ARRAY DIGITAL INFRASTRUCTURE, INC.

Current report

On May 7, 2026, TDS delivered to the Array Board of Directors a non-binding proposal to acquire all of the outstanding Array Common Shares that are not owned by TDS. There can be no guarantee whether any transaction will be accepted, rejected, consummated or abandoned. Further, the proposal (whether accepted, rejected, consummated or abandoned) could result in adverse effects on Array’s business, financial condition or results of operations.

Current report

On May 7, 2026, TDS delivered to the Array Board of Directors a letter setting forth a non-binding proposal to acquire all of the outstanding Array Common Shares that are not owned by TDS. For additional information, see TDS’ Current Report on Form 8-K, filed with the U.S. Securities and Exchange Commission on May 8, 2026. There is no guarantee that any definitive agreement will be entered into or that any transaction will be accepted, rejected, consummated or abandoned, and the terms of any such transaction may differ materially from those originally proposed by TDS. The uncertainty regarding the proposal (whether accepted, rejected, consummated or abandoned) could result in: a diversion of management's attention from Array’s existing business; a failure to achieve financial and operating objectives; adverse effects on Array's financial condition or results of operations; a failure to retain key personnel, customers, business partners or contracts; and volatility in Array's stock price. In addition, the proposal (whether accepted, rejected, consummated or abandoned) may result in the incurrence of significant expenses.

Previous report

1)Closing of the T-Mobile transaction occurred on August 1, 2025, and will require substantial changes to the manner in which Array’s remaining business is conducted, which could have a material adverse effect on Array's financial condition and results of operations.

Previous report

The successful closing of the T-Mobile transaction on August 1, 2025 will require significant changes to the manner in which the Array business is operated. The remaining Array business, which includes the tower business, non-controlling interests in certain wireless operating companies and wireless spectrum licenses, certain of which are subject to other sale agreements, is of a significantly smaller scale than its historical operations. This could produce operational, cost and borrowing disadvantages relative to its historical operations.

Previous report

Upon receipt of regulatory approval, Array accelerated the recognition of certain cash and non-cash obligations related to employee compensation, severance and stock awards. Additional significant costs that include contingent advisory fees, income tax expense, administrative costs, restructuring expenses and other wind down costs were recorded upon and following the close on August 1, 2025. Significant additional transaction costs related to pending and potential future spectrum sales, ongoing restructuring expenses and wind down costs are expected to be incurred into the foreseeable future as the strategic alternatives process is completed. Additionally, it is uncertain which towers T-Mobile will choose to permanently locate on, and therefore, it is unknown how many and which towers with no tenants will remain in Array's tower portfolio. Array may incur significant decommissioning costs for certain towers that Array elects to retire, and such decommissioning costs are also expected to include remaining obligations under related ground leases for certain towers. These decommissioning costs may have a significant adverse impact on Array's future cash flows and financial results.

Previous report

At the closing of the T-Mobile transaction, Array and T-Mobile entered into a MLA, pursuant to which, among other things, T-Mobile will lease space on certain additional Array-owned towers for a minimum of 15 years and also commit to 15 year minimum extensions of existing leases for Array-owned towers. As a result, Array’s business is substantially dependent upon T-Mobile, and if T-Mobile fails to meet its obligations under these leases to Array, this would have a significant adverse impact on Array's business and financial results.

Previous report

See Note 2 — Discontinued Operations and Note 6 — Acquisitions and Divestitures in the Notes to Consolidated Financial Statements for additional information.

Previous report

2)Array entered into License Purchase Agreements with Verizon, AT&T and T-Mobile to sell certain wireless spectrum licenses. There is no guarantee that such transactions contemplated by the License Purchase Agreements will be consummated and, in particular, the impact of the ongoing government shutdown on timing of closing of these transactions is unknown. Costs and uncertainties related to these transactions could have adverse effects on Array's financial condition or results of operations.

Previous report

On October 17, 2024, Array entered into the Verizon License Purchase Agreement 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.

Previous report

On November 6, 2024, Array entered into the AT&T License Purchase Agreement 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.

Previous report

On August 29, 2025, Array entered into the T-Mobile License Purchase Agreement to sell certain 700 MHz wireless spectrum licenses and agreed to grant T-Mobile certain rights to lease such licenses prior to the transaction close.

