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Institutional Holdings of MARTIN MARIETTA MATERIALS, INC. (MLM) on 12/31/2011

1. Company Information

Company/StockMARTIN MARIETTA MATERIALS, INC. (stock symbol: MLM)
Funds Ownership226 out of total 3028 funds (7%) own this stock
Funds own total 45,874,608 shares, 100.62% of all outstanding shares
Funds SOLD -744,363 shares (-1.60%) in the quarter ended on 12/31/2011

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

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)SOUTHEASTERN ASSET MANAGEMENT INC TN 5,982,970Added 7.60%2.04%13.12%
2.)RS INVESTMENT MANAGEMENT CO LLC4,679,648Cut -0.91%3.37%10.26%
3.)SPO ADVISORY CORP4,090,235Unchanged3.84%8.97%
4.)CI INVESTMENTS INC2,450,000Unchanged2.19%5.37%
5.)DAVIS SELECTED ADVISERS2,370,453Cut -28.27%0.39%5.20%
6.)ARNHOLD & S BLEICHROEDER ADVISERS LLC2,318,587Added 2.23%0.77%5.09%
7.)MORGAN STANLEY1,967,619Added 0.12%0.09%4.32%
8.)VANGUARD GROUP INC1,853,328Added 0.46%0.02%4.07%
9.)GARDNER RUSSO & GARDNER1,581,311Added 0.74%2.20%3.47%
10.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA1,341,953Added 15.25%0.03%2.94%
11.)STATE STREET CORP1,192,947Added 0.71%0.02%2.62%
12.)BLACKROCK FUND ADVISORS938,919Added 2.02%0.04%2.06%
13.)UBS GLOBAL ASSET MANAGEMENT AMERICAS INC870,116Cut -32.07%0.10%1.91%
14.)WEITZ WALLACE R & CO852,558Cut -4.80%2.96%1.87%
15.)CAPITAL WORLD INVESTORS823,449Cut -42.82%0.02%1.81%
16.)DEPRINCE RACE & ZOLLO INC618,100New0.89%1.36%
17.)CHAPTER IV INVESTORS LLC610,000Unchanged19.72%1.34%
18.)MARSHFIELD ASSOCIATES602,809Added 3.36%4.50%1.32%
19.)BANK OF NEW YORK MELLON CORP482,815Added 9.51%0.02%1.06%
20.)KING LUTHER CAPITAL MANAGEMENT CORP463,349Added 17.62%0.49%1.02%



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

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)CHAPTER IV INVESTORS LLC610,000Unchanged19.72%1.34%
2.)MARSHFIELD ASSOCIATES602,809Added 3.36%4.50%1.32%
3.)SPO ADVISORY CORP4,090,235Unchanged3.84%8.97%
4.)RS INVESTMENT MANAGEMENT CO LLC4,679,648Cut -0.91%3.37%10.26%
5.)WEITZ WALLACE R & CO852,558Cut -4.80%2.96%1.87%
6.)INDEPENDENCE CAPITAL ASSET PARTNERS LLC151,660Added 3,198.39%2.47%0.33%
7.)GARDNER RUSSO & GARDNER1,581,311Added 0.74%2.20%3.47%
8.)CI INVESTMENTS INC2,450,000Unchanged2.19%5.37%
9.)SOUTHEASTERN ASSET MANAGEMENT INC TN 5,982,970Added 7.60%2.04%13.12%
10.)HARVEY PARTNERS LLC70,000Unchanged2.02%0.15%
11.)FLIPPIN BRUCE & PORTER INC124,721Cut -17.39%1.78%0.27%
12.)WEIK INVESTMENT SERVICES INC16,951Cut -0.29%1.23%0.04%
13.)LONDON CO OF VIRGINIA402,728Added 0.48%1.22%0.88%
14.)HERITAGE INVESTORS MANAGEMENT CORP95,369Cut -1.05%1.02%0.21%
15.)BALYASNY ASSET MANAGEMENT LLC224,200New0.92%0.49%
16.)DEPRINCE RACE & ZOLLO INC618,100New0.89%1.36%
17.)CAXTON ASSOCIATES LLC366,695New0.88%0.80%
18.)CONFLUENCE INVESTMENT MANAGEMENT LLC98,768Added 8.33%0.83%0.22%
19.)DAVIDSON INVESTMENT ADVISORS65,885Cut -3.09%0.79%0.14%
20.)ARNHOLD & S BLEICHROEDER ADVISERS LLC2,318,587Added 2.23%0.77%5.09%

