Martin Marietta Materials Inc: Ownership

Ownership Information
Shares Outstanding 45.00 Mil
Institutional Ownership (%)91.21
Top 10 Institutions (%)56.20
Mutual Fund Ownership (%)1.28
5%/Insider Ownership (%)1.77
Float (%)98.23
Ownership Activity
Description# of HoldersShares
Total Positions 24541,042,552
New Positions330
Soldout Positions1260
Net Position Change-105-5,458,210
Buyers1133,227,473
Sellers218-8,685,683
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Davis Selected Advisers, L.P. 6,263,165 -12,660 -0.2 81,612,528 14.1 1.0 09-30-09
SPO Partners & Co. 5