Previous report

On October 7, 2025, Array entered into the T-Mobile Put/Call License Purchase Agreement to sell certain 600 MHz wireless spectrum licenses.

Previous report

The Verizon, AT&T and T-Mobile spectrum transactions are subject to regulatory approval, which Array may not be able to obtain on the terms or timeline currently contemplated, or at all. In addition, the impact of the ongoing government shutdown on closing timing is uncertain. Similarly, Array may not be able to satisfy the other closing conditions applicable to each of the transactions, which in the case of the Verizon transaction, includes the termination of the T-Mobile Short-Term Spectrum Manager Lease Agreement. If the Verizon, AT&T and T-Mobile spectrum transactions are not consummated, the funds contemplated to be received as a result of such transactions will not be available for investment in Array’s business, repayment of debt, or dividends to Array stockholders, including TDS. Further, Array’s stock price likely would decline to the extent that the current market price reflects an assumption that these transactions will be completed. The uncertainty regarding the Verizon, AT&T and T-Mobile spectrum transactions and the continued efforts to monetize the remaining spectrum assets could result in adverse effects on Array's financial condition or results of operations and volatility in Array's stock price.

Previous report

The strategic alternatives review process has already resulted in the incurrence of significant expense primarily related to legal and financial advisors - this is expected to continue. Further, as a result of changes to its spectrum units of accounting, Array recognized significant impairments on its spectrum assets during 2024 and 2025 and further events and circumstances may result in additional impairments for the spectrum that is retained after the close of the sale of the wireless operations and select spectrum assets to T-Mobile, including the spectrum that is pending sale if such sales do not close as expected.

Previous report

There can be no assurance that the strategic alternatives review process, which is ongoing, will result in the spectrum transactions with Verizon, AT&T and T-Mobile being successfully completed, or the successful monetization of other remaining spectrum, or that these processes or any outcomes of these processes will not have an adverse impact on Array's business or financial statements.

Previous report

See Note 6 — Acquisitions and Divestitures in the Notes to Consolidated Financial Statements for additional information related to the Verizon, AT&T and T-Mobile spectrum transactions.

Previous report

Operational Risk Factors

Previous report

3)An inability to monetize the remaining spectrum assets as well as the ongoing costs to retain the spectrum could adversely affect Array’s operations.

Previous report

Array may be unable to find buyers at mutually agreeable prices for its spectrum assets not subject to the pending Verizon, AT&T and T-Mobile transactions. Further, the opportunity to monetize the remaining spectrum assets will depend on a variety of factors, including industry data usage, availability of new spectrum through FCC spectrum auctions and the potential disposition of other wireless businesses.

Previous report

In addition, most of the remaining spectrum licenses not subject to the Verizon, AT&T and T-Mobile spectrum transactions have FCC build-out requirements that have not yet been fully satisfied. Compliance with such requirements would require significant investments and Array no longer has an existing wireless business to operate the retained spectrum. Additionally, if the Verizon, AT&T and T-Mobile spectrum transactions are not completed, Array would retain additional wireless spectrum licenses with no wireless business to operate the spectrum. As renewal of all wireless spectrum licenses is predicated upon their initial and continued operation in accordance with FCC requirements, such licenses could be subject to forfeiture if Array does not incur significant costs and expenses to operate the spectrum prior to renewal or engage another carrier to do so. All of these events could have a significant adverse effect on Array’s financial condition, cash flows, and results of operations.

Previous report

4)Increasing competition in the tower industry could adversely affect Array’s revenues, negatively impact future growth and increase its costs to compete.

Previous report

Competition in the tower industry is robust, as Array competes with public and private tower companies, private equity sponsored tower companies, and owners of non-communications sites such as utility towers, rooftop structures, water towers, and other alternative structures. Many of these competitors are larger than Array, have greater financial and other resources, have more advantageous tower locations than Array, have greater capacity on their towers, and have more scale nationwide than Array. Such factors could result in difficulty in leasing tower space or renewing leases, or cause lease revenue to decline in the future. Specifically, Array could be negatively impacted by the following factors, among others:

Previous report

•Increased pressure on pricing resulting from increased tenant churn or reduced tenancy rates;

Previous report

•Low profit margins and returns on investment that are below Array’s cost of capital;

Previous report

•Limited opportunities for strategic partnerships.

Previous report

5)There are economic and business risks associated with fixed rate annual escalators on colocation revenue contracts.

