease or dispose of assets outside the ordinary course of business;

pay dividends, repurchase equity interests, make other payments with respect to equity interests, repay or repurchase
subordinated debt; and

•

engage in affiliate transactions.

In addition, certain of these debt agreements contain financial covenants that may require us to maintain certain financial
ratios and other requirements in certain circumstances. As a result of these covenants, our ability to respond to changes in business
and economic conditions and to obtain additional financing, if needed, may be significantly restricted, and we may be prevented
from engaging in transactions or taking advantage of new business opportunities that might otherwise be beneficial to us. Our
ability to comply with these covenants and restrictions may be affected by economic, financial and industry conditions or
regulatory changes beyond our control. Failure to comply with these covenants or restrictions could result in an event of default,
under our revolving lines of credit or the indentures governing certain of our outstanding notes which, if not cured or waived,
could accelerate our repayment obligations. See the Liquidity and Capital Resources section in Item 7, “Management's Discussion
and Analysis” for further details.

General Risk Factors

We are subject to costs and risks associated with global laws and regulations affecting our business, as well as litigation
for product liability or other matters affecting our business.

The global legal and regulatory environment is complex and exposes us to compliance costs and risks, as well as litigation
and other legal proceedings, which could materially affect our operations and financial results. These laws and regulations may
change, sometimes significantly, as a result of political or economic events, and some changes are anticipated to occur in the
future. They include laws and regulations covering taxation, trade, import and export, labor and employment (including wage and
hour), product safety, product labeling, occupational safety and health, data privacy, data protection, intellectual property, artificial
intelligence, and sustainability and environmental matters (including those relating to global climate change and its impact). We
are also subject to securities and exchange laws and regulations and other laws applicable to publicly-traded companies such as
the Foreign Corrupt Practices Act. Furthermore, as a government contractor selling to federal, state and local government entities,
we are also subject to a wide variety of additional laws and regulations. Proposed laws and regulations in these and other areas
could affect the cost of our business operations.

From time to time we are involved in legal proceedings, audits or investigations which may relate to, for example, product
liability, labor and employment (including wage and hour), tax, escheat, import and export compliance, government contracts,
worker health and safety, intellectual property misappropriation or infringement, and general commercial and securities matters.
While we believe the outcome of any pending matter is unlikely to have a material adverse effect on our financial condition or
liquidity, additional legal proceedings may arise in the future and the outcome of these as well as other contingencies could require
us to take actions, which could adversely affect our operations, could diminish our intellectual property portfolio or could require
us to pay substantial amounts of money. Even if we successfully defend against claims, we may incur significant costs that could
adversely affect our results of operations, financial condition and cash flow.

23

We must attract, retain and motivate our employees, and the failure to do so may adversely affect our business.

Our success depends on hiring, retaining and motivating our employees, including executive, managerial, sales, technical,
operations, marketing and support personnel. We may have difficulty locating and hiring qualified personnel. In addition, we may
have difficulty retaining such personnel once hired, and key people may leave and compete against us. The loss of key personnel
or our failure to attract and retain other qualified and experienced personnel could disrupt or adversely affect our business, its
sales and operating results. In addition, our operating results could be adversely affected by increased costs due to increased
competition for employees, higher employee turnover, increasing levels of retirement, the possibility of a shrinking workforce in
various regions globally, which may also result in increased employee benefit or other costs or the loss of significant customer
business, proprietary information, or tacit knowledge, which could negatively impact our operational efficiency, innovation
capabilities, and customer relationships. Furthermore, inadequate talent management and succession planning, along with
potential challenges in adapting to evolving workplace trends and expectations, could hinder our ability to respond to market
changes and maintain a competitive edge, which could lead to decreased productivity, reduced market share, and ultimately, a
decline in financial performance.

Item 1B. Unresolved Staff Comments.

None.

Item 1C. Cybersecurity.

Risk Management and Strategy

Information security and protection of our data is important to Wesco, our customers and suppliers. We take aco mprehensive,
multi-layered approach to securing our data and business systems from attack, compromise or loss. This includes the combination
of leading technologies, physical and organizational safeguards, including a robust suite of security policies and procedures. We
have a dedicated 24 hours per day/seven days per week Cybersecurity Operations team, with a third-party service provider,
monitoring our environment for signs of attack and responding in real-time.

The implementation of a multi-layer and multi-provider portfolio of technologies is designed to deliver overlapping coverage
against today’s cybersecurity threats with a strong defensive and response driven security posture. We evaluate risks, threats,
intelligence feeds and vulnerabilities to adapt, mitigate or respond as appropriate to preserve a secure state. Additionally, Wesco
has aco mprehensive third-party risk management program to evaluate partners prior to onboarding, throughout the life of the
relationship, and through the close out of the relationship. This program is designed to ensure our third-party partners adhere to
Wesco’s security policies and expectations as the threat landscape evolves and the relation between the organization changes.
Wesco’s cybersecurity programs are reviewed as part of our information security management system (“ISMS”) by external,
independent third parties and in 2022, we achieved ISO 27001 certification for our ISMS. We conduct mandatory information
security awareness training for our employees at least annually and enhanced training for specialized personnel. We have
instituted regular attack or malicious activity simulations for employees to enhance awareness and responsiveness to such possible
threats, and we also employ third parties to perform penetration and vulnerability tests.

While we focus on prevention and detection, we have response and recovery plans in place, as well as service agreements and
partner engagements should there be a need for us to respond to an attack. We have adopted a cybersecurity incident response
plan that provides direction and a defined approach for preparing for, identifying and responding to cybersecurity incidents that
may pose apo tential threat to our information systems, networks and data. The plan defines the roles and responsibilities of our
IT and security teams and other functional teams that comprise the cybersecurity incident response team, as well as provides
controls and procedures for timely and accurate reporting of material cybersecurity incidents. Significant cybersecurity incidents
are reviewed by acr oss-functional team to determine whether further escalation is appropriate. Any incident that potentially is,
or may become, material is reported to senior management for materiality and disclosure determinations. We also maintain cyber
liability insurance coverage. While we did not experience any material data breaches in 2023 and no risks from cybersecurity
threats have materially impacted or are reasonably likely to materially impact the Company’s business strategy, operations, or
financial condition, we cannot provide assurance that they will not be materially affected in the future by such risks or any future
material incidents. For more information on our cybersecurity related risks, see Item 1A, “Risk Factors” of this Annual Report
on Form 10-K.

24

Governance

To more effectively prevent, detect and respond to information security threats, we have a dedicated Chief Information
Security Officer (“CISO”) whose team is responsible for leading enterprise-wide information security strategy, policy, standards,
architecture and processes. The CISO, with over 30 years of technology experience, has been in this role with Wesco since 2020,
has ato tal of eight years of experience serving in the role of Chief Information Security Officer, and has twelve years of experience
dedicated to cybersecurity. The CISO reports to our Executive Vice President, Chief Information and Digital Officer (“CIDO”),
who reports directly to our Chief Executive Officer. The CISO and CIDO regularly review cybersecurity matters with our Chief
Executive Officer and other members of our senior management, including cybersecurity risks and threats and the status of our
cybersecurity incident response plan and related processes relating to the prevention, detection, mitigation and remediation of
cybersecurity incidents. As part of its oversight responsibility of cybersecurity risk and the overall enterprise risk management
process, the Audit Committee of our Board of Directors meets at least quarterly with our CISO, CIDO, and other senior leaders
to receive updates on cybersecurity risks and threats (and should they arise, any material incidents), the status of initiatives to
strengthen our information security systems, management's assessments of our security program, and compliance with disclosure
requirements. The Audit Committee and senior management report any findings and recommendations, as appropriate to the full
Board of Directors for consideration. Wesco’s cybersecurity program is regularly evaluated by internal and external experts with
the results of those reviews reported to senior leadership and the Board of Directors. We also actively engage with strategic
partners, industry groups, and intelligence and law enforcement to better understand macro trends and significant risk concerns
to better inform and enhance our cybersecurity policies and procedures.

Item 2. Properties.

We operate a network of approximately 625 branches and warehouse locations that hold inventory, and approximately 140
sales offices, with operations in approximately 50 countries throughout the world. This includes 54 facilities with square footage
between 100,000 and 500,000 that operate as regional distribution centers or large branch locations, of which 42 are located in
the U.S., eight in Canada, two in Europe and two in South America. Approximately 8% of our facilities are owned, and the
remainder are leased.

We also lease our 118,000 square-foot headquarters in Pittsburgh, Pennsylvania. We do not regard the real property associated
with any single facility as material to our operations. We believe our facilities are in good operating condition and are adequate
for their respective uses.

Item 3. Legal Proceedings.

From time to time, a number of lawsuits and claims have been or may be asserted against us relating to the conduct of our
business, including litigation relating to commercial, product and employment matters (including wage and hour). The outcome
of any litigation cannot be predicted with certainty, and some lawsuits may be determined adversely to us. However, management
does not believe that the ultimate outcome of any such pending matters is likely to have amaterial adverse effect on our financial
condition or liquidity, although the resolution in any fiscal period of one or more of these matters may have a material adverse
effect on our results of operations for that period.

Information relating to legal proceedings is disclosed in Note 15, “Commitments and Contingencies” of the Notes to

Consolidated Financial Statements and is incorporated herein by reference.

Item 4. Mine Safety Disclosures.

Not applicable.

25

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity
Securities.

Market, Stockholder, and Dividend Information. Our common stock is listed on the New York Stock Exchange under the 
symbol “WCC”. As of February 16, 2024, there were 50,953,600 shares of common stock outstanding held by approximately 
860 holders of record.

We began paying a quarterly cash dividend on our common stock starting in the first quarter of 2023. During each of the
quarters in the fiscal year ended December 31, 2023, we paid a quarterly cash dividend of $0.375 per common share to our
shareholders. The payment of dividends is within the discretion of our Board of Directors and any decision to pay dividends in
the future, and the amount of any such dividend, will depend on an evaluation of a number of factors, including our financial
condition, earnings, capital requirements, debt service obligations, restrictive covenants contained in our debt agreements, and
other factors deemed relevant by our Board of Directors.

As disclosed in Note 9, “Debt” of our Notes to Consolidated Financial Statements, the terms of the Revolving Credit Facility,
as well as the indentures governing the 7.125% Senior Notes due 2025 and 7.250% Senior Notes due 2028 contain various
restrictive covenants that limit the amount of dividends and common stock repurchases that can be made. We were in compliance
with these conditions in 2023 and expect to be in 2024.

Issuer Purchases of Equity Securities.

The following table sets forth all issuer purchases of common stock during the three months ended December 31, 2023:

Period
October 1, 2023 - October 31, 2023

November 1, 2023 - November 30, 2023

December 1, 2023 - December 31, 2023

Total

Total Number
of Shares
Purchased(1)

Average
Price Paid
Per Share

Total Number of Shares
Purchased as Part of
Publicly Announced
Plans or Programs(2)

Approximate Dollar Value
of Shares That May Yet be
Purchased Under the Plans
or Programs(2)
(In millions)

57 $

178,886 $

1,325 $

180,268 $

143.52

139.75

174.90

140.01

— $

178,886 $

— $

178,886

938.9

913.9

913.9

(1) There were 1,382 shares purchased during the quarterly period ended December 31, 2023 that were not part of the publicly announced share
repurchase program. These shares were surrendered by stock-based compensation plan participants to satisfy tax withholding obligations
arising from the exercise of stock-settled stock appreciation rights, and vesting of restricted stock units and performance-based awards.

(2) On June 1, 2022, Wesco announced that its Board of Directors authorized, on May 31, 2022, the repurchase of up to $1 billion of the
Company's common stock and Series A Preferred Stock. The share repurchase authorization has no expiration date and may be modified,
suspended, or terminated at any time without prior notice. During the three months ended December 31, 2023, the Company entered into
spot repurchase transactions through a broker to purchase 178,886 shares of its common stock in the open market for cash totaling
$25.0 million. Wesco funded the repurchases with available cash and borrowings under its revolving credit facility.

26

Company Performance. The following stock price performance graph illustrates the five-year cumulative total return on an
investment in Wesco International, a 2023 Performance Peer Group, and the Russell 2000 Index. The graph covers the period
from December 31, 2018 to December 31, 2023, and assumes that the value for each investment was $100 on December 31, 2018,
and that all dividends were reinvested.

e
u

l
a
V

t
n
e
m

t
s
e
v
n
I

e
v
i
t
a
l
u
m
u
C

)
0
0
1
$
x
e
d
n
I
(

$400

$350

$300

$250

$200

$150

$100

$50

$0

Wesco Intl Inc.
Performance Peer
Group
Russell 2000

Wesco International, Inc. - Cumulative Total Shareholder Return

2018
$100.00

$100.00$133.5

$100.00$125.5

2019
$123.73

6$164.0

2$150.5

2020
$163.54

4

7

2021
$274.15

2022
$260.83

2023
$365.66

$226.82$219.7

2$306.99

$172.89

$137.55$160.84

2023 Performance Peer Group:
Applied Industrial Technologies, Inc.
Arrow Electronics, Inc.
Avnet, Inc.
Barnes Group Inc.
Eaton Corporation Plc

Fastenal Company
Genuine Parts Company
Hubbell, Inc.
MRC Global, Inc.
MSC Industrial Direct Co., Inc.

Rexel SA
Rockwell Automation, Inc.
W.W. Grainger, Inc.

Item 6. [Reserved]

Not applicable.

27

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion should be read in conjunction with the audited consolidated financial statements and notes thereto
included in Item 8 of this Annual Report on Form 10-K. The matters discussed herein may contain forward-looking statements
that are subject to certain risks and uncertainties that could cause actual results to differ materially from expectations. Certain
of these risks are set forth in Item 1A of this Annual Report on Form 10-K. In this Item 7, “Wesco” refers to WESCO International,
Inc., and its subsidiaries and its predecessors unless the context otherwise requires. References to “we,” “us,” “our” and the
“Company” refer to Wesco and its subsidiaries.

In addition to the results provided in accordance with accounting principles generally accepted in the United States of America
(“U.S. GAAP”), our discussion and analysis of financial condition and results of operations includes certain non-GAAP financial
measures, which are defined further below. These financial measures include organic sales growth, earnings before interest, taxes,
depreciation and amortization (“EBITDA”), adjusted EBITDA, adjusted EBITDA margin, financial leverage, adjusted selling,
general and administrative expenses, adjusted income from operations, adjusted other non-operating expense (income), adjusted
provision for income taxes, adjusted income before income taxes, adjusted net income, adjusted net income attributable to
WESCO International, Inc., adjusted net income attributable to common stockholders, and adjusted earnings per diluted share.
We believe that these non-GAAP measures are helpful to users of our financial statements as they provide a better understanding
of our financial condition and results of operations on a comparable basis. Additionally, certain non-GAAP measures either focus
on or exclude items impacting comparability of results, allowing users to more easily compare our financial performance from
period to period. Management uses certain non-GAAP financial measures in its evaluation of the performance of the Company's
operating segments and in the determination of incentive compensation. Management does not use these non-GAAP financial
measures for any purpose other than the reasons stated above.

In the first quarter of the fiscal year ended December 31, 2023, we changed our presentation in tables from thousands to
millions. Certain amounts as of and for the year ended December 31, 2022 in Management’s Discussion and Analysis of Financial
Condition and Results of Operations may not foot or recalculate due to rounding.

Company Overview

Wesco, headquartered in Pittsburgh, Pennsylvania, is alead ing provider of business-to-business distribution, logistics services

and supply chain solutions.

We employ approximately 20,000 people, maintain relationships with more than 50,000 suppliers, and serve nearly 150,000
customers worldwide. With millions of products, end-to-end supply chain services, and leading digital capabilities, we provide
innovative solutions to meet customer needs across commercial and industrial businesses, contractors, government agencies,
educational institutions, telecommunications providers, and utilities. Our innovative value-added solutions include supply chain
management, logistics and transportation, procurement, warehousing and inventory management, as well as kitting and labeling,
limited assembly of products and installation enhancement. We operate nearly 800 branches, warehouses and sales offices in
approximately 50 countries, providing a local presence for customers and a global network to serve multi-location businesses and
global corporations.

In 2021, we established ane w corporate brand strategy to adopt a single, master brand architecture. This initiative reflects our
corporate integration strategy and simplifies engagement for our customers and suppliers. In 2022, we launched the master brand
identity in North America and began migrating certain legacy sub-brands to the master brand architecture, a process that will
continue for the next several years. In 2023, we launched the Wesco Anixter go-to-market brand in all markets outside of the U.S.
and Canada, as part of our master brand deployment strategy. Due to the strength of its recognition with customers and suppliers,
we will continue to use the Anixter brand name globally for the foreseeable future.

We have operating segments comprising three strategic business units consisting of Electrical & Electronic Solutions (“EES”),
Communications & Security Solutions (“CSS”) and Utility & Broadband Solutions (“UBS”). These operating segments are
equivalent to our reportable segments. See Item 1, “Business” in this Annual Report on Form 10-K for adesc ription of each of
our reportable segments and their business activities.

28

Overall Financial Performance

Our financial results for 2023 compared to 2022 reflect single-digit sales growth driven by the benefits of price inflation,
increased scale, and secular demand trends. These impacts were partially offset by volume declines in certain businesses, as well
as slight margin contraction, and higher payroll and payroll-related expenses, costs to operate our facilities, along with expenses
associated with our digital transformation initiatives.

Net sales for 2023 increased $965.1 million, or 4.5%, over the prior year. The increase reflects the estimated impact of changes
in price of approximately 3% and the favorable impact of 2.1% from the acquisition of Rahi Systems Holdings, Inc. (“Rahi
Systems”), which closed in November of 2022. These positive factors were partially offset by the negative impacts of fluctuations
in foreign exchange rates of 0.4% and the number of workdays of 0.4%. Volume growth did not have a material impact on the
year-over-year increase in organic sales. Cost of goods sold as a percentage of net sales was 78.4% and 78.2% for 2023 and 2022,
respectively. The unfavorable increase of 20 basis points reflects lower supplier volume rebates and ash ift in sales mix, partially
offset by our continued focus on a strategy of pricing products and services to realize the value that we provide to our customers
as a result of our broad portfolio of product and service offerings, global footprint and capabilities (“value-driven pricing”).

Income from operations was $1,406.4 million for 2023, compared to $1,438.1 million for 2022, a decrease of $31.7 million,
or 2.2%. Income from operations as a percentage of net sales was 6.3% for the current year, compared to 6.7% for the prior year.
Income from operations for 2023 includes merger-related and integration costs of $55.4 million, restructuring costs of $16.7
million, and accelerated trademark amortization expense of $1.6 million. Adjusted for these items, income from operations was
6.6% of net sales in 2023. For 2022, income from operations was 7.1% of net sales, as adjusted for merger-related and integration
costs of $67.4 million and accelerated trademark amortization expense of $9.8 million. For 2023, income from operations declined
compared to the prior year due to higher cost of goods sold as a percentage of net sales, higher salaries and benefits due to wage
inflation and increased headcount, including the impact of the Rahi Systems acquisition, as well as an increase in volume-related
costs such as commissions and marketing costs. The costs to operate our facilities also unfavorably affected income from
operations. In addition, digital transformation initiatives contributed to higher expenses in 2023. These negative factors were
partially offset by sales growth as well as the realization of integration synergies and aredu ction to incentive compensation
expense.

Earnings per diluted share for 2023 was $13.54, based on 52.3 million diluted shares, compared to $15.33 for 2022, based on
52.4 million diluted shares, a decrease of 11.7%. Adjusted for merger-related and integration costs, restructuring costs, accelerated
trademark amortization expense, net pension settlement cost, and the related income tax effects, earnings per diluted share for
2023 was $14.60. Adjusted for merger-related and integration costs, accelerated trademark amortization expense, and the related
income tax effects, earnings per diluted share for 2022 was $16.42. Adjusted earnings per diluted share decreased 11.1% year-
over-year.

Our industry and the broader economy have experienced supply chain challenges, including product delays and backlogged
orders, shortages in raw materials and components, labor shortages, transportation challenges, and higher costs. We have
aggressively responded to these supply chain issues which have largely improved and progressively become manageable
throughout 2023.

Cash Flow

Operating cash flow for 2023 was $493.2 million. Net cash provided by operating activities included net income of
$766.1 million and non-cash adjustments to net income totaling $235.8 million, which primarily consisted of depreciation and
amortization of $181.3 million, stock-based compensation expense of $48.1 million, amortization of debt discount and debt
issuance costs of $14.8 million, and deferred income taxes of $7.9 million. Operating cash flow was negatively impacted by net
changes in assets and liabilities of $508.7 million, which primarily consisted of a decrease in accounts payable of $319.7 million,
mainly due to a reduction in inventory purchases in the fourth quarter, and an increase in inventories of $68.4 million. Inventories
grew at a slower rate than sales, as supply chain lead times have normalized. These cash usage factors were partially offset by
cash inflow from a decrease in trade accounts receivable of $52.2 million. Additionally, the payment of management incentive
compensation earned in 2022 resulted in a cash outflow of approximately $153.9 million in 2023, which was partially offset by
the accrual of management incentive compensation earned in the current year.

29

Investing activities primarily included $92.3 million of capital expenditures mostly consisting of internal-use computer
software and information technology hardware to support our digital transformation initiatives, as well as equipment and
leasehold improvements to support our global network of branches, warehouses and sales offices.

Financing activities primarily consisted of net repayments of $70.3 million related to our revolving credit facility (the
“Revolving Credit Facility”) and the repayment of our $58.6 million aggregate principal amount of 5.50% Anixter Senior Notes
due 2023, which matured on March 1, 2023, partially offset by net borrowings of $15.0 million related to our accounts receivable
securitization facility (the “Receivables Facility”). Financing activities for 2023 also included $76.6 million and $57.4 million of
dividends paid to holders of our common stock and Series A Preferred Stock, respectively, $75.0 million of common stock
repurchases, and $68.3 million of payments for taxes related to the exercise and vesting of stock-based awards.

Financing Availability

As of December 31, 2023, we had $736.0 million in total available borrowing capacity under our Revolving Credit Facility
and $75.0 million of available borrowing capacity under our Receivables Facility. The Revolving Credit Facility and the
Receivables Facility mature in March 2027 and March 2025, respectively. As of December 31, 2023, we also had $8.2 million of
borrowing capacity available under our international lines of credit that did not directly reduce availability under the Revolving
Credit Facility.

Critical Accounting Estimates

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial
statements, which have been prepared in accordance with U.S. GAAP. The preparation of these financial statements requires us
to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related
disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates that involve a significant level of
estimation uncertainty and have had or are reasonably likely to have a material impact on the financial condition or results of
operations, including those related to goodwill and indefinite-lived intangible assets, defined benefit pension plans, and income
taxes. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under
the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that
are not readily apparent from other sources. Actual results may differ from these estimates. If actual market conditions are less
favorable than those projected by management, additional adjustments to reserve items may be required. We believe the following
accounting estimates are the most critical to the understanding of our consolidated financial statements as they require subjective
or complex judgments by management.

Goodwill and Indefinite-Lived Intangible Assets

Goodwill and indefinite-lived intangible assets are tested for impairment annually as of October 1, or more frequently if
triggering events occur, indicating that their carrying values may not be recoverable. We test for goodwill impairment on a
reporting unit level. We performed our annual impairment tests of goodwill and indefinite-lived intangible assets during the fourth
quarter of 2023 by assessing qualitative factors to determine whether it was more likely than not that the fair values of our
reporting units and indefinite-lived intangible assets were less than their respective carrying amounts. As a result of this
assessment, we determined that it was more likely than not that the fair values of our reporting units and indefinite-lived intangible
assets continued to exceed their respective carrying amounts and, therefore, aqua ntitative impairment test was not necessary.

The determination of fair value involves significant management judgment, particularly as it relates to the underlying
assumptions and factors around future expected operating margins and discount rate. Management applies its best judgment when
assessing the reasonableness of financial projections. Fair values are sensitive to changes in underlying assumptions and factors.
As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual goodwill and indefinite-
lived intangible impairment tests will prove to be an accurate prediction of future results.

See Note 2, “Accounting Policies” and Note 5, “Goodwill and Intangible Assets” of our Notes to Consolidated Financial

Statements for additional disclosure regarding goodwill and indefinite-lived intangible assets.

30

Defined Benefit Pension Plans

Liabilities and expenses for defined benefit pension plans are determined using actuarial methodologies and incorporate
significant assumptions, including the interest rate used to discount the future estimated cash flows, the expected long-term rate
of return on plan assets, and several assumptions relating to the employee workforce (salary increases, retirement age, and
mortality).

Liabilities for defined benefit pension plans are particularly sensitive to changes in the discount rate. At the end of each fiscal
year, we determine the discount rate to measure our defined benefit pension plan liabilities at their present value. The discount
rate reflects the current rate at which the defined benefit pension plan liabilities could be effectively settled at the end of the year.
This rate is estimated using a yield curve based on corporate bond data, which we believe is consistent with observable market
conditions and industry standards for developing spot rate curves. The consolidated weighted-average discount rate used to
measure the projected benefit obligation of all plans was 4.4% and 4.6% at December 31, 2023 and 2022, respectively. As a
sensitivity measure, the effect of a 50-basis-point decline in the assumed discount rate would result in no change in the expense
for 2024, and an increase in our projected benefit obligations at December 31, 2023 of $31.0 million. The impact of a 50-basis-
point increase in the assumed discount rate would result in a decrease in the expense for 2024 of approximately $1.0 million, and
a decrease in our projected benefit obligations at December 31, 2023 of $29.0 million. Changes in the expected long-term rate of
return on plan assets and assumptions relating to the employee workforce are less likely to have a material impact on the
measurement of defined benefit pension plan liabilities.

See Note 2, “Accounting Policies” and Note 13, “Employee Benefit Plans” of our Notes to Consolidated Financial Statements

for additional disclosure regarding defined benefit pension plans.

Income Taxes

We recognize deferred tax assets consistent with amounts expected to be realized. To make such determination, management
evaluates all positive and negative evidence, including but not limited to, prior, current and future taxable income, tax planning
strategies and future reversals of existing taxable temporary differences. A valuation allowance is recognized if it is “more-likely-
than-not” that some or all of a deferred tax asset will not be realized. We regularly assess the realizability of deferred tax assets.

We account for uncertainty in income taxes using a “more-likely-than-not” recognition threshold. Due to the subjectivity
inherent in the evaluation of uncertain tax positions, the tax benefit ultimately recognized may materially differ from the estimate
recognized in the consolidated financial statements. We recognize interest and penalties related to uncertain tax benefits as part
of interest expense and income tax expense, respectively.

See Note 2, “Accounting Policies” and Note 11, “Income Taxes” of our Notes to Consolidated Financial Statements for

additional disclosure regarding income taxes.

Results of Operations

2023 Compared to 2022

Net Sales

The following table sets forth net sales and organic sales growth for the periods presented:

Year Ended December 31,

Growth/(Decline)

2023

2022

Reported

Acquisition

(In millions)

Foreign
Exchange

Workday

Organic
Sales

Net sales

$

22,385.2

$

21,420.1

4.5 %

2.1 %

(0.4)%

(0.4)%

3.2 %

31

Note: Organic sales growth is a non-GAAP financial measure of sales performance. Organic sales growth is calculated by deducting the
percentage impact from acquisitions and divestitures for one year following the respective transaction, fluctuations in foreign exchange rates
and number of workdays from the reported percentage change in consolidated net sales. Workday impact represents the change in the number
of operating days period-over-period after adjusting for weekends and public holidays in the United States; 2023 had one less workday compared
to 2022.

Net sales were $22.4 billion for 2023 compared with $21.4 billion for 2022, an increase of 4.5%. Adjusting for the favorable
impact from the acquisition of Rahi Systems of 2.1%, the unfavorable impacts from fluctuations in foreign exchange rates of
0.4% and the number of workdays of 0.4%, organic sales for 2023 grew by 3.2%. The increase was primarily due to the impact
of changes in price, which favorably impacted organic sales by approximately 3%. Volume growth did not have a material impact
on the year-over-year increase in organic sales, as increases in sales volume in the CSS and UBS operating segments were offset
by a decrease in sales volume in the EES segment.

Cost of Goods Sold

Cost of goods sold for 2023 was $17.5 billion compared to $16.8 billion for 2022. Cost of goods sold as a percentage of net
sales was 78.4% and 78.2% for 2023 and 2022, respectively. The unfavorable increase of 20 basis points reflects a shift in sales
mix and lower supplier volume rebates, partially offset by our continued focus on a strategy of pricing products and services to
realize the value that we provide to our customers as aresu lt of our broad portfolio of product and service offerings, global
footprint and capabilities (“value-driven pricing”).

