What changed in this filing

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Item 1. Business

2026-02-20 compared with 2025-02-21 · 104 added, 139 removed, 3 unchanged (99% of the section changed)

United States Cellular Corporation (UScellular) provides wireless telecommunications services to customers with 4.4 million retail connections in portions of 21 states collectively representing a total population of 33 million.

During the second quarter of 2024, UScellular modified its reporting structure due to the planned disposal of its wireless operations and, as a result, disaggregated its operations into two reportable segments – Wireless and Towers.

All of its operating markets are in the United States.

UScellular is a majority-owned subsidiary of Telephone and Data Systems, Inc.

As of December 31, 2024, TDS owns 83% of UScellular’s Common Shares, has the voting power to elect all of the directors of UScellular and controls 96% of the voting power in matters other than the electi on of directors of UScellular.

The map below highlights UScellular’s areas of operations.

Operating Strategy, Recent Developments and Community Focus

UScellular’s strategy is to attract and retain customers by providing a high-quality network, outstanding customer service and competitive devices, plans and pricing - all provided with a community focus.

UScellular operates a regional wireless network.

UScellular’s interests in wireless spectrum licenses include both direct interests whereby UScellular is the licensee and investment interests in entities which are licensees;

together, these direct and investment interests involve operating and non-operating wireless spectrum licenses covering portions of 30 states and a total population of approximately 51 million as of December 31, 2024.

UScellular owns and operates towers which support UScellular's wireless network.

UScellular also leases space on its owned towers to other wireless service providers.

As of December 31, 2024, UScellular owned 4,409 towers with 2,444 third-party colocations.

On August 4, 2023, TDS and UScellular announced that the Boards of Directors of both companies decided to initiate a process to explore a range of strategic alternatives for UScellular.

On May 28, 2024, UScellular announced that its Board of Directors unanimously approved the execution of a Securities Purchase Agreement (Securities Purchase Agreement) by and among TDS, UScellular, T-Mobile US, Inc.

(T-Mobile) and USCC Wireless Holdings, LLC, pursuant to which, among other things, UScellular agreed to sell its wireless operations and select spectrum assets to T-Mobile for a purchase price, subject to adjustments, as specified in the Securities Purchase Agreement, of $4,400 million, which is payable in a combination of cash and the assumption of up to approximately $2,000 million in debt.

The purchase price includes $100 million contingent on the satisfaction of certain financial and operational metrics.

The purchase price also includes $400 million allocated to certain wireless spectrum licenses held by entities in which UScellular is a non-controlling limited partner.

The closing with respect to these wireless spectrum licenses is contingent upon UScellular's purchase, which is pending receipt of regulatory approval, of the remaining equity in the entities that UScellular does not currently own.

The Securities Purchase Agreement also contemplates, among other things, a Short-Term Spectrum Manager Lease Agreement and Short-Term Spectrum Manager Sublease Agreements that will become effective at the closing date, which provide T-Mobile with an exclusive license to use certain UScellular spectrum assets and leases at no cost for up to one-year for the sole purpose of providing continued, uninterrupted service to customers.

The sale of the wireless business to T-Mobile is expected to close in mid-2025, subject to the receipt of regulatory approvals and the satisfaction of customary closing conditions.

On October 17, 2024, UScellular, and certain subsidiaries of UScellular, entered into a License Purchase Agreement (Verizon Purchase Agreement) with Verizon Communications Inc.

(Verizon) to sell certain AWS, Cellular and PCS wireless spectrum licenses and agreed to grant Verizon certain rights to lease such licenses prior to the transaction close for total proceeds of $1,0 00 million.

As of December 31, 2024, the book value of the wireless spectrum licenses to be sold was $586 million .

The transaction is subject to regulatory approval and other customary closing conditions, and is contingent on the closing of the T-Mobile transaction and the termination of the T-Mobile Short-Term Spectrum Manager Lease Agreement.

