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Institutional Holdings of ACUITY BRANDS INC (HOLDING COMPANY) (AYI) on 12/31/2011

1. Company Information

Company/StockACUITY BRANDS INC (HOLDING COMPANY) (stock symbol: AYI)
Funds Ownership168 out of total 3028 funds (6%) own this stock
Funds own total 37,745,378 shares, 88.81% of all outstanding shares
Funds SOLD -698,026 shares (-1.82%) in the quarter ended on 12/31/2011

2. Top 20 Funds Held AYI in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)PRICE T ROWE ASSOCIATES INC MD 6,170,947Added 0.44%0.11%14.52%
2.)VANGUARD GROUP INC2,071,874Added 0.74%0.02%4.87%
3.)COLUMBIA WANGER ASSET MANAGEMENT LP1,962,500Cut -0.20%0.51%4.62%
4.)WADDELL & REED FINANCIAL INC1,744,223Added 2.30%0.23%4.10%
5.)ATLANTA CAPITAL MANAGEMENT CO L L C1,657,266Cut -0.92%0.97%3.90%
6.)STANDARD LIFE INVESTMENTS LTD1,536,318Cut -51.21%0.69%3.61%
7.)BLACKROCK FUND ADVISORS1,435,176Cut -1.25%0.04%3.38%
8.)STATE STREET CORP1,392,920Added 1.43%0.01%3.28%
9.)FMR LLC1,386,516Cut -46.87%0.02%3.26%
10.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA1,230,109Added 2.78%0.02%2.89%
11.)ING INVESTMENT MANAGEMENT CO1,164,721Added 4.33%0.24%2.74%
12.)KEELEY ASSET MANAGEMENT CORP905,469Cut -14.03%1.00%2.13%
13.)WELLINGTON MANAGEMENT CO LLP875,996Added 0.72%0.02%2.06%
14.)NORTHERN TRUST CORP798,960Added 1.04%0.02%1.88%
15.)STANDARD LIFE INVESTMENTS LTD738,242Cut -51.21%0.33%1.74%
16.)TOCQUEVILLE ASSET MANAGEMENT LP661,182Unchanged0.36%1.56%
17.)EATON VANCE MANAGEMENT644,460Cut -0.26%0.08%1.52%
18.)ROYCE & ASSOCIATES LLC614,468Cut -10.59%0.11%1.45%
19.)J P MORGAN CHASE & CO598,451Added 10.55%0.02%1.41%
20.)ADAGE CAPITAL PARTNERS GP LLC516,205New0.12%1.21%



3. Top 20 Funds Held AYI in this Quarter (By % of Portfolio) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)LATHROP INVESTMENT MANAGEMENT CORP81,086Added 1.22%2.89%0.19%
2.)PECONIC PARTNERS LLC163,190Added 62.70%2.03%0.38%
3.)BUFORD DICKSON HARPER & SPARROW INC28,090New1.88%0.07%
4.)CUPPS CAPITAL MANAGEMENT LLC180,670New1.43%0.43%
5.)KEELEY ASSET MANAGEMENT CORP905,469Cut -14.03%1.00%2.13%
6.)ATLANTA CAPITAL MANAGEMENT CO L L C1,657,266Cut -0.92%0.97%3.90%
7.)STANDARD LIFE INVESTMENTS LTD1,536,318Cut -51.21%0.69%3.61%
8.)GABELLI SECURITIES INC45,000New0.68%0.11%
9.)NETOLS ASSET MANAGEMENT INC82,939New0.62%0.20%
10.)COLUMBIA WANGER ASSET MANAGEMENT LP1,962,500Cut -0.20%0.51%4.62%
11.)KNOTT ASSET MANAGEMENT LLC6,680Added 0.91%0.46%0.02%
12.)FIDUCIARY SERVICES CORP GA14,725Cut -1.34%0.45%0.03%
13.)FIRST CITY CAPITAL MANAGEMENT INC7,622Cut -7.86%0.42%0.02%
14.)SUFFOLK CAPITAL MANAGEMENT LLC63,800Added 16.00%0.39%0.15%
15.)RICE HALL JAMES & ASSOCIATES LLC68,998Cut -28.73%0.39%0.16%
16.)EULAV ASSET MANAGEMENT106,100New0.37%0.25%
17.)TOCQUEVILLE ASSET MANAGEMENT LP661,182Unchanged0.36%1.56%
18.)STANDARD LIFE INVESTMENTS LTD738,242Cut -51.21%0.33%1.74%
19.)PARAMETRICA MANAGEMENT LTD24,201Added 72.14%0.31%0.06%
20.)ING INVESTMENT MANAGEMENT CO1,164,721Added 4.33%0.24%2.74%