Selling, General and Administrative Expenses

Selling, general and administrative (“SG&A”) expenses primarily include payroll and payroll-related costs, shipping and
handling, travel and entertainment, facilities, utilities, information technology expenses, professional and consulting fees, credit
losses, gains (losses) on the sale of property and equipment, as well as real estate and personal property taxes. SG&A expenses
for 2023 totaled $3.3 billion versus $3.0 billion for 2022, an increase of 7.0%. As a percentage of net sales, SG&A expenses were
14.5% and 14.2% for 2023 and 2022, respectively. SG&A expenses for 2023 and 2022 include merger-related and integration
costs of $55.4 million and $67.4 million, respectively. SG&A expenses for 2023 also include $16.7 million of restructuring costs.
Adjusted for merger-related and integration costs, and restructuring costs, SG&A expenses for 2023 were 14.2% of net sales for
2023 and 13.9% of net sales for 2022.

SG&A payroll and payroll-related expenses for 2023 of $2.1 billion increased by $89.4 million compared to 2022 as a result
of higher salaries and benefits due to wage inflation and increased headcount, including the impact of the Rahi Systems
acquisition, partially offset by the impact of headcount reductions taken at the end of the second quarter of 2023. This increase in
payroll and payroll-related expenses also includes an increase in sales commissions of $31.9 million and a reduction to incentive
compensation expense of $98.3 million.

SG&A expenses not related to payroll and payroll-related costs for 2023 were $1.2 billion, an increase of $122.4 million
compared to 2022, which primarily reflects higher costs to operate our facilities of $49.2 million, increased marketing costs of
$11.5 million, as well as higher employee expenses of $6.6 million due to increased headcount. In addition, digital transformation
initiatives contributed to higher expenses of $22.4 million in 2023, which includes higher professional and consulting expenses.
These increases were partially offset by the realization of integration cost synergies.

Depreciation and Amortization

Depreciation and amortization increased $2.3 million to $181.3 million for 2023, compared to $179.0 million for 2022.
Depreciation and amortization for 2023 and 2022 includes $1.6 million and $9.8 million, respectively, of accelerated amortization
expense resulting from changes in the estimated useful lives of certain legacy trademarks that are migrating to our master brand
architecture.

Income from Operations

Income from operations was $1,406.4 million for 2023 compared to $1,438.1 million for 2022. The decrease of $31.7 million,
or 2.2%, reflects slightly higher cost of goods sold as a percentage of net sales and higher SG&A expenses, as described above,
partially offset by sales growth and the realization of integration synergies.

32

Interest Expense, net

Net interest expense totaled $389.3 million for 2023 compared to $294.4 million for 2022. The increase of $94.9 million, or

32.2%, reflects higher borrowings and an increase in variable interest rates.

Other Expense, net

Other non-operating expense totaled $25.1 million for 2023 compared to $7.0 million for 2022. Due to fluctuations in the U.S.
dollar against certain foreign currencies, particularly the Argentine Peso and the Egyptian Pound, a net foreign currency exchange
loss of $22.9 million was recognized for 2023 compared to a net loss of $19.9 million for 2022. We recognized net costs of $0.2
million and net benefits of $14.8 million associated with the non-service cost components of net periodic pension cost (benefit)
for 2023 and 2022, respectively. The year-over-year change was primarily due to ade crease in expected return on plan assets and
an increase in interest cost. Other non-operating expense for 2023 includes net pension settlement cost of $2.8 million primarily
related to the partial settlement of the Company's pension plan in the U.S., partially offset by pension settlement gains related to
other plans. Adjusted for this amount, other non-operating expense was $22.3 million for 2023.

Income Taxes

The provision for income taxes was $225.9 million for 2023 compared to $274.5 million for 2022, resulting in effective tax
rates of 22.8% and 24.2%, respectively. The effective tax rate for both the current year and the prior year were favorably impacted
by the tax benefits related to the exercise and vesting of stock-based awards and reductions in the valuation allowance recorded
against certain deferred tax assets. The lower effective tax rate in the current year is due primarily to higher tax benefits from
stock-based compensation deductions and foreign tax credit utilization as compared to the prior year.

Net Income and Earnings per Share

Net income and earnings per diluted share attributable to common stockholders were $708.1 million and $13.54, respectively,
for 2023 compared to $803.1 million and $15.33, respectively, for 2022. Adjusted for merger-related and integration costs,
restructuring costs, accelerated trademark amortization expense, net pension settlement cost, and the related income tax effects,
net income and earnings per diluted share attributable to common stockholders were $763.6 million and $14.60, respectively, for
the year ended December 31, 2023. Adjusted for merger-related and integration costs, accelerated trademark amortization
expense, and the related income tax effects, net income and earnings per diluted share attributable to common stockholders were
$860.1 million and $16.42, respectively, for the year ended December 31, 2022.

Adjusted EBITDA

Adjusted EBITDA, a non-GAAP financial measure, was $1,705.3 million for 2023 compared to $1,725.6 million for 2022.
Adjusted EBITDA decreased $20.3 million, or 1.2% year-over-year. The decrease primarily reflects the $211.8 million increase
in SG&A expenses, as well as the increase in cost of goods sold of $782.7 million, partially offset by the $1.0 billion increase in
net sales, as described above. Included in the increase in SG&A expenses was restructuring costs of $16.7 million, partially offset
by a decrease in merger-related and integration costs of $12.0 million.

Segment Results

The following is a discussion of the financial results of our operating segments comprising three strategic business units
consisting of EES, CSS and UBS for the year ended December 31, 2023. As further described below and in Note 16, “Business
Segments” of our Notes to the Consolidated Financial Statements, the performance of our operating segments is based on net
sales, adjusted EBITDA, and adjusted EBITDA margin percentage. Adjusted EBITDA and adjusted EBITDA margin percentage
are non-GAAP financial measures.

33

Electrical & Electronic Solutions

Year Ended December 31,

2023

2022

(In millions)

Reported Acquisition

Growth/(Decline)
Foreign
Exchange Workday

Organic
Sales

Net sales
Adjusted EBITDA
Adjusted EBITDA margin %

$
$

$
$

8,610.3
727.4
8.4 %

8,823.3
851.3
9.6 %

(2.4)%

— %

(0.6)%

(0.4)%

(1.4)%

EES reported net sales of $8.6 billion for 2023 compared to $8.8 billion for 2022, a decrease of 2.4%. Adjusting for the
unfavorable impact from fluctuations in foreign exchange rates of 0.6% and the number of workdays of 0.4%, EES organic sales
for 2023 declined 1.4%, reflecting volume declines of approximately 2%, primarily as aresu lt of declines in construction and
original equipment manufacturers, partially offset by continued positive momentum in industrial and the benefits of selling the
broader company portfolio (“cross selling”). In addition, a transfer of certain customer accounts to the CSS segment negatively
impacted organic net sales for EES by approximately 2%. These negative factors were partially offset by the impact of changes
in price, which favorably impacted organic sales by approximately 3%.

EES reported adjusted EBITDA of $727.4 million for 2023, or 8.4% of net sales, compared to $851.3 million for 2022, or
9.6% of net sales. Adjusted EBITDA decreased $123.9 million, or 14.6% year-over-year. The decrease primarily reflects the
decline in net sales, as described above, and an increase in SG&A expenses as a percentage of net sales, partially offset by a
decrease in cost of goods sold of $131.8 million, which is inclusive of higher inventory write-downs and lower supplier volume
rebates totaling approximately $28.7 million and the negative impact of a shift in sales mix. SG&A expenses increased $41.6
million as compared to the prior year, which was primarily attributed to higher payroll and payroll-related expenses of $43.6
million as a result of higher salaries due to wage inflation and increased headcount. This increase in payroll and payroll-related
expenses also includes a reduction to incentive compensation expense of $31.4 million.

Communications & Security Solutions

Year Ended December 31,

2023

2022

(In millions)

Reported Acquisition

Growth/(Decline)
Foreign
Exchange Workday

Organic
Sales

Net sales
Adjusted EBITDA
Adjusted EBITDA margin %

$
$

$
$

7,152.2
683.8
9.6 %

6,401.5
599.0
9.4 %

11.7 %

7.1 %

(0.4)%

(0.4)%

5.4 %

CSS reported net sales of $7.2 billion for 2023 compared to $6.4 billion for 2022, an increase of 11.7%. Adjusting for the
favorable impact from the acquisition of Rahi Systems of 7.1%, the unfavorable impacts from fluctuations in foreign exchange
rates of 0.4% and the number of workdays of 0.4%, CSS organic sales for 2023 grew 5.4%, reflecting the impact of changes in
price, which favorably impacted organic sales by approximately 1%. Volume growth, which includes growth in data center,
security solutions and enterprise network infrastructure and the benefits of cross selling, favorably impacted organic sales by
approximately 1%. The transfer of certain customer accounts from the EES segment also positively impacted organic net sales
for CSS by approximately 3%.

CSS reported adjusted EBITDA of $683.8 million for 2023, or 9.6% of net sales, compared to $599.0 million for 2022, or
9.4% of net sales. Adjusted EBITDA increased $84.8 million, or 14.2% year-over-year. The increase primarily reflects the increase
in net sales, as described above, partially offset by a corresponding increase in cost of goods sold of $580.2 million. SG&A
expenses increased $90.5 million as compared to the prior year, which was primarily attributed to higher payroll and payroll-
related expenses of $45.1 million as a result of higher salaries due to wage inflation and increased headcount, including the impact
of the Rahi Systems acquisition. This increase in payroll and payroll-related expenses also includes an increase in sales
commissions of $26.1 million and a reduction to incentive compensation expense of $29.9 million. Additionally, higher costs to
operate our facilities of $15.9 million, higher marketing costs of $6.8 million due to increased sales volume, and higher employee
expenses of $5.9 million due to increased headcount contributed to the year-over-year increase in SG&A expenses.

34

Utility & Broadband Solutions

Year Ended December 31,

2023

2022

(In millions)

Reported Acquisition

Growth/(Decline)
Foreign
Exchange Workday

Organic
Sales

Net sales
Adjusted EBITDA
Adjusted EBITDA margin %

$
$

$
$

6,622.7
739.3
11.2 %

6,195.3
677.3
10.9 %

6.9 %

— %

(0.2)%

(0.4)%

7.5 %

UBS reported net sales of $6.6 billion for 2023 compared to $6.2 billion for 2022, an increase of 6.9%. Adjusting for the
unfavorable impacts of fluctuations in foreign exchange rates of 0.2% and the number of workdays of 0.4%, UBS organic sales
for 2023 grew 7.5%, reflecting the impact of changes in price, which favorably impacted organic sales by approximately 6%.
Volume growth, which includes growth in utility and integrated supply, and the benefits of cross selling, partially offset by lower
sales in broadband, particularly in Canada, favorably impacted organic sales by approximately 2%.

UBS reported adjusted EBITDA of $739.3 million for 2023, or 11.2% of net sales, compared to $677.3 million for 2022, or
10.9% of net sales. Adjusted EBITDA increased $62.0 million, or 9.2% year-over-year. The increase primarily reflects the $427.4
million increase in net sales, as described above, partially offset by a corresponding increase in cost of goods sold of $334.4
million. SG&A expenses increased $31.2 million as compared to the prior year, which was primarily attributed to higher payroll
and payroll-related expenses of $13.2 million as a result of higher salaries due to wage inflation and increased headcount. This
increase in payroll and payroll-related expenses includes a reduction to incentive compensation expense of $6.5 million and a
decrease in sales commissions of $1.1 million. Additionally, higher costs to operate our facilities of $13.9 million and increased
transportation costs of $4.1 million as aresu lt of sales growth, contributed to the year-over-year increase in SG&A expenses.

The following tables reconcile net income attributable to common stockholders to adjusted EBITDA and adjusted EBITDA

margin % by segment, which are non-GAAP financial measures, for the periods presented:

(In millions)

Net income attributable to common stockholders $
Net (loss) income attributable to noncontrolling

interests

Preferred stock dividends

Provision for income taxes(1)

Interest expense, net(1)

Depreciation and amortization

Other expense (income), net

Stock-based compensation expense(2)

Merger-related and integration costs(3)

Restructuring costs(4)

Adjusted EBITDA

Year Ended December 31, 2023

EES

CSS

UBS

Corporate

Total

668.7

$

531.1

$

712.5

$ (1,204.2)

$

708.1

(0.5)

—

—

—

43.3

10.1

5.8

—

—

1.6

—

—

—

71.7

74.2

5.2

—

—

—

—

—

—

25.0

(1.4)

3.2

—

—

(0.5)

57.4

225.9

389.3

41.3

(57.8)

31.3

55.4

16.7

0.6

57.4

225.9

389.3

181.3

25.1

45.5

55.4

16.7

$

727.4

$

683.8

$

739.3

$

(445.2)

$

1,705.3

Adjusted EBITDA margin %

8.4 %
(1) The reportable segments do not incur income taxes and interest expense as these costs are centrally controlled through the Corporate

11.2 %

9.6 %

tax and treasury functions.

(2) Stock-based compensation expense in the calculation of adjusted EBITDA for the year ended December 31, 2023 excludes $2.6 million

that is included in merger-related and integration costs.

(3) Merger-related and integration costs include integration and professional fees associated with the integration of Wesco and Anixter,
including digital transformation costs, as well as advisory, legal, and separation costs associated with the merger between the two
companies.

(4) Restructuring costs include severance costs incurred pursuant to an ongoing restructuring plan.

35

(In millions)

Net income attributable to common stockholders $
Net income attributable to noncontrolling

interests

Preferred stock dividends

Provision for income taxes(1)

Interest expense, net(1)

Depreciation and amortization

Other (income) expense, net

Stock-based compensation expense(2)

Merger-related and integration costs(3)

Year Ended December 31, 2022

EES

CSS

UBS

Corporate

Total

801.3

$

527.0

$

648.5

$ (1,173.7)

$

803.1

0.2

—

—

—

42.6

(2.0)

9.2

—

—

—

—

—

68.4

(1.3)

4.9

—

—

—

—

—

23.3

2.0

3.5

—

1.5

57.4

274.5

294.4

44.7

8.3

23.4

67.4

1.7

57.4

274.5

294.4

179.0

7.0

41.0

67.4

Adjusted EBITDA

$

851.3

$

599.0

$

677.3

$

(401.9)

$

1,725.6

Adjusted EBITDA margin %

9.6 %
(1) The reportable segments do not incur income taxes and interest expense as these costs are centrally controlled through the Corporate

10.9 %

9.4 %

tax and treasury functions.

(2) Stock-based compensation expense in the calculation of adjusted EBITDA for the year ended December 31, 2022 excludes $5.4 million

that is included in merger-related and integration costs.

(3) Merger-related and integration costs include integration and professional fees associated with the integration of Wesco and Anixter,
including digital transformation costs, as well as advisory, legal, and separation costs associated with the merger between the two
companies.

Note: Adjusted EBITDA and Adjusted EBITDA margin % are non-GAAP financial measures that provide indicators of our performance and
ability to meet debt service requirements. Adjusted EBITDA is defined as earnings before interest, taxes, depreciation and amortization before
other non-operating expenses (income), non-cash stock-based compensation expense, merger-related and integration costs, and restructuring
costs. Adjusted EBITDA margin % is calculated by dividing Adjusted EBITDA by net sales.

36

The following tables reconcile selling, general and administrative expenses, income from operations, other non-operating
expense, provision for income taxes and earnings per diluted share to adjusted selling, general and administrative expenses,
adjusted income from operations, adjusted other non-operating expense, adjusted provision for income taxes and adjusted
earnings per diluted share, which are non-GAAP financial measures, for the periods presented:

Adjusted SG&A Expenses:
Selling, general and administrative expenses
Merger-related and integration costs(1)
Restructuring costs(2)

Adjusted selling, general and administrative expenses

Adjusted Income from Operations:
Income from operations

Merger-related and integration costs(1)
Restructuring costs(2)
Accelerated trademark amortization(3)

Adjusted income from operations

Adjusted Other Expense, net:
Other expense, net

Pension settlement cost(4)
Adjusted other expense, net

Adjusted Provision for Income Taxes:
Provision for income taxes

Income tax effect of adjustments to income from operations(5)

Adjusted provision for income taxes

Year Ended December 31,

2023

2022

(In millions)

3,256.0
(55.4)
(16.7)
3,183.9

1,406.4
55.4
16.7
1.6
1,480.1

25.1
(2.8)
22.3

225.9
21.0
246.9

$

$

$

$

$

$

$

$

3,044.2
(67.4)
—
2,976.8

1,438.1
67.4
—
9.8
1,515.3

7.0
—
7.0

274.5
20.2
294.7

$

$

$

$

$

$

$

$

(1) Merger-related and integration costs include integration and professional fees associated with the integration of Wesco and Anixter, including

digital transformation costs, as well as advisory, legal, and separation costs associated with the merger between the two companies.

(2) Restructuring costs include severance costs incurred pursuant to an ongoing restructuring plan.

(3) Accelerated trademark amortization represents additional amortization expense resulting from changes in the estimated useful lives of

certain legacy trademarks that are migrating to our master brand architecture.

(4) Pension settlement cost represents expense related to the partial settlement of the Company's pension plan in the U.S., partially offset by

pension settlement gains related to other plans.

(5) The adjustments to income from operations for the years ended December 31, 2023 and 2022 have been tax effected at rates of 27.5% and

26.1%, respectively.

37

Adjusted Earnings Per Diluted Share:

(In millions, except per share data)

Adjusted income from operations

Interest expense, net
Adjusted other expense, net

Adjusted income before income taxes
Adjusted provision for income taxes

Adjusted net income

Net income attributable to noncontrolling interests

Adjusted net income attributable to WESCO International, Inc.

Preferred stock dividends

Adjusted net income attributable to common stockholders

Diluted shares
Adjusted earnings per diluted share

Year Ended December 31,

2023

2022

$

$

$

1,480.1
389.3
22.3
1,068.5
246.9
821.6
0.6
821.0
57.4
763.6

52.3
14.60

$

$

$

1,515.3
294.4
7.0
1,213.9
294.7
919.2
1.7
917.5
57.4
860.1

52.4
16.42

Note: For the year ended December 31, 2023, SG&A expenses, income from operations, other non-operating expense, the provision for income
taxes and earnings per diluted share have been adjusted to exclude merger-related and integration costs, restructuring costs, accelerated
amortization expense associated with migrating to our master brand architecture, net pension settlement cost primarily related to the partial
settlement of the Company's pension plan in the U.S., partially offset by pension settlement gains related to other plans, and the related income
tax effects. For the year ended December 31, 2022, SG&A expenses, income from operations, the provision for income taxes and earnings per
diluted share have been adjusted to exclude merger-related and integration costs, accelerated trademark amortization expense associated with
migrating to our master brand architecture, and the related income tax effects. These non-GAAP financial measures provide a better
understanding of our financial results on a comparable basis.

Liquidity and Capital Resources

Our liquidity needs generally arise from fluctuations in our working capital requirements, information technology investments,
capital expenditures, acquisitions, the payment of dividends, and debt service obligations. As of December 31, 2023, we had
$736.0 million in available borrowing capacity under our Revolving Credit Facility, after giving effect to outstanding letters of
credit and certain borrowings under our international lines of credit, and $75.0 million in available borrowing capacity under our
Receivables Facility, which combined with available cash of $250.1 million, provided liquidity of $1.1 billion. Cash included in
our determination of liquidity represents cash in certain deposit and interest-bearing investment accounts. We monitor the
depository institutions that hold our cash and cash equivalents on a regular basis, and we believe that we have placed our deposits
with creditworthy financial institutions.

We regularly review our mix of fixed versus variable rate debt, and we may, from time to time, issue or retire borrowings
and/or refinance existing debt in an effort to mitigate the impact of interest rate and foreign exchange rate fluctuations, and to
maintain a cost-effective capital structure consistent with our anticipated capital requirements. Economic conditions contributed
to increases in interest rates during 2023 and 2022. Further increases will raise the rates we pay on our variable rate debt and will
contribute to higher interest expense versus prior periods.

At December 31, 2023, approximately 53% of our debt portfolio consisted of fixed rate debt. We believe our capital structure

has an appropriate mix of fixed versus variable rate debt and secured versus unsecured instruments.

Over the next several quarters, we expect that our excess liquidity will be directed primarily at debt reduction, digital
transformation initiatives, returning capital to shareholders through the payment of dividends and our existing share repurchase
authorization, or potential acquisitions and related integration activities. We expect to maintain sufficient liquidity through our
credit facilities and cash balances. We believe cash provided by operations and financing activities will be adequate to cover our
operational and business needs for at least the next twelve months.

38

We communicate on a regular basis with our lenders regarding our financial and working capital performance, and liquidity
position. We were in compliance with all financial covenants and restrictions contained in our debt agreements as of December 31,
2023.

We also measure our ability to meet our debt obligations based on our financial leverage ratio, which was 2.8x as of

December 31, 2023 and 2.9x as of December 31, 2022.

The following table sets forth our financial leverage ratio, which is a non-GAAP financial measure, for the periods presented:

(In millions of dollars, except ratios)

Net income attributable to common stockholders
Net income attributable to noncontrolling interests
Preferred stock dividends
Provision for income taxes
Interest expense, net
Depreciation and amortization

EBITDA
Other expense, net
Stock-based compensation expense
Merger-related and integration costs(1)
Restructuring costs(2)

Adjusted EBITDA

Short-term debt and current portion of long-term debt, net
Long-term debt, net
Debt discount and debt issuance costs(3)
Fair value adjustments to Anixter Senior Notes due 2023 and 2025(3)

Total debt

Less: Cash and cash equivalents

Total debt, net of cash

Twelve months ended

December 31, 2023

December 31, 2022

$

$

$

$

$

708.1
0.6
57.4
225.9
389.3
181.3
1,562.6
25.1
45.5
55.4
16.7
1,705.3

$

$

$

As of

803.1
1.7
57.4
274.5
294.4
179.0
1,610.1
7.0
41.0
67.4
—
1,725.6

December 31, 2023
8.6
5,313.1
43.0
(0.1)
5,364.6
524.1
4,840.5

December 31, 2022
70.5
5,346.0
57.9
(0.3)
5,474.1
527.3
4,946.8

$

$

Financial leverage ratio

2.8

2.9

(1) Merger-related and integration costs include integration and professional fees associated with the integration of Wesco and Anixter,
including digital transformation costs, as well as advisory, legal, and separation costs associated with the merger between the two
companies.

(2) Restructuring costs include severance costs incurred pursuant to an ongoing restructuring plan.

(3) Debt is presented in the Consolidated Balance Sheets net of debt discount and debt issuance costs, and includes adjustments to record

the long-term debt assumed in the merger with Anixter at its acquisition date fair value.

Note: Financial leverage ratio is a non-GAAP measure of the use of debt. Financial leverage ratio is calculated by dividing total debt,
excluding debt discount, debt issuance costs and fair value adjustments, net of cash, by adjusted EBITDA. EBITDA is defined as the trailing
twelve months earnings before interest, taxes, depreciation and amortization. Adjusted EBITDA is defined as the trailing twelve months
EBITDA before other non-operating expense (income), non-cash stock-based compensation expense, merger-related and integration costs,
and restructuring costs.

39

The undistributed earnings of our foreign subsidiaries amounted to approximately $2,194.1 million at December 31, 2023.
Most of these earnings have been taxed in the U.S. under either the one-time tax on the deemed repatriation of undistributed
foreign earnings (the “transition tax”), or the global intangible low-taxed income (“GILTI”) tax regime imposed by the Tax Cuts
and Jobs Act of 2017. We have elected to pay the transition tax in installments over an eight year period, which ends in 2026. As
of December 31, 2023, our remaining liability for the transition tax was $53.8 million. We continue to assert that the remaining
undistributed earnings of our foreign subsidiaries are indefinitely reinvested. The distribution of earnings by our foreign
subsidiaries in the form of dividends, or otherwise, may be subject to additional taxation. We estimate that additional taxes of
approximately $119.3 million would be payable upon the remittance of all previously undistributed foreign earnings as of
December 31, 2023, based upon the laws in effect on that date. We believe that we are able to maintain sufficient liquidity for our
domestic operations and commitments without repatriating cash from our foreign subsidiaries.

We finance our operating and investing needs primarily with borrowings under our Revolving Credit Facility and Receivables
Facility, as well as uncommitted lines of credit entered into by certain of our foreign subsidiaries to support local operations,
some of which are overdraft facilities. The Revolving Credit Facility has a borrowing limit of $1,725 million and the purchase
limit under the Receivables Facility is $1,625 million. As of December 31, 2023, we had $953.0 million and $1,550.0 million
outstanding under the Revolving Credit Facility and Receivables Facility, respectively. The maximum borrowing limits of our
international lines of credit vary by facility and range between $0.6 million and $10.0 million. Our international lines of credit
generally are renewable on an annual basis and certain facilities are fully and unconditionally guaranteed by Wesco Distribution.
Accordingly, certain borrowings under these lines directly reduce availability under our Revolving Credit Facility. As of
December 31, 2023, there was $8.2 million of borrowing capacity available under the international lines of credit that did not
directly reduce availability under the Revolving Credit Facility. As of December 31, 2023, we had $1.0 million outstanding under
our international lines of credit.

On March 1, 2023, we repaid the $58.6 million aggregate principal amount of our 5.50% Anixter Senior Notes due 2023. The

repayment was funded with borrowings under our Revolving Credit Facility and had no impact on our results of operations.

Our $1,500 million of 7.125% Senior Notes will mature on June 15, 2025 (“2025 Notes”). On and after June 15, 2024, all or
part of the 2025 Notes may be redeemed at a redemption price equal to 100% of the principal amount. We expect to complete a
transaction or transactions to refinance the 2025 Notes during 2024.

For information regarding amendments to the Receivables Facility and Revolving Credit Facility as well as disclosure of our
debt instruments, including our outstanding indebtedness as of December 31, 2023, see Note 9, “Debt” of our Notes to
Consolidated Financial Statements.

An analysis of cash flows for 2023 and 2022 follows:

Operating Activities

Net cash provided by operating activities for 2023 totaled $493.2 million, compared to $11.0 million of cash generated in
2022. Net cash provided by operating activities for 2023 included net income of $766.1 million and non-cash adjustments to net
income totaling $235.8 million, which primarily consisted of depreciation and amortization of $181.3 million, stock-based
compensation expense of $48.1 million, and amortization of debt discount and debt issuance costs of $14.8 million, partially
offset by deferred income taxes of $7.9 million.

Other sources of cash in 2023 included a decrease in trade accounts receivable of $52.2 million due to the timing of receipts
from customers and a decrease in net sales in the fourth quarter of 2023 compared to the fourth quarter of the prior year and a
decrease in other accounts receivable of $3.6 million due primarily to the collection of supplier volume rebates earned in 2022 in
excess of income accrued during the current period, partially offset by an increase in value-added tax receivables. Primary uses
of cash in 2023 included a decrease in accounts payable of $319.7 million primarily due to a reduction in inventory purchases in
the fourth quarter, a decrease in accrued payroll and benefit costs of $92.3 million resulting primarily from the payment of
management incentive compensation earned in 2022, partially offset by the accrual of management incentive compensation
earned in the current year. Net operating cash flow was also negatively impacted by $68.4 million from an increase in inventories.
Inventories grew at a slower rate than sales, as supply chain lead times have normalized. Uses of cash in 2023 also included an
increase in other current and noncurrent assets of $60.6 million primarily due to an increase in capitalized costs associated with

40

developing cloud computing arrangements to support our digital transformation initiatives, as well as ade crease in other current
and noncurrent liabilities of $23.5 million.

Net cash provided by operating activities for 2022 totaled $11.0 million. Net cash provided by operating activities for 2022
included net income of $862.1 million and non-cash adjustments to net income totaling $243.1 million, which primarily consisted
of depreciation and amortization of $179.0 million, stock-based compensation expense of $46.4 million, and amortization of debt
discount and debt issuance costs of $15.2 million, partially offset by deferred income taxes of $1.2 million.

Other sources of cash in 2022 included an increase in accounts payable of $552.9 million due to higher purchases of inventory
and an increase in other current and noncurrent liabilities of $131.6 million, primarily due to increases in deferred revenue and
accrued taxes. Primary uses of cash in 2022 included an increase in inventories of $817.0 million due to supply chain challenges
and to support growth in our sales backlog, including project-based business, an increase in trade accounts receivable of $690.6
million resulting from significant sales growth, an increase in other current and noncurrent assets of $153.2 million, primarily
due to an increase in capitalized costs associated with developing cloud computing arrangements to support our digital
transformation initiatives, an increase in other receivables of $54.8 million associated with higher supplier volume rebate income
accruals, and a decrease in accrued payroll and benefit costs of $63.1 million due to lower incentive compensation accruals.

Investing Activities

Net cash used in investing activities in 2023 was $89.6 million, compared to $283.6 million in 2022. Included in 2023 were
capital expenditures of $92.3 million which primarily consisted of internal-use computer software and information technology
hardware to support our digital transformation initiatives, as well as equipment and leasehold improvements to support our global
network of branches, warehouses and sales offices.