On November 6, 2024, UScellular, and certain subsidiaries of UScellular, entered into a License Purchase Agreement (AT&T Purchase Agreement) with New Cingular Wireless PCS, LLC (AT&T), a subsidiary of AT&T Inc., to sell certain 3.45 GHz and 700 MHz wireless spectrum licenses and agreed to grant AT&T certain rights to lease and sub-lease such licenses prior to the transaction close for total proceeds of $1,018 million, subject to certain purchase price adjustments.

As of December 31, 2024 , the book value of the wireless spectrum licenses to be sold was $859 million.

The transaction is subject to regulatory approval and other customary closing conditions and substantially all of the licenses subject to the transaction are contingent on the closing of the T-Mobile transaction.

The purchase price includes $232 million allocated to certain wireless spectrum licenses that are held by an entity in which UScellular is a non-controlling limited partner.

The strategic alternatives review process is ongoing as UScellular works toward closing the transactions signed during 2024, including the T-Mobile, Verizon and AT&T transactions and continues to seek to opportunistically monetize its spectrum assets that are not subject to the Securities Purchase Agreement, the Verizon Purchase Agreement, or the AT&T Purchase Agreement.

As part of its business development strategy, UScellular may periodically be engaged in negotiations relating to strategic partnerships and/or the acquisition, exchange or disposition of companies, strategic properties, spectrum licenses and/or investment interests.

UScellular has a longstanding commitment to supporting its local communities through donations and volunteerism.

UScellular focuses its Corporate Social Responsibility program on addressing gaps in STEM (Science, Technology, Engineering and Math) education and connecting tomorrow’s innovators with the resources they need today to help shape their future opportunities.

UScellular serves its local communities through exclusive partnerships with acclaimed national nonprofit partners.

In 2024, UScellular continued exploring ways to leverage its assets, brand, partnerships, and resources to close the digital divide with a focus on helping to ensure youth in its markets have reliable and fast internet access in school and at home through the After School Access Project .

In addition, UScellular continues to participate in the TDS Environmental, Social and Governance (ESG) program.

UScellular believes in serving as a good steward of the environment and enacting governance practices that align with its corporate values and commitment to its customers, associates, communitie s and shareholders.

Customers, Services, Products and Seasonality

UScellular focuses on consumer, business and government customers located in its operating markets.

These customers are served primarily through UScellular’s retail stores and digital platform, as well as its direct and indirect sales channels.

UScellular provides a wide variety of wireless services accessible on a broad range of devices.

Customers can obtain wireless services on a postpaid or prepaid basis.

A single account may include monthly wireless services for a variety of handsets, connected devices and IoT Solutions.

A postpaid connection represents an individual line of service for a device for which a customer is generally billed one month in advance for a monthly access charge in return for access to and usage of network services.

UScellular’s prepaid service enables individuals to obtain services without credit verification by paying for all services in advance.

Approximately 90 % of retail connections were postpaid connections as of December 31, 2024.

UScellular offers various service plans with nationwide coverage tailored to the needs of customers.

Depending on those needs, service plans may include features related to, among other items:

unlimited or metered voice and data;

high-definition video features;

the ability to use a device as a Wi-Fi hotspot;

international voice, text, and data;

and varying data rates depending on the plan and usage on that plan.

Service offerings vary from time to time based on customer needs, technology changes and market conditions - and may be provided as standard plans or as part of limited time promotional offers.

UScellular offers home and business internet throughout the footprint via fixed wireless access.

Options include an in-home self-installed device and a self-installation device mounted on the external side of a window.

UScellular offers advanced wireless solutions to consumers and business and government customers including an expansive suite of connected Internet of things (IoT) solutions and software applications across the categories of monitor and control (e.g., sensors and cameras), business automation/operations (e.g., e-forms, office solutions), communication (e.g., enterprise messaging, unified communications, primary and back-up internet connectivity for business continuity), fleet/asset/video management solutions, security solutions, private cellular networks (PCN) and custom and bespoke end-to-end IoT solutions et al.

The business organization also offers an extensive selection of professional and managed services including staff augmentation, IPX services, and SIM management.

