T-Mobile US, Inc.

“As of December 31, 2025, we provide wireless communications and broadband services to 142.4 million postpaid and prepaid customers and generate revenue by providing affordable wireless communications and broadband services to these customers, as well as a wide selection of wireless devices and accessories.”

“We also provide Machine-to-Machine ("M2M") and Mobile Virtual Network Operator ("MVNO") customers access to our network. This access and the customer relationship are managed by wholesale partners, with whom we have commercial agreements permitting them to sell services utilizing our network.”

“We provide services, devices and accessories across our flagship brands, T-Mobile, Metro by T-Mobile and Mint Mobile, through our T-Mobile and Metro by T-Mobile owned and operated retail stores, as well as through our websites (www.t-mobile.com, www.metrobyt-mobile.com and www.mintmobile.com), T-Mobile, Metro by T-Mobile and Mint Mobile apps, customer care channels and through national retailers.”

“we offer complementary broadband services including 5G broadband, which is a fixed wireless product available to tens of millions of domestic households utilizing the excess capacity of our nationwide 5G network, and fiber, expanding broadband access and choices for some consumers.”

“Our most popular current service plan offerings are our premium Experience plans, including Experience More and Experience Beyond, which include unlimited talk, text and data on our network, 5G access at no extra cost, scam protection features, popular streaming subscriptions, in-flight Wi-Fi, access to the same device offers as new customers and more.”

“We also provide products and services that are complementary to our wireless communications and broadband services, including device protection, financial services and advertising.”

“Substantially all of our revenues for the years ended December 31, 2025, 2024 and 2023, were earned in the United States, including Puerto Rico and the U.S. Virgin Islands.”

“•81% Postpaid customers; •15% Prepaid customers; and •4% Wholesale and other services.”

“We also offer for sale to customers a wide selection of wireless devices, including smartphones, wearables, tablets, 5G broadband gateways and other mobile communication devices that are manufactured by various suppliers.”

“the acquisition of substantially all of UScellular's wireless operations and select AWS, PCS, 600 MHz, 700 MHz and other spectrum assets for an aggregate purchase price of approximately $4.4 billion, payable in cash and the assumption of up to $2.0 billion of debt through exchange offers to certain UScellular debtholders.”

“On September 12, 2023, we entered into a License Purchase Agreement to acquire spectrum in the 600 MHz band from Comcast in exchange for total cash consideration of between $1.2 billion and $3.3 billion... Subsequent to the amendment, the total cash consideration for the transaction is between $1.2 billion and $3.4 billion.”

“On the Ka'ena Acquisition Date and in satisfaction of the upfront payment, we transferred $420 million in cash and 3,264,952 shares of T-Mobile common stock valued at $536 million as determined based on its closing market price on April 30, 2024, for a total payment fair value of $956 million.”

“On April 1, 2025, we completed the joint acquisition of Lumos and pursuant to the definitive agreement, we expect to make an additional capital contribution of approximately $500 million between 2027 and 2028 under the existing business plan”

“We expect to maintain our investment in capital expenditures related to these efforts in 2026 compared to 2025, as we continue our integration efforts, maintain our commitment to build out our nationwide 5G network and continue our digital transformation. Future capital expenditure requirements will be primarily driven by the deployment of acquired spectrum licenses.”

“We expect to continue to see intense competition in all market segments from traditional Mobile Network Operators ("MNOs"), such as AT&T and Verizon, who have each invested heavily in spectrum, their wireless networks, and services and device promotions.”

“With what we believe is America's best network, with the largest, fastest, most awarded and most advanced 5G network, the Un-carrier strives to offer customers unrivaled coverage and capacity where they live, work and travel.”

“leadership in deploying the latest network technologies including Massive Multiple-input Multiple-output ("Massive MIMO"), Voice over New Radio ("VoNR"), Low Latency, Low Loss, Scalable Throughput ("L4S"), four-carrier and higher order aggregation, dynamic network slicing and the U.S.'s first broad deployment of 5G Advanced, are enabled by our scaled nationwide 5G standalone network.”

“As part of our relentless, customer-first focus, we are transforming into an AI-enabled, data-informed, digital-first organization to continue delivering differentiated experiences to our customers.”

“To complement our fixed wireless service, we have entered into joint venture agreements aimed at establishing a robust fiber wireline network in certain geographic regions that we believe will complement our fixed wireless services in those areas.”

“As of December 31, 2025, we have entered into $11.1 billion of financing leases under these financing lease facilities, of which $1.2 billion was executed during the year ended December 31, 2025.”

“adverse economic, political or market conditions in the U.S. and international markets, including changes resulting from increases in inflation or interest rates, tariffs and trade restrictions, supply chain disruptions, fluctuations in global currencies, immigration policies, and impacts of geopolitical instability, such as the Ukraine-Russia, Iran-Israel and Israel-Hamas wars and further escalations thereof”

“From January 1, 2026, through the end of 2027, the Company expects its business plan to support: •Up to approximately $30.0 billion for share repurchases and cash dividends, which includes the 2026 Stockholder Return Program; and •Over $22.0 billion in a discretionary and flexible envelope for opportunistic deployment”

“No events or changes in circumstances have occurred that indicate the fair value of our reporting units may be below their carrying amount at December 31, 2025.”

“Total contractual obligations$20,476 $39,886 $31,652 $104,392 $196,406”

“During the year ended December 31, 2025, we paid an aggregate of $4.1 billion in cash dividends to our stockholders under the 2025 Stockholder Return Program... we repurchased 42,363,226 shares of our common stock at an average price per share of $232.96 for a total purchase price of $9.9 billion, under the 2025 Stockholder Return Program.”

“we operate under agreements with U.S. government agencies, including a mitigation agreement with the Committee on Foreign Investment in the United States, under which we are required to implement and maintain certain security measures and practices to address national security.”

“The FCC regulates the licensing, construction, modification, operation, ownership, sale, and interconnection of wireless communications systems, as do some state and local regulatory agencies.”

“Since 2020, more than a dozen states have enacted new, comprehensive privacy laws that create new data privacy rights for residents of those states and new compliance obligations for us and the industry in general”

“As a result of the previously disclosed cyberattacks in August 2021 and January 2023, we incurred significant costs in connection with, among other things, responding to and resolving mass arbitration claims, multiple class action lawsuits, and an FCC investigation.”

“interests of Deutsche Telekom AG ("DT"), our controlling stockholder, which may differ from the interests of other stockholders”

“Failure to maintain effective internal control over financial reporting could impair our compliance with Section 404 of the Sarbanes-Oxley Act, which could lead to material misstatements in our financial statements and adversely affect our operations and reputation.”

“operational delays, higher procurement and operational costs, and increased regulatory and compliance complexities, for example, as a result of changes to trade policies, including higher tariffs, restrictions and other economic disincentives to trade”

“our wireless licenses, including those controlled through leasing agreements, are subject to renewal and may be revoked”

“As the industry reaches saturation, competition in all market segments, including prepaid, postpaid, enterprise and government customers will likely further intensify, putting pressure on pricing and/or margins for us and all our competitors.”

“our offering of regulated financial services products and exposure to a wide variety of state and federal regulations”