ARRAY DIGITAL INFRASTRUCTURE, INC. — Regulatory Filings 2026

Jan 13, 2026

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): January 13, 2026

ARRAY DIGITAL INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware	001-09712	62-1147325
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

500 West Madison Street, Suite 810 , Chicago , Illinois 60661

(Address of principal executive offices and zip code)

Registrant's telephone number, including area code: (866) 573-4544

UNITED STATES CELLULAR CORPORATION

8410 West Bryn Mawr , Chicago , Illinois 60631

(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, $1 par value	AD	New York Stock Exchange
6.25% Senior Notes due 2069	UZD	New York Stock Exchange
5.50% Senior Notes due 2070	UZE	New York Stock Exchange
5.50% Senior Notes due 2070	UZF	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 2.01. Completion of Acquisition or Disposition of Assets

On January 13, 2026, Array Digital Infrastructure, Inc. (f/k/a United States Cellular Corporation) (“Array”) and certain subsidiaries of Array completed the previously announced sale of select spectrum assets to New Cingular Wireless PCS, LLC (“AT&T”), pursuant to the terms of that certain License Purchase Agreement (the “Purchase Agreement”), dated as of November 6, 2024, by and among Array, certain subsidiaries of Array named therein and AT&T (the “Closing”).

The purchase price received by Array at the Closing was $1.018 billio n, paid in cash. As previously disclosed, $232 million of the purchase price provided in the Purchase Agreement was allocated to certain spectrum licenses in the 700 MHz band (the “Designated Entity Spectrum Licenses”) held by entities in which Array now holds 100% of the equity interests. The closing of the sale of the Designated Entity Spectrum Licenses to AT&T occurred at the Closing and, accordingly, no portion of the purchase price was deferred.

Item 8.01. Other Events

Array Special Dividend

On January 13, 2 026, the Board of Directors of Array declared a special cash dividend to holders of Array’s Common Stock and holders of Array’s Series A Common Stock of $10.25 per share payable in cash to the stockholders of record as of January 23, 2026. The payment date in respect of the dividend is scheduled for February 2, 2026.

Press Release

On January 13, 2026, Array issued a press release announcing the Closing and related matters. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated into this Item 8.01 in this Current Report on Form 8-K by reference.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

Exhibit Number	Description of Exhibits
99.1	Press Release, dat ed January 13 , 2026.
104	Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

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.
		ARRAY DIGITAL INFRASTRUCTURE, INC.
Date:	January 13, 2026	By:	/s/ Vicki L. Villacrez
			Vicki L. Villacrez
			Executive Vice President, Chief Financial Officer and Treasurer