# EDGAR Filing Document

**Accession Number:** 0000821130
**File Stem:** 0001739622-25-000004
**Filing Date:** 2025-8
**Character Count:** 8542
**Document Hash:** 4b416a708665c3b967fbdb11dcadda2c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001739622-25-000004.hdr.sgml**: 20250805

**ACCESSION NUMBER**: 0001739622-25-000004

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250801

**FILED AS OF DATE**: 20250805

**DATE AS OF CHANGE**: 20250805

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Chambers Douglas W
- **CENTRAL INDEX KEY:** 0001739622

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-09712
- **FILM NUMBER:** 251186663

**MAIL ADDRESS:**
- **STREET 1:** 30 N. LASALLE STREET, SUITE 4000
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60602
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ARRAY DIGITAL INFRASTRUCTURE, INC.
- **CENTRAL INDEX KEY:** 0000821130
- **STANDARD INDUSTRIAL CLASSIFICATION:** RADIO TELEPHONE COMMUNICATIONS [4812]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 621147325
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 500 WEST MADISON STREET
- **STREET 2:** SUITE 810
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60661
- **BUSINESS PHONE:** 8665734544

**MAIL ADDRESS:**
- **STREET 1:** 500 WEST MADISON STREET
- **STREET 2:** SUITE 810
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60661

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** UNITED STATES CELLULAR CORP
- **DATE OF NAME CHANGE:** 19920703

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Chambers Douglas W<br><sub>(Last) (First) (Middle)</sub><br>500 W. MADISON STREET, SUITE 810<br><sub>(Street)</sub><br>CHICAGO, IL 60661<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-08-01 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Interim President and CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>ARRAY DIGITAL INFRASTRUCTURE, INC. [ USM ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Shares | 2025-08-01 |  | M<sup>(1)</sup> |  | 11522 | A | <sup>(1)</sup> | 94517 | D |  |
| Common Shares | 2025-08-01 |  | F<sup>(2)</sup> |  | 5416 | D | $73.50 | 89101 | D |  |
| Common Shares | 2025-08-01 |  | M<sup>(3)</sup> |  | 41132 | A | <sup>(3)</sup> | 130233 | D |  |
| Common Shares | 2025-08-01 |  | F<sup>(2)</sup> |  | 19333 | D | $73.50 | 110900 | D |  |
| Common Shares | 2025-08-01 |  | M<sup>(4)</sup> |  | 67005 | A | <sup>(4)</sup> | 177905 | D |  |
| Common Shares | 2025-08-01 |  | D<sup>(4)</sup> |  | 67005 | D | $73.50 | 110900 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Units | <sup>(1)</sup> | 2025-08-01 |  | M<sup>(1)</sup> |  |  | 11522 | <sup>(1)</sup> | <sup>(1)</sup> | Common Shares | 11522 | <sup>(1)</sup> | 0<sup>(1)</sup> | D |  |
| Performance Share Units | <sup>(3)</sup> | 2025-08-01 |  | M<sup>(3)</sup> |  |  | 41132 | <sup>(3)</sup> | <sup>(3)</sup> | Common Shares | 41132 | <sup>(3)</sup> | 0<sup>(3)</sup> | D |  |
| Performance Share Units | <sup>(4)</sup> | 2025-08-01 |  | M<sup>(4)</sup> |  |  | 30225 | <sup>(4)</sup> | <sup>(4)</sup> | Common Shares | 30225 | <sup>(4)</sup> | 0<sup>(4)</sup> | D |  |
| Restricted Stock Units | <sup>(4)</sup> | 2025-08-01 |  | M<sup>(4)</sup> |  |  | 13812 | <sup>(4)</sup> | <sup>(4)</sup> | Common Shares | 13812 | <sup>(4)</sup> | 0<sup>(4)</sup> | D |  |
| Performance Share Units | <sup>(5)</sup> | 2025-08-01 |  | A<sup>(5)</sup> |  | 2871 |  | <sup>(5)</sup> | <sup>(5)</sup> | Common Shares | 2871 | <sup>(5)</sup> | 11484 | D |  |
| Performance Share Units | <sup>(4)</sup> | 2025-08-01 |  | M<sup>(4)</sup> |  |  | 11484 | <sup>(4)</sup> | <sup>(4)</sup> | Common Shares | 11484 | <sup>(4)</sup> | 0<sup>(4)</sup> | D |  |
| Restricted Stock Units | <sup>(4)</sup> | 2025-08-01 |  | M<sup>(4)</sup> |  |  | 11484 | <sup>(4)</sup> | <sup>(4)</sup> | Common Shares | 11484 | <sup>(4)</sup> | 0<sup>(4)</sup> | D |  |

---

### Footnotes:

(1) This transaction represents accelerated vesting and settlement of previously granted Restricted Stock Units in connection with the completion of Array's sale of its wireless operations and select spectrum assets.

(2) Shares withheld to pay taxes.

(3) This transaction represents accelerated vesting and settlement of previously granted Performance Share Units in connection with the completion of Array's sale of its wireless operations and select spectrum assets.

(4) This transaction represents accelerated vesting and cash settlement of Restricted Stock Units and Performance Share Units in connection with the completion of Array's sale of its wireless operation and select spectrum assets.

(5) On March 3, 2025, reporting person was granted an award based on achievement of certain performance measures at 75% of the target opportunity as of the grant date. In connection with the completion of Array's sale of its wireless operation and select spectrum assets, reporting person's performance share units were accelerated for vesting to 100% of target.

**Signature:** Julie D Mathews, by power of atty  
**Date:** 2025-08-05

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**