Net cash used in investing activities in 2022 was $283.6 million. Included in 2022 was $255.4 million of cash paid to acquire
Rahi Systems, less cash acquired of $68.6 million, as described in Note 6, “Acquisitions and Disposals” of our Notes to
Consolidated Financial Statements. Capital expenditures were $99.4 million in 2022.

Financing Activities

Net cash used in financing activities in 2023 was $403.9 million, compared to $584.0 million of net cash provided by financing
activities in 2022. During 2023, financing activities primarily consisted of net repayments of $70.3 million related to our
Revolving Credit Facility and the repayment of our $58.6 million aggregate principal amount of 5.50% Anixter Senior Notes due
2023, partially offset by net borrowings of $15.0 million related to our Receivables Facility. Financing activities for 2023 also
included $76.6 million and $57.4 million of dividends paid to holders of our common stock and Series A Preferred Stock,
respectively, $75.0 million of common stock repurchases, $68.3 million of payments for taxes related to the exercise and vesting
of stock-based awards, and net repayments on our various international lines of credit of approximately $6.0 million.

Net cash provided by financing activities in 2022 was $584.0 million. During 2022, financing activities primarily consisted
of net borrowings of $433.0 million related to our Revolving Credit Facility and net borrowings of $265.0 million related to our
Receivables Facility. Financing activities for 2022 also included $57.4 million of dividends paid to holders of our Series A
Preferred Stock, $25.8 million of payments for taxes related to the exercise and vesting of stock-based awards, borrowings and
repayments of $19.5 million and $19.5 million, respectively, related to our various international lines of credit, and $11.1 million
of common stock repurchases.

The following table summarizes our material cash requirements from known contractual and other obligations at

December 31, 2023, including interest, and the expected effect on our liquidity and cash flow in future periods:

2024

2025 to 2026

2027 to 2028

2029 - After

Total

(In millions)

Debt, excluding debt discount and debt issuance costs $
Interest on indebtedness(1)
Non-cancelable operating leases
Transition tax installments
Defined benefit pension plans(2)

Total

$

8.6
365.4
191.2
16.1
7.0
588.3

$

$

3,070.0
393.5
319.0
37.7
—
3,820.2

$

$

2,284.5
155.0
206.4
—
—
2,645.9

$

$

1.5
—
188.8
—
—
190.3

$

$

5,364.6
913.9
905.4
53.8
7.0
7,244.7

41

(1)

Interest on variable rate debt was calculated using the rates and balances outstanding at December 31, 2023.

(2) As disclosed in Note 13, “Employee Benefit Plans” of our Notes to Consolidated Financial Statements, the majority of our various defined
benefit pension plans are non-contributory and, with the exception of the U.S. and Canada, cover substantially all full-time employees in
their respective countries. Retirement benefits are provided based on compensation as defined in the plans. Our policy is to fund these plans
as required by the Employee Retirement Income Security Act, the Internal Revenue Service and local statutory law. We currently estimate
that we will contribute $7.0 million to our foreign pension plans in 2024. Due to the future impact of various market conditions, rates of
return and changes in plan participants, we cannot provide a meaningful estimate of our future contributions beyond 2024.

In addition to the cash requirements disclosed in the table above, we expect future uses of cash to include working capital
requirements, capital expenditures, investments in our digital capabilities, dividend payments to holders of our common stock
and Series A Preferred Stock, benefit payments to participants in our deferred compensation plan, and other organic opportunities.
Future uses of cash could also include acquisitions of businesses and the repurchase of common or preferred stock. We expect to
spend approximately $100 million in 2024 on capital expenditures for information technology investments and to support our
global network of branches, warehouses and sales offices.

We expect to fund future uses of cash with a combination of existing cash balances, cash generated from operating activities,

borrowings under our revolving credit and accounts receivable securitization facilities, or new issuances of debt.

Purchase orders for inventory requirements and service contracts are not included in the table above. Generally, our purchase
orders and contracts contain clauses allowing for cancellation. We do not have significant agreements to purchase material or
goods that would specify minimum order quantities.

Liabilities related to unrecognized tax benefits, including interest and penalties, of $133.7 million were excluded from the
table above as we cannot reasonably estimate the timing of these potential cash settlements with taxing authorities. See Note 11,
“Income Taxes” in our Notes to Consolidated Financial Statements for further information related to unrecognized tax benefits.

Seasonality

Our operating results are not significantly affected by seasonal factors. Sales during the first and fourth quarters have
historically been affected by a reduced level of activity due to the impact of weather on projects. Sales typically increase beginning
in March, with slight fluctuations per month through October. During periods of economic expansion or contraction, our sales by
quarter have varied significantly from this pattern.

Recent Accounting Standards

See Note 2, “Accounting Policies” of our Notes to Consolidated Financial Statements for a description of recently adopted

and recently issued accounting standards.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk.

Foreign Currency Risks

In 2023, approximately 26% of our sales were from our foreign subsidiaries and are denominated in foreign currencies. Our
exposure to currency rate fluctuations primarily relate to Canada (Canadian dollar), certain countries in the European Union
(euro), the United Kingdom (British pound), Sweden (Swedish krona), Switzerland (Swiss franc), and Australia (Australian
dollar). We also have exposure to currency rate fluctuations related to more volatile markets including Argentina (peso), Brazil
(real), Chile (peso), Colombia (peso), Egypt (pound), Mexico (peso), and Turkey (lira). We may establish additional foreign
subsidiaries in the future. Accordingly, we may derive alarg er portion of our sales from international operations, and a portion of
these sales may be denominated in foreign currencies. As a result, our future operating results could be subject to further
fluctuations in foreign exchange rates relative to the U.S. dollar. Furthermore, to the extent that we engage in international sales
denominated in U.S. dollars, an increase in the value of the U.S. dollar relative to foreign currencies could make our products
less competitive in international markets.

42

We purchase foreign currency forward contracts to reduce the effect of fluctuating foreign currency-denominated accounts on
our reported earnings. The foreign currency forward contracts are not designated as hedges for accounting purposes. At
December 31, 2023 and 2022, the gross and net notional amounts of foreign currency forward contracts outstanding were
approximately $168.4 million and $172.8 million, respectively. We prepared a sensitivity analysis of our foreign currency forward
contracts assuming a10 % adverse change in the value of foreign currency contracts outstanding. The hypothetical adverse
changes would have resulted in recording a $16.8 million and $17.3 million loss in 2023 and 2022, respectively. However, since
these forward contracts are intended to be effective economic hedges, we would record offsetting gains as a result of the
remeasurement of the underlying foreign currency denominated monetary amounts being hedged.

Interest Rate Risk

Fixed Rate Borrowings: As of December 31, 2023, approximately 53% of our debt portfolio comprises fixed rate debt. As our
6.00% Anixter Senior Notes due 2025, 7.125% Senior Notes due 2025, and 7.250% Senior Notes due 2028 were issued at fixed
rates, interest expense would not be impacted by interest rate fluctuations. However, the fair value of our fixed rate debt will
generally fluctuate with movements of interest rates, increasing in periods of declining rates of interest and declining in periods
of increasing rates of interest. The fair value of our debt instruments with fixed interest rates is disclosed in Note 4, “Fair Value
of Financial Instruments” of our Notes to Consolidated Financial Statements.

Floating Rate Borrowings: Our variable rate borrowings comprise the Revolving Credit Facility, the Receivables Facility, and
international lines of credit. The fair value of these debt instruments at December 31, 2023 approximated carrying value. We
borrow under our Revolving Credit Facility and Receivables Facility for general corporate purposes, including working capital
requirements and capital expenditures. As disclosed in Note 9, “Debt” of our Notes to Consolidated Financial Statements, these
facilities were amended during 2022 to, among other things, replace the respective LIBOR-based interest rate options with SOFR-
based interest rate options, including term SOFR and daily simple SOFR. The use of SOFR in place of LIBOR for such facilities
has not had a material impact on our results from operations. A 100 basis point rise or decline in interest rates would result in an
increase or decrease to interest expense of $25.2 million under our current capital structure.

43

Item 8. Financial Statements and Supplementary Data.

The information required by this item is set forth in our Consolidated Financial Statements contained in this Annual Report

on Form 10-K. Specific financial statements can be found at the pages listed below:

Report of Independent Registered Public Accounting Firm (PCAOB ID 238)
Consolidated Balance Sheets as of December 31, 2023 and 2022
Consolidated Statements of Income and Comprehensive Income for the years ended

December 31, 2023, 2022 and 2021

Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2023, 2022 and 2021
Consolidated Statements of Cash Flows for the years ended December 31, 2023, 2022 and 2021
Notes to Consolidated Financial Statements

PAGE
45
47

48
49
50
51

44

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of WESCO International, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of WESCO International, Inc. and its subsidiaries (the
“Company”) as of December 31, 2023 and 2022, and the related consolidated statements of income and comprehensive income,
of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2023, including the related
notes and schedule of valuation and qualifying accounts for each of the three years in the period ended December 31, 2023
appearing under Item 15 (collectively referred to as the “consolidated financial statements”). We also have audited the Company's
internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated
Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position
of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years
in the period ended December 31, 2023 in conformity with accounting principles generally accepted in the United States of
America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting
as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control
over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in
Management’s Report on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express
opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting
based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United
States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities
laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the
audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement,
whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material
respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement
of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks.
Such procedures included examining, on ate st basis, evidence regarding the amounts and disclosures in the consolidated financial
statements. Our audits also included evaluating the accounting principles used and significant estimates made by management,
as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial
reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material
weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.
Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our
audits provide a reasonable basis for our opinions.

45

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally
accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that
(i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions
of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation
of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the
company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide
reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s
assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also,
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because
of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial
statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or
disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or
complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated
financial statements, taken as awh ole, and we are not, by communicating the critical audit matter below, providing a separate
opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Revenue Recognition

As described in Note 2 to the consolidated financial statements, the Company’s revenue arrangements generally consist of single
performance obligations to transfer a promised good or service, or a combination of goods and services. Revenue is measured as
the amount of consideration the Company expects to receive in exchange for transferring goods or providing services. Revenue
is recognized when control has transferred to the customer, which is generally when the product has shipped from the Company’s
facility or directly from a supplier. For the year ended December 31, 2023, the Company’s net sales were $22,385 million.

The principal consideration for our determination that performing procedures relating to revenue recognition is a critical audit
matter is the significant audit effort in performing procedures related to the Company’s revenue recognition.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall
opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the
revenue recognition process. These procedures also included, among others, for certain components, evaluating revenue
transactions on a sample basis by inspecting evidence of consideration received in exchange for transferring goods, and for other
components, (i) evaluating revenue transactions by testing the issuance and settlement of invoices and credit memos, (ii) tracing
transactions not settled to a detailed listing of accounts receivable, (iii) confirming a sample of outstanding customer invoice
balances at year end and obtaining and inspecting source documents, including invoices, sales contracts, and subsequent cash
receipts, where applicable, for confirmations not returned, and (iv) testing the completeness and accuracy of data provided by
management.

/s/ PricewaterhouseCoopers LLP

Pittsburgh, Pennsylvania
February 20, 2024

We have served as the Company’s auditor since 1994.

46

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

As of December 31,

2023

2022

(In millions, except per share data)

Current assets:

Assets

Cash and cash equivalents
Trade accounts receivable, net of allowance for expected credit losses of $55.9 and $46.5

$

524.1

$

527.3

in 2023 and 2022, respectively

Other accounts receivable
Inventories
Prepaid expenses and other current assets

Total current assets

Property, buildings and equipment, net
Operating lease assets
Intangible assets, net
Goodwill
Deferred income taxes
Other assets

Total assets

Liabilities and Stockholders’ Equity

Current liabilities:
Accounts payable
Accrued payroll and benefit costs
Short-term debt and current portion of long-term debt
Other current liabilities

Total current liabilities

Long-term debt, net of debt discount and debt issuance costs of $43.0 and $57.9 in 2023

and 2022, respectively

Operating lease liabilities
Deferred income taxes
Other noncurrent liabilities

Total liabilities

Commitments and contingencies (Note 15)
Stockholders’ Equity:

Preferred stock, $.01 par value; 20,000,000 shares authorized, no shares issued or

outstanding

Preferred stock, Series A, $.01 par value; 25,000 shares authorized, 21,612 shares issued

and outstanding in 2023 and 2022, respectively

Common stock, $.01 par value; 210,000,000 shares authorized, 69,278,677 and 68,535,704

shares issued and 50,897,122 and 50,759,482 shares outstanding in 2023 and 2022,
respectively

Class B nonvoting convertible common stock, $.01 par value; 20,000,000 shares

authorized, 4,339,431 issued and no shares outstanding in 2023 and 2022, respectively

Additional capital
Retained earnings
Treasury stock, at cost; 22,720,986 and 22,115,653 shares in 2023 and 2022, respectively
Accumulated other comprehensive loss

Total WESCO International, Inc. stockholders' equity
Noncontrolling interests

Total stockholders’ equity
Total liabilities and stockholders’ equity

3,639.5
430.5
3,572.1
225.4
8,391.6
423.6
761.2
1,857.6
3,262.3
42.3
322.3
15,060.9

2,431.5
191.7
8.6
756.6
3,388.4

5,313.1
641.7
451.9
233.9
10,029.0

$

$

$

3,662.7
435.7
3,498.8
206.0
8,330.5
402.7
625.1
1,943.4
3,240.9
34.2
234.9
14,811.7

2,728.2
269.1
70.5
749.6
3,817.3

5,346.0
510.4
460.7
227.6
10,362.1

— $

—

0.7

—

—

0.7

—
2,037.1
4,391.7
(1,060.4)
(332.0)
5,037.1
(5.2)
5,031.9
15,060.9

$

—
2,005.4
3,795.0
(969.2)
(377.8)
4,454.2
(4.7)
4,449.6
14,811.7

$

$

$

$

$

The accompanying notes are an integral part of the consolidated financial statements.

47

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

Net sales
Cost of goods sold (excluding depreciation and amortization)
Selling, general and administrative expenses
Depreciation and amortization

Income from operations

Interest expense, net
Other expense (income), net (Note 13)

Income before income taxes

Provision for income taxes

Net income

Less: Net income attributable to noncontrolling interests
Net income attributable to WESCO International, Inc.

Less: Preferred stock dividends

Net income attributable to common stockholders

Earnings per share attributable to common stockholders

Basic

Diluted

Other comprehensive income (loss):

Foreign currency translation adjustments and other
Post-retirement benefit plan adjustments, net of tax

Comprehensive income attributable to common stockholders

Year Ended December 31,

2023

2022

2021

(In millions, except per share data)

$

$

$

$

$

22,385.2
17,541.5
3,256.0
181.3
1,406.4
389.3
25.1
992.0
225.9
766.1
0.6
765.5
57.4
708.1

13.86

13.54

57.1
(11.3)
753.9

$

$

$

$

$

21,420.1
16,758.8
3,044.2
179.0
1,438.1
294.4
7.0
1,136.7
274.5
862.1
1.7
860.5
57.4
803.1

15.83

15.33

(127.0)
(14.7)
661.3

$

$

$

$

$

18,217.5
14,425.4
2,791.6
198.6
801.9
268.1
(48.1)
581.9
115.5
466.4
1.0
465.4
57.4
408.0

8.11

7.84

(15.6)
42.7
435.1

The accompanying notes are an integral part of the consolidated financial statements.

48

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B

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

Operating Activities:
Net income
Adjustments to reconcile net income to net cash provided by operating activities:

Depreciation and amortization
Stock-based compensation expense
Amortization of debt discount and debt issuance costs
Gain on curtailment of defined benefit pension plans
Gain on divestitures, net
Other operating activities, net
Deferred income taxes
Changes in assets and liabilities:
Trade accounts receivable, net
Other accounts receivable
Inventories
Other current and noncurrent assets
Accounts payable
Accrued payroll and benefit costs
Other current and noncurrent liabilities

Net cash provided by operating activities

Investing Activities:
Capital expenditures
Acquisition payments, net of cash acquired
Proceeds from divestitures
Proceeds from sale of property, buildings and equipment
Other investing activities, net

Net cash (used in) provided by investing activities

Financing Activities:
Proceeds from issuance of short-term debt
Repayments of short-term debt
Repayment of 5.50% Anixter Senior Notes due 2023 (Note 9)
Repayment of 5.375% Senior Notes due 2021
Repayment of 5.375% Senior Notes due 2024
Proceeds from issuance of long-term debt
Repayments of long-term debt
Payments for taxes related to net-share settlement of equity awards
Repurchases of common stock
Payment of common stock dividends
Payment of preferred stock dividends
Payment of dividends to noncontrolling interests
Other financing activities, net

Net cash (used in) provided by financing activities

Effect of exchange rate changes on cash and cash equivalents

Net change in cash and cash equivalents

Cash and cash equivalents at the beginning of period
Cash and cash equivalents at the end of period

Supplemental disclosures:
Cash paid for interest
Cash paid for taxes

2023

Year Ended December 31,
2022
(In millions)

2021

$

766.1

$

862.1

$

466.4

181.3
48.1
14.8
—
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(0.5)
(7.9)

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(68.4)
(60.6)
(319.7)
(92.3)
(23.5)
493.2

(92.3)
—
—
0.6
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17.1
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(58.6)
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3,290.2
(3,346.0)
(68.3)
(75.0)
(76.6)
(57.4)
(1.1)
(5.5)
(403.9)
(2.9)
(3.2)
527.3
524.1

386.8
207.9

$

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179.0
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(690.6)
(54.8)
(817.0)
(153.2)
552.9
(63.1)
131.6
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(186.8)
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(57.4)
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584.0
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314.8
212.6
527.3

272.4
292.9

$

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198.6
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7.4
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(136.7)
(530.7)
(56.3)
449.6
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56.0
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3,231.4
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(310.8)
4.6
(236.6)
449.1
212.6

249.7
118.2

$

$
$

The accompanying notes are an integral part of the consolidated financial statements.

50

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. ORGANIZATION

WESCO International, Inc. (“Wesco International”) and its subsidiaries (collectively, “Wesco” or the “Company”),
headquartered in Pittsburgh, Pennsylvania, is a leading provider of business-to-business distribution, logistics services and supply
chain solutions.

The Company has operating segments comprising three strategic business units consisting of Electrical & Electronic Solutions
(“EES”), Communications & Security Solutions (“CSS”) and Utility &Br oadband Solutions (“UBS”). The Company's operating
segments are described further in Note 16, “Business Segments”.

2. ACCOUNTING POLICIES

Basis of Presentation

The consolidated financial statements include the accounts of Wesco International and all of its subsidiaries. All intercompany

accounts and transactions have been eliminated in consolidation.

In the first quarter of the fiscal year ended December 31, 2023, we changed our presentation in tables from thousands to
millions. Certain amounts as of December 31, 2023 and 2022 and for the years ended December 31, 2023, 2022 and 2021 in the
consolidated financial statements and associated notes may not foot or recalculate due to rounding.

Reclassifications

The Consolidated Statements of Cash Flows and the reconciliation between the federal statutory income tax rate and the
effective tax rate in Note 11, “Income Taxes” for the years ended December 31, 2022 and 2021, respectively, include certain
reclassifications to previously reported amounts to conform to the current period's presentation. Such reclassifications had no
impact on the totals of operating, investing and financing cash flow activities or the effective tax rates for those years.

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles in the United States of
America requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial
statements and accompanying notes. Although these estimates are based on management’s best knowledge of current events and
actions Wesco may undertake in the future, actual results may ultimately differ from the estimates.

Revenue Recognition

Wesco’s revenue arrangements generally consist of single performance obligations to transfer a promised good or service, or
a combination of goods and services. Revenue is measured as the amount of consideration Wesco expects to receive in exchange
for transferring goods or providing services. Revenue is recognized when control has transferred to the customer, which is
generally when the product has shipped from a Wesco facility or directly from a supplier. However, transfer may occur at ala ter
date depending on the agreed upon terms, such as delivery at the customer's designated location, or based on consignment terms.
For products that ship directly from suppliers to customers, Wesco generally acts as the principal in the transaction and recognizes
revenue on a gross basis. When providing services, sales are recognized over time as control transfers to the customer, which
occurs as services are rendered. Wesco generally satisfies its performance obligations within a year or less.

Wesco generally does not have significant financing terms associated with its contractual arrangements; payments are
normally received within 60 days. There are generally no significant costs associated with obtaining customer contracts. Wesco
typically passes through warranties offered by manufacturers or suppliers to its customers. Sales taxes (and value added taxes in
foreign jurisdictions) collected from customers and remitted to governmental authorities are excluded from net sales.

Supplier Volume Rebates

Wesco receives volume rebates from certain suppliers based on contractual arrangements with such suppliers. Volume rebates
are included within other receivables in the Consolidated Balance Sheets, and represent the estimated amounts due to Wesco
based on forecasted purchases and the rebate provisions of the various supplier contracts. The corresponding rebate income is

51

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

recorded as a reduction to cost of goods sold. Receivables under the supplier rebate program were $233.1 million at December 31,
2023 and $246.2 million at December 31, 2022. Supplier volume rebate income as a percentage of net sales was 1.4% in 2023,
1.6% in 2022 and 1.4% in 2021.

Supplier Finance Programs

The Company has supplier finance programs that are administered by intermediaries. Under these arrangements, participating
suppliers may elect to receive early payment of invoices that have been confirmed by the Company, less an interest deduction or
fees paid by the supplier, which is paid to the supplier by third-party finance providers. Wesco agrees to pay the stated amount of
confirmed invoices in full on the original due date of the invoices, which is typically within 45 to 180 days of the invoice date,
regardless of whether the supplier elects to receive early payment from the third-party finance providers. The Company does not
provide assets pledged as security or other forms of guarantees to the finance providers or intermediaries under these
arrangements. As of December 31, 2023 and 2022, the amounts due to suppliers that participate in the Company's supplier finance
programs were approximately $32.6 million and $30.7 million, respectively, which are included in accounts payable in the
Consolidated Balance Sheets.

Cash and Cash Equivalents

Cash equivalents are defined as highly liquid investments with original maturities of 90 days or less when purchased. Cash
and cash equivalents in the Consolidated Balance Sheets include $21.9 million and $21.2 million as of December 31, 2023 and
2022, respectively, that is restricted from use to fund operations.

Allowance for Expected Credit Losses

Wesco recognizes expected credit losses resulting from the inability of its customers to make required payments through an
allowance account that is measured each reporting period. Wesco estimates credit losses over the life of its trade accounts
receivable using a combination of historical loss data, current credit conditions, specific customer circumstances, and reasonable
and supportable forecasts of future economic conditions. The allowance for expected credit losses was $55.9 million at
December 31, 2023 and $46.5 million at December 31, 2022. The total amount recorded as selling, general and administrative
expense related to credit losses was $18.6 million, $18.0 million and $12.9 million for 2023, 2022 and 2021, respectively.

Inventories

Inventories primarily consist of merchandise purchased for resale and are stated at the lower of cost or net realizable value.
Cost is determined principally under the average cost method. Wesco reduces the carrying value of its inventories at the earlier
of identifying an item that is considered to be obsolete or in excess of supply relative to demand, or no movement in a prescribed
number of months. The carrying value of inventories reflect reductions for excess and obsolescence of $113.4 million and $70.0
million at December 31, 2023 and 2022, respectively. The total expense related to excess and obsolete inventories, which is
included in cost of goods sold, was $63.1 million, $43.2 million and $37.1 million for 2023, 2022 and 2021, respectively.

Property, Buildings and Equipment

Property, buildings and equipment are recorded at cost. Depreciation expense is determined using the straight-line method
over the estimated useful lives of the assets. Leasehold improvements are amortized over either their respective lease terms or
their estimated lives, whichever is shorter. Estimated useful lives range from five to forty years for buildings and leasehold
improvements and three to eight years for furniture, fixtures and equipment.

Costs incurred during the application development stage of internally developed software are capitalized and are reported at
the lower of unamortized cost or net realizable value. Costs incurred during the preliminary project and post-implementation
stages are expensed as incurred. Capitalized costs include external direct costs of materials and services consumed in developing
internal-use computer software, payroll and payroll-related costs for employees who are directly associated with and who devote
time to the internal-use computer software project, as well as interest costs. Internal-use computer software is amortized using
the straight-line method over its estimated useful life, typically three to seven years.

52

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Expenditures for new facilities and improvements that extend the useful life of an asset are capitalized. Ordinary repairs and
maintenance are expensed as incurred. When property is retired or otherwise disposed, the cost and the related accumulated
depreciation are removed from the accounts and any resulting gains or losses are recorded and reported as selling, general and
administrative expenses.

Of Wesco’s $423.6 million net book value of property, buildings and equipment as of December 31, 2023, $152.8 million
consists of land, buildings and leasehold improvements that are geographically dispersed among Wesco’s nearly 800 branches,
warehouses and sales offices, mitigating the risk of impairment. Wesco assesses its long-lived assets for impairment whenever
events or changes in circumstances indicate that the carrying amount of any such assets may not be fully recoverable. Changes
in circumstances include, among others, technological advances, changes in the business model, capital structure, economic
conditions or operating performance. The evaluation is based upon, among other things, utilization, serviceability and
assumptions developed by management, which are categorized as Level 3 of the fair value hierarchy, related to the estimated
future undiscounted cash flows that these assets are expected to generate. When the sum of the undiscounted cash flows is less
than the carrying value of the asset (asset group), an impairment loss is recognized to the extent that carrying value exceeds fair
value. Management applies its best judgment when performing these evaluations.

Leases

The determination of whether an arrangement is, or contains, alease i s performed at the inception of the arrangement.
Classification and initial measurement of the right-of-use asset and lease liability are determined at the lease commencement date.
The Company has elected the short-term lease measurement and recognition exemption; therefore, leases with an initial term of
twelve months or less are not recorded on the balance sheet. Operating lease expense is recognized on a straight-line basis over
the lease term.

Operating lease assets and liabilities are recognized at the commencement date based on the present value of the future
minimum lease payments. Certain leases contain rent escalation clauses that are either fixed or adjusted periodically for inflation
or market rates and such clauses are factored into the Company's determination of lease payments. Wesco also has variable lease
payments that do not depend on a rate or index, primarily for items such as common area maintenance and real estate taxes, which
are recorded as variable expense when incurred. The operating lease asset includes advance payments and excludes incentives
and initial direct costs incurred.

The Company's arrangements include certain non-lease components such as common area and other maintenance for leased
real estate, as well as mileage, fuel and maintenance costs related to leased automobiles and trucks. Wesco accounts for these
non-lease components separately from the associated lease components. The Company does not guarantee any residual value in
its lease agreements, and there are no material restrictions or covenants imposed by lease arrangements. Real estate leases
typically include one or more options to extend the lease, or terminate early. The Company regularly evaluates the renewal
options, and when they are reasonably certain of exercise, the Company includes the renewal period in its lease term. For most
of Wesco’s leases, the discount rate implicit in the lease is not readily determinable. Accordingly, the Company uses its
incremental borrowing rate on a secured basis based on the information available at the lease commencement date to discount
lease payments to the present value.

53

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Goodwill and Indefinite-Lived Intangible Assets

Goodwill and indefinite-lived intangible assets are tested for impairment annually as of October 1, or more frequently if
triggering events occur, indicating that their carrying value may not be recoverable. Wesco tests for goodwill impairment on a
reporting unit level. The Company first assesses qualitative factors, including macroeconomic conditions, industry and market
considerations, cost factors, overall financial performance, other relevant events such as changes in key personnel, changes in the
composition or carrying amount of the net assets of a reporting unit, and changes in share price, to determine whether it is more
likely than not that the fair value of Wesco's reporting units are less than their carrying values. If the qualitative assessment
indicates that the fair values of the Company's reporting units may not exceed their respective carrying values, then Wesco
performs aqua ntitative test for impairment by comparing the fair value of each reporting unit to its carrying value. The Company
determines the fair values of its reporting units using a discounted cash flow analysis and consideration of market multiples. The
discounted cash flow analysis uses certain assumptions, including expected operating margins supported by a combination of
historical results, current forecasts, market data and recent economic events, which are categorized within Level 3 of the fair
value hierarchy. The Company uses a discount rate that reflects market participants' cost of capital. Wesco evaluates the
recoverability of indefinite-lived intangible assets using the relief-from-royalty method based on projected financial information.
Significant inputs used in the relief-from-royalty method include projected revenues, discount rates, royalty rates, and applicable
income tax rates. At December 31, 2023 and 2022, goodwill and indefinite-lived trademarks totaled $4.1 billion and $4.0 billion,
respectively.

The determination of fair value involves significant management judgment, particularly as it relates to the underlying
assumptions and factors around future expected operating margins and discount rate. Management applies its best judgment when
assessing the reasonableness of financial projections. Fair values are sensitive to changes in underlying assumptions and factors.
As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual goodwill and indefinite-
lived intangible impairment tests will prove to be an accurate prediction of future results.