4. Top 20 Funds BOUGHT NEW AYI in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)ADAGE CAPITAL PARTNERS GP LLC516,2050.12%1.21%
2.)CUPPS CAPITAL MANAGEMENT LLC180,6701.43%0.43%
3.)PEAK6 INVESTMENTS LP124,800CALL0.03%0.29%
4.)LEVIN CAPITAL STRATEGIES LP113,6500.18%0.27%
5.)EULAV ASSET MANAGEMENT106,1000.37%0.25%
6.)NETOLS ASSET MANAGEMENT INC82,9390.62%0.20%
7.)SPOT TRADING LLC63,000CALL0.04%0.15%
8.)GABELLI SECURITIES INC45,0000.68%0.11%
9.)BUFORD DICKSON HARPER & SPARROW INC28,0901.88%0.07%
10.)BATTERYMARCH FINANCIAL MANAGEMENT INC22,1000.02%0.05%
11.)WILMINGTON TRUST NATIONAL ASSOCIATION17,0000.06%0.04%
12.)MADISON SQUARE INVESTORS LLC11,7000.01%0.03%
13.)TURNER INVESTMENT PARTNERS INC9,2100.00%0.02%
14.)HBK INVESTMENTS L P6,5000.01%0.02%
15.)PROFUND ADVISORS LLC5,7310.03%0.01%
16.)ELLINGTON MANAGEMENT GROUP LLC5,5000.13%0.01%
17.)GSA CAPITAL PARTNERS LLP5,3600.05%0.01%
18.)GUGGENHEIM CAPITAL LLC4,9090.00%0.01%
19.)1ST GLOBAL ADVISORS INC4,4670.06%0.01%
20.)SUSQUEHANNA INTERNATIONAL GROUP LLP4,0930.00%0.01%

5. Top 20 Funds SOLD OUT AYI in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)EULAV ASSET MANAGEMENT LLC106,1000.27%0.25%
2.)GW CAPITAL MANAGEMENT LLC43,9110.05%0.10%
3.)VOLEON CAPITAL MANAGEMENT LP39,5000.93%0.09%
4.)MAGNETAR FINANCIAL LLC35,3020.07%0.08%
5.)WILMINGTON TRUST FSB34,0000.09%0.08%
6.)CAXTON ASSOCIATES LLC27,2410.05%0.06%
7.)BRIDGEWATER ASSOCIATES INC25,6000.01%0.06%
8.)SANTA FE PARTNERS LLC24,2840.14%0.06%
9.)FIL LTD17,7000.00%0.04%
10.)TIMBER HILL LLC14,700PUT0.00%0.03%
11.)COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS10,6690.01%0.03%
12.)BNP PARIBAS ARBITRAGE SA10,6400.00%0.03%
13.)BNP PARIBAS ARBITRAGE SNC10,6400.00%0.03%
14.)HIGHBRIDGE CAPITAL MANAGEMENT LLC10,1060.00%0.02%
15.)CROFT LEOMINSTER INC7,2600.00%0.02%
16.)CREDIT SUISSE 7,200PUT0.00%0.02%
17.)TUDOR INVESTMENT CORP ET AL6,2000.01%0.01%
18.)CONCERT WEALTH MANAGEMENT INC3,2620.03%0.01%
19.)MADISON SQUARE INVESTORS LLC2,6690.00%0.01%
20.)LI WINIFRED I1,5600.06%0.00%