[Form 4] ACUITY INC. (DE) Insider Trading Activity

Rhea-AI Filing Summary

Acuity Inc. (AYI) reported insider equity activity by its SVP & Chief HR Officer. On 10/24/2025, the officer received 6,322 shares of common stock upon vesting of previously granted performance stock units, recorded at $0 per share. A same‑day transaction withheld 2,886 shares at $370.34 to cover taxes.

Following these transactions, the officer directly holds 15,293 shares. The PSUs were granted on 10/24/2022 with a performance period from 09/01/2022 to 08/31/2025, and the Compensation and Management Development Committee certified achievement on 10/23/2025.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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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^*

MILLS DIANNE S

(Last) (First) (Middle)

C/O ACUITY INC.

1170 PEACHTREE STREET, NE, SUITE 1200

(Street)

ATLANTA GA 30309

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ACUITY INC. (DE) [ AYI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & Chief HR Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/24/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/24/2025		A		6,322(1)	A	$0	18,179	D
Common Stock	10/24/2025		F		2,886(2)	D	$370.34	15,293	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. 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.

Remarks:

	/s/ Chanda Kirchner, Attorney-in-Fact for Dianne S. Mills	10/27/2025
	** Signature of Reporting Person	Date
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.

FAQ

What insider transaction did AYI report?

On 10/24/2025, the SVP & Chief HR Officer received 6,322 common shares from PSU vesting and had 2,886 shares withheld at $370.34 for taxes.

Who is the reporting person and their role at AYI?

The reporting person is an Officer, serving as SVP & Chief HR Officer.

How many AYI shares does the insider hold after the transactions?

The insider directly holds 15,293 shares after the reported transactions.

What were the terms of the AYI PSUs that vested?

PSUs were granted on 10/24/2022, with a performance period from 09/01/2022 to 08/31/2025 and vested on 10/24/2025 after certification on 10/23/2025.

What do the Form 4 transaction codes mean here?

A indicates shares acquired (PSU vesting at $0), and F indicates shares withheld (2,886 at $370.34) to cover taxes.

Did the filing mention any sale on the open market?

No. It reports PSU vesting and share withholding for taxes; no open‑market sale is listed.