Lastly, for first responders, UScellular offers a suite of critical connectivity solutions that includes Wireless Priority Services (WPS) and Quality Priority and Preemption (QPP) options.

UScellular offers a comprehensive range of devices such as smartphones and other handsets, tablets, wearables, mobile hotspots, fixed wireless home internet, and IoT devices.

In addition, UScellular also offers a wide range of accessories, including wireless essentials such as cases, screen protectors, cables, chargers, memory cards and consumer electronics such as Bluetooth audio, wi-fi enabled cameras, and networking products.

UScellular allows customers to purchase certain devices and accessories on installment plans, allowing for customers to pay over a specified period of time.

UScellular also offers services that enable customers to replace or repair their devices, including the Device Protection+ program, which provides as soon as next-day delivery of a replacement device for damaged, lost and stolen devices, and AppleCare services for Apple iOS customers.

UScellular's Device Protection+ Advanced program also includes local or on-demand repair for eligible devices.

In addition, UScellular offers a Trade-In program through which UScellular acquires customers' used equipment in exchange for promotional or bill credit.

UScellular purchases devices and accessory products from a number of original equipment manufacturers and distributors.

UScellular manages relationships with its suppliers to ensure its customers have access to the industry's latest devices, to obtain best possible pricing, and to identify opportunities for promotional support from its suppliers.

UScellular contracts with third-party providers for its product warehousing, distribution and direct customer fulfillment activities.

UScellular also contracts with third-party providers for its device service programs.

Seasonality in operating expenses may cause operating income to vary from quarter to quarter.

UScellular’s operating expenses tend to be higher in the fourth quarter due to increased marketing and promotional activities during the holiday season.

Sales and Distribution Channels

UScellular supports a multi-faceted distribution program, including retail sales, direct sales, telesales, ecommerce, and indirect sales including resellers, independent agents and a third-party national retailer.

Company retail store locations are designed to market wireless services and products to the consumer and small business segments in a setting familiar to these types of customers.

Direct sales representatives and the indirect channel sell traditional wireless services as well as IoT and other specialized products and solutions to medium and large-sized businesses and governmental entities.

Additionally, the telesales and ecommerce channels enable customers to purchase services and devices via phone and online, respectively.

UScellular has relationships with exclusive and non-exclusive agents (collectively “agents”), which are independent businesses that obtain and service customers for UScellular on a commission basis.

UScellular’s agents are generally in the business of selling wireless devices, wireless service plans and other related products to consumer and business and government customers.

UScellular provides support and training to its agents to increase customer satisfaction and to ensure a consistent customer experience.

UScellular also maintains a relationship with a large national retailer, selling postpaid and prepaid devices and similar to the agents, this national retailer obtains and services UScellular postpaid and prepaid customers on a commission basis.

The wireless telecommunication industry is highly competitive.

UScellular competes directly with several wireless service providers in each of its markets.

In general, there are at least four competitors across UScellular's service area, including to a varying degree:

the national wireless companies - Verizon Communications Inc., AT&T Inc., T-Mobile US, Inc., and Dish Network Corporation, cable wireless, which predominantly includes Comcast Corporation and Charter Communications, Inc., and mobile virtual network operators (MVNOs).

In addition, UScellular competes with other companies that use alternative communication technology and services to provide similar services and products.

Since each of these competitors has access to comparable technology and facilities, competition among wireless service providers for customers is principally on the basis of types of services and products offered, price, brand, network quality, network speed and responsiveness of customer service.

Types of services and products include non–wireless related services such as content offerings that are bundled with wireless services.

Network Technology.

Wireless telecommunication systems transmit voice and data signals over networks of radio towers using radio spectrum licensed by the FCC.

Access to local, regional, national and worldwide telecommunications networks is provided through system interconnections.

A high-quality network, supported by continued investments in that network, is an important factor for UScellular to remain competitive.

5G technology helps address customers’ growing demand for data services and enhanced services, including high-speed fixed wireless home internet services, requiring high speed and reliability as well as low latency.

UScellular supports mobility and fixed wireless services through a combination of low-band, mid-band and high-band spectrum.