Definite-Lived Intangible Assets

Definite-lived intangible assets are amortized over 5 to 20 years. Certain customer relationships are amortized using an
accelerated method whereas all other definite-lived intangible assets subject to amortization use a straight-line method. In either
case, the amortization method reflects the pattern in which the economic benefits of the respective assets are consumed or
otherwise used. Wesco continually evaluates whether events or circumstances have occurred that would indicate the remaining
estimated useful lives of definite-lived intangible assets require revision or that the remaining carrying value of such assets may
not be recoverable.

Cloud Computing Arrangements

The Company capitalizes costs associated with implementing its various cloud computing arrangements. Capitalized
implementation costs, which are recorded as a component of other assets in the Consolidated Balance Sheets, were $195.4 million
and $104.1 million as of December 31, 2023 and 2022, respectively, and the related accumulated amortization was $15.5 million
and $6.1 million, respectively.

Insurance Programs

Wesco uses commercial insurance for auto, workers’ compensation, casualty and health claims, and information technology
as a risk-reduction strategy to minimize catastrophic losses. The Company’s strategy involves large deductible policies where
Wesco must pay all costs up to the deductible amount. Wesco estimates the reserve for these programs based on historical incident
rates and costs. The assumptions included in developing this accrual include the period of time between the incurrence and
payment of a claim. The total liability related to insurance programs was $28.1 million and $28.0 million at December 31, 2023
and 2022, respectively.

Income Taxes

Wesco accounts for income taxes under the asset and liability method, which requires the recognition of deferred income taxes
for events that have future tax consequences. Under this method, deferred income taxes are recognized (using enacted tax laws
and rates) based on the future income tax effects of differences in the carrying amounts of assets and liabilities for financial

54

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

reporting and tax purposes. The effect of a tax rate change on deferred tax assets and liabilities is recognized in income in the
period of change.

Wesco recognizes deferred tax assets consistent with amounts expected to be realized. To make such determination,
management evaluates all positive and negative evidence, including but not limited to, prior, current and future taxable income,
tax planning strategies and future reversals of existing taxable temporary differences. A valuation allowance is recognized if it is
“more-likely-than-not” that some or all of a deferred tax asset will not be realized. Wesco regularly assesses the realizability of
deferred tax assets.

Wesco accounts for uncertainty in income taxes using a “more-likely-than-not” recognition threshold. Due to the subjectivity
inherent in the evaluation of uncertain tax positions, the tax benefit ultimately recognized may materially differ from the estimate
recognized in the consolidated financial statements. Wesco recognizes interest and penalties related to uncertain tax benefits as
part of interest expense and income tax expense, respectively.

The Tax Cuts and Jobs Act of 2017 (the “TCJA”) imposed a one-time tax on the deemed repatriation of undistributed foreign
earnings (the “transition tax”). Except for a portion of foreign earnings previously taxed in the U.S. that can effectively be
distributed without further material U.S. or foreign taxation, the Company continues to assert that the undistributed earnings of
its foreign subsidiaries are indefinitely reinvested. To the extent the earnings of the Company's foreign subsidiaries are distributed
in the form of dividends, such earnings may be subject to additional taxes. The Company believes that it is able to maintain a
sufficient level of liquidity for its domestic operations and commitments without incurring any material tax cost to repatriate cash
held by its foreign subsidiaries.

The provisions of the TCJA also introduced U.S. taxation on certain global intangible low-taxed income (“GILTI”). Wesco

has elected to account for GILTI tax as a component of income tax expense.

Foreign Currency

The functional currency for most of the Company's operations outside the U.S. is generally the applicable local currency.
Assets and liabilities of these operations are translated to U.S. dollars at the exchange rate in effect at the end of each period.
Income statement accounts are translated at an exchange rate that approximates the average for the period. Translation adjustments
arising from the use of differing exchange rates from period to period are included as a component of other comprehensive income
(loss) within stockholders’ equity. Gains and losses from foreign currency transactions are included in net income for the period.
The Company may re-evaluate the functional currencies of certain operations outside the U.S. if there are significant changes to
operations that indicate that a change in functional currency may be necessary.

Defined Benefit Pension Plans

Liabilities and expenses for defined benefit pension plans are determined using actuarial methodologies and incorporate
significant assumptions, including the interest rate used to discount the future estimated cash flows, the expected long-term rate
of return on plan assets, and several assumptions relating to the employee workforce (salary increases, retirement age, and
mortality). Unrealized gains and losses related to the Company's defined benefit pension obligations are recognized as a
component of other comprehensive income (loss) within stockholders' equity. Gains or losses resulting from plan amendments,
curtailments, and settlements are recognized as a component of other non-operating income and expenses (“other expense
(income), net”) in the period of the remeasurement.

Fair Value of Financial Instruments

The Company measures the fair value of assets and liabilities on a recurring and nonrecurring basis according to a fair value
hierarchy that prioritizes the inputs to valuation techniques used to measure fair value and requires an entity to maximize the use
of observable inputs and minimize the use of unobservable inputs. The three levels of the fair value hierarchy are as follows:
Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that are accessible at the
measurement date; Level 2 inputs include inputs other than Level 1 that are observable, either directly or indirectly, and Level 3
inputs are unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own
assumptions. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities
(Level 1) and the lowest priority to measurements involving significant unobservable inputs (Level 3).

55

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The Company measures the fair values of goodwill, intangible assets and property, buildings and equipment on a nonrecurring

basis if required by impairment tests applicable to these assets, as described above.

Other, net

Other non-operating income and expenses (“other expense (income), net”) primarily includes the non-service cost components

of net periodic pension cost (benefit) and foreign exchange gains and losses.

Recently Adopted and Recently Issued Accounting Standards

In September 2022, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”)
2022-04, Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations, which requires
that a buyer in a supplier finance program disclose sufficient information about the program to allow aus er of financial statements
to understand the program's nature, activity during the period, changes from period to period, and potential magnitude. The
amendments in this ASU are effective for fiscal years beginning after December 15, 2022, including interim periods within those
fiscal years, except for the amendment on rollforward information, which is effective for fiscal years beginning after December
15, 2023. The Company adopted this ASU in the first quarter of 2023, except for the amendment on rollforward information,
which the Company will begin disclosing in its Annual Report on Form 10-K for the fiscal year ending December 31, 2024. The
adoption of this ASU resulted in additional disclosure of the Company's supplier finance programs.

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment
Disclosures, which enhances prior reportable segment disclosure requirements in part by requiring entities to disclose significant
expenses related to their reportable segments. The amendments in this ASU are effective on a retrospective basis for annual
periods beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024.
Management is currently evaluating the impact that this accounting standard will have on its consolidated financial statements
and notes thereto.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures,
which requires disaggregated information about a reporting entity's effective tax rate reconciliation as well as information on
income taxes paid to enhance the transparency and decision usefulness of income tax disclosures. The amendments in this ASU
are effective for annual periods beginning after December 15, 2024 on a prospective basis. Management is currently evaluating
the impact that this accounting standard will have on its consolidated financial statements and notes thereto.

Other pronouncements issued by the FASB or other authoritative accounting standards groups with future effective dates are

either not applicable or are not expected to be significant to Wesco’s financial position, results of operations or cash flows.

3. REVENUE

Wesco distributes products and provides services to customers globally in various end markets within its business segments.

The segments, which consist of EES, CSS and UBS operate in the United States, Canada and various other countries.

The following tables disaggregate Wesco’s net sales by segment and geography for the periods presented:

(In millions)

Electrical & Electronic Solutions

Communications & Security Solutions
Utility & Broadband Solutions

Total by segment

Year Ended December 31,

2023

2022

2021

$

$

8,610.3

$

8,823.3

$

7,152.2
6,622.7
22,385.2

$

6,401.5
6,195.3
21,420.1

$

7,621.3

5,715.2
4,881.0
18,217.5

56

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(In millions)

United States
Canada
Other International(1)

Total by geography(2)

Year Ended December 31,

2023

2022

2021

$

$

16,609.1
2,968.2
2,807.9
22,385.2

$

$

15,857.3
3,021.4
2,541.4
21,420.1

$

$

13,157.9
2,747.2
2,312.5
18,217.5

(1) No individual country's net sales are greater than 10% of total net sales.

(2) Wesco attributes revenues from external customers to individual countries on the basis of point of sale.

Due to the terms of certain contractual arrangements, Wesco bills or receives payment from its customers in advance of
satisfying the respective performance obligation. Such advance billings or payments are recorded as deferred revenue and
recognized as revenue when the performance obligation has been satisfied and control has transferred to the customer, which is
generally upon shipment. Deferred revenue is usually recognized within a year or less from the date of the advance billing or
payment. At December 31, 2023 and 2022, $111.9 million and $99.6 million, respectively, of deferred revenue was recorded as a
component of other current liabilities in the Consolidated Balance Sheets. The Company recognized $74.0 million of revenue
during 2023 that was included in the deferred revenue balance as of December 31, 2022. The amount of revenue recognized
during 2022 and 2021 that was deferred as of December 31, 2021 and 2020, respectively, was not material.

The Company also has certain long-term contractual arrangements where revenue is recognized over time based on the cost-
to-cost input method. As of December 31, 2023 and 2022, the Company had contract assets of $35.4 million and $27.5 million,
respectively, resulting from contracts where the amount of revenue recognized exceeded the amount billed to the customer.
Contract assets are recorded in the Consolidated Balance Sheets as aco mponent of prepaid expenses and other current assets.

Wesco’s revenues are adjusted for variable consideration, which includes customer volume rebates, returns and discounts.
Wesco measures variable consideration by estimating expected outcomes using analysis and inputs based upon historical data, as
well as current and forecasted information. Variable consideration is reviewed by management on a monthly basis and revenue is
adjusted as necessary. Variable consideration reduced revenue for the years ended December 31, 2023, 2022 and 2021 by
approximately $427.8 million, $417.1 million and $360.6 million, respectively. As of December 31, 2023 and 2022, the
Company's estimated product return obligation was $41.3 million and $46.5 million, respectively.

Billings to customers for shipping and handling are recognized in net sales. Wesco has elected to recognize shipping and
handling costs as a fulfillment cost. Shipping and handling costs recorded as a component of selling, general and administrative
expenses totaled $306.8 million, $302.3 million and $248.3 million for the years ended December 31, 2023, 2022 and 2021,
respectively.

4. FAIR VALUE OF FINANCIAL INSTRUMENTS

The Company’s financial instruments primarily consist of cash and cash equivalents, accounts receivable, accounts payable,
bank overdrafts, outstanding indebtedness, foreign currency forward contracts, and benefit plan assets. The fair value of the
Company's benefit plan assets is disclosed in Note 13, “Employee Benefit Plans” and except for outstanding indebtedness and
foreign currency forward contracts, the carrying value of the Company’s remaining financial instruments approximates fair value.

The Company uses a market approach to determine the fair value of its debt instruments, utilizing quoted prices in active
markets, interest rates and other relevant information generated by market transactions involving similar instruments. Therefore,
the inputs used to measure the fair value of the Company's debt instruments are classified as Level 2 within the fair value
hierarchy.

The carrying value of Wesco's debt instruments with fixed interest rates was $2,823.7 million and $2,881.2 million as of
December 31, 2023 and 2022, respectively. The estimated fair value of this debt was $2,880.3 million and $2,929.5 million as of
December 31, 2023 and 2022, respectively. The reported carrying values of Wesco's other debt instruments, including those with
variable interest rates, approximated their fair values as of December 31, 2023 and 2022.

57

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The Company purchases foreign currency forward contracts to reduce the effect of fluctuations in foreign currency-
denominated accounts on its earnings. The foreign currency forward contracts are not designated as hedges for accounting
purposes. The Company's strategy is to negotiate terms for its derivatives and other financial instruments to be highly effective,
such that the change in the value of the derivative offsets the impact of the underlying hedge. Its counterparties to foreign currency
forward contracts have investment-grade credit ratings. The Company regularly monitors the creditworthiness of its
counterparties to ensure no issues exist that could affect the value of its derivatives.

The Company does not hedge 100% of its foreign currency-denominated accounts. In addition, the results of hedging can vary
significantly based on various factors, such as the timing of executing foreign currency forward contracts versus the movement
of currencies, as well as fluctuations in the account balances throughout each reporting period. The fair value of foreign currency
forward contracts is based on the difference between the contract rate and the current price of a forward contract with an equivalent
remaining term. The fair value of foreign currency forward contracts is measured using observable market information. These
inputs are considered Level 2 in the fair value hierarchy. At December 31, 2023 and 2022, foreign currency forward contracts
were revalued at then-current foreign exchange rates with the changes in valuation reflected directly in other non-operating
expense (income) in the Consolidated Statements of Income and Comprehensive Income offsetting the transaction gain (loss)
recorded on foreign currency-denominated accounts. At December 31, 2023 and 2022, the gross and net notional amounts of
foreign currency forward contracts outstanding were approximately $168.4 million and $172.8 million, respectively. While all of
the Company's foreign currency forward contracts are subject to master netting arrangements with its counterparties, assets and
liabilities related to these contracts are presented on a gross basis within the Consolidated Balance Sheets. The gross fair value of
assets and liabilities related to foreign currency forward contracts were immaterial.

5. GOODWILL AND INTANGIBLE ASSETS

The following table sets forth the changes in the carrying value of goodwill by reportable segment for the periods presented:

(In millions)
Balance as of December 31, 2021

Adjustments to goodwill for acquisitions(1)
Foreign currency exchange rate changes

Balance as of December 31, 2022

Adjustments to goodwill for acquisitions(1)

Foreign currency exchange rate changes

Balance as of December 31, 2023

EES

CSS

UBS

Total

$

$

$

861.0 $
—
(35.5)
825.5 $
—

12.6
838.1 $

1,121.7 $
97.4
(10.2)
1,208.9 $
0.9

1.8
1,211.6 $

1,225.7
—
(19.1)
1,206.5
—

6.1
1,212.6

$

$

$

3,208.3
97.4
(64.8)
3,240.9
0.9

20.5
3,262.3

(1) Adjustments to goodwill reflect the preliminary allocation of the purchase price paid to acquire Rahi Systems, which is part of the CSS
segment, and adjustments to the assets acquired and liabilities assumed since their initial measurement, as disclosed in Note 6, “Acquisitions
and Disposals”.

The components of intangible assets are as follows:

December 31, 2023

December 31, 2022

Life (in years)

Gross
Carrying

Amount (1)

Accumulated

Amortization
(1)

Net
Carrying
Amount

Gross
Carrying

Amount (1)

Accumulated

Amortization
(1)

Net
Carrying
Amount

(In millions)

Intangible assets:
Trademarks
Customer relationships
Distribution agreements
Trademarks

Indefinite
10 - 20
15 and 19
5 and 12

$

$

793.0
1,519.9
29.2
15.5
2,357.6

$

$

— $

(464.4)
(26.0)
(9.6)
(500.0) $

793.0
1,055.5
3.2
5.9
1,857.6

$

792.1
1,516.0
29.2
15.5
$ 2,352.8

$

$

58

— $

792.1
1,138.3
4.8
8.1
(409.4) $ 1,943.4

(377.6)
(24.4)
(7.4)

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(1) Excludes the original cost and related accumulated amortization of fully-amortized intangible assets.

Amortization expense related to intangible assets totaled $88.6 million, $92.9 million and $119.6 million for the years ended

December 31, 2023, 2022 and 2021, respectively.

The following table sets forth the remaining estimated amortization expense for intangible assets for the next five years and

thereafter:

For the year ending December 31,

(In millions)

2024
2025
2026
2027
2028
Thereafter

$

86.3
83.2
77.8
74.9
73.2
669.2

The Company performed its annual impairment tests of goodwill and indefinite-lived intangible assets during the fourth
quarter of 2023 by assessing qualitative factors to determine whether it was more likely than not that the fair values of its reporting
units and indefinite-lived intangible assets were less than their respective carrying amounts. In performing this qualitative
assessment, the Company assessed relevant events and circumstances, including macroeconomic conditions, industry and market
considerations, cost factors, overall financial performance, other relevant events such as changes in key personnel, changes in the
composition or carrying amount of the net assets of a reporting unit, and changes in share price. As a result of this assessment,
the Company determined that it was more likely than not that the fair values of its reporting units and indefinite-lived intangible
assets continued to exceed their respective carrying amounts and, therefore, aqua ntitative impairment test was not necessary.

The annual impairment tests of goodwill and indefinite-lived intangible assets involve the assessment of factors, events and
circumstances at apoi nt in time that are subject to change. As a result, there can be no assurance that the fair values of the
Company's reporting units and indefinite-lived intangible assets will exceed their carrying values in the future, and that goodwill
and indefinite-lived intangible assets will be fully recoverable.

6. ACQUISITIONS AND DISPOSALS

Rahi Systems Holdings, Inc.

On November 1, 2022, through its wholly-owned subsidiary WESCO Distribution, Inc. (“Wesco Distribution”), the Company
acquired 100% of the equity securities of Rahi Systems Holdings, Inc. (“Rahi Systems” or “Rahi”). Headquartered in Fremont,
California, Rahi Systems is ale ading provider of global hyperscale data center solutions with over 900 employees in 25 countries.
Rahi's expertise with complex information technology projects and global presence strengthen Wesco's data center solution
offerings. Wesco Distribution funded the purchase price paid at closing with cash on hand as well as borrowings under its accounts
receivable securitization and revolving credit facilities.

The total fair value of consideration transferred for the acquisition of Rahi Systems consisted of the following:

Purchase price
Adjustments to purchase price
Total cash consideration

Extinguishment of Rahi Systems obligations

Total purchase consideration

Supplemental cash flow disclosure related to acquisitions:

Cash paid for acquisition
Less: Cash acquired

Cash paid for acquisition, net of cash acquired

$

$

$

$

(In millions)

217.0
25.9
242.9
12.6
255.4

255.4
(68.6)
186.8

59

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The purchase consideration was allocated to the identified assets acquired and liabilities assumed based on their respective
acquisition date fair value, with the excess allocated to goodwill. The Company identified acu stomer relationship intangible asset
and estimated its fair value using an income valuation method. The excess purchase consideration recorded as goodwill is not
deductible for income tax purposes, and has been assigned to the Company's CSS reportable segment, as disclosed in Note 5,
“Goodwill and Intangible Assets”. The resulting goodwill is primarily attributable to Rahi’s workforce and cross-selling
opportunities in additional geographies.

The estimated fair values of assets acquired and liabilities assumed were based on preliminary calculations and valuations
using estimates and assumptions at the time of acquisition. During the fourth quarter of 2023, the Company finalized its allocation
of the purchase consideration to the respective fair values of assets acquired and liabilities assumed in the acquisition of Rahi. As
the Company obtained additional information during the measurement period, it recorded adjustments to its preliminary estimates
of fair value, which were as of November 1, 2022. As presented in the table below, the net impact of these measurement period
adjustments was an increase to goodwill of $0.9 million.

The results of operations of Rahi Systems are included in the consolidated financial statements beginning on November 1,
2022, the acquisition date. For the years ended December 31, 2023 and 2022, the Consolidated Statements of Income and
Comprehensive Income include $543.9 million and $111.5 million of net sales, respectively, and an immaterial amount of income
from operations for Rahi Systems. The Company has not presented supplemental pro forma revenue and earnings of the combined
business as the acquisition of Rahi Systems is not material to Wesco's consolidated financial statements.

60

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth the allocation of the purchase consideration to the respective fair values of assets acquired,

liabilities assumed for the acquisition of Rahi Systems:

Assets
Cash and cash equivalents
Trade accounts receivable
Inventories
Intangible assets(2)
Goodwill
Other current and noncurrent assets
Total assets

Liabilities
Accounts payable
Operating lease liabilities
Deferred income taxes
Other current and noncurrent liabilities
Total liabilities

Fair value of net assets acquired, including goodwill and intangible

Preliminary
Fair Value
Estimates(1)

Measurement
Period
Adjustments

(In millions)

Final Purchase
Price
Allocation(1)

$

$

$

$

$

68.6
52.6
49.4
105.8
97.4
41.1
415.0

58.0
20.1
25.0
56.4
159.5

255.4

$

$

$

$

$

— $
—
19.6
—
0.9
6.4
26.9

$

28.0
—
(7.2)
6.1
26.9

$

$

68.6
52.6
69.0
105.8
98.3
47.5
441.8

86.0
20.1
17.8
62.5
186.4

— $

255.4

(1) The preliminary fair value estimates are as of November 1, 2022. As disclosed above, the Company finalized its purchase price allocation

during the measurement period.

(2) Consists of a customer relationship intangible asset with an estimated weighted-average useful life of 17 years.

Canadian Divestitures

On August 6, 2020, the Company entered into a Consent Agreement with the Competition Bureau of Canada regarding the
merger with Anixter International Inc. (“Anixter”). Under the Consent Agreement, the Company was required to divest certain
legacy Wesco utility and data communications businesses in Canada, which had total net sales of approximately $110 million for
the year ended December 31, 2020. In February 2021, the Company completed such divestitures for cash consideration totaling
$56.0 million. The Company recognized a net gain from the sale of these businesses of $8.9 million, which is reported as a
component of selling, general and administrative expenses for the year ended December 31, 2021. These dispositions fulfilled
the Company’s divestiture commitments under the Consent Agreement and the net cash proceeds were used to repay debt.

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WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

7. PROPERTY, BUILDINGS AND EQUIPMENT

The following table sets forth the components of property, buildings and equipment:

Buildings and leasehold improvements
Furniture, fixtures and equipment
Software costs

Accumulated depreciation and amortization

Land
Construction in progress

Property, buildings and equipment, net

As of December 31,

2023

2022

(In millions)

202.6
359.9
292.6
855.1

(502.5)
352.6

25.0
46.0
423.6

$

$

169.5
304.7
272.6
746.7

(425.8)
320.9

24.6
57.1
402.7

$

$

Depreciation expense was $56.3 million, $47.8 million and $51.4 million, and capitalized software amortization was
$36.4 million, $38.3 million and $27.5 million, in 2023, 2022 and 2021, respectively. As of December 31, 2023 and 2022,
unamortized software costs were $78.2 million and $89.2 million, respectively. Furniture, fixtures and equipment include finance
leases of $51.9 million and $38.8 million and related accumulated depreciation of $19.9 million and $17.1 million as of
December 31, 2023 and 2022, respectively.

8. LEASES

Wesco leases substantially all of its real estate, as well as automobiles, trucks, information technology hardware, and other

equipment under lease arrangements classified as operating.

The Company's finance leases, which are recorded in the Consolidated Balance Sheets as a component of property, buildings
and equipment, current portion of long-term debt and long-term debt, are not material to the consolidated financial statements
and notes thereto. Accordingly, finance leases have not been disclosed herein.

The following table sets forth supplemental balance sheet information related to operating leases for the periods presented:

(In millions)

Operating lease assets

Current operating lease liabilities(1)
Noncurrent operating lease liabilities

Total operating lease liabilities

As of December 31,

2023

2022

761.2

$

625.1

156.7
641.7
798.4

$

129.5
510.4
640.0

$

$

(1) Current operating lease liabilities are recorded as a component of other current liabilities in the Consolidated Balance Sheets.

The following table sets forth the Company's total lease cost, which is recorded as a component of selling, general and

administrative expenses, for the periods presented:

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WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(In millions)

Operating lease cost
Short-term lease cost
Variable lease cost
Total lease cost

Year Ended December 31,

2023

2022

2021

$

$

197.0
8.9
53.2
259.1

$

$

175.8 $
4.8
45.7
226.4 $

169.9
3.6
49.5
222.9

Variable lease cost consists of the non-lease components described in Note 2, “Accounting Policies”, as well as taxes and

insurance for Wesco's leased real estate.

The following table sets forth supplemental cash flow information related to operating leases for the periods presented:

(In millions)

Year Ended December 31,

2023

2022

2021

Operating cash flows from operating leases

$

174.5

$

171.7 $

153.6

Right-of-use assets obtained in exchange for new

operating lease liabilities(1)

296.9

267.1

157.5

(1) The year ended December 31, 2022 includes $20.1 million of operating lease liabilities acquired in the business combination with Rahi

Systems, as disclosed in Note 6, “Acquisitions and Disposals”.

As of December 31, 2023 and 2022, the weighted-average remaining lease term for operating leases was approximately 6
years. The weighted-average discount rate used to measure operating leases was 4.3% and 4.0% as of December 31, 2023 and
2022, respectively.

The following table sets forth the maturities of the Company's operating lease liabilities and reconciles the respective

undiscounted payments to the total operating lease liabilities in the Consolidated Balance Sheet as of December 31, 2023:

2024
2025
2026
2027
2028
Thereafter
Total undiscounted operating lease payments

Less: imputed interest

Total operating lease liabilities

(In millions)

191.2
172.3
146.7
119.0
87.4
188.8
905.4
(107.0)
798.4

$

$

Operating lease payments include $14.1 million related to options to extend real estate lease terms that are reasonably certain
of being exercised. As of December 31, 2023, the Company has additional leases related to facilities that have not yet commenced
totaling $45.7 million. These operating leases, which are not recorded in the Consolidated Balance Sheet as of December 31,
2023, will commence in 2024 with lease terms of 1 to 10 years.

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WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

9. DEBT

The following table sets forth Wesco’s outstanding indebtedness:

International lines of credit
Accounts Receivable Securitization Facility
Revolving Credit Facility
5.50% Anixter Senior Notes due 2023
6.00% Anixter Senior Notes due 2025
7.125% Senior Notes due 2025
7.250% Senior Notes due 2028, less debt discount of $5.6 and $6.8 in 2023 and 2022,
respectively
Finance lease obligations

Total debt

Plus: Fair value adjustments to the Anixter Senior Notes
Less: Unamortized debt issuance costs
Less: Short-term debt and current portion of long-term debt(1)

Total long-term debt

As of December 31,

2023

2022

$

(In millions)
1.0
1,550.0
953.0
—
4.2
1,500.0

1,319.4

31.4
5,359.0
0.1
(37.4)
(8.6)
5,313.1

$

7.1
1,535.0
1,023.6
58.6
4.2
1,500.0

1,318.2

20.6
5,467.3
0.3
(51.1)
(70.5)
5,346.0

$

$

(1) As of December 31, 2022, short-term debt and current portion of long-term debt included the $58.6 million aggregate principal amount of

the Company's 5.50% Anixter Senior Notes due 2023, which matured on March 1, 2023.

International Lines of Credit

Certain foreign subsidiaries of Wesco have entered into uncommitted lines of credit, some of which are overdraft facilities, to
support local operations. The maximum borrowing limit varies by facility and ranges between $0.6 million and $10.0 million.
The international lines of credit generally are renewable on an annual basis and certain facilities are fully and unconditionally
guaranteed by Wesco Distribution. Accordingly, certain borrowings under these lines directly reduce availability under the
Company's revolving credit facility. The applicable interest rate for borrowings under these lines of credit varies by country and
is governed by the applicable loan agreement. The average interest rate for these facilities was 0.85% and 4.84% at December 31,
2023 and 2022, respectively.

Accounts Receivable Securitization Facility

Wesco Distribution has an accounts receivable securitization facility (the “Receivables Facility”) pursuant to the terms and
conditions of a Fifth Amended and Restated Receivables Purchase Agreement (the “Receivables Purchase Agreement”), by and
among WESCO Receivables Corp. (“Wesco Receivables”), Wesco Distribution, the various purchaser groups from time to time
party thereto and PNC Bank, National Association, as Administrator, dated as of June 22, 2020. The Receivables Purchase
Agreement amended and restated the receivables purchase agreement entered into on September 24, 2015 (the “Prior Receivables
Purchase Agreement”).

As of December 31, 2023, the Receivables Facility has apu rchase limit of $1,625 million, with the opportunity to exercise an
accordion feature that permits increases in the purchase limit up to an aggregate commitment of $1,750 million, subject to
customary conditions, and a maturity date of March 1, 2025. The Receivables Facility has an interest rate spread of 1.05% and a
commitment fee of 0.45%.

64

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

As of December 31, 2023 and 2022, accounts receivable eligible for securitization totaled $2,146.9 million and $2,028.2
million, respectively. The Consolidated Balance Sheets as of December 31, 2023 and 2022 include $1,550.0 million and $1,535.0
million, respectively, of senior undivided interests in accounts receivable balances sold to third parties, as well as borrowings for
equal amounts. At December 31, 2023, the interest rate for this facility was approximately 6.23%.

Under the Receivables Facility, Wesco Distribution sells, on a continuous basis, an undivided interest in all domestic accounts
receivable to Wesco Receivables, a wholly-owned special purpose entity (the “SPE”). The SPE sells, without recourse, asenior
undivided interest in the receivables to financial institutions for cash while maintaining a subordinated undivided interest in the
receivables, in the form of overcollateralization. Since Wesco maintains control of the transferred receivables, the transfers do
not qualify for “sale” treatment. As a result, the transferred receivables remain on the Company's balance sheet, and Wesco
recognizes the related secured borrowing. Wesco has agreed to continue servicing the receivables for the third-party conduits and
financial institutions at market rates; accordingly, no servicing asset or liability has been recorded.

