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TELEPHONE DATA SYSTEMS INC DE

For the period ended Dec 31, 2024. Filed Feb 21, 2025.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Feb 21, 2025

TDS$32.87+1.6%Stored close · as of Nov 6, 2026

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2024

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 001-14157

TELEPHONE AND DATA SYSTEMS, INC.

(Exact name of Registrant as specified in its charter)

Delaware36-2669023
(State or other jurisdiction of incorporation or organization)(IRS Employer Identification No.)

30 North LaSalle Street, Suite 4000, Chicago, Illinois 60602

(Address of principal executive offices) (Zip code)

Registrant’s telephone number, including area code:(312) 630-1900

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading SymbolName of each exchange on which registered
Common Shares, $.01 par valueTDSNew York Stock Exchange
Depository Shares each representing a 1/1000th interest in a share of 6.625% Series UU Cumulative Redeemable Perpetual Preferred Stock $.01 par valueTDSPrUNew York Stock Exchange
Depository Shares each representing a 1/1000th interest in a share of 6.000% Series VV Cumulative Redeemable Perpetual Preferred Stock $.01 par valueTDSPrVNew 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 Section 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 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☒Accelerated filer☐
Non-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 Exchange Act).Yes☐No☒

As of June 28, 2024, the aggregate market values of the registrant’s Common Shares and Series A Common Shares held by non-affiliates were approximately $2 billion and less than $1 million, respectively. For purposes hereof, Telephone and Data Systems, Inc. (TDS) has assumed that each director and executive officer is an affiliate, and no party who has filed a Schedule 13G is an affiliate. The June 28, 2024 closing price of the Common Shares was $20.73 as reported by the New York Stock Exchange. Because trading in the Series A Common Shares is infrequent, the registrant has assumed for purposes hereof that each Series A Common Share has a market value equal to one Common Share because the Series A Common Shares are convertible on a share-for-share basis into Common Shares.

The number of shares outstanding of each of the registrant’s classes of common stock, as of January 31, 2025, is 107 million Common Shares, $.01 par value, and 7 million Series A Common Shares, $.01 par value.

DOCUMENTS INCORPORATED BY REFERENCE

Those sections or portions of the registrant’s Notice of Annual Meeting of Shareholders and Proxy Statement (Proxy Statement) to be filed prior to April 30, 2025, for the 2025 Annual Meeting of Shareholders scheduled to be held May 22, 2025, are herein incorporated by reference into Parts II and III of this report.

TABLE OF CONTENTS

Part I · Page No.
Item 1.Business1
Item 1A.Risk Factors9
Item 1B.Unresolved Staff Comments23
Item 1C.Cybersecurity23
Item 2.Properties24
Item 3.Legal Proceedings24
Item 4.Mine Safety Disclosures24
Part II
Item 5.Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities25
Item 6.[Reserved]26
Item 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations27
Item 7A.Quantitative and Qualitative Disclosures About Market Risk68
Item 8.Financial Statements and Supplementary Data69
Item 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure118
Item 9A.Controls and Procedures119
Item 9B.Other Information119
Item 9C.Disclosure Regarding Foreign Jurisdictions that Prevent Inspections119
Part III
Item 10.Directors, Executive Officers and Corporate Governance120
Item 11.Executive Compensation120
Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters120
Item 13.Certain Relationships and Related Transactions, and Director Independence120
Item 14.Principal Accountant Fees and Services120
Part IV
Item 15.Exhibits and Financial Statement Schedules121
Signatures
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