Douglas W. Chambers - 01 Aug 2025 Form 4 Insider Report for ARRAY DIGITAL INFRASTRUCTURE, INC. (USM)

Role: Interim President and CEO, Director
Signature: Julie D Mathews, by power of atty
Issuer symbol: USM
Transactions as of: 01 Aug 2025
Net transactions value: -$6,743,919
Form type: 4
Filing time: 05 Aug 2025, 18:58:01 UTC
Previous filing: 07 Apr 2025
Next filing: 14 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Chambers Douglas W	Interim President and CEO, Director	500 W. MADISON STREET, SUITE 810, CHICAGO	Julie D Mathews, by power of atty	05 Aug 2025	0001739622

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	USM	Common Shares	Options Exercise		+11,522	+14%		94,517	01 Aug 2025	Direct	F1
transaction	USM	Common Shares	Tax liability	$398,076	-5,416	-5.7%	$73.50	89,101	01 Aug 2025	Direct	F2
transaction	USM	Common Shares	Options Exercise		+41,132	+46%		130,233	01 Aug 2025	Direct	F3
transaction	USM	Common Shares	Tax liability	$1,420,976	-19,333	-15%	$73.50	110,900	01 Aug 2025	Direct	F2
transaction	USM	Common Shares	Options Exercise		+67,005	+60%		177,905	01 Aug 2025	Direct	F4
transaction	USM	Common Shares	Disposed to Issuer	$4,924,868	-67,005	-38%	$73.50	110,900	01 Aug 2025	Direct	F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	USM	Restricted Stock Units	Options Exercise		-11,522	-100%		0	01 Aug 2025	Common Shares	11,522		Direct	F1
transaction	USM	Performance Share Units	Options Exercise		-41,132	-100%		0	01 Aug 2025	Common Shares	41,132		Direct	F3
transaction	USM	Performance Share Units	Options Exercise		-30,225	-100%		0	01 Aug 2025	Common Shares	30,225		Direct	F4
transaction	USM	Restricted Stock Units	Options Exercise		-13,812	-100%		0	01 Aug 2025	Common Shares	13,812		Direct	F4
transaction	USM	Performance Share Units	Award		+2,871	+33%		11,484	01 Aug 2025	Common Shares	2,871		Direct	F5
transaction	USM	Performance Share Units	Options Exercise		-11,484	-100%		0	01 Aug 2025	Common Shares	11,484		Direct	F4
transaction	USM	Restricted Stock Units	Options Exercise		-11,484	-100%		0	01 Aug 2025	Common Shares	11,484		Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	Shares withheld to pay taxes.
F3	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.
F4	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.
F5	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.