On October 31, 2022, Wesco Distribution amended its Receivables Facility pursuant to the terms and conditions of a Sixth
Amendment to Fifth Amended and Restated Receivables Purchase Agreement (the “Sixth Receivables Amendment”). The Sixth
Receivables Amendment amended the Receivables Purchase Agreement to increase its purchase limit from $1,525 million to
$1,625 million. The maturity date, interest rate spread and commitment fee of the Receivables Facility remained unchanged.

On August 2, 2022, Wesco Distribution amended its Receivables Facility pursuant to the terms and conditions of a Fifth
Amendment to Fifth Amended and Restated Receivables Purchase Agreement (the “Fifth Receivables Amendment”). The Fifth
Receivables Amendment amended the Receivables Purchase Agreement to, among other things, increase the purchase limit under
the Receivables Facility from $1,400 million to $1,525 million and to decrease the interest rate spread from 1.10% to 1.05%. The
maturity date and commitment fee of the Receivables Facility remained unchanged.

On March 1, 2022, Wesco Distribution amended its Receivables Facility pursuant to the terms and conditions of a Fourth
Amendment to Fifth Amended and Restated Receivables Purchase Agreement (the “Fourth Receivables Amendment”). The
Fourth Receivables Amendment, among other things, (i) increased the purchase limit under the Receivables Facility from
$1,300 million to $1,400 million, (ii) increased the aggregate commitment under the accordion feature from $1,500 million to
$1,750 million, and (iii) extended the maturity date from June 21, 2024 to March 1, 2025. Additionally, the Fourth Receivables
Amendment replaced the LIBOR interest rate option with Secured Overnight Financing Rate-based (“SOFR”) interest rate
options, including term SOFR and daily simple SOFR, and decreased the interest rate spread from 1.15% to 1.10%. The
commitment fee of the Receivables Facility remained unchanged.

On June 1, 2021, Wesco Distribution amended its Receivables Facility pursuant to the terms and conditions of a Third
Amendment to the Fifth Amended and Restated Receivables Purchase Agreement (the “Third Receivables Amendment”). The
Third Receivables Amendment, among other things, increased the purchase limit under the Receivables Purchase Agreement
from $1,200 million to $1,300 million, increased the aggregate commitment under the accordion feature from $1,400 million to
$1,500 million, extended the maturity date from June 22, 2023 to June 21, 2024, decreased the LIBOR floor from 0.50% to 0.00%
and decreased the interest rate spread from 1.20% to 1.15%. The commitment fee of the Receivables Facility remained unchanged.

On December 14, 2020, Wesco Distribution amended its Receivables Facility pursuant to the terms and conditions of a First
Amendment to the Fifth Amended and Restated Receivables Purchase Agreement (the “First Receivables Amendment”). The
First Receivables Amendment amended the Receivables Purchase Agreement and permitted an increase to the purchase limit
from $1,025 million to $1,200 million. The maturity date, interest rate spread, and commitment fee of the Receivables Facility
remained unchanged.

The Receivables Purchase Agreement, among other things, increased the purchase limit under the Prior Receivables Purchase
Agreement from $600 million to $1,025 million, with the opportunity to exercise an accordion feature that permits increases in
the purchase limit up to an aggregate commitment of $1,400 million, subject to customary conditions, extended the maturity date
to June 22, 2023 and added and amended certain defined terms. Borrowings under the Receivables Facility bear interest at the
30-day LIBOR rate, with a LIBOR floor, plus applicable spreads. The interest rate spread under the Receivables Purchase
Agreement of 1.20% increased from 0.95% under the Prior Receivables Purchase Agreement. The Receivables Facility has a
commitment fee of 0.45%.

65

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Revolving Credit Facility

Wesco, Wesco Distribution and certain other subsidiaries of Wesco entered into a revolving credit facility (the “Revolving
Credit Facility”) as a replacement of Wesco Distribution’s revolving credit facility entered into on September 26, 2019, pursuant
to the terms and conditions of a Fourth Amended and Restated Credit Agreement, dated as of June 22, 2020 (the “Revolving
Credit Agreement”), among Wesco Distribution, the other U.S. borrowers party thereto (collectively, the “U.S. Borrowers”),
WESCO Distribution Canada LP (“Wesco Canada”), the other Canadian borrowers party thereto (collectively, the “Canadian
Borrowers”), Wesco, the lenders party thereto and Barclays Bank PLC, as the administrative agent.

As of December 31, 2023, the Revolving Credit Facility has revolving commitments of $1,725 million, a letter of credit sub-
facility of up to $175 million, an accordion feature allowing Wesco Distribution to request increases to the borrowing
commitments under the Revolving Credit Facility of up to $450 million in the aggregate, subject to customary conditions, and a
sub-facility for loans denominated in Canadian dollars of $625 million. The Revolving Credit Facility has a maturity date of
March 1, 2027 and permits the Company to declare and pay an aggregate amount of common stock dividends of up to $80 million
per year. The applicable interest rate for borrowings under the Revolving Credit Facility, as amended, includes interest rate spreads
based on available borrowing capacity that range from 1.00% to 1.50% for SOFR-based borrowings and from 0.00% to 0.50%
for prime rate-based borrowings. At December 31, 2023, the interest rate for this facility was approximately 6.89%.

During 2023, Wesco borrowed $2,997.2 million under the Revolving Credit Facility and made repayments in the aggregate
amount of $3,067.5 million. During 2022, aggregate borrowings and repayments under the Revolving Credit Facility were
$3,990.0 million and $3,557.1 million, respectively. Wesco had $736.0 million available under the Revolving Credit Facility at
December 31, 2023, after giving effect to outstanding letters of credit and certain borrowings under the Company's international
lines of credit, as compared to $664.9 million available under the Revolving Credit Facility at December 31, 2022, after giving
effect to outstanding letters of credit and certain borrowings under the Company's international lines of credit.

66

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

On October 31, 2022, Wesco Distribution amended its Revolving Credit Facility pursuant to the terms and conditions of a
Fourth Amendment to Fourth Amended and Restated Credit Agreement (the “Fourth Revolver Amendment”). The Fourth
Revolver Amendment amended the Revolving Credit Agreement to, among other things, increase the revolving commitments
from $1,525 million to $1,725 million, increase the sub-facility for loans denominated in Canadian dollars from $600 million to
$625 million, decrease the capacity to request increases in the aggregate revolving commitments from $650 million to
$450 million, and increase the aggregate amount of common stock dividends that the Company may declare and pay from
$50 million per year to $80 million per year. The maturity date and interest rate spreads of the Revolving Credit Facility remained
unchanged.

On August 2, 2022, Wesco Distribution amended its Revolving Credit Facility pursuant to the terms and conditions of a Third
Amendment to Fourth Amended and Restated Credit Agreement (the “Third Revolver Amendment”). The Third Revolver
Amendment amended the Revolving Credit Agreement to, among other things, increase the revolving commitments under the
Revolving Credit Facility from $1,350 million to $1,525 million and to increase the sub-facility for loans denominated in
Canadian dollars from $550 million to $600 million. The maturity date and interest rate spreads of the Revolving Credit Facility
remained unchanged.

On March 1, 2022, Wesco Distribution amended its Revolving Credit Facility pursuant to the terms and conditions of a Second
Amendment to Fourth Amended and Restated Credit Agreement (the “Second Revolver Amendment”). The Second Revolver
Amendment, among other things, (i) increased the revolving commitments under the Revolving Credit Facility from
$1,200 million to $1,350 million, (ii) increased the sub-facility for loans denominated in Canadian dollars from $500 million to
$550 million, (iii) increased the capacity to request increases in the aggregate revolving commitments from $400 million to
$650 million, (iv) modified certain negative covenants to provide for additional flexibility, and (v) extended the maturity date
from June 22, 2025 to March 1, 2027. Additionally, the Second Revolver Amendment replaced the LIBOR-based interest rate
option with SOFR-based interest rate options, including term SOFR and daily simple SOFR.

On December 14, 2020, Wesco Distribution and certain other subsidiaries of Wesco entered into an amendment to the
Revolving Credit Facility pursuant to the terms and conditions of a First Amendment to Fourth Amended and Restated Credit
Agreement, dated as of December 14, 2020 (the “First Revolver Amendment”), among Wesco Distribution, the other U.S.
borrowers party thereto, WESCO Distribution Canada LP, the other Canadian borrowers party thereto, Wesco, the lenders party
thereto and Barclays Bank PLC, as administrative agent. The First Revolver Amendment increased the revolving commitments
from $1,100 million to $1,200 million and amended certain other defined terms. No other material terms were changed.

The obligations of Wesco Distribution and the other U.S. Borrowers under the Revolving Credit Facility have been guaranteed
by Wesco and certain of Wesco Distribution’s subsidiaries (including certain subsidiaries of Anixter). The obligations of Wesco
Canada and the other Canadian Borrowers under the Revolving Credit Facility (including certain subsidiaries of Anixter) have
been guaranteed by certain subsidiaries of Wesco Canada and the other Canadian Borrowers. The Revolving Credit Facility is
secured by (i) substantially all assets of Wesco Distribution, the other U.S. Borrowers and certain of Wesco Distribution’s
subsidiaries (including certain subsidiaries of Anixter), other than, among other things, real property and accounts receivable sold
or intended to be sold pursuant to the Receivables Facility, and (ii) substantially all assets of Wesco Canada, the other Canadian
Borrowers and certain of Wesco Canada’s subsidiaries, other than, among other things, real property, in each case, subject to
customary exceptions and limitations.

The Revolving Credit Agreement requires compliance with conditions that must be satisfied prior to any borrowing as well as
ongoing compliance with certain customary affirmative and negative covenants. The Revolving Credit Agreement contains
customary events of default. Upon the occurrence and during the continuance of an event of default, the commitments of the
lenders may be terminated, and all outstanding obligations of the loan parties under the Revolving Credit Facility may be declared
immediately due and payable.

67

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

5.50% Senior Notes due 2023
6.00% Senior Notes due 2025

On April 30, 2020, in connection with the merger with Anixter, Wesco Distribution commenced offers to purchase for cash
(each, a “Wesco Tender Offer” and, together the “Wesco Tender Offers”) any and all of Anixter Inc.’s outstanding (i) 5.50%
Senior Notes due 2023 (the “Anixter 2023 Senior Notes”), $350.0 million aggregate principal amount, issued under the Indenture,
dated as of August 18, 2015 (the “Anixter 2023 Indenture”), by and among Anixter Inc., Anixter and Wells Fargo Bank, National
Association, as trustee, and (ii) 6.00% Senior Notes due 2025 (the “Anixter 2025 Senior Notes” and, together with the Anixter
2023 Senior Notes, the “Anixter Senior Notes”), $250.0 million aggregate principal amount, issued under the Indenture, dated as
of November 13, 2018 (the “Anixter 2025 Indenture” and, together with the Anixter 2023 Indenture, the “Anixter Indentures”)
by and among Anixter Inc., Anixter and Wells Fargo Bank, National Association, as trustee. The Anixter 2023 Senior Notes
matured on March 1, 2023, on which date Wesco Distribution repaid the $58.6 million aggregate principal amount of its Anixter
2023 Senior Notes plus accrued interest up to, but not including, the maturity date. The repayment was funded with borrowings
under the Company's Revolving Credit Facility and had no impact on the Company's results of operations. The Anixter 2025
Senior Notes will mature on December 1, 2025.

Concurrent with the Wesco Tender Offers, Anixter Inc. commenced consent solicitations to amend the definition of “Change
of Control” under the applicable Indenture to exclude the merger with Anixter and related transactions and expressly permit a
merger between Anixter Inc. and Anixter (the “Anixter Consent Solicitations”).

On June 23, 2020 (the “Expiration Date”), following the completion of the merger with Anixter, the Wesco Tender Offers and
Anixter Consent Solicitations expired and settled. Pursuant to the terms of the Offer to Purchase and Consent Solicitation
Statement, dated April 30, 2020, holders of the Anixter Senior Notes that validly tendered and did not validly withdraw prior to
such date, received total tender offer consideration of $1,012.50 per $1,000 principal amount of Anixter Senior Notes, which
amount, in each case, included an early tender payment of $50.00 per $1,000 principal amount of Anixter Senior Notes. Holders
who validly delivered their consents at or prior to the Expiration Date received aco nsent fee of $2.50 per $1,000 principal amount
of Anixter Senior Notes.

7.125% Senior Notes due 2025
7.250% Senior Notes due 2028

On June 12, 2020, Wesco Distribution issued $1,500 million aggregate principal amount of 7.125% Senior Notes due 2025
(the “2025 Notes”) and $1,325 million aggregate principal amount of 7.250% Senior Notes due 2028 (the “2028 Notes” and,
together with the 2025 Notes, the “Notes”). The 2025 Notes were issued at a price of 100.000% of the aggregate principal amount.
The 2028 Notes were issued at a price of 99.244% of the aggregate principal amount. Wesco incurred costs related to the issuance
of the 2025 Notes and 2028 Notes totaling $33.1 million and $29.3 million, respectively, which were recorded as are duction to
the carrying value of the debt and are being amortized over the respective lives of the notes.

The Notes were issued pursuant to, and are governed by, an indenture (the “Notes Indenture”), dated as of June 12, 2020,
between the Company, Wesco Distribution and U.S. Bank National Association, as trustee (the “Trustee”). The Notes and related
guarantees were issued in a private transaction exempt from the Securities Act of 1933, as amended (the “Securities Act”) and
have not been, and will not be, registered under the Securities Act and may not be offered or sold in the U.S. absent registration
or an applicable exemption from, or in a transaction not subject to the registration requirements of the Securities Act and other
applicable securities laws.

The Company used the net proceeds from the issuance of the Notes, together with borrowings under its Revolving Credit
Facility and Receivables Facility and existing cash on hand, to finance the merger with Anixter and the other transactions
contemplated by the Agreement and Plan of Merger dated January 10, 2020 (the “Merger Agreement”). The use of proceeds
included (i) paying the cash portion of the consideration to stockholders of Anixter, (ii) refinancing certain existing indebtedness
of Anixter contemplated by the Merger Agreement, including financing the satisfaction and discharge, defeasance, redemption or
other repayment in full of the 5.125% Senior Notes due 2021 of Anixter Inc., a wholly-owned subsidiary of Anixter, and financing
payments in connection with the Anixter Consent Solicitations and Wesco Tender Offers, as described above, (iii) refinancing
other indebtedness of the Company, and (iv) paying fees, costs and expenses in connection with the foregoing.

68

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The Notes are unsecured and unsubordinated obligations of Wesco Distribution and are guaranteed on an unsecured,
unsubordinated basis by the Company and Anixter Inc. The 2025 Notes accrue interest at a rate of 7.125% per annum, payable
semi-annually in arrears on June 15 and December 15 of each year. The 2025 Notes will mature on June 15, 2025. The 2028
Notes accrue interest at a rate of 7.250% per annum, payable semi-annually in arrears on June 15 and December 15 of each year.
The 2028 Notes will mature on June 15, 2028.

Between June 15, 2023 and June 14, 2024, Wesco Distribution may redeem all or a part of the 2025 Notes at a redemption
price equal to 101.781% of the principal amount. On and after June 15, 2024, Wesco Distribution may redeem all or a part of the
2025 Notes at a redemption price equal to 100% of the principal amount.

At any time between June 15, 2023 and June 14, 2024, Wesco Distribution may redeem all or a part of the 2028 Notes at a
redemption price equal to 103.625% of the principal amount. Between June 15, 2024 and June 14, 2025, Wesco Distribution may
redeem all or a part of the 2028 Notes at a redemption price equal to 102.417% of the principal amount. Between June 15, 2025
and June 14, 2026, Wesco Distribution may redeem all or a part of the 2028 Notes at a redemption price equal to 101.208% of
the principal amount. On and after June 15, 2026, Wesco Distribution may redeem all or a part of the 2028 Notes at a redemption
price equal to 100% of the principal amount.

The Notes Indenture contains certain covenants that, among other things, limit (i) the Company’s and its subsidiaries’ ability
to pay dividends on or repurchase the Company’s capital stock, incur liens on assets, engage in certain sale and leaseback
transactions or sell certain assets, and (ii) the Company’s and any guarantor’s ability to sell all or substantially all of its assets to,
or merge or consolidate with or into, other persons, in the case of each of the foregoing, subject to certain qualifications and
exceptions, including the termination of certain of these covenants upon the Notes receiving investment grade credit ratings.

The Notes Indenture contains certain events of default, including, among other things, failure to make required payments,
failure to comply with certain agreements or covenants, failure to pay or acceleration of certain other indebtedness, certain events
of bankruptcy and insolvency, and failure to pay certain judgments. An event of default under the Notes Indenture will allow
either the Trustee or the holders of at least 25% in aggregate principal amount of the applicable series of the then-outstanding
Notes to accelerate, or in certain cases, will automatically cause the acceleration of the amounts due under the applicable series
of Notes.

Debt Issuance Costs

Wesco capitalizes certain costs associated with the issuance of debt and such costs are amortized over the term of the respective
debt instrument on a straight-line basis. Debt issuance costs are presented in the Consolidated Balance Sheets as a direct reduction
to the carrying amount of the related debt liability. Upon prepayment of debt, the Company accelerates the recognition of an
appropriate amount of the costs as refinancing or extinguishment of debt. As of December 31, 2023 and 2022, unamortized debt
issuance costs of $37.4 million and $51.1 million were recorded in the Consolidated Balance Sheets, respectively.

Covenant Compliance

Wesco’s credit agreements contain various restrictive covenants that, among other things, impose limitations on: (i) dividend
payments or certain other restricted payments or investments; (ii) the incurrence of additional indebtedness and guarantees;
(iii) creation of liens; (iv) mergers, consolidation or sales of substantially all of Wesco’s assets; (v) certain transactions among
affiliates; (vi) payments by certain subsidiaries to Wesco, and (vii) capital expenditures. In addition, the Revolving Credit Facility
and the Receivables Facility require Wesco to meet certain fixed charge coverage tests depending on availability or liquidity,
respectively.

Wesco was in compliance with all financial covenants contained in its debt agreements as of December 31, 2023.

69

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth the aggregate principal repayment requirements for all indebtedness for the next five years

and thereafter, as of December 31, 2023:

2024
2025
2026
2027
2028
Thereafter

Total payments on debt

Debt discount
Total debt

(In millions)

8.6
3,063.6
6.4
957.3
1,327.2
1.5
5,364.6

(5.6)
5,359.0

$

$

$

10. STOCKHOLDERS' EQUITY

Preferred Stock

There are 20 million shares of preferred stock authorized at a par value of $0.01 per share; there are no shares issued or
outstanding. The Company's Board of Directors has the authority, without further action by the stockholders, to issue all
authorized preferred shares in one or more series and to fix the number of shares, designations, voting powers, preferences,
optional and other special rights and the restrictions or qualifications thereof. The rights, preferences, privileges and powers of
each series of preferred stock may differ with respect to dividend rates, liquidation values, voting rights, conversion rights,
redemption provisions and other matters.

Series A Preferred Stock

The Company's Board of Directors authorized 25,000 shares of fixed-rate reset cumulative perpetual preferred stock, Series
A, with a liquidation preference of $25,000 per whole preferred share and apa r value of $0.01 per share (the “Series A Preferred
Stock”). Depositary shares, each representing a 1/1,000th interest in a share of Series A Preferred Stock, are registered under the
Securities Act.

In connection with the Company’s merger with Anixter, the Company issued 21,611,534 depositary shares, representing an

interest in approximately 21,612 shares of Series A Preferred Stock.

Holders of shares of the Series A Preferred Stock are entitled to receive, when, as and if declared by the Company's Board of
Directors, cumulative cash dividends at an initial rate of 10.625% per annum of the $25,000 liquidation preference per share. On
June 22, 2025, and every five-year period thereafter, the dividend rate on the Series A Preferred Stock resets and will be equal to
the Five-year U.S. Treasury Rate plus a spread of 10.325%.

Holders of the Series A Preferred Stock are not entitled to convert or exchange their shares of Series A Preferred stock into
shares of any of Wesco’s other classes or series of stock or into any other security of Wesco (other than upon a change of control
involving the issuance of additional shares of common stock or other change of control transaction, in each case, approved by
holders of common stock).

The Series A Preferred Stock has no stated maturity and will not be subject to any sinking fund, retirement fund or purchase
fund or any other obligation of Wesco to redeem, repurchase or retire the Series A Preferred Stock. On June 22, 2025, Wesco may
redeem the Series A Preferred Stock, in whole or in part, for cash at a redemption price of $25,000 per share, plus all accrued and
unpaid dividends.

Holders of the Series A Preferred Stock will have limited voting rights, including the right to elect two directors to the Board
of Directors of the Company in the event dividends on the Series A Preferred Stock remain unpaid for the equivalent of six or
more full quarterly dividend periods.

70

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Common Stock

There are 210 million shares of common stock and 20 million shares of Class B common stock authorized at a par value of
$0.01 per share. The Class B common stock is identical to the common stock, except for voting and conversion rights. The holders
of Class B common stock have no voting rights. With certain exceptions, Class B common stock may be converted, at the option
of the holder, into the same number of shares of common stock.

The terms of the Revolving Credit Facility, as well as the indentures governing the 2025 Notes and 2028 Notes, place certain
limits on the Company's ability to declare or pay dividends and repurchase common stock. These restrictions are based on
availability, as defined in the respective credit agreements, as well as Wesco's compliance with certain fixed charge coverage
tests. At December 31, 2023 and 2022, no dividends had been declared that remained unpaid and, therefore, no retained earnings
were reserved for dividend payments.

Treasury Stock

Common stock purchased for treasury is recorded at cost. At the date of subsequent reissue, the treasury stock account is

reduced by the cost of such stock, with cost determined on a weighted-average basis.

Share Repurchases

On May 31, 2022, the Company's Board of Directors adopted a resolution authorizing the repurchase of up to $1 billion of
the Company's common stock and Series A Preferred Stock. The share repurchase authorization has no expiration date and may
be modified, suspended, or terminated at any time without prior notice.

During the years ended December 31, 2023 and 2022, the Company entered into spot repurchase transactions through a broker
to purchase 504,335 and 87,502 shares, respectively, of its common stock in the open market for cash totaling $75.0 million and
$11.1 million, respectively. Wesco funded the repurchases with available cash and borrowings under its revolving credit facility
and the repurchases were made within the limits described above.

Dividends

The Company's dividends on common stock are declared at the discretion of the Board of Directors. During the fiscal year
ended December 31, 2023, the Board of Directors declared and the Company paid quarterly cash dividends totaling $76.6 million
to common stockholders.

The following table is asummary of cash dividends declared and paid on the Company's common stock for the year ended

December 31, 2023:

Date Declared

Record Date
March 31, 2023
March 15, 2023
March 3, 2023
June 30, 2023
June 15, 2023
June 1, 2023
August 31, 2023
September 29, 2023
September 15, 2023
November 30, 2023 December 15, 2023 December 29, 2023

Payment Date

Amount per share Dividend Payment
$19.2 million
$
$19.2 million
$
$19.1 million
$
$19.1 million
$

0.375
0.375
0.375
0.375

During 2023, the Company's Board of Directors also declared and the Company paid quarterly cash dividends of $0.664 per

depositary share totaling $57.4 million.

11. INCOME TAXES

The following table sets forth the components of income before income taxes by jurisdiction:

United States
Foreign

Income before income taxes

2023

Year Ended December 31,
2022
(In millions)

2021

$

$

739.4
252.6
992.0

$

$

859.4
277.3
1,136.7

$

$

396.8
185.1
581.9

71

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth the components of the provision for income taxes:

Current income taxes:

Federal
State
Foreign

Total current income taxes

Deferred income taxes:

Federal
State
Foreign

Total deferred income taxes

Provision for income taxes

2023

Year Ended December 31,
2022
(In millions)

2021

$

$

124.8
34.6
74.4
233.8

(1.0)
2.7
(9.6)
(7.9)
225.9

$

$

166.1
43.0
66.7
275.8

(7.5)
0.7
5.6
(1.2)
274.5

$

$

107.9
30.2
55.7
193.8

(62.3)
(12.3)
(3.7)
(78.3)
115.5

The following table sets forth the reconciliation between the federal statutory income tax rate and the effective tax rate:

Federal statutory rate
State income taxes, net of federal income tax benefit
Tax effect of intercompany financing
Unrecognized tax benefits
Nondeductible expenses
Change in valuation allowance
Effect of cross-border tax laws
Other
Effective tax rate

Year Ended December 31,
2022

2023

2021

21.0 %
3.0
(0.9)
—
—
(0.9)
1.4
(0.8)
22.8 %

21.0 %
3.1
(1.2)
0.3
0.3
(0.9)
1.4
0.2
24.2 %

21.0 %
2.0
(3.2)
2.5
0.6
(2.8)
(1.1)
0.9
19.9 %

On August 16, 2022, the Inflation Reduction Act of 2022 was enacted into U.S. law, which includes implementation of a new
corporate alternative minimum tax (“CAMT”), among other provisions. The CAMT imposes a minimum tax of 15% on the
adjusted financial statement income (“AFSI”) of certain corporations with average annual AFSI over a three-year period in excess
of $1 billion, so-called “applicable corporations”. CAMT is effective for tax years beginning after December 31, 2022. The
Company was not subject to CAMT in 2023 and does not expect to be subject to it in 2024.

The undistributed earnings of the Company's foreign subsidiaries amounted to approximately $2,194.1 million as of
December 31, 2023. Most of these earnings have been taxed in the U.S. under either the one-time transition tax or the GILTI tax
regime imposed by the TCJA. Wesco has elected to pay the transition tax in installments over an eight year period ending in 2026.
As of December 31, 2023, the Company's remaining liability for the transition tax was $53.8 million, which is recorded as
components of other current and noncurrent liabilities in the Consolidated Balance Sheet. The Company continues to assert that
the remaining undistributed earnings of its foreign subsidiaries are indefinitely reinvested. The distribution of earnings by Wesco's
foreign subsidiaries in the form of dividends, or otherwise, may be subject to additional taxation. The Company estimates that
additional taxes of approximately $119.3 million would be payable upon the remittance of all previously undistributed foreign
earnings as of December 31, 2023, based upon the laws in effect on that date. The Company believes that it is able to maintain
sufficient liquidity for its domestic operations and commitments without repatriating cash from Wesco's foreign subsidiaries.

72

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth deferred tax assets and liabilities:

Accounts receivable
Inventories
Depreciation of property, buildings and equipment
Operating leases
Amortization of intangible assets
Employee benefits
Stock-based compensation
Prepaid royalty payments
Disallowed business interest expense
Net operating loss carryforwards
Foreign tax credit carryforwards
Other

Deferred income taxes before valuation allowance

Valuation allowance

Total deferred income taxes

As of December 31,

2023

2022

(In millions)

Assets

Liabilities

Assets

Liabilities

23.3
45.9
—
201.8
—
21.5
11.2
—
1.9
36.7
41.1
38.3
421.7
(23.5)
398.2

$

$

— $
—
41.0
192.0
564.5
—
—
—
—
—
—
10.3
807.8
—
807.8

$

21.0
23.9
—
169.3
—
36.5
14.1
14.0
4.8
32.0
52.2
37.3
405.1
(33.7)
371.4

$

$

—
—
46.9
165.2
575.4
—
—
—
—
—
—
10.5
797.9
—
797.9

$

$

Wesco had deferred tax assets of $31.4 million and $27.6 million as of December 31, 2023 and 2022, respectively, related to
foreign net operating loss carryforwards. These net operating loss carryforwards expire beginning in 2026 through 2043, while
some may be carried forward indefinitely. The Company has determined that certain foreign net operating loss carryforwards will
not be realized before they expire. Accordingly, the Company has recorded a valuation allowance of $12.9 million and
$16.7 million against deferred tax assets related to certain foreign net operating loss carryforwards as of December 31, 2023 and
2022, respectively. Additionally, these foreign jurisdictions had deferred tax assets of $6.1 million and $10.9 million as of
December 31, 2023 and 2022, respectively, related to other future deductible temporary differences. The Company has recorded
a full valuation allowance against these amounts as of December 31, 2023 and 2022, respectively.

As of December 31, 2023 and 2022, Wesco had deferred tax assets of $3.0 million and $4.4 million, respectively, related to
state net operating loss carryforwards. These net operating loss carryforwards expire beginning in 2024 through 2041, while some
may be carried forward indefinitely. The Company has determined that certain state net operating loss carryforwards will not be
realized. Accordingly, the Company has recorded a valuation allowance of $1.0 million against deferred tax assets related to
certain state net operating loss carryforwards as of December 31, 2023.

