Dianne S. Mills - 24 Oct 2025 Form 4 Insider Report for ACUITY INC. (DE) (AYI)

Role: SVP & Chief HR Officer
Signature: /s/ Chanda Kirchner, Attorney-in-Fact for Dianne S. Mills
Issuer symbol: AYI
Transactions as of: 24 Oct 2025
Net transactions value: -$1,068,801
Form type: 4
Filing time: 27 Oct 2025, 16:25:00 UTC
Previous filing: 29 Oct 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
MILLS DIANNE S	SVP & Chief HR Officer	C/O ACUITY INC., 1170 PEACHTREE STREET, NE, SUITE 1200, ATLANTA	/s/ Chanda Kirchner, Attorney-in-Fact for Dianne S. Mills	27 Oct 2025	0001804778

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AYI	Common Stock	Award	$0	+6,322	+53%	$0.000000	18,179	24 Oct 2025	Direct	F1
transaction	AYI	Common Stock	Tax liability	$1,068,801	-2,886	-16%	$370.34	15,293	24 Oct 2025	Direct	F2

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

Explanation of Responses:

Id	Content
F1	The shares were issued upon the achievement and subsequent vesting of performance stock units (PSUs). These PSUs were granted on October 24, 2022, with a three-year performance period that began September 1, 2022, and ended August 31, 2025. On October 23, 2025, the Compensation and Management Development Committee certified the achievement of the performance measures and authorized the issuance of common stock underlying the PSUs on their vesting date, October 24, 2025.
F2	The transactions report the withholding of stock to cover tax liability associated with the vesting of restricted stock units or PSUs held by the reporting person.

Content

The shares were issued upon the achievement and subsequent vesting of performance stock units (PSUs). These PSUs were granted on October 24, 2022, with a three-year performance period that began September 1, 2022, and ended August 31, 2025. On October 23, 2025, the Compensation and Management Development Committee certified the achievement of the performance measures and authorized the issuance of common stock underlying the PSUs on their vesting date, October 24, 2025.

The transactions report the withholding of stock to cover tax liability associated with the vesting of restricted stock units or PSUs held by the reporting person.