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

No.FundSharesPut/Call% Port.% Out. Shrs
1.)DEPRINCE RACE & ZOLLO INC618,1000.89%1.36%
2.)CAXTON ASSOCIATES LLC366,6950.88%0.80%
3.)BALYASNY ASSET MANAGEMENT LLC224,2000.92%0.49%
4.)STEADFAST CAPITAL MANAGEMENT LLC188,9520.47%0.41%
5.)KARSCH CAPITAL MANAGEMENT LP87,1800.36%0.19%
6.)J P MORGAN CHASE & CO60,000PUT0.00%0.13%
7.)GLG INC59,100CALL0.18%0.13%
8.)PENTWATER CAPITAL MANAGEMENT LP57,5000.10%0.13%
9.)CHESAPEAKE PARTNERS MANAGEMENT CO INC MD50,0000.25%0.11%
10.)GLG PARTNERS LP40,900CALL0.21%0.09%
11.)OZ MANAGEMENT LP38,600PUT0.01%0.08%
12.)OZ MANAGEMENT LP38,6000.01%0.08%
13.)AQR CAPITAL MANAGEMENT LLC27,6000.01%0.06%
14.)DAVIDSON KEMPNER CAPITAL MANAGEMENT LLC26,6000.17%0.06%
15.)OXFORD ASSET MANAGEMENT26,2010.05%0.06%
16.)SG AMERICAS SECURITIES LLC25,000CALL0.00%0.05%
17.)MILLENNIUM MANAGEMENT LLC22,3890.01%0.05%
18.)FJARDE AP FONDEN (THE FOURTH SWEDISH NATIONAL PENSIONFUND)17,7600.03%0.04%
19.)HUDSON BAY CAPITAL MANAGEMENT LP16,1280.07%0.04%
20.)MAPLE SECURITIES USA INC13,1010.42%0.03%

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

No.FundSharesPut/Call% Port.% Out. Shrs
1.)ULYS LLC200,000CALL1.83%0.44%
2.)ULYS LLC200,0001.83%0.44%
3.)TEMPUS QUO CAPITAL MANAGEMENT LLC145,6002.89%0.32%
4.)CREDIT SUISSE 115,500CALL0.01%0.25%
5.)DOUGLASS WINTHROP ADVISORS LLC100,4301.13%0.22%
6.)ING INVESTMENT MANAGEMENT (EUROPE) BV82,9000.06%0.18%
7.)MOAB CAPITAL PARTNERS LLC56,7002.20%0.12%
8.)PORTER ORLIN LLC43,7000.20%0.10%
9.)TIMBER HILL LLC38,300PUT0.01%0.08%
10.)JEFFERIES GROUP INC DE 33,900PUT0.02%0.07%
11.)WEISS MULTI STRATEGY ADVISERS LLC30,0000.06%0.07%
12.)COMMERZBANK AKTIENGESELLSCHAFT FI27,9380.01%0.06%
13.)ORBITRONIX LP20,000CALL1.10%0.04%
14.)VOLLERO BEACH CAPITAL PARTNERS LLC19,4530.32%0.04%
15.)TIMBER HILL LLC18,000CALL0.00%0.04%
16.)BRYN MAWR CAPITAL MANAGEMENT INC15,2730.08%0.03%
17.)TIMBER HILL LLC14,8010.00%0.03%
18.)FAIM INVESTMENTS LLC12,3620.64%0.03%
19.)COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS11,2460.02%0.02%
20.)CAPITAL FUND MANAGEMENT SA10,400CALL0.01%0.02%