As of December 31, 2023 and 2022, Wesco had deferred tax assets of $1.9 million and $4.8 million, respectively, related to
disallowed business interest expense for state income tax purposes. The carryforward period for disallowed business interest
expense is indefinite. The Company has determined that certain state disallowed business interest expense carryforwards will not
be realized. Accordingly, the Company has recorded a valuation allowance of $0.5 million against deferred tax assets related to
certain state disallowed business interest expense carryforwards as of December 31, 2023.

As of December 31, 2023 and 2022, Wesco had deferred tax assets of $41.1 million and $52.2 million, respectively, related to
foreign tax credit carryforwards. The foreign tax credit carryforwards expire beginning in 2027 through 2033. The Company has
determined that certain foreign tax credit carryforwards will not be realized before they expire. Accordingly, the Company has
recorded a valuation allowance of $2.9 million and $6.1 million against these deferred tax assets as of December 31, 2023 and
2022, respectively. Wesco’s ability to realize its deferred tax assets related to foreign tax credit carryforwards may be impacted
by U.S. tax legislation, our ability to generate sufficient foreign source taxable income, and tax planning strategies that the
Company may implement. The impact of these items, if any, on Wesco's assessment of the realizability of these deferred tax assets
will be recorded as a discrete item in the period in which the Company's assessment changes.

73

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The Company is under examination by tax authorities in various jurisdictions and remains subject to examination until the
applicable statutes of limitation expire. The statutes of limitation for the material jurisdictions in which the Company files income
tax returns remain open as follows:

United States —Fe deral
United States — Material States
Canada
UK
Australia

2020 and forward
2017 and forward
2012 and forward
2018 and forward
2018 and forward

The following table sets forth the reconciliation of gross unrecognized tax benefits:

Beginning balance January 1
Additions for current year tax positions
Additions for prior year tax positions
Additions for acquired tax positions
Reductions for prior year tax positions
Settlements
Lapse in statute of limitations
Foreign currency exchange rate changes
Ending balance December 31

2023

As of December 31,
2022
(In millions)

2021

109.3
29.2
6.6
0.9
(6.7)
(2.5)
(15.8)
0.3
121.3

$

$

107.3
14.4
0.9
5.5
(1.8)
—
(14.5)
(2.6)
109.3

$

$

68.1
39.8
8.4
—
(3.9)
(0.1)
(3.8)
(1.2)
107.3

$

$

The amount of unrecognized tax benefits that would affect the effective tax rate if recognized in the consolidated financial
statements for the years ended December 31, 2023, 2022 and 2021 were $40.1 million, $40.6 million, and $36.1 million,
respectively. Within the next twelve months, the amount of unrecognized tax benefits is expected to decrease by $16.5 million
due to the expiration of statutes of limitation. Such change would result in a$7 .6 million reduction in income tax expense.

The Company classifies interest related to unrecognized tax benefits as a component of interest expense, net in the
Consolidated Statements of Income and Comprehensive Income. The Company recognized interest income on unrecognized tax
benefits of $1.1 million for the year ended December 31, 2023. The Company recognized interest expense on unrecognized tax
benefits of $2.3 million and $0.9 million for the years ended December 31, 2022 and 2021, respectively. As of December 31,
2023 and 2022, Wesco had a liability of $8.9 million and $9.6 million, respectively, for interest expense related to unrecognized
tax benefits. The Company classifies penalties related to unrecognized tax benefits as part of income tax expense. Penalties
recorded in income tax expense for the years ended December 31, 2023 , 2022 and 2021 were immaterial. As of December 31,
2023 and 2022, Wesco had a liability of $4.7 million and $4.8 million, respectively, for penalties related to unrecognized tax
benefits.

On October 22, 2021, one of the Company's Mexican affiliates received ata x assessment from the Mexican tax authorities in
the amount of approximately $26.0 million related to its 2012 income tax return. This amount, updated for adjustments required
under Mexican law, was approximately $33.0 million as of December 31, 2023. The Company believes the assessment is without
merit and has filed an annulment lawsuit in the Mexican Federal Court of Administrative Justice. The Company expects to prevail
in this litigation and, accordingly, has not recognized a liability for this assessment in its consolidated financial statements.

74

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

In July 2022, one of the Company's Canadian affiliates received tax assessments from the Canada Revenue Agency (“CRA”)
totaling approximately $11.0 million, including tax and interest, related to its 2012 through 2014 income tax returns. The
Company's Canadian affiliate received a related penalty assessment of approximately $2.7 million in May 2023. The Company
believes these assessments are without merit and has appealed to the Tax Court of Canada. The Company intends to avail itself
of all avenues to appeal, as necessary to overturn the assessments and expects to prevail. Therefore, the Company has not
recognized a liability for these assessments in its consolidated financial statements. The CRA continues to audit the 2015 and
2016 tax years of Wesco's Canadian affiliates and has made inquiries into their 2017 through 2019 income tax returns. The
Company expects to eventually receive similar assessments for these tax years.

75

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

12. EARNINGS PER SHARE

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average
number of common shares outstanding during the periods. Diluted earnings per share is computed by dividing net income
attributable to common stockholders by the weighted-average common shares and common share equivalents outstanding during
the periods. The dilutive effect of common share equivalents is considered in the diluted earnings per share computation using
the treasury stock method, which includes consideration of equity awards.

The following table sets forth the details of basic and diluted earnings per share:

(In millions, except per share data)
Net income attributable to WESCO International, Inc.
Less: Preferred stock dividends
Net income attributable to common stockholders

Weighted-average common shares outstanding used in computing basic

earnings per share

Common shares issuable upon exercise of dilutive equity awards
Weighted-average common shares outstanding and common share

equivalents used in computing diluted earnings per share

Earnings per share attributable to common stockholders

Basic
Diluted

Year Ended December 31,
2022

2021

2023

$

$

$
$

765.5
57.4
708.1

$

$

860.5
57.4
803.1

$

$

51.1
1.2

52.3

50.7
1.7

52.4

13.86
13.54

$
$

15.83
15.33

$
$

465.4
57.4
408.0

50.3
1.7

52.0

8.11
7.84

The computation of diluted earnings per share attributable to common stockholders excludes stock-based awards that would
have had an antidilutive effect on earnings per share. For the years ended December 31, 2023 and 2022, there were approximately
0.2 million and 0.1 million antidilutive stock-based awards, respectively. For the year ended December 31, 2021, there were no
antidilutive stock-based awards.

13. EMPLOYEE BENEFIT PLANS

Defined Contribution Plans

Wesco Distribution sponsors a defined contribution retirement savings plan for the majority of its U.S. employees (the
“WESCO Distribution, Inc. Retirement Savings Plan”), which provides employer matching contributions. Contributions are made
in cash and employees have the option to transfer balances allocated to their accounts into any of the available investment options.
Prior to January 1, 2022, the Company could also make, subject to the Board of Directors' approval, a discretionary contribution
to the WESCO Distribution, Inc. Retirement Savings Plan if certain predetermined profit levels were attained. The amendments
to the WESCO Distribution, Inc. Retirement Savings described below eliminated the discretionary employer contributions.
Discretionary employer contribution charges of $13.1 million were incurred for the year ended December 31, 2021.

Anixter Inc. sponsored a defined contribution plan that covered all of its non-union U.S. employees (the “Anixter Inc.
Employee Savings Plan”). The employer match for the Anixter Inc. Employee Savings Plan was equal to 50% of a participant's
contribution up to 5% of the participant's compensation. Anixter Inc. also made an annual contribution to the Anixter Inc.
Employee Savings Plan on behalf of each active participant who was hired or rehired on or after July 1, 2015, or was not
participating in the Anixter Inc. Pension Plan. The amount of the employer annual contribution was equal to either 2% or 2.5%
of the participant’s compensation, as determined by the participant’s years of service. This contribution was in lieu of being
eligible for the Anixter Inc. Pension Plan. Certain of Anixter Inc.'s foreign subsidiaries also have defined contribution plans.
Contributions to these plans are based upon various levels of employee participation and legal requirements.

76

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Effective January 1, 2022, the Anixter Inc. Employee Savings Plan was merged with and into the WESCO Distribution, Inc.
Retirement Savings Plan (the “U.S. Defined Contribution Plan Merger”). On December 31, 2021, participant account balances
were transferred from the Anixter Inc. Employee Savings Plan to the WESCO Distribution, Inc. Retirement Savings Plan. In
connection with the U.S. Defined Contribution Plan Merger, the WESCO Distribution, Inc. Retirement Savings plan was amended
to change the employer matching contribution from an amount equal to 50% of participants' total monthly contributions up to 6%
of eligible compensation to an amount equal to 100% of a participant’s eligible elective deferrals up to 3% of the participant’s
eligible compensation and 50% of the next 4% of eligible compensation, and to eliminate the discretionary employer
contributions.

WESCO Distribution Canada LP, a wholly-owned subsidiary of the Company, sponsors ade fined contribution plan covering
the current full-time employees of WESCO Distribution Canada LP and part-time employees meeting certain requirements for
continuous service, earnings and minimum hours of employment (the “Wesco Canadian Defined Contribution Plan”). Prior to
January 1, 2022, the Company made contributions in amounts ranging from 3% to 5% of participants' eligible compensation
based on years of continuous service. For employees having completed between 20 and 25 or more years of service as of January
1, 2015, the Company's contribution ranged from 5% to 7% of the respective participants' eligible compensation.

Anixter Canada Inc. sponsored a defined contribution plan for certain employees of Anixter Canada Inc. and Anixter Power
Solutions Canada Inc. (the “Anixter Canadian Defined Contribution Plan”), which provided for core employer contributions in
amounts ranging from 3% to 4% of participants' eligible compensation based on years of continuous service, plus a matching
contribution equal to 25% of a participant’s elective contributions up to 6% of eligible compensation (for a maximum total
employer contribution equal to 5.5%).

Effective January 1, 2022, the Anixter Canadian Defined Contribution Plan was merged with and into an amended Wesco
Canadian Defined Contribution Plan. During the first quarter of 2022, participant account balances were transferred from the
Anixter Canadian Defined Contribution Plan to the amended Wesco Canadian Defined Contribution Plan. The amended Wesco
Canadian Defined Contribution Plan provides acore employer contribution of 3% of a participant’s eligible compensation, plus
a matching contribution equal to 50% of apa rticipant’s elective contributions up to 4% of eligible compensation (for a maximum
total employer contribution equal to 5%). The amended Wesco Canadian Defined Contribution Plan also requires employees of
EECOL Electric Corp. hired on or after January 1, 2022 to join this defined contribution plan, and permits enrollment for those
not participating in the defined benefit plan described below.

Wesco incurred charges of $73.4 million, $58.2 million, and $54.7 million for the years ended December 31, 2023, 2022 and

2021, respectively, for all defined contribution plans.

Deferred Compensation Plans

Wesco Distribution sponsors a non-qualified deferred compensation plan (the “Wesco Deferred Compensation Plan”) that
permits select employees to make pre-tax deferrals of salary and bonus. Employees have the option to transfer balances allocated
to their accounts in the Wesco Deferred Compensation Plan into any of the available investment options. The Wesco Deferred
Compensation Plan is an unfunded plan. As of December 31, 2023 and 2022, the Company's obligation under the Wesco Deferred
Compensation Plan was $27.4 million and $20.3 million, respectively, which is included in other noncurrent liabilities in the
Consolidated Balance Sheet.

Anixter Inc. sponsored a non-qualified deferred compensation plan (the “Anixter Deferred Compensation Plan”) that
permitted select employees to make pre-tax deferrals of salary and bonus. Interest was accrued monthly on the deferred
compensation balances based on the average ten-year Treasury note rate for the previous three months times a factor of 1.4, and
the rate was further adjusted if certain financial goals were achieved. In the fourth quarter of 2020, the Company terminated the
Anixter Deferred Compensation Plan and settled it in the second quarter of 2021 by making lump sum payments of $42.8 million
directly to participants. The Company used the proceeds from liquidating certain assets held in a Rabbi Trust arrangement of
approximately $39.7 million, plus available cash, to fund the settlement of the Anixter Deferred Compensation Plan.

77

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Defined Benefit Plans

Wesco sponsors aco ntributory defined benefit plan covering substantially all Canadian employees of EECOL Electric Corp.,
a wholly-owned subsidiary of the Company (the “EECOL Plan”). The EECOL Plan provides retirement benefits based on
earnings and credited service, and participants contribute 2% of their earnings to the EECOL Plan. Participants become 100%
vested after two years of continuous service or, if earlier, at the participant's normal retirement age.

Wesco also sponsors aSu pplemental Executive Retirement Plan for certain executives of EECOL Electric Corp. (the “EECOL
SERP”), which provides additional pension benefits based on earnings and credited service. Effective January 1, 2013, the
EECOL SERP was closed to new participants and existing participants became 100% vested. Participants of the EECOL SERP
now contribute 4% of their earnings to the EECOL Plan.

Anixter Inc. sponsors the Anixter Inc. Pension Plan, which was closed to entrants first hired or rehired on or after July 1, 2015,
and various defined benefit pension plans covering employees of foreign subsidiaries in Canada and Europe (together with the
EECOL Plan and the EECOL SERP, the “Foreign Plans”). The majority of the Company's defined benefit pension plans are non-
contributory, and with the exception of the U.S. and Canada, cover substantially all full-time employees in their respective
countries. Retirement benefits are provided based on compensation as defined in each of the plan agreements.

The Anixter Inc. Pension Plan is funded as required by the Employee Retirement Income Security Act of 1974 (“ERISA”)
and the Internal Revenue Service. With the exception of the EECOL SERP, which is an unfunded plan, the Foreign Plans are
funded as required by applicable foreign laws.

Anixter Inc. also sponsored the Anixter Inc. Executive Benefit Plan and the Supplemental Executive Retirement Plan (the
“Anixter SERP”) (together with the Anixter Inc. Pension Plan, the “Domestic Plans”). In the fourth quarter of 2020, the Company
terminated both the Anixter Inc. Executive Benefit Plan and the Anixter SERP. During the year ended December 31, 2021, the
Company settled its liabilities for these plans by making lump sum payments directly to participants totaling $17.9 million.

During the fourth quarter of 2021, the Company adopted certain plan amendments to: (i) freeze the benefits provided under
the Anixter Inc. Pension Plan effective December 31, 2021, (ii) close participation in the EECOL Plan effective December 31,
2021, and (iii) freeze the benefit accruals under the Pension Plan for Employees of Anixter Canada Inc., the EECOL Plan and the
EECOL SERP effective December 31, 2023. These amendments required the Company to remeasure the projected benefit
obligations associated with these plans, resulting in aga in from curtailment recognized during the fourth quarter of 2021.

During the fourth quarter of 2022, the Company terminated the Anixter Inc. Pension Plan effective December 31, 2022.
Accordingly, certain estimates that reflect the pending settlement of this plan were incorporated into the assumptions used to
measure the respective projected benefit obligation as of December 31, 2023 and 2022. As the Anixter Inc. Pension Plan had
previously been frozen, its termination did not result in any curtailment gain or loss for the years ended December 31, 2023 or
2022. The benefit obligation associated with this plan was partially settled during the fourth quarter of 2023 by making lump sum
cash payments to participants totaling $110.9 million and the Company recognized settlement cost of $4.7 million.

On February 12, 2024, the remaining benefit obligation of the Anixter Inc. Pension Plan was settled through the purchase of
single premium annuity contracts for total cash of $138.8 million. The purchase was funded entirely by the assets of the plan. The
final remeasurement of the plan will occur in the first quarter of 2024. Unrealized gains or losses currently reported as components
of other comprehensive income (loss) related to the benefit obligation of the Anixter Inc. Pension Plan will be recognized in a
final settlement charge at that time.

78

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table presents the changes in benefit obligations, plan assets and funded status for the defined benefit plans:

(In millions)
Change in Projected Benefit Obligation
Beginning balance
Service cost
Interest cost
Participant contributions
Actuarial (gain) loss, including

assumption changes

Benefits paid from plan assets
Benefits paid from Company assets
Settlement
Foreign currency exchange rate changes
Ending balance

Change in Plan Assets at Fair Value
Beginning balance
Actual return on plan assets
Participant contributions
Employer contributions
Benefits paid
Settlement
Foreign currency exchange rate changes
Ending balance

Funded Status

Amounts Recognized in the

Consolidated Balance Sheets

Other assets
Other current liabilities
Other noncurrent liabilities
Net amount recognized

Weighted Average Assumptions Used to

Determine Benefit Obligations

Discount rate
Rate of compensation increase

Domestic Plans

Foreign Plans

Total

2023

2022

2023

2022

2023

2022

$

$

$

$

$

$

$

253.5
—
10.4
—

2.6
(8.1)
—
(110.9)
—
147.5

285.1
12.0
—
—
(8.1)
(110.9)
—
178.1

30.6

30.6
—
—
30.6

$

$

$

$

$

$

$

301.8
—
8.7
—

(47.1)
(9.8)
—
—
—
253.5

370.7
(75.8)
—
—
(9.8)
—
—
285.1

$

$

$

$

267.3
4.7
12.9
1.0

29.5
(11.7)
(0.5)
(4.2)
10.1
309.1

267.6
24.1
1.0
10.2
(12.2)
(4.2)
9.2
295.7

31.6

$

(13.4)

31.6
—
—
31.6

$

$

18.0
(0.4)
(31.0)
(13.4)

$

$

$

$

$

$

$

424.1
8.3
9.5
0.9

(133.9)
(11.1)
(0.5)
(0.2)
(29.8)
267.3

381.8
(87.7)
0.9
11.3
(11.1)
(0.2)
(27.2)
267.6

0.3

28.4
(0.4)
(27.6)
0.3

$

$

$

$

$

$

$

520.8
4.7
23.3
1.0

32.1
(19.8)
(0.5)
(115.1)
10.1
456.6

552.7
36.1
1.0
10.2
(20.3)
(115.1)
9.2
473.8

17.2

48.6
(0.4)
(31.0)
17.2

$

$

$

$

$

$

$

725.9
8.3
18.2
0.9

(181.0)
(21.0)
(0.5)
(0.2)
(29.8)
520.8

752.5
(163.5)
0.9
11.3
(21.0)
(0.2)
(27.2)
552.7

31.9

60.0
(0.4)
(27.6)
31.9

4.5 %
— %

4.4 %
— %

4.4 %
3.3 %

4.8 %
3.4 %

4.4 %
3.3 %

4.6 %
3.4 %

The measurement date for all plans is December 31st. Accordingly, at the end of each fiscal year, the Company determines
the discount rate to measure the plan liabilities at their present value. The discount rate reflects the current rate at which the
pension liabilities could effectively be settled at the measurement date. This rate was estimated at the end of 2023 and 2022 using
a yield curve based on corporate bond data, which the Company concluded was consistent with observable market conditions and
industry standards for developing spot rate curves.

The Company had nine plans at December 31, 2023 and seven plans at December 31, 2022 for which the projected benefit
obligation was in excess of the fair value of plan assets. For these plans, the aggregate projected benefit obligation was
$215.0 million and $119.0 million, respectively, and the aggregate fair value of plan assets was $183.8 million and $91.0 million,
respectively.

79

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

At December 31, 2023 and 2022, the Company's accumulated benefit obligation was $147.5 million and $253.5 million,
respectively, for the Domestic Plans and $302.5 million and $253.2 million, respectively, for the Foreign Plans. The Company
had nine plans at December 31, 2023 and seven plans at December 31, 2022 for which the accumulated benefit obligation was in
excess of the fair value of plan assets. For these plans, the aggregate accumulated benefit obligation was $208.6 million and
$113.7 million, respectively, and the aggregate fair value of plan assets was $183.8 million and $91.0 million, respectively.

The following tables set forth the components of net periodic pension cost (benefit) for the Company's defined benefit plans:

(In millions)
Components of Net Periodic
Pension Cost (Benefit)

Service cost
Interest cost
Expected return on plan assets
Recognized actuarial (loss)
gain

Curtailment
Settlement
Net periodic pension cost
(benefit)

Domestic Plans
2022

2023

2021

2023

Foreign Plans
2022

2021

2023

Total
2022

2021

$ — $ — $

10.4
(9.6)

8.7
(14.4)

$

3.0
8.2
(17.1)

$

4.7
12.9
(14.0)

8.3
9.5
(17.6)

$ 12.1
9.8
(17.8)

$

4.7
23.3
(23.6)

$

8.3
18.2
(32.0)

$ 15.2
18.0
(34.9)

—

—
4.7

—

—
—

—

(3.9)
0.3

(2.3)

—
(1.9)

(0.9)

—
(0.1)

0.1

(32.7)
(0.1)

(2.3)

—
2.8

(0.9)

—
(0.1)

0.1

(36.6)
0.2

$

5.5

$ (5.7) $ (9.5) $ (0.6) $

(0.8) $ (28.5) $

4.9

$

(6.5) $ (38.0)

Service cost is reported as a component of selling, general and administrative expenses. The other components of net periodic
pension cost (benefit) totaling net cost of $0.2 million for the year ended December 31, 2023 and net benefits of $14.8 million
and $53.2 million for the years ended December 31, 2022 and 2021, respectively, are presented as components of other non-
operating expense (income) (“other expense (income), net”).

The following weighted-average actuarial assumptions were used to determine net periodic pension cost (benefit):

Domestic Plans

Foreign Plans

2023

2022

2021

2023

2022

2021

2023

Discount rate
Expected return on plan assets
Rate of compensation increase

4.4 %
4.8 %
— %

2.9 %
4.3 %
— %

2.6 %
5.3 %
3.8 %

4.8 %
5.5 %
3.4 %

2.4 %
5.0 %
3.4 %

2.0 %
4.9 %
3.2 %

4.6 %
5.1 %
3.4 %

Total

2022

2.6 %
4.6 %
3.4 %

2021

2.3 %
5.1 %
3.4 %

The expected long-term rate of return on plan assets reflects the average rate of earnings expected on the invested assets and
future assets to be invested to provide for the benefits included in the projected benefit obligation. The Company uses historical
plan asset returns combined with current market conditions to estimate the rate of return.

As a result of the combined effect of valuation changes in both the equity and bond markets, the plan assets produced an actual
gain of 7.0% in 2023. The difference between the expected return and actual return on plan assets is amortized into expense over
the service lives of the plan participants. These amounts are reflected on the balance sheet through charges to accumulated other
comprehensive (income) loss.

80

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following table sets forth the changes and the end of year components of accumulated other comprehensive (income) loss

for the defined benefit plans:

(In millions)
Changes to Balance:

Beginning balance, before tax effect
Net actuarial loss arising in current year
Recognized actuarial loss
Settlement
Foreign currency exchange rate changes
Ending balance, before tax effect

(In millions)

Components of Balance:

Prior service credit
Net actuarial gain
Ending balance, before tax effect

Tax effect
Ending balance, after tax effect

Year Ended December 31,

2023

2022

$

$

$

$

(40.6) $
19.6
2.3
(2.8)
(1.0)
(22.5) $

(58.8)
14.5
0.9
0.1
2.6
(40.6)

As of December 31,

2023

2022

(0.2) $

(22.3)
(22.5)

2.8
(19.7) $

(0.2)
(40.5)
(40.6)

10.2
(30.4)

The following benefit payments, which reflect expected future service, are expected to be paid as follows:

(In millions)

2024
2025
2026
2027
2028
2029 to 2033

Domestic Plans

Foreign Plans

Total

$

148.6 $
—
—
—
—
—

10.5 $
10.5
11.5
11.9
15.7
94.3

159.1
10.5
11.5
11.9
15.7
94.3

The Company expects to contribute approximately $7.0 million to its Foreign Plans in 2024. The Company does not expect
to make a contribution to its domestic qualified pension plan in 2024 due to its overfunded status and anticipated settlement in
the first quarter of 2024, as described above.

The assets of the various defined benefit plans are held in separate independent trusts and managed by independent third party
advisors. The investment objective for the defined benefit plans is to ensure an adequate level of assets is available to fund the
benefits owed to employees and their beneficiaries when they become payable. In meeting this objective, the Company seeks to
achieve a level of absolute investment return consistent with a prudent level of portfolio risk. The Company's risk preference is
to refrain from exposing the plans to higher volatility in pursuit of potential higher returns.

81

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The asset mixes and the asset allocation guidelines for the Domestic Plans and Foreign Plans are summarized as follows:

Equities
Debt securities:

Domestic treasuries
Corporate bonds
Total debt securities
Cash equivalents

Equities

Debt securities:

Domestic treasuries
Corporate bonds
Pooled investment funds and other

Total debt securities

Property/real estate
Insurance products
Other

Equities
Debt securities:

Domestic treasuries
Corporate bonds
Other

Total debt securities
Property/real estate
Cash equivalents

Domestic Plans

Allocation Guidelines

December 31,
2023

Min

Target

Max

4.0 %

— %

4 %

35 %

17.3
40.5
57.8
38.2
100.0 %

—
—

—

17
41
58
38
100 %

—
—

—

Foreign Plans

Allocation Guidelines

December 31,
2023

Min

Target

Max

19.7 %

12 %

21 %

29 %

0.8
3.2
63.7
67.7

4.0
7.1
1.5
100.0 %

—
1
48

2
7
—

1
1
67
69

2
7
1
100 %

—
31
78

8
7
8

Domestic Plans

Allocation Guidelines

December 31,
2022

Min

Target

Max

2.1 %

— %

2 %

35 %

5.5
22.4
7.6
35.5
13.5
48.9
100.0 %

—
—
—

—
—

5
22
8
35
14
49
100 %

—
—
35

35
—

82

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Equities

Debt securities:

Domestic treasuries
Corporate bonds
Pooled investment funds and other

Total debt securities

Property/real estate
Insurance products
Other

Foreign Plans

Allocation Guidelines

December 31,
2022

Min

Target

Max

27.3 %

19 %

30 %

38 %

0.2
4.0
52.6
56.8

4.0
6.9
5.0
100.0 %

—
1
36

2
7
4

—
1
54
55

4
7
4
100 %

—
29
67

7
7
11

The plans' pension committees meet regularly to assess investment performance relative to asset allocation guidelines. The

Company periodically rebalances its asset portfolios to be in line with its allocation guidelines.

For 2023, the investment policy guidelines of the Domestic Plans were as follows:

Each asset class is managed by one or more active and passive investment managers

Each asset class may be invested in a commingled fund, mutual fund, or separately managed account

•
•
•
•
• Derivative instruments such as futures, swaps and options may be used on alimited basis; for funds that employ

Each manager is expected to be “fully invested” with minimal cash holdings

Investment in Exchange Traded Funds is permissible

•
•

derivatives, the loss of invested capital to the trust should be limited to the amount invested in the fund

The equity portfolio is diversified by sector and geography

The fixed income is invested in U.S. Treasuries, investment grade corporate debt (denominated in U.S. dollars), and
other credit investments including below investment grade rated bonds and loans, securitized credit, and emerging
market debt

The investment policies for the Foreign Plans are the responsibility of the various trustees. Generally, the investment policy

guidelines are as follows:

• Make sure that the obligations to the beneficiaries of the plan can be met
• Maintain funds at a level to meet the minimum funding requirements
•

The investment managers are expected to provide a return, within certain tracking tolerances, close to that of the relevant
market’s indices

83

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following tables set forth the fair value of assets by asset category for the Domestic Plans and Foreign Plans:

(In millions)

Domestic Plans
Equities
Debt securities:

Domestic treasuries
Corporate bonds

Cash equivalents

Total investments in Domestic Plans

Foreign Plans

Equities

Debt securities:

Domestic treasuries

Corporate bonds

Pooled investment funds and other

Property/real estate

Insurance products

Other

Total investments in Foreign Plans

Total

Equities

Debt securities:

Domestic treasuries

Corporate bonds

Pooled investment funds and other

Property/real estate

Insurance products

Cash equivalents

Other

Total investments

Level 1

Level 2

December 31, 2023
Level 3

NAV (1)

Total

— $

— $

— $

7.2

$

7.2

—
—

68.0

68.0

—
—

—

—
—

—

30.9
72.0

—

30.9
72.0

68.0

$

— $

— $

110.1

$

178.1

— $

— $

— $

58.3

$

58.3

—

—

—

—

—

4.5

4.5

—

—

—

—

20.9

—

—

—

—

—

—

—

2.4

9.6

188.2

11.8

—

—

2.4

9.6

188.2

11.8

20.9

4.5

$

20.9

$

— $

270.3

$

295.7

— $

— $

— $

65.5

$

65.5

$

$

$

$

$

—

—

—

—

—

68.0

4.5

—

—

—

—

20.9

—

—

—

—

—

—

—

—

—

33.3

81.6

188.2

11.8

—

—

—

33.3

81.6

188.2

11.8

20.9

68.0

4.5

$

72.5

$

20.9

$

— $

380.4

$

473.8

84

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(1)

Investments measured at fair value using the net asset value (“NAV”) per share practical expedient have not been classified in the fair value
hierarchy. The amounts presented in the tables above are intended to reconcile the fair value hierarchy to the total fair value of plan assets.

