FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
MILLS DIANNE S
  2. Issuer Name and Ticker or Trading Symbol
ACUITY BRANDS INC [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
(Last)
(First)
(Middle)
C/O ACUITY BRANDS, INC., 1170 PEACHTREE STREET, NE, SUITE 1200		 3. Date of Earliest Transaction (Month/Day/Year)
10/25/2024
(Street)

ATLANTA, GA 30309		 4. If Amendment, Date 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
(City)
(State)
(Zip)
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 10/25/2024   A   4,830 (1) A $ 0 14,151 D  
Common Stock 10/25/2024   F   2,078 (2) D $ 303.09 12,073 D  
Common Stock 10/26/2024   F   216 D $ 303.09 11,857 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MILLS DIANNE S
C/O ACUITY BRANDS, INC.
1170 PEACHTREE STREET, NE, SUITE 1200
ATLANTA, GA 30309		       SVP & Chief HR Officer  

Signatures

 /s/ Chanda Kirchner, Attorney-in-Fact for Dianne S. Mills   10/29/2024
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) The shares being reported represent the number of shares issued upon the achievement and subsequent vesting of performance stock units (PSUs). These PSUs were granted on October 25, 2021 with a three-year performance period that commenced September 1, 2021 and ended August 31, 2024. On October 24, 2024, the Compensation and Management Development Committee certified the achievement of the performance measure and authorized the subsequent issuance of common stock underlying the PSUs.
(2) The transaction(s) report(s) the withholding of stock to cover tax liability associated with the vesting of restricted stock, restricted stock units or performance stock units held by the reporting person.

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