In 2019-2023, UScellular focused on 5G coverage and predominantly used low-band spectrum to launch 5G services in portions of substantially all of its markets.

During 2023 and 2024, UScellular has focused on deploying 5G over its mid-band spectrum, largely overlapping areas already covered with low-band 5G service to enhance speed and capacity for UScellular's mobility and fixed wireless services.

As of December 31, 2024, mid-band spectrum is deployed on sites that covered nearly 50% of data and voice traffic.

UScellular also operates a 4G LTE network including VoLTE technology, which allows customers to utilize a 4G LTE enabled mobile device for voice and data services, including high-definition voice and simultaneous voice and data sessions.

UScellular decommissioned its third-generation (3G) CDMA network in the first quarter of 2024.

Inter-carrier roaming agreements are negotiated between wireless operators to enable customers to use wireless services outside of their home service area.

UScellular has entered into roaming agreements with a number of wireless companies so that it can offer its customers nationwide services, including 4G LTE, VoLTE and 5G, as well as a variety of international roaming options.

UScellular owns and leases cell towers to provide service to its customers throughout its footprint.

UScellular receives tower rental revenues when another carrier leas es tower space on a UScellular owned tower.

As of December 31, 2024, there were 7,010 cell sites in service of which UScellular owned 4,409 .

UScellular’s operations are subject to federal, state and local regulation.

Key regulatory considerations are discussed below.

The construction, operation and transfer of wireless systems in the United States are regulated to varying degrees by the FCC pursuant to the Communications Act of 1934, as amended (Communications Act).

The FCC currently does not require wireless carriers to comply with a number of statutory provisions otherwise applicable to common carriers that provide, originate or terminate interstate or international telecommunications.

However, the FCC has enacted regulations governing construction and operation of wireless systems, licensing (including renewal of wireless spectrum licenses) and technical standards for the provision of wireless services under the Communications Act.

Wireless spectrum licenses segmented by geographic areas are granted by the FCC.

The completion of acquisitions, involving the transfer of control of all or a portion of a wireless system, requires prior FCC approval.

The FCC determines on a case-by-case basis whether an acquisition of wireless spectrum licenses is in the public interest.

Wireless spectrum licenses are granted generally for a ten-year term or, in some cases, for a twelve-year or fifteen-year term.

The FCC establishes the standards for conducting comparative renewal proceedings between a wireless license holder seeking renewal of its license and challengers filing competing applications.

All of UScellular’s wireless spectrum licenses for which it applied for renewal since 1995 have been renewed.

UScellular expects to continue to meet the criteria of the FCC’s license renewal process.

As part of its data services, UScellular provides internet access.

Such internet access services may be subject to different regulatory requirements than other wireless services.

Although the Communications Act generally pre-empts state and local governments from regulating the entry of, or the rates charged by wireless carriers, certain state and local governments regulate other terms and conditions of wireless services, including billing, termination of service arrangements, imposition of early termination fees, advertising, network outages, the use of handsets while driving, zoning, land use, privacy, data security and consumer protection.

Further, the Federal Aviation Administration also regulates the siting, lighting and construction of transmitter towers and antennae.

Reference is made to Item 7 of this Form 10-K under “Regulatory Matters” for information regarding any other significant recent developments and proposals relating to regulatory matters.

On August 1, 2025, United States Cellular Corporation changed its name to Array Digital Infrastructure, Inc.

Array is used throughout this report even when referring to historical periods.

On August 12, 2025, the Array Common Shares ticker symbol on the New York Stock Exchange changed to "AD".

Array connects America through digital infrastructure by leasing tower space to tenants and providing ancillary services.

As of December 31, 2025 , Array owns 4,450 towers in 19 states.

Array also holds noncontrolling interests in primarily wireless operating companies and holds certain wireless spectrum licenses.

As of December 31, 2025, Array is an 82.0%-owned subsidiary of Telephone and Data Systems, Inc.

Through July 31, 2025, Array provided wireless communication services;

these operations and certain wireless spectrum licenses were disposed of on August 1, 2025, as discussed further below.