(In millions)

Domestic Plans
Equities
Debt securities:

Domestic treasuries
Corporate bonds
Other

Property/real estate
Cash equivalents

Total investments in Domestic Plans

Foreign Plans
Equities
Debt securities:

Domestic treasuries
Corporate bonds
Pooled investment funds and other

Property/real estate
Insurance products
Other

Total investments in Foreign Plans

Total
Equities
Debt securities:

Domestic treasuries
Corporate bonds
Pooled investment funds and other

Property/real estate
Insurance products
Cash equivalents
Other

Total investments

Level 1

Level 2

December 31, 2022
Level 3

NAV (1)

Total

$

— $

— $

— $

5.9

$

5.9

—
—
—
—
139.4
139.4

$

—
—
—
—
—
— $

—
—
—
—
—
— $

15.6
63.8
21.7
38.7
—
145.7

$

15.6
63.8
21.7
38.7
139.4
285.1

— $

— $

— $

73.1

$

73.1

—
—
—
—
—
3.7
3.7

$

—
—
—
—
18.5
—
18.5

$

—
—
—
—
—
—
— $

0.4
10.7
141.0
10.6
—
9.6
245.4

$

0.4
10.7
141.0
10.6
18.5
13.3
267.6

— $

— $

— $

79.0

$

79.0

—
—
—
—
—
139.4
3.7
143.1

$

—
—
—
—
18.5
—
—
18.5

$

—
—
—
—
—
—
—
— $

16.0
74.6
162.7
49.3
—
—
9.6
391.1

$

16.0
74.6
162.7
49.3
18.5
139.4
13.3
552.7

$

$

$

$

$

(1)

Investments measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. The
amounts presented in the tables above are intended to reconcile the fair value hierarchy to the total fair value of plan assets.

85

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The assets of the Domestic Plans and Foreign Plans are measured at fair value, which is defined as the price that would be
received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement
date. Financial assets and liabilities are classified in the fair value hierarchy based on the lowest level of any input that is
significant to the measurement of fair value. Investments for which fair value is measured using the net asset value per share
practical expedient are not classified in the fair value hierarchy. The majority of pension assets are comprised of
common/collective/pool funds (i.e., mutual funds). These funds are valued at the net asset value of shares held in the underlying
funds.

The fair value methods described above may not be indicative of net realizable value or reflective of future fair values.
Additionally, while the Company believes the valuation methods are appropriate and consistent with other market participants,
the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a
different fair value measurement at the reporting date.

Other Benefits

Prior to its acquisition by Wesco on June 22, 2020, Anixter granted restricted stock units in the ordinary course of business to
its employees and directors. These awards, for which vesting did not accelerate solely as a result of the Company's merger with
Anixter, were converted into cash-only settled Wesco phantom stock units, which vested ratably over a 3-year period. As of
December 31, 2023, these awards had fully vested and have no remaining fair value or liability. As of December 31, 2022, the
estimated fair value of these awards was $8.1 million and the Company's liability for these awards was $8.0 million, which is
included in accrued payroll and benefit costs in the Consolidated Balance Sheet.

The Company recognized compensation expense associated with these awards of $0.1 million, $2.6 million, and $13.6 million
for the years ended December 31, 2023, 2022, and 2021, respectively, which is reported as aco mponent of selling, general and
administrative expenses.

14. STOCK-BASED COMPENSATION

Wesco sponsors ast ock-based compensation plan. On May 27, 2021, the Company's stockholders approved the WESCO
International, Inc. 2021 Omnibus Incentive Plan (the “2021 Plan”). The 2021 Plan is administered by the Compensation
Committee of the Company's Board of Directors.

The 2021 Plan was designed to be the successor plan to all prior stock-based compensation plans. Accordingly, no new awards
may be granted under the Company’s 1999 Long-Term Incentive Plan, as amended and restated (the “1999 Plan”) or any other
prior plan. Awards outstanding under any such prior plans will remain in full force and effect under such plans according to their
respective terms. To the extent that any such award is forfeited, terminates, expires or lapses without being exercised, or is settled
for cash, the shares subject to such award not delivered will again be available for awards under the 2021 Plan.

The maximum number of shares of the Company’s common stock that may be granted pursuant to awards under the 2021
Plan is 2,150,000, less any shares issued under the 1999 Plan between March 31, 2021 and May 27, 2021. If any award granted
under the 2021 Plan is forfeited, terminates, expires or lapses instead of being exercised, or is settled for cash, the shares subject
to such award will again be available for grant under the 2021 Plan. Shares delivered by participants or withheld by the Company
to pay all or a portion of the exercise price or withholding taxes with respect to stock option or stock appreciation right awards
will not again be available for issuance. Shares delivered by participants or withheld by the Company to satisfy applicable tax
withholding obligations with respect to restricted shares or restricted stock units will again be available for grant under the 2021
Plan. As of December 31, 2023, 1,877,701 shares of common stock were reserved under the 2021 Plan for future equity award
grants.

Stock-based compensation awards outstanding under Wesco's plans comprise stock options, stock-settled stock appreciation
rights, restricted stock units and performance-based awards. Compensation cost for all stock-based awards is measured at fair
value on the date of grant and compensation cost is recognized, net of estimated forfeitures, over the service period for awards
expected to vest. The fair value of stock options and stock-settled stock appreciation rights is determined using the Black-Scholes
model. The fair value of restricted stock units and performance-based awards with performance conditions is determined by the
grant-date closing price of Wesco’s common stock. The forfeiture assumption is based on Wesco’s historical participant behavior

86

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

that is reviewed on at least an annual basis. For stock options and stock-settled stock appreciation rights that are exercised, and
for restricted stock units and performance-based awards that vest, shares are issued out of Wesco's outstanding common stock.

Stock options and stock-settled stock appreciation rights vest ratably over a three-year period and terminate on the tenth
anniversary of the grant date unless terminated sooner under certain conditions. Restricted stock unit awards that were granted
under the 1999 Plan vest fully on the third anniversary of the date of grant, except for the special award described below, which
vested in tranches. Restricted stock units awarded under the 2021 Plan vest ratably over a three-year period on each of the first,
second and third anniversaries of the grant date. Vesting of performance-based awards is based on a three-year performance
period, and the number of shares earned, if any, depends on the attainment of certain performance levels, as described below.
Outstanding awards would vest upon the consummation of a change in control transaction with performance-based awards vesting
at the target level.

On July 2, 2020, a special award of restricted stock units was granted to certain officers of the Company. These awards vested
in tranches of 30% on each of the first and second anniversaries of the grant date and 40% on the third anniversary of the grant
date, subject to continued employment through the applicable anniversary date.

Performance-based awards are based on two equally-weighted performance measures: the three-year average growth rate of
Wesco's net income attributable to common stockholders and the three-year cumulative return on net assets. These awards are
accounted for as awards with performance conditions; compensation cost is recognized over the performance period based upon
Wesco's determination of whether it is probable that the performance targets will be achieved.

Wesco recognized $48.1 million, $46.4 million and $30.8 million of non-cash stock-based compensation expense for the years
ended December 31, 2023, 2022 and 2021, respectively, which is included in selling, general and administrative expenses for all
such periods. As of December 31, 2023, there was $50.2 million of total unrecognized compensation expense related to non-
vested stock-based compensation arrangements for all awards previously made, which is expected to be recognized as follows:

For the year ending December 31,

(In millions)

2024

2025

2026

$

32.2

16.1

1.9

The aggregate intrinsic value of awards exercised during the years ended December 31, 2023, 2022, and 2021 was $172.8
million, $68.3 million, and $69.7 million, respectively. The gross income tax benefit associated with the exercise of stock-based
awards totaled $40.8 million, $15.8 million, and $16.8 million in 2023, 2022, and 2021, respectively.

During the years ended December 31, 2023, 2022 and 2021, Wesco granted the following stock options, stock-settled stock

appreciation rights, restricted stock units, and performance-based awards at the following weighted-average fair values:

Stock options granted
Weighted-average fair value

Stock-settled stock appreciation rights granted
Weighted-average fair value

Restricted stock units granted
Weighted-average fair value

Performance-based awards granted(1)
Weighted-average fair value(1)

$

$

$

87

Year Ended December 31,
2022
92,799
57.15

2023
78,729
76.69

$

2021

—
n/a

—
n/a

— 139,592
33.19
n/a $

177,659
169.65

234,800
$ 122.13

212,656
87.04

83,991
$ 122.09

314,480
77.81

122,812
76.76

$

$

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(1) As described further below, the year ended December 31, 2023 includes performance-based awards granted in February 2020 for which
actual achievement levels were certified in February 2023, as well as performance-based awards granted during the year ended December 31,
2023.

The fair values of stock options and stock-settled stock appreciation rights, as disclosed in the table above, were estimated

using the following weighted-average assumptions in the respective periods:

Risk free interest rate
Expected life (in years)
Expected volatility
Expected dividend yield

Year Ended December 31,
2022
2.0%
7
43%
n/a

2023
4.1%
5
50%
0.89%

2021
0.8%
7
41%
n/a

The risk-free interest rate is based on the U.S. Treasury Daily Yield Curve rate as of the grant date. The expected life is based
on historical exercise experience, the expected volatility is based on the volatility of the Company's daily stock price over the
expected life preceding the grant date of the award, and the expected dividend yield is based on the calculated yield on the
Company's common stock at date of grant using the current year projected dividend distribution rate. The Company did not pay
dividends to holders of its common stock during the years ended December 31, 2022 and 2021.

The following table sets forth a summary of stock options and related information for the periods presented:

Year Ended December 31,

2023

2022

Weighted-
Average
Exercise
Price

Weighted-
Average
Remaining
Contractual
Life (In years)

Aggregate
Intrinsic
Value
(In millions)

121.55

169.72
122.09
148.67
144.51

121.53

8.6 $

8.1 $

4.8

1.5

Weighted-
Average
Exercise
Price

—

121.58
—
122.09
121.55

122.09

Awards

— $

92,799
—
(5,452)
87,347

879

$

Beginning of year

Granted
Exercised
Forfeited
End of year

Awards

87,347

$

78,729
(1,279)
(1,715)
163,082

Exercisable at end of year

28,411

$

For the year ended December 31, 2023, the aggregate intrinsic value of stock options exercised during such period was not

material.

The following table sets forth a summary of stock-settled stock appreciation rights and related information for the periods

presented:

Beginning of
year
Granted
Exercised
Forfeited
End of year

Exercisable at
end of year

Year Ended December 31,

2023

2022

2021

Weighted-
Average
Exercise
Price

Weighted-
Average
Remaining
Contractual
Life (In)

Aggregate
Intrinsic
Value
(In millions)

Awards

1,248,115

$

—
(428,500)
(1,331)
818,284

62.02

—
66.70
74.57
59.55

5.0 $

93.6

Weighted-
Average
Exercise
Price

62.09

—
61.90
73.35
62.02

Awards

1,370,388

$

—
(113,382)
(8,891)
1,248,115

Weighted-
Average
Exercise
Price

60.48

77.05
60.70
54.42
62.09

Awards

2,161,556

$

139,592
(916,906)
(13,854)
1,370,388

777,479

$

58.64

4.9 $

89.6

1,083,320

$

61.91

1,001,708

$

62.79

88

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

For the year ended December 31, 2023, the aggregate intrinsic value of stock-settled appreciation rights exercised during such

period was $40.2 million.

The following table sets forth a summary of restricted stock units and related information for the periods presented:

2023

Awards

Unvested at beginning of year

774,233

$

Granted
Vested
Forfeited

Unvested at end of year

177,659
(508,173)
(36,106)
407,613

$

Year Ended December 31,
2022

Weighted-
Average
Fair
Value

53.48

122.13
53.13
66.30
73.79

Awards

974,162

$

234,800
(393,194)
(41,535)
774,233

$

Weighted-
Average
Fair
Value

73.79

169.65
59.72
137.28
127.49

2021

Weighted-
Average
Fair
Value

43.15

77.81
44.10
63.86
53.48

Awards

921,495

$

314,480
(232,152)
(29,661)
974,162

$

The following table sets forth a summary of performance-based awards and related information for the periods presented:

2023

Weighted-
Average
Fair
Value

75.26
87.04
48.32
111.00
115.15

Awards

335,329
212,656
(289,394)
(3,732)
254,859

$

$

Year Ended December 31,
2022

Weighted-
Average
Fair
Value

59.23
122.09
54.64
60.75
75.26

Awards

380,819
83,991
(115,394)
(14,087)
335,329

$

$

2021

Weighted-
Average
Fair
Value

52.61
76.76
62.80
61.26
59.23

Awards

305,269
122,812
(22,371)
(24,891)
380,819

$

$

Unvested at beginning of year

Granted(1)
Vested
Forfeited

Unvested at end of year

(1)

Includes 63,098 performance-based awards granted in February 2023 with a fair value of $171.96 and three-year performance period ending
December 31, 2025, and 144,697 of additional performance-based awards related to awards originally granted in February 2020 with a fair
value of $48.32 and three-year performance period ended December 31, 2022 for which actual achievement levels were certified in February
2023. Also includes 3,074, 662, and 549 performance-based awards granted during the three months ended June 30, 2023, September 30,
2023, and December 31, 2023, respectively, with weighted-average fair values of $150.32, $115.04, and $115.21, respectively, and three-
year performance periods ending December 31, 2025.

15. COMMITMENTS AND CONTINGENCIES

From time to time, a number ofla wsuits and claims have been or may be asserted against the Company relating to the conduct
of its business, including litigation relating to commercial, product and employment matters (including wage and hour). The
outcome of any litigation cannot be predicted with certainty, and some lawsuits may be determined adversely to Wesco. However,
management does not believe that the ultimate outcome of any such pending matters is likely to have a material adverse effect on
Wesco's financial condition or liquidity, although the resolution in any fiscal period of one or more of these matters may have a
material adverse effect on Wesco's results of operations for that period.

As of December 31, 2023, the Company had $60.9 million in outstanding letters of credit and guarantees.

16. BUSINESS SEGMENTS

The Company has operating segments comprising three strategic business units consisting of EES, CSS and UBS. These
operating segments are equivalent to the Company's reportable segments. The Company's chief operating decision maker
evaluates the performance of its operating segments based on net sales, adjusted earnings before interest, taxes, depreciation and
amortization (“EBITDA”), and adjusted EBITDA margin percentage.

89

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The Company incurs corporate costs primarily related to treasury, tax, information technology, legal and other centralized
functions. The Company also has various corporate assets. Segment assets may not include jointly used assets, but segment results
include depreciation expense or other allocations related to those assets. Interest expense and other non-operating items are either
not allocated to the segments or reviewed on ase gment basis. Corporate expenses and assets not directly identifiable with a
reportable segment are reported in the tables below to reconcile the reportable segments to the consolidated financial statements.

The following is a description of each of the Company's reportable segments and their business activities.

Electrical & Electronic Solutions

The EES segment, with approximately 6,800 employees supporting customers in more than 50 countries, supplies a broad
range of products and solutions primarily to the construction, industrial and original equipment manufacturer (“OEM”) markets.
The product portfolio in this business includes a broad range of electrical equipment and supplies, automation and connected
devices (the “Internet of Things” or “IoT”), security, lighting, wire and cable, safety, and maintenance, repair and operating
(“MRO”) products from industry-leading manufacturing partners. The EES service portfolio includes contractor solutions to
improve project execution, direct and indirect manufacturing supply chain optimization programs, lighting and renewables
advisory services, and digital and automation solutions to improve safety and productivity.

Communications & Security Solutions

The CSS segment, with approximately 4,400 employees supporting customers in more than 50 countries, is a global leader in
the network infrastructure and security markets. CSS sells products directly to end-users or through various channels including
data communications contractors, security, network, professional audio/visual and systems integrators. In addition to the core
network infrastructure and security portfolio, CSS has a broad offering of safety and energy management solutions. CSS products
are often combined with supply chain services to increase efficiency and productivity, including installation enhancement, project
deployment, advisory, and IoT and digital services.

Utility & Broadband Solutions

The UBS segment, with approximately 2,900 employees supporting customers primarily in the U.S. and Canada, provides
products and services to investor-owned utilities, public power companies, including municipalities, as well as global service
providers, wireless providers, broadband operators and the contractors that service these customers. The UBS segment also
includes Wesco’s integrated supply business, which provides products and services to large industrial and commercial end-users
to support their MRO spend. The products sold into the utility and broadband markets include wire and cable, transformers,
transmission and distribution hardware, switches, protective devices, connectors, lighting, conduit, fiber and copper cable,
connectivity products, pole line hardware, racks, cabinets, safety and MRO products, and point-to-point wireless devices. The
UBS segment also offers a complete set of service solutions to improve customer supply chain efficiencies.

The following tables set forth financial information by reportable segment for the periods presented:

(In millions)

Net sales

(In millions)

Net sales

(In millions)

Net sales

Year Ended December 31, 2023

EES

CSS

UBS

8,610.3

$

7,152.2

$

6,622.7

$

Year Ended December 31, 2022

EES

CSS

UBS

8,823.3

$

6,401.5

$

6,195.3

$

Year Ended December 31, 2021

EES

CSS

UBS

7,621.3

$

5,715.2

$

4,881.0

$

$

$

$

Total
22,385.2

Total
21,420.1

Total
18,217.5

90

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(In millions)

Adjusted EBITDA
Adjusted EBITDA margin %

(In millions)

Adjusted EBITDA
Adjusted EBITDA margin %

(In millions)

Adjusted EBITDA
Adjusted EBITDA margin %

$

$

$

Year Ended December 31, 2023
CSS

UBS

EES

$

727.4
8.4%

$

683.8
9.6%

739.3
11.2%

Year Ended December 31, 2022
CSS

UBS

EES

$

851.3
9.6%

$

599.0
9.4%

677.3
10.9%

Year Ended December 31, 2021
CSS

UBS

EES

$

604.5
7.9%

$

480.8
8.4%

428.4
8.8%

The following tables set forth supplemental information by reportable segment for the periods presented:

(In millions)

Depreciation and amortization
Capital expenditures

(In millions)

Depreciation and amortization
Capital expenditures

(In millions)

Depreciation and amortization
Capital expenditures

$

$

$

EES

43.3
10.3

EES

42.6
9.1

EES

56.0
4.5

$

$

$

Year Ended December 31, 2023
UBS

CSS

Corporate

$

71.7
7.9

$

25.0
19.5

41.3
54.6

Year Ended December 31, 2022
UBS

CSS

Corporate

$

68.4
4.8

$

23.3
9.2

44.7
76.4

Year Ended December 31, 2021
UBS

CSS

Corporate

$

82.9
3.2

$

22.4
5.2

37.2
41.9

$

$

$

Total

181.3
92.3

Total

179.0
99.4

Total

198.6
54.7

The following table sets forth total assets by reportable segment for the periods presented:

(In millions)

Total assets

(In millions)

Total assets

$

$

As of

December 31, 2023

EES

CSS

UBS

Corporate(1)

Total

4,553.6 $

5,626.6 $

3,908.5 $

972.2 $

15,060.9

As of

December 31, 2022

EES

CSS

UBS

Corporate(1)

Total

4,480.3 $

5,504.0 $

3,827.4 $

999.9 $

14,811.7

(1) Total assets for Corporate primarily consist of cash and cash equivalents, deferred income taxes, property, buildings and equipment,

capitalized cloud computing arrangement costs, operating lease assets, and pension assets.

The following table sets forth tangible long-lived assets, which include property, buildings and equipment, and operating

lease assets, by geographic area:

91

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(In millions)
United States
Canada
Other International(1)

Total

As of December 31,

2023

2022

$

$

906.5
182.1
96.2
1,184.8

$

$

790.1
167.0
70.7
1,027.8

(1) No individual other international country's tangible long-lived assets are material.

92

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

The following tables reconcile net income attributable to common stockholders to adjusted EBITDA and adjusted EBITDA

margin % by segment, which are non-GAAP financial measures, for the periods presented:

(In millions)

EES

CSS

UBS

Corporate

Total

Net income attributable to common stockholders $

668.7

$

531.1

$

712.5

$ (1,204.2)

$

708.1

Net (loss) income attributable to noncontrolling

Year Ended December 31, 2023

interests

Preferred stock dividends

Provision for income taxes(1)

Interest expense, net(1)

Depreciation and amortization

Other expense (income), net

Stock-based compensation expense(2)

Merger-related and integration costs(3)

Restructuring costs(4)

Adjusted EBITDA

(0.5)

—

—

—

43.3

10.1

5.8

—

—

1.6

—

—

—

71.7

74.2

5.2

—

—

—

—

—

—

25.0

(1.4)

3.2

—

—

(0.5)

57.4

225.9

389.3

41.3

(57.8)

31.3

55.4

16.7

0.6

57.4

225.9

389.3

181.3

25.1

45.5

55.4

16.7

$

727.4

$

683.8

$

739.3

$

(445.2)

$

1,705.3

Adjusted EBITDA margin %

8.4 %

9.6 %

11.2 %

(1) The reportable segments do not incur income taxes and interest expense as these costs are centrally controlled through the Corporate

tax and treasury functions.

(2) Stock-based compensation expense in the calculation of adjusted EBITDA for the year ended December 31, 2023 excludes $2.6 million

that is included in merger-related and integration costs.

(3) Merger-related and integration costs include integration and professional fees associated with the integration of Wesco and Anixter,
including digital transformation costs, as well as advisory, legal, and separation costs associated with the merger between the two
companies.

(4) Restructuring costs include severance costs incurred pursuant to an ongoing restructuring plan.

(In millions)

EES

CSS

UBS

Corporate

Total

Net income attributable to common stockholders $

801.3

$

527.0

$

648.5

$ (1,173.7)

$

803.1

Year Ended December 31, 2022

Net income attributable to noncontrolling
interests

Preferred stock dividends

Provision for income taxes(1)

Interest expense, net(1)

Depreciation and amortization

Other (income) expense, net

Stock-based compensation expense(2)

Merger-related and integration costs(3)

0.2

—

—

—

42.6

(2.0)

9.2

—

—

—

—

—

68.4

(1.3)

4.9

—

—

—

—

—

23.3

2.0

3.5

—

1.5

57.4

274.5

294.4

44.7

8.3

23.4

67.4

1.7

57.4

274.5

294.4

179.0

7.0

41.0

67.4

Adjusted EBITDA

$

851.3

$

599.0

$

677.3

$

(401.9)

$

1,725.6

Adjusted EBITDA margin %

9.6 %

9.4 %

10.9 %

(1) The reportable segments do not incur income taxes and interest expense as these costs are centrally controlled through the Corporate

tax and treasury functions.

(2) Stock-based compensation expense in the calculation of adjusted EBITDA for the year ended December 31, 2022 excludes $5.4 million

that is included in merger-related and integration costs.

(3) Merger-related and integration costs include integration and professional fees associated with the integration of Wesco and Anixter,
including digital transformation costs, as well as advisory, legal, and separation costs associated with the merger between the two
companies.

93

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

(In millions)

EES

CSS

UBS

Corporate

Total

Net income attributable to common stockholders $

543.6

$

394.0

$

412.7

$

(942.4)

$

408.0

Year Ended December 31, 2021

Net income attributable to noncontrolling
interests
Preferred stock dividends

Provision for income taxes(1)

Interest expense, net(1)

Depreciation and amortization

Other (income) expense, net(2)

Stock-based compensation expense(3)

Merger-related and integration costs(4)

Net gain on divestitures

Adjusted EBITDA

0.3

—

—

—

56.0

(1.9)

6.4

—

—

—

—

—

—

82.9

1.3

2.6

—

—

—

—

—

—

22.4

—

2.1

—

(8.9)

0.7

57.4

115.5

268.1

37.2

(47.6)

14.6

158.5

—

1.0

57.4

115.5

268.1

198.6

(48.1)

25.7

158.5

(8.9)

$

604.5

$

480.8

$

428.4

$

(338.0)

$

1,175.7

Adjusted EBITDA margin %

7.9 %

8.4 %

8.8 %

(1) The reportable segments do not incur income taxes and interest expense as these costs are centrally controlled through the Corporate

tax and treasury functions.

(2) Corporate other non-operating income in the calculation of adjusted EBITDA for the year ended December 31, 2021 includes a $36.6
million curtailment gain resulting from the remeasurement of the Company's pension obligations in the U.S. and Canada due to
amending certain terms of such defined benefit plans.

(3) Stock-based compensation expense in the calculation of adjusted EBITDA for the year ended December 31, 2021 excludes $5.1 million

that is included in merger-related and integration costs.

(4) Merger-related and integration costs include integration and professional fees associated with the integration of Wesco and Anixter,
including digital transformation costs, as well as advisory, legal, and separation costs associated with the merger between the two
companies.

Note: Adjusted EBITDA and Adjusted EBITDA margin % are non-GAAP financial measures that provide indicators of the Company's
performance and its ability to meet debt service requirements. Adjusted EBITDA is defined as earnings before interest, taxes, depreciation
and amortization before other non-operating expenses (income), non-cash stock-based compensation expense, merger-related and
integration costs, restructuring costs, and a net gain on the divestiture of Wesco's legacy utility and data communications businesses i n
Canada. Adjusted EBITDA margin % is calculated by dividing Adjusted EBITDA by net sales.

94

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal
financial officer, we conducted an evaluation of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-
15(e) and 15d-15(e)). Based on this evaluation, our principal executive officer and our principal financial officer concluded that
our disclosure controls and procedures were effective as of the end of the period covered by this report.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting as such
term is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Because of its inherent limitations, internal control over financial
reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are
subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with
the policies or procedures may deteriorate. Under the supervision and with the participation of our management, including our
principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our internal control
over financial reporting based on the updated framework in Internal Control — Integrated Framework (2013) (2013 Framework)
issued by the Committee of Sponsoring Organizations of the Treadway Commission on May 14, 2013. Based on our evaluation
under the 2013 Framework, our management concluded that our internal control over financial reporting was effective as of
December 31, 2023.

The effectiveness of the Company’s internal control over financial reporting as of December 31, 2023 has been audited by
PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report, which is included herein.

Changes in Internal Control Over Financial Reporting

During the last fiscal quarter of 2023, there were no changes in the Company’s internal control over financial reporting
identified in connection with management’s evaluation of the effectiveness of the Company’s internal control over financial
reporting that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial
reporting.

Item 9B. Other Information.

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

None.

95

Item 10. Directors, Executive Officers and Corporate Governance.

PART III

The information set forth under the captions “Board of Directors” and “Executive Officers” in our definitive Proxy Statement

for our 2024 Annual Meeting of Stockholders is incorporated herein by reference.

Codes of Business Conduct

We have adopted a Code of Business Conduct (“Code of Conduct”) that applies to our Directors, officers and employees that
is available on our website at www.wesco.com by selecting the “Our Company” tab followed by the “Leadership” heading. Any
amendment or waiver of the Code of Conduct for our officers or Directors will be disclosed promptly at that location on our
website.

We also have adopted a Code of Principles for Senior Financial Executives (“Senior Financial Executive Code”) that applies
to our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing
these functions. The Senior Financial Executive Code is also available at that same location on our website. We intend to timely
disclose any amendment or waiver of the Senior Financial Executive Code on our website and will retain such information on
our website as required by applicable SEC rules.

A copy of the Code of Conduct and/or Senior Financial Executive Code may also be obtained upon request by any stockholder,
without charge, by writing to us at WESCO International, Inc., 225 West Station Square Drive, Suite 700, Pittsburgh,
Pennsylvania 15219, Attention: Corporate Secretary.

The information required by Item 10 that relates to our Directors and executive officers, including the Audit Committee and
its financial expert, required by this item, is incorporated by reference from the information appearing under the captions
“Corporate Governance,” “Board and Committee Meetings” and “Security Ownership” in our definitive Proxy Statement for our
2024 Annual Meeting of Stockholders that is to be filed with the SEC pursuant to the Exchange Act within 120 days of the end
of our fiscal year on December 31, 2023.

Item 11. Executive Compensation.

The information set forth under the captions “Compensation Discussion and Analysis” and “Director Compensation” in our

definitive Proxy Statement for our 2024 Annual Meeting of Stockholders is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

The information set forth under the caption “Security Ownership” in our definitive Proxy Statement for our 2024 Annual

Meeting of Stockholders is incorporated herein by reference.

The following table provides information as of December 31, 2023 with respect to the shares of our common stock that may

be issued under our existing equity compensation plans:

Plan Category

Equity compensation plans approved by security holders

Equity compensation plans not approved by security holders
Total

Number of securities
to be issued
upon exercise of
outstanding options,
warrants and rights
1,643,838

—
1,643,838

Weighted-average
exercise price of
outstanding options,
warrants and rights

$

$

43.99

—
43.99

Number of securities
remaining available
for future issuance
under equity
compensation plans
1,877,701

—
1,877,701

Item 13. Certain Relationships and Related Transactions, and Director Independence.

The information set forth under the captions “Transactions with Related Persons” and “Corporate Governance” in our

definitive Proxy Statement for our 2024 Annual Meeting of Stockholders is incorporated herein by reference.

96

WESCO INTERNATIONAL, INC. AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(CONTINUED)

Item 14. Principal Accountant Fees and Services.

The information set forth under the caption “Independent Registered Public Accounting Firm Fees and Services” in our

definitive Proxy Statement for our 2024 Annual Meeting of Stockholders is incorporated herein by reference.

97

PART IV

Item 15. Exhibits and Financial Statement Schedule.

The financial statements, financial statement schedule and exhibits listed below are filed as part of this annual report:

(a)

(1) Financial Statements

The list of financial statements required by this item is set forth in Item 8, “Financial Statements and Supplementary
Data,” and is incorporated herein by reference.

(2) Financial Statement Schedule

Schedule II — Valuation and Qualifying Accounts

(b)

Exhibits

Exhibit No.
2.1

Description of Exhibit
Agreement and Plan of Merger, dated as of January 10,
2020, by and among WESCO International, Inc.,
Warrior Merger Sub, Inc. and Anixter International Inc.

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 2.1 to Wesco’s
Current Report on Form 8-K, dated January 13, 2020

3.1

3.2

3.3

3.4

3.5

4.1

4.2

4.3

4.4

4.5

4.6

4.7

Restated Certificate of Incorporation of WESCO
International, Inc.

Certificate of Amendment of Certificate of
Incorporation to Restated Certificate of Incorporation
of WESCO International, Inc.
Amended and Restated By-laws of WESCO
International, Inc., effective as of December 16, 2022

Certificate of Designations with respect to the Series A
Preferred Stock, dated June 22, 2020
Certificate of Designations of Series B Junior
Participating Preferred Stock of WESCO International,
Inc.

Indenture, dated November 26, 2013, among WESCO
Distribution, Inc. and U.S. Bank National Association,
as trustee
Form of 5.375% Unrestricted Note due 2021

Indenture, dated June 15, 2016, among WESCO
Distribution, Inc. and U.S. Bank National Association,
as trustee
Form of 5.375% Unrestricted Note due 2024

Indenture, dated June 12, 2020, between WESCO
International, Inc., WESCO Distribution, Inc. and U.S.
Bank National Association, as trustee

Form of 7.125% Senior Note due 2025

Form of 7.250% Senior Note due 2028

Incorporated by reference to Exhibit 3.1 to Wesco’s
Registration Statement on Form S-4, dated September
28, 2001 (No. 333-70404)
Incorporated by reference to Exhibit 3.1 to Wesco’s
Current Report on Form 8-K, dated May 29, 2014

Incorporated by reference to Exhibit 3.1 to Wesco's
Current Report on Form 8-K, dated December 16, 2022

Incorporated by reference to Exhibit 3.1 to Wesco’s
Current Report on Form 8-K, dated June 22, 2020
Incorporated by reference to Exhibit 3.1 to Wesco’s
Current Report on Form 8-K, dated July 17, 2020

Incorporated by reference to Exhibit 4.1 to Wesco’s
Current Report on Form 8-K, dated November 27,
2013
Incorporated by reference to Exhibit A-2 to Exhibit 4.1
to Wesco’s Current Report on Form 8-K, dated
November 27, 2013

Incorporated by reference to Exhibit 4.1 to Wesco’s
Current Report on Form 8-K, dated June 15, 2016

Incorporated by reference to Exhibit A-2 to Exhibit 4.1
to Wesco’s Current Report on Form 8-K, dated June
15, 2016

Incorporated by reference to Exhibit 4.1 to Wesco’s
Current Report on Form 8-K, dated June 12, 2020

Incorporated by reference to Exhibit A-1 to Exhibit 4.1
to Wesco’s Current Report on Form 8-K, dated June
12, 2020

Incorporated by reference to Exhibit A-2 to Exhibit 4.1
to Wesco’s Current Report on Form 8-K, dated June
12, 2020

98

4.10

4.11

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

Exhibit No.
4.8

Description of Exhibit
Deposit Agreement, dated as of June 19, 2020, among
WESCO International, Inc., Computershare Inc. and
Computershare Trust Company, N.A., jointly as the
Depositary, and the holders from time to time of the
Depositary Receipts described therein

4.9

Form of Depositary Receipt

Rights Agreement, dated as of July 17, 2020, between
WESCO International, Inc. and Computershare Trust
Company, N.A., as rights agent, which includes the
form of Certificate of Designations as Exhibit A, the
form of Right Certificate as Exhibit B and the
Summary of Rights to Purchase Preferred Shares as
Exhibit C

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 4.2 to Wesco’s
Registration Statement on Form 8-A, dated June 19,
2020

Incorporated by reference to Exhibit A to Exhibit 4.2 to
Wesco’s Registration Statement on Form 8-A, dated
June 19, 2020
Incorporated by reference to Exhibit 4.1 to Wesco’s
Current Report on Form 8-K, dated July 17, 2020

Description of WESCO International, Inc.’s securities

Filed herewith

1999 Deferred Compensation Plan for Non-Employee
Directors, as amended and restated September 20, 2007

Form of Stock Appreciation Rights Agreement for
Employees

Amended and Restated Employment Agreement, dated
as of September 1, 2009, between WESCO
International Inc. and John J. Engel
1999 Long-Term Incentive Plan, as restated effective as
of May 30, 2013
Form of Stock Appreciation Rights Agreement for
Employees

Fourth Amended and Restated Receivables Purchase
Agreement, dated as of September 24, 2015, by and
among WESCO Receivables Corp., WESCO
Distribution, Inc., the various Purchaser Groups from
time to time party thereto and PNC Bank, National
Association, as Administrator

Form of Director and Officer Indemnification
Agreement, entered among WESCO International, Inc.
and certain of its executive officers and directors listed
on a schedule attached thereto

Incorporated by reference to Exhibit 10.5 to Wesco's
Annual Report on Form 10-K for the year ended
December 31, 2011
Incorporated by reference to Exhibit 10.7 to Wesco's
Annual Report on Form 10-K for the year ended
December 31, 2011
Incorporated by reference to Exhibit 10.2 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
September 30, 2009
Incorporated by reference to Appendix A to the Proxy
Statement filed on Schedule 14A on April 16, 2013
Incorporated by reference to Exhibit 10.33 to Wesco's
Annual Report on Form 10-K for the year ended
December 31, 2014
Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated September 24,
2015

Incorporated by reference to Exhibit 10.24 to Wesco's
Annual Report on Form 10-K for the year ended
December 31, 2015

First Amendment to Fourth Amended and Restated
Receivables Purchase Agreement, dated as of
December 18, 2015

Incorporated by reference to Exhibit 10.1 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2016

Second Amendment to Fourth Amended and Restated
Receivables Purchase Agreement, dated as of April 19,
2016

Incorporated by reference to Exhibit 10.2 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2016

10.10

10.11

Third Amendment to Fourth Amended and Restated
Receivables Purchase Agreement, dated as of May 10,
2016

Incorporated by reference to Exhibit 10.3 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2016

Fourth Amendment to Fourth Amended and Restated
Receivables Purchase Agreement, dated as of May 27,
2016

Incorporated by reference to Exhibit 10.4 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2016

99

Exhibit No.
10.12

Description of Exhibit
Fifth Amendment to Fourth Amended and Restated
Receivables Purchase Agreement, dated as of
November 8, 2017

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 10.1 to Wesco's
Current Report on Form 8-K, dated November 8, 2017

10.13

10.14

10.15

10.16

10.17

10.18

10.19

10.20

10.21

10.22

10.23

10.24

10.25

10.26

Sixth Amendment to Fourth Amended and Restated
Receivables Agreement, dated as of December 29,
2017

Incorporated by reference to Exhibit 10.22 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2017

Form of Non-Employee Director Restricted Stock Unit
Agreement

Form of Restricted Stock Unit Agreement for
Employees

Form of Stock Appreciation Rights Agreement for
Employees

Form of Notice of Performance Share Award Under the
WESCO International, Inc. 1999 Long-Term Incentive
Plan, as amended May 31, 2017

1999 Long-Term Incentive Plan, as restated effective as
of May 31, 2017
Seventh Amendment to Fourth Amended and Restated
Receivables Agreement, dated as of April 23, 2018

Eighth Amendment to Fourth Amended and Restated
Receivables Agreement, dated as of December 21,
2018

Third Amended and Restated Credit Agreement, dated
as of September 26, 2019 among WESCO Distribution,
Inc., the other U.S. Borrowers party thereto, WESCO
Distribution Canada LP, the other Canadian Borrowers
party thereto, WESCO International, Inc., the Lenders
party thereto, JPMorgan Chase Bank, N.A., as
Administrative Agent, and JPMorgan Chase Bank,
N.A., Toronto Branch, as Canadian Administrative

Incorporated by reference to Exhibit 10.23 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2017
Incorporated by reference to Exhibit 10.24 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2017
Incorporated by reference to Exhibit 10.25 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2017
Incorporated by reference to Exhibit 10.26 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2017

Incorporated by reference to Appendix A to the Proxy
Statement filed on Schedule 14A on April 17, 2017
Incorporated by reference to Exhibit 10.1 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
September 30, 2018
Incorporated by reference to Exhibit 10.30 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2018

Incorporated by reference to Exhibit 10.1 to Wesco’s
Current Report on Form 8-K, dated September 30,
2019

Ninth Amendment to Fourth Amended and Restated
Receivables Purchase Agreement, dated as of
September 26, 2019

Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated September 30,
2019

Fourth Amended and Restated Credit Agreement, dated
as of June 22, 2020, by and among WESCO
Distribution, Inc., the other U.S. borrowers party
thereto, WESCO Distribution Canada LP, the other
Canadian borrowers party thereto, WESCO
International, Inc., the lenders party thereto and
Barclays Bank PLC., as administrative agent

Fifth Amended and Restated Receivables Purchase
Agreement, dated as of June 22, 2020, by and among
WESCO Receivables Corp., WESCO Distribution,
Inc., the various purchaser groups from time to time
party thereto and PNC Bank, National Association, as
administrator.
Form of Restricted Stock Unit Award Agreement
(Special Awards)
WESCO International, Inc. Change in Control
Severance Plan

100

Incorporated by reference to Exhibit 10.1 to Wesco’s
Current Report on Form 8-K, dated June 24, 2020

Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated June 24, 2020

Incorporated by reference to Exhibit 10.1 to Wesco’s
Current Report on Form 8-K, dated June 25, 2020
Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated June 25, 2020

10.28

10.29

10.30

10.31

10.32

10.33

10.34

10.35

10.36

10.37

10.38

10.39

Exhibit No.
10.27

Description of Exhibit
Agreement, dated June 22, 2020, memorializing terms
of employment of David Schulz by WESCO
International, Inc.

Agreement, dated June 22, 2020, memorializing terms
of employment of Nelson Squires by WESCO
International, Inc.

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 10.1 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2020
Incorporated by reference to Exhibit 10.2 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2020

Agreement, dated June 22, 2020, memorializing terms
of employment of Christine Wolf by WESCO
International, Inc.

Incorporated by reference to Exhibit 10.3 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2020

Agreement, dated June 22, 2020, memorializing terms
of employment of Diane Lazzaris by WESCO
International, Inc.

Incorporated by reference to Exhibit 10.4 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2020

First Amendment to Fourth Amended and Restated
Credit Agreement, dated as of December 14, 2020,
among WESCO Distribution, the other U.S. borrowers
party thereto, WESCO Distribution Canada LP, the
other Canadian borrowers party thereto, WESCO, the
lenders party thereto and Barclays Bank PLC, as
administrative agent.

First Amendment to Fifth Amended and Restated
Receivables Purchase Agreement, dated December 14,
2020 (the “Receivables Amendment”), by and among
WESCO Receivables Corp., WESCO Distribution, the
various purchaser groups from time to time party
thereto and PNC Bank, National Association, as
administrator.

Incorporated by reference to Exhibit 10.40 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2020

Incorporated by reference to Exhibit 10.41 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2020

WESCO International, Inc. 2021 Omnibus Incentive
Plan
Agreement, dated May 28, 2020, memorializing terms
of employment of Theodore Dosch by WESCO
International, Inc.

Incorporated by reference to Appendix A to the Proxy
Statement on Schedule 14A, filed on April 12, 2021
Incorporated by reference to Exhibit 10.1 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
March 31, 2021

Second Amendment to Fifth Amended and Restated
Receivables Purchase Agreement

Form of WESCO International, Inc. 2021 Omnibus
Incentive Plan Restricted Stock Unit Award Agreement
(for employees)

Form of WESCO International, Inc. 2021 Omnibus
Incentive Plan Restricted Stock Unit Award Agreement
(for non-employee directors)

Form of WESCO International, Inc. 2021 Omnibus
Incentive Plan Stock Appreciation Right Award
Agreement

Third Amendment to Fifth Amended and Restated
Receivables Purchase Agreement, dated as of June 1,
2021 (the “Receivables Amendment”), by and among
WESCO Receivables Corp., WESCO Distribution,
Inc., the various purchaser groups from time to time
party thereto, and PNC Bank, National Association, as
administrator

Incorporated by reference to Exhibit 10.2 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
March 31, 2021
Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated May 27, 2021

Incorporated by reference to Exhibit 10.3 to Wesco’s
Current Report on Form 8-K, dated May 27, 2021

Incorporated by reference to Exhibit 10.4 to Wesco’s
Current Report on Form 8-K, dated May 27, 2021

Incorporated by reference to Exhibit 10.1 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
June 30, 2021

10.40

Form of WESCO International, Inc. 2021 Omnibus
Incentive Plan Nonqualified Stock Option Award
Agreement

Incorporated by reference to Exhibit 10.1 to Wesco’s
Current Report on Form 8-K, dated February 16, 2022

101

Exhibit No.
10.41

10.42

10.43

10.44

10.45

10.46

10.47

10.48

10.49

10.50

Description of Exhibit
Form of WESCO International, Inc. 2021 Omnibus
Incentive Plan Performance Share Unit Award
Agreement

Second Amendment to Fourth Amended and Restated
Credit Agreement, dated as of March 1, 2022, by and
among WESCO Distribution, Inc., the other U.S.
borrowers party thereto, WESCO Distribution Canada
LP, the other Canadian borrowers party thereto,
WESCO International, Inc., the lenders party thereto
and Barclays Bank PLC, as administrative agent

Fourth Amendment to Fifth Amended and Restated
Receivables Purchase Agreement, dated as of March 1,
2022, by and among WESCO Distribution, Inc.,
WESCO Receivables Corp., the various purchaser
groups party thereto and PNC Bank, National
Association, as administrator
Agreement, dated May 28, 2020, memorializing terms
of employment of William Geary by WESCO
International, Inc.

Third Amendment to Fourth Amended and Restated
Credit Agreement, dated as of August 2, 2022, by and
among WESCO Distribution, Inc., the other U.S.
borrowers party thereto, WESCO Distribution Canada
LP, the other Canadian borrowers party thereto,
WESCO International, Inc., the lenders party thereto
and Barclays Bank PLC., as administrative agent.

Fifth Amendment to Fifth Amended and Restated
Receivables Purchase Agreement, dated as of August 2,
2022, by and among WESCO Distribution, Inc.,
WESCO Receivables Corp., the various purchaser
groups party thereto and PNC Bank, National
Association, as administrator.
Fourth Amendment to Fourth Amended and Restated
Credit Agreement, dated as of October 31, 2022, by
and among WESCO Distribution, Inc., the other U.S.
borrowers party thereto, WESCO Distribution Canada
LP, the other Canadian borrowers party thereto,
WESCO International, Inc., the lenders party thereto
and Barclays Bank PLC., as administrative agent.

Sixth Amendment to Fifth Amended and Restated
Receivables Purchase Agreement, dated as of October
31, 2022, by and among WESCO Distribution, Inc.,
WESCO Receivables Corp., the various purchaser
groups party thereto and PNC Bank, National
Association, as administrator.

Prior Filing or Sequential Page Number
Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated February 16, 2022

Incorporated by reference to Exhibit 10.1 to Wesco’s
Current Report on Form 8-K, dated March 1, 2022

Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated March 1, 2022

Incorporated by reference to Exhibit 10.1 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
March 31, 2022

Incorporated by reference to Exhibit 10.1 to Wesco’s
Current Report on Form 8-K, dated August 2, 2022

Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated August 2, 2022

Incorporated by reference to Exhibit 10.1 to Wesco’s
Current Report on Form 8-K, dated October 31, 2022

Incorporated by reference to Exhibit 10.2 to Wesco’s
Current Report on Form 8-K, dated October 31, 2022

WESCO International, Inc. Non-Employee Directors’
Deferred Compensation Plan, effective as of December
8, 2022

Incorporated by reference to Exhibit 10.49 to Wesco’s
Annual Report on Form 10-K for the year ended
December 31, 2022

Agreement, dated October 20, 2020, memorializing
terms of employment of Akash Khurana by WESCO
International, Inc.

Incorporated by reference to Exhibit 10.1 to Wesco’s
Quarterly Report on Form 10-Q for the quarter ended
March 31, 2023

102

Exhibit No.
21.1

Description of Exhibit
Subsidiaries of WESCO International, Inc.

Prior Filing or Sequential Page Number
Filed herewith

23.1

31.1

31.2

32.1

32.2

97

101

104

Consent of Independent Registered Public Accounting
Firm

Filed herewith

Certification of Chief Executive Officer pursuant to
Rule 13a-14(a) promulgated under the Exchange Act

Certification of Chief Financial Officer pursuant to
Rule 13a-14(a) promulgated under the Exchange Act

Certification of Chief Executive Officer pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

Certification of Chief Financial Officer pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002

WESCO International, Inc. Compensation Recovery
Policy

Interactive Data File

Cover Page Interactive Data File (embedded within the
Inline XBRL document)

Filed herewith

Filed herewith

Furnished herewith

Furnished herewith

Filed herewith

Filed herewith

Filed herewith

The registrant hereby agrees to furnish supplementally to the Commission, upon request, a copy of any omitted schedule to any
of the agreements contained herein.

Copies of exhibits may be retrieved electronically at the U.S. Securities and Exchange Commission’s home page at www.sec.gov.
Exhibits will also be furnished without charge by writing to David S. Schulz, Executive Vice President and Chief Financial Officer,
225 West Station Square Drive, Suite 700, Pittsburgh, Pennsylvania 15219. Requests may also be directed to (412) 454-2200.

103

Schedule II—Valuation and Qualifying Accounts

Allowance for expected credit losses
Year Ended December 31, 2023
Year Ended December 31, 2022
Year Ended December 31, 2021

Balance at
beginning
of period

Charged to

earnings

Charged to
other
accounts(1)

(In millions)

Balance at

Deductions(2)

end of period

$

$

46.5
41.7
23.9

$

18.6
18.0
12.9

— $
—
13.7

(9.2) $

(13.2)
(8.8)

55.9
46.5
41.7

(1) For the year ended December 31, 2021, the amount charged to other accounts primarily relates to the acquisition of Anixter.

(2) Includes a reduction in the allowance for expected credit losses due to the write-off of trade accounts receivable.

Allowance for deferred tax assets

Year Ended December 31, 2023
Year Ended December 31, 2022
Year Ended December 31, 2021

Balance at
beginning
of period

Charged to

earnings

Charged to
other
accounts

(In millions)

Balance at

Deductions(1)

end of period

$

$

33.7
46.3
60.6

$

7.7
5.8
1.1

— $
—
1.8

(17.9) $
(18.4)
(17.3)

23.5
33.7
46.3

(1) For the year ended December 31, 2023, deductions primarily relate to a decrease in the valuation allowance recorded against
deferred tax assets related to certain foreign jurisdictions. For the years ended December 31, 2022 and 2021, deductions
primarily relate to a decrease in the valuation allowance recorded against deferred tax assets related to foreign tax credit
carryforwards.

Item 16. Form 10-K Summary.

Not applicable.

104

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused

this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SIGNATURES

WESCO INTERNATIONAL, INC.

By:

/s/ JOHN J. ENGEL
Name:
Title:
Date:

John J. Engel
Chairman, President and Chief Executive Officer
February 20, 2024

WESCO INTERNATIONAL, INC.

By:

/s/ DAVID S. SCHULZ
Name: David S. Schulz
Title:
Date:

Executive Vice President and Chief Financial Officer
February 20, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following

persons on behalf of the registrant and in the capacities and on the dates indicated.

105

Signature

Title

Date

/s/ JOHN J. ENGEL
John J. Engel

Chairman, President and Chief Executive Officer
(Principal Executive Officer)

February 20, 2024

/s/ DAVID S. SCHULZ

David S. Schulz

Executive Vice President and Chief Financial
Officer
(Principal Financial Officer)

February 20, 2024

/s/ MATTHEW S. KULASA

Matthew S. Kulasa

Senior Vice President, Corporate Controller, and
Chief Accounting Officer
(Principal Accounting Officer)

February 20, 2024

February 20, 2024

February 20, 2024

February 20, 2024

February 20, 2024

February 20, 2024

February 20, 2024

February 20, 2024

February 20, 2024

February 20, 2024

/s/ GLYNIS A. BRYAN
Glynis A. Bryan

/s/ ANNE M. COONEY
Anne M. Cooney

/s/ MATTHEW J. ESPE
Matthew J. Espe

/s/ BOBBY J. GRIFFIN
Bobby J. Griffin

/s/ SUNDARAM NAGARAJAN
Sundaram Nagarajan

/s/ STEVEN A. RAYMUND
Steven A. Raymund

/s/ JAMES L. SINGLETON
James L. Singleton

/s/ EASWARAN SUNDARAM
Easwaran Sundaram

/s/ LAURA K. THOMPSON
Laura K. Thompson

Director

Director

Director

Director

Director

Director

Director

Director

Director

106

[THIS PAGE INTENTIONALLY LEFT BLANK]

Non-GAAP Reconciliations   
(In millions, except for per share data and ratios)

Adjusted EBITDA: 

            2019  

    2020         2021         2022         2023

Income from operations   

Merger-related and integration costs 

Restructuring costs 

Accelerated trademark amortization 

Merger-related fair value adjustments 

Out-of-period adjustment 

Net gain on sale of assets and divestitures 

Adjusted income from operations 

Stock-based compensation 

Depreciation and amortization 

Less: accelerated trademark amortization  

Adjusted EBITDA  

$346 

        $347             $802           $1,438           $1,406
          158                     67                    55 

 3                   132 

    — 

   — 

    — 
    — 
    — 

            —                   — 

      — 

             17

               2
     10 
            —                  32 
       —                      — 
           44                    — 
       — 
           19                    — 
              — 
              — 
       (20)                  (9)                      — 

    349 
       19 

            522                983 
  26 
              17 

   1,515              1,480
                 46
         41 

      62                   122                199                  179 

              181 

        — 

                (2)
      $431                $660         $1,176           $1,726           $1,705

               —                (32) 

      (10) 

Adjusted net income attributable to common stockholders: 

Net income attributable to WESCO International, Inc. 

Adjustments to income from operations, net of tax  

 $223                $101             $465               $860               $766 
         3                  133                139                    57                    54 

Gain on curtailment of defined benefit pension plans, net of tax 

Pension settlement cost, net of tax 

Adjusted net income attributable to WESCO International, Inc. 

Preferred stock dividends 

       —                      —                (28)                     — 
— 
               —                    —                     —                       2
      — 
    226                  234                576                  917                  821 
         57

            57                    57 

       30   

— 

Adjusted net income attributable to common stockholders

 $226               $204              $519               $860                $764

Adjusted Diluted EPS: 

Diluted share count 

Adjusted diluted EPS

Financial Leverage Ratio: 

   43.5                  46.6              52.0                52.4                52.3
                 $5.20              $4.37            $9.98           $16.42           $14.60

Adjusted EBITDA1 
Total debt, net of cash 
Financial leverage ratio1 
1 Adjusted EBITDA and financial leverage ratio for the year ended December 31, 2020 are on a pro forma basis which gives effect to the 
combination of Wesco and Anixter as if it had occurred at the beginning of such period.

             5.3 

     2.7 

3.9 

        2.9                   2.8

   $431               $855          $1,176           $1,726              1,705
                 1,142              4,536            4,568              4,947              4,841

 
 
 
 
          
             
 
 
 
 
 
 
 
 
 
 
 
                         
 
 
 
 
 
 
 
 
 
 
 
 
 
 
          
 
  
 
   
    
    
 
  
 
 
  
     
 
 
 
     
 
 
 
 
  
 
 
 
 
 
 
 
 
            2019  

    2020         2021         2022         2023

$346 

        $347             $802           $1,438           $1,406

 3                   132 

          158                     67                    55 

    — 

   — 

    — 

    — 

    — 

    349 

       19 

            —                   — 

      — 

             17

            —                  32 

     10 

               2

           44                    — 

       —                      — 

           19                    — 

       — 

              — 

       (20)                  (9)                      — 

              — 

            522                983 

   1,515              1,480

              17 

  26 

         41 

                 46

      62                   122                199                  179 

              181 

        — 

               —                (32) 

      (10) 

                (2)

      $431                $660         $1,176           $1,726           $1,705

 $223                $101             $465               $860               $766 

         3                  133                139                    57                    54 

       —                      —                (28)                     — 

— 

      — 

               —                    —                     —                       2

    226                  234                576                  917                  821 

— 

       30   

            57                    57 

         57

 $226               $204              $519               $860                $764

   43.5                  46.6              52.0                52.4                52.3

                 $5.20              $4.37            $9.98           $16.42           $14.60

   $431               $855          $1,176           $1,726              1,705

                 1,142              4,536            4,568              4,947              4,841

     2.7 

             5.3 

3.9 

        2.9                   2.8

Corporate Information

Corporate Headquarters

WESCO International, Inc.  
Suite 700  
225 West Station Square Drive  
Pittsburgh, PA 15219-1122  
Phone: 412.454.2200  
www.Wesco.com

Investor Relations

For questions regarding Wesco, contact Investor  
Relations at InvestorRelations@wesco.com. A copy  
of the Company’s Annual Report on Form 10-K or  
other financial information may be requested  
through our website (www.Wesco.com) or by  
contacting Investor Relations.

Common Stock

Wesco is listed on the New York Stock Exchange  
under the ticker symbol WCC.

Annual Meeting

Annual Meeting of Stockholders will be held on  
May 23, 2024 at 2 p.m. EDT, hosted virtually at  
www.virtualshareholdermeeting.com/WCC2024

Transfer Agency

Computershare 
Toll: +1.201.680.6578 
Toll Free: 877.264.3927 
TDD for Hearing Impaired: 800.231.5469 
Website address:  www.computershare.com/investor

By Regular Mail: 
PO Box 43006 
Providence, RI 02940-3006 
United States

Overnight Delivery: 
150 Royall Street, Suite 101 
Canton, MA 02021 
United States

Independent Registered Public Accounting Firm

PricewaterhouseCoopers LLP Pittsburgh, PA

 
  
 
   
    
    
 
  
 
 
  
     
 
 
 
     
 
 
 
 
  
 
 
 
 
 
 
 
 
Corporate Governance – Board of Directors

John J. Engel 
Chairman, President,  
and Chief Executive Officer 
Wesco International

James L. Singleton 
Chairman  
Cürex Group Holdings, LLC

Glynis A. Bryan 
Chief Financial Officer  
Insight Enterprises, Inc.

Matthew J. Espe 
Director, Advisor  
and Investor

Sundaram Nagarajan 
President and  
Chief Executive Officer  
Nordson Corporation

Easwaran Sundaram 
Operating Executive 
Tailwind Capital

Anne M. Cooney 
Former President, Process 
Industries and Drives Division 
Siemens Industry, Inc.

Bobby J. Griffin 
Former President,  
International Operations 
Ryder System, Inc.

Steven A. Raymund 
Former Chairman and  
Chief Executive Officer 
Tech Data Corporation

Laura K. Thompson 
Former Executive Vice President 
and Chief Financial Officer 
The Goodyear Tire and  
Rubber Company

Executive Officers 
(as of December 31, 2023)

John J. Engel 
Chairman, President, and  
Chief Executive Officer

James F. Cameron 
Executive Vice President and  
General Manager, Utility and  
Broadband Solutions

William C. Geary, II 
Executive Vice President and  
General Manager, Communications  
and Security Solutions

Ingenuity delivered.

Akash Khurana 
Executive Vice President and 
Chief Information and Digital Officer

David S. Schulz 
Executive Vice President and  
Chief Financial Officer

Diane E. Lazzaris 
Executive Vice President  
and General Counsel 

Hemant Porwal 
Executive Vice President,  
Supply Chain and Operations

Nelson J. Squires, III 
Executive Vice President and  
General Manager, Electrical and  
Electronic Solutions

Christine A. Wolf 
Executive Vice President and 
Chief Human Resources Officer

Wesco International
225 West Station Square Drive, Suite 700
Pittsburgh, Pennsylvania 15219-1122
412.454.2200  I  Wesco.com

Ingenuity delivered.

This product is made of material from  
well-managed FSC®-certified forests, recycled
materials, and other controlled sources.