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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1144215	Acuity Brands Inc	AYI	Electric Lighting & Wiring Equipment (3640)	582632672

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1183382	M Ray Robinson	C/O Acuity Brands, Inc. 1170 Peachtree Street, Nesuite 2400 Atlanta GA 30309		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-10-14	2,123	$15.92	3,123	No	4	M	Direct
Common Stock	Disposition	2010-10-14	2,123	$49.10	1,000	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Non-Qualified Stock Option	Disposition	2010-10-14	2,123	$0.00	2,123	$15.92

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2010-12-20	No	4	M	Direct

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.09 to $49.11, inclusive. The Reporting Person undertakes to provide to Acuity Brands, Inc., any security holder of Acuity Brands, Inc, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
This stock option previously represented the right to purchase 1,755 shares of the Issuer's common stock at an exercise price of $19.27. The stock option was converted to the right to purchase 2,123 shares of the Issuer's common stock at an exercise price of $15.92 effective with the spin-off of the Issuer's specialty chemical business on October 31, 2007. The original option agreement was granted on December 21, 2000 and became fully vested on December 21, 2001.