Operating Strategy and Recent Developments

Array is the fifth largest tower owner and operator of shared wireless communications infrastructure in the United States.

With 4,450 cell towers, Array enables the deployment of 5G and other wireless technologies throughout the country.

Array has a unique wireless carrier heritage and has owned and operated towers for over 40 years.

This experience gives Array a robust understanding of the needs of its wireless customers and enables the delivery of exceptional service.

Array has built a strong and focused organization that has been and will be relied upon as an efficient and cost-effective partner for colocation.

Array’s strategy is to drive increased colocation on its portfolio of unique tower locations and support the delivery of connectivity to the communities in which it operates.

Array’s operations are characterized by:

• Array’s tenants lease space on Array's communications infrastructure, installing network equipment on Array tower structures.

Revenues vary by tenant and are dependent on numerous factors, such as quantity of installed equipment, location of installed equipment on the tower structure and tower location, amongst others.

Array has entered into long-term Master License Agreements (MLAs) with its largest customers, which ensures a defined lease term and defined lease escalators.

Array generally experiences very limited tenant churn and high lease renewal rates driven by the high cost tenants incur to move sites as well as the potential lack of availability of suitable alternative tower structures.

Array's largest tenants include T-Mobile, AT&T and Verizon.

• Array's towers are generally located on leased land, though approximately 18% of the portfolio is located on deeded land or land where there is a perpetual easement.

Additionally, over 65% of towers on leased land have a lease expiration date ten years or more in the future.

Array's towers generally sit within a fenced compound that contains the tower itself as well as space for tenant equipment including shelters and generators.

The average height of an Array tower is 260 feet, with tower heights ranging from 60 to 600 feet.

Array's portfolio consists of monopole, self-support (lattice), and guyed towers.

In addition to the tower structure, guyed towers have guy-wires that extend down to guy anchors.

Substantially all of Array's towers have adequate tower capacity and ground space to accommodate additional tenants.

• Demand for tower infrastructure continues to be high, driven primarily by continued growth in mobile data consumption.

Array is in a unique position of having a lower tenancy rate than other tower operators due to the tower portfolio being part of the broader legacy wireless business prior to August 2025.

This provides Array with ample remaining leasable vertical real estate in attractive rural, suburban and urban areas in the communities in which Array operates.

• Array's direct tower operations costs consist of ground rent, tower maintenance, utilities, property tax and property insurance.

Ground rent is the largest of these operating costs and is generally governed by long-term ground lease agreements with periodic escalators.

• Array’s Selling, general and administrative expenses include employee related expenses, bad debts expense, consulting fees, and other general and administrative expenses.

In 2025, Selling, general and administrative expenses also included significant costs associated with the wind down of the wireless operations that were not included in discontinued operations.

These expenses are expected to persist at a declining rate into future periods.

Array’s strategy is focused on:

• T-Mobile MLA integration:

Continued partnership with T-Mobile to implement the provisions of the long-term MLA.

This includes the execution of the 2,015 committed site lease agreements (SLAs), caring for interim site terminations, and partnering to drive incremental tenancies above the MLA commitment.

• Growing colocation revenue:

Array is focused on increasing the cash flow generated from its tower portfolio and is positioned to drive growth over the coming years.

First, over one-third of Array's portfolio of towers has no competing structure within a two-mile radius.

Second, Array's tenancy rate is lower than other tower companies, providing sufficient capacity for additional tenants and greater opportunity for lease up.

Third, Array has a dedicated sales team supporting its carrier customers and has recently added dedicated team members to support its non-carrier customers and continue to grow those relationships.

From an industry perspective, Array believes that continued growth in demand for wireless services, spectrum build-outs, efforts to bridge the digital divide and the emergence of next-generation technologies will drive the need for additional communications infrastructure.

• Ground lease optimization:

Array seeks to increase its ground ownership position through continued ground lease purchases as well as proactively renewing ground leases well before lease expiration.

• Evaluation of towers without tenants portfolio:

At the conclusion of the T-Mobile integration, Array expects to have 800 – 1,800 towers without tenants.

