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Form 8-K

sec.gov

8-K — TELEPHONE & DATA SYSTEMS INC /DE/

Accession: 0001051512-26-000049

Filed: 2026-05-26

Period: 2026-05-21

CIK: 0001051512

SIC: 4813 (TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE))

Item: Submission of Matters to a Vote of Security Holders

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8-K

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 21, 2026

TELEPHONE AND DATA SYSTEMS, INC.

(Exact name of registrant as specified in its charter)

Delaware   001-14157   36-2669023

(State or other jurisdiction of incorporation)   (Commission File Number)   (I.R.S. Employer Identification No.)

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

(Address of principal executive offices and zip code)

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

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class Trading Symbol Name of each exchange on which registered

Common Shares, $.01 par value TDS New York Stock Exchange

Depositary Shares each representing a 1/1000th interest in a share of 6.625% Series UU Cumulative Redeemable Perpetual Preferred Stock, $.01 par value TDSPrU New York Stock Exchange

Depositary Shares each representing a 1/1000th interest in a share of 6.000% Series VV Cumulative Redeemable Perpetual Preferred Stock, $.01 par value TDSPrV New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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.

Item 5.07. Submission of Matters to a Vote of Security Holders

At the Annual Meeting of Shareholders of Telephone and Data Systems, Inc. (TDS) on May 21, 2026, the following number of votes were cast for the matters indicated. The following voting results are final.

1.Election of Directors.

The following directors received the following votes and were elected:

a. For the election of eight Directors of TDS by the holders of Series A Common Shares:

Nominee For Withhold Broker Non-vote

LeRoy T. Carlson, Jr. 74,832,251 — 20,040

Letitia G. Carlson, M.D. 74,832,251 — 20,040

Prudence E. Carlson 74,832,251 — 20,040

Walter C. D. Carlson 74,832,251 — 20,040

Kenneth S. Dixon 74,832,251 — 20,040

George W. Off 74,832,251 — 20,040

Napoleon B. Rutledge, Jr. 74,832,251 — 20,040

Vicki L. Villacrez 74,832,251 — 20,040

b. For the election of four Directors of TDS by the holders of Common Shares:

Nominee For Withhold Broker Non-vote

Kimberly D. Dixon 83,131,138 10,875,791 4,433,834

Christopher D. O'Leary 57,851,257 36,155,672 4,433,834

Wade Oosterman 83,646,319 10,360,610 4,433,834

Dirk S. Woessner 83,654,676 10,352,254 4,433,834

2.Proposal to ratify the selection of PricewaterhouseCoopers LLP as our Independent Registered Public Accountants for the year ending December 31, 2026.

The proposal received the following votes and was approved:

For Against Abstain Broker Non-vote

127,469,299 516,563 162,357 —

3.Proposal to approve amendments to TDS' Restated Certificate of Incorporation to allow for exculpation of officers.

The proposal received the following votes and was approved:

For Against Abstain Broker Non-vote

110,192,258 13,684,261 1,851,178 2,420,522

4.Proposal to approve, on an advisory basis, the compensation of our named executive officers as disclosed in TDS' Proxy Statement dated April 8, 2026 (commonly known as "Say-on-Pay").

The proposal received the following votes and was approved:

For Against Abstain Broker Non-vote

118,794,713 6,649,586 283,398 2,420,522

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

TELEPHONE AND DATA SYSTEMS, INC.

Date: May 26, 2026 By: /s/ Vicki L. Villacrez

Vicki L. Villacrez

Executive Vice President and Chief Financial Officer

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May 21, 2026

Document Type

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Document Period End Date

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TELEPHONE AND DATA SYSTEMS, INC.

Entity Central Index Key

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Entity Incorporation, State or Country Code

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Entity File Number

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Entity Tax Identification Number

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Entity Address, Address Line One

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Entity Address, City or Town

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NYSE

Depositary Shares each representing a 1/1000th interest in a share of 6.000% Series VV Cumulative Redeemable Perpetual Preferred Stock, $.01 par value

Title of 12(b) Security

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