Previous report

A majority of Array's ground leases with its ground lessors, and a majority of Array's colocation contracts with its tenants contain fixed rate annual escalation rates. To the extent average ground lease escalation rates exceed average colocation revenue escalation rates, Array's results of operations, cash flows, and financial condition could be adversely impacted.

Previous report

Further, to the extent future U.S. inflation rates would persist at higher rates for sustained periods of time, revenues and margins in real dollars could erode, and this could have an adverse affect on Array's results of operations, cash flows and financial condition.

Previous report

6)A substantial portion of Array revenues are derived from a small number of tenants concentrated in the wireless industry and the loss or financial difficulties of such tenants may adversely affect Array’s business, financial condition, results of operations and future growth. Array will be particularly reliant on its relationship with T-Mobile. Lower demand for wireless services, negative trends in the wireless industry or changes in customer business models may decrease the revenues Array receives from its tenants, which could adversely affect Array’s business, financial condition, results of operations and future growth.

Previous report

A substantial portion of Array revenues are derived from a small number of tenants concentrated in the wireless industry including Verizon, AT&T, Echostar Communications (a/k/a DISH Wireless), and particularly T-Mobile (collectively, large carriers). Array received a letter from DISH Wireless dated in September 2025 claiming that its obligations under its Master Lease Agreement with Array are excused due to actions taken by the FCC and subsequent agreements to sell spectrum assets. Array expects Site rental revenues from DISH Wireless to approximate $7 million for the full year 2025. Further, DISH Wireless is committed to levels of revenue commensurate with 2025, subject to escalators, through 2031, and a declining revenue commitment in 2032-2035. While Array believes that DISH Wireless' claim that its obligation under its Agreement with Array are excused is without merit, Array cannot predict with certainty whether and the degree to which its current or future year revenues will be negatively impacted as a result of this claim. As it relates to the large carriers, a reduction in the demand for tower leasing, reduced capital expenditures or operating expenses on networks, financial difficulties, or other business factors at such large carriers, may adversely affect Array’s revenues, results of operations, cash flows, financial condition, liquidity and future growth. If the large carriers or other current or potential tenants are unable to raise adequate capital to fund their business plans or encounter capital constraints, they may reduce spending, file for bankruptcy, or consolidate, reduce or terminate operations, which could adversely affect the demand for leasing space on towers and negatively impact both Array’s current revenue and cash flows, as well as future growth opportunities. Array’s revenues may be adversely affected by negative trends in the wireless industry, changes in the business model of its tenants or reduced demand for its large carriers’ services among their end users. Specifically, Array’s business, financial condition, revenues, liquidity, results of operations and future growth may be adversely affected by the following factors, among others:

Previous report

•The overall size and growth rate of Array’s tenant base;

Previous report

•Demand for or usage of wireless services, particularly data services;

Previous report

•Delays or failures of FCC spectrum auctions and wireless carriers ability to deploy new spectrum;

Previous report

•Emergence of new technologies that reduce the need for towers;

Previous report

•Lack of use cases to monetize new 6G technologies that require deploying equipment on towers;

Previous report

•Consolidation, co-location and/or spectrum sharing by wireless carriers that reduces the need for towers;

Previous report

•Wireless carriers may change the mix of their network investments away from tower related investments;

Previous report

•Economic downturn that results in wireless carriers reducing network capital expenditures; and

Previous report

•Large carriers exercise of pricing power to reduce tower rents.

Previous report

7)Inability to protect Array’s real estate rights, with respect to land leases, could have an adverse effect on Array’s business, financial condition or results of operations.

Previous report

A significant number of Array’s towers are located on land subject to operating leases. For various reasons, landowners may not want to renew their ground agreements with Array, may lose rights to their land, or may transfer their land interests to other parties, including ground lease aggregators, which could adversely affect Array’s ability to renew ground agreements, or to renew such ground agreements on commercially viable terms or require Array to renew on terms that are significantly less favorable than those that have historically been in place. Array’s inability to protect rights to the land under its towers, or its inability to lease such land on commercially viable terms or if Array needs to accept terms that are significantly less favorable than those that have historically been in place, may have a material adverse effect on Array’s business, cash flows, results of operations or financial condition.

Previous report

8)Array’s business, financial condition or results of operations may be adversely impacted by extreme weather events, climate-related events, natural disasters, including wildfires, and other unforeseen events.