Ongoing analysis will inform Array's strategy for these towers, including assessing the leasability of each tower, ground rent rationalization and long-term alternatives.

Array believes that on balance there is significant value in its towers without tenants portfolio that it will strive to unlock through a combination of activities, including increased leasing, ground rent rationalization, and if necessary, divesting, including potential decommissioning, for these locations.

On August 1, 2025, Array sold its wireless operations and select spectrum assets to T-Mobile US, Inc.

(T-Mobile) under a Securities Purchase Agreement (Securities Purchase Agreement).

Total consideration received was $4,293.8 million after adjustments which included a combination of $2,628.8 million in cash proceeds and $1,665.0 million in debt assumed by T-Mobile through the preliminary results of an exchange offer made to Array's debtholders, which subsequently closed on August 5, 2025.

The final cash proceeds are subject to adjustment according to the terms and conditions of the Securities Purchase Agreement.

At closing, a $16.7 million deferral of the purchase price was recorded related to certain spectrum licenses included in the transaction that did not transfer to T-Mobile and are subject to FCC approval.

In addition, at closing, Array and T-Mobile entered into a Short-Term Spectrum Manager Lease Agreement and Short-Term Spectrum Manager Sublease Agreements which provide T-Mobile with an exclusive license to use certain Array spectrum assets and leases at no cost for up to one-year for the sole purpose of providing continued, uninterrupted service to customers.

Further, at closing, Array and T-Mobile entered into a Master License Agreement (MLA), pursuant to which, among other things, T-Mobile has agreed to license from Array space on towers owned by Array.

The wireless operations and select spectrum assets sold to T-Mobile are presented as discontinued operations throughout this report.

See Note 2 — Discontinued Operations in Notes to Consolidated Financial Statements for additional information.

In addition to the sale of Array's wireless operations and select spectrum assets sold to T-Mobile pursuant to the Securities Purchase Agreement, Array also separately entered into the following agreements to sell spectrum license assets.

Spectrum Licenses Buyer Purchase Price Book Value as of December 31, 2025 Signing Date Estimated or Actual Close Date

(Dollars in thousands)

AWS, Cellular and PCS 1

Verizon $ 1,000,000 $ 585,579 October 17, 2024 Q2/Q3 2026

3.45 GHz and 700 MHz AT&T $ 1,018,044 $ 860,145 November 6, 2024 January 13, 2026

T-Mobile $ 85,000 $ 64,267 August 29, 2025 2026

T-Mobile $ 86,387 $ 86,454 October 7, 2025 2026

1 These license transactions remain subject to regulatory approval and other customary closing conditions, and in the case of the sale to Verizon, the termination of the T-Mobile Short-Term Spectrum Manager Lease Agreement.

See Note 6 — Acquisitions and Divestitures in the Notes to Consolidated Financial Statements for additional information.

The strategic alternatives review process is ongoing as Array works toward closing the Verizon and T-Mobile spectrum transactions signed during 2024 and 2025, and seeks to opportunistically monetize its remaining spectrum assets that are not subject to executed agreements.

As part of its business development strategy, Array may periodically be engaged in negotiations relating to strategic partnerships and/or the acquisition or disposition of assets and/or investment interests.

Array primarily faces competition from other companies that own tower assets in the areas in which Array operates.

This includes, but is not limited to, large tower operators (American Tower Corporation, Crown Castle Inc and SBA Communications Corporation), regional tower operators, build-to-suit tower providers, owners of non-tower infrastructure that can be leveraged to house communications equipment (e.g., rooftops) and wireless providers that opt to own and operate their own infrastructure.

The primary competitive factors in the industry include tower location, speed of deployment and lease agreement structure (pricing and entitlements), as well as expertise in the end-to-end leasing process.

Array's operations are subject to federal, state and local regulation, including Federal Communications Commission (FCC) and Federal Aviation Administration (FAA) regulation.

The FCC and FAA regulate towers for wireless communications, radio, or television broadcasting.

These regulations dictate the registration, lighting, marking and maintenance of Array's towers as well as siting and construction of any new towers and are dependent on such factors as the height of the tower and the proximity to an airfield.

New tower construction and some modifications to existing structures are also subject to the National Environmental Policy Act (“NEPA”), National Historic Preservation Act (NHPA) and/or other federal, state and local regulations.

Array is subject to state and local regulations around land use, subdivision and zoning restrictions and restrictive covenants imposed by local authorities and developers.

These regulations vary but can require approval from local authorities, community organizations or environmental organizations before tower construction or modifications to an existing tower.

At times these bodies can block tower construction or modification, impeding Array’s ability to meet customer demand.

As an owner and operator of real estate, Array is subject to federal, state and local environmental and hazardous materials regulation.

Human Capital Resources

Company and Culture

UScellular had approxima tely 4,100 full-time and part-time associates as of December 31, 2024.

The culture at UScellular is based upon the fundamental belief that UScellular’s success is inextricably tied to associate engagement and high ethical standards.

UScellular's Code of Conduct sets forth expectations for ethical behavior across the enterprise and provides the guiding principles by which all associates must abide in all business activities.

UScellular provides a competitive wage and benefits package, a safe workplace, and an environment where associates feel engaged and a sense of belonging.

UScellular periodically surveys its associates to understand the level of associate engagement and overall job satisfaction.

UScellular sponsors Associate Resource Groups, open to all associates, to promote dynamic community experiences that align with UScellular's vision and values, increase associate engagement and empowerment, and support professional development.

UScellular endeavors to encourage a broad range of thoughts, ideas and the innovation needed to move the business forward.

Since its founding, UScellular has been committed to associate development, including for emerging and existing leaders, which is critical to its success.

UScellular provides job specific, safety, and fraud awareness training for all associates – and also offers programs that further develop its associates including educational assistance, developmental assignments, and mentoring programs.

UScellular is committed to supporting and enhancing the communities it serves through local and philanthropic initiatives that enrich the lives of those living where it operates and where its associates live, work and play.

This includes a focus on addressing gaps in STEM education by connecting tomorrow’s innovators with the resources they need today to help shape their future opportunities.

UScellular is addressing the digital divide and providing critical resources in local communities, and encourages associates to volunteer and support local organizations and community groups.

Local communities are at the center of UScellular’s businesses, and UScellular takes great pride in giving back to the people and places that contribute to its sustainability and success.

Array had approximately 60 full-time and part-time associates as of December 31, 2025.

The culture at Array is based upon the fundamental belief that Array’s success is inextricably tied to associate engagement and high ethical standards.

Array's Code of Conduct sets forth expectations for ethical behavior across the enterprise and provides the guiding principles by which all associates must abide in all business activities.

Array provides a competitive wage and benefits package, a safe workplace, and an environment where associates feel engaged and a sense of belonging.

Array periodically surveys its associates to understand the level of associate engagement and overall job satisfaction.

Array sponsors Associate Resource Groups, open to all associates, to promote dynamic community experiences that align with Array's vision and values, increase associate engagement and empowerment, and support professional development.

Array endeavors to encourage a broad range of thoughts, ideas and the innovation needed to move the business forward.

Development and Leader Effectiveness

Array is committed to advancing associate development and leadership effectiveness, recognizing these are essential to long-term success.

All associates receive job-specific, safety, security, and fraud awareness training, supported by programs that promote continuous growth, including educational assistance, developmental assignments, and mentoring opportunities.

Array's leadership framework takes a human-centric approach, equipping leaders with practical tools and resources to strengthen coaching, mentoring and people development capabilities.

Array also conducts annual talent reviews and succession planning to assess leadership performance and readiness for larger, more complex roles.

Succession planning for the CEO and executive leadership team is reviewed with the Board of Directors at least annually.

Array is committed to supporting and enhancing the communities it serves through local and philanthropic initiatives that enrich the lives of those living where it operates and where its associates live, work and play.

Array encourages associates to volunteer and support local organizations and community groups.

What changed 10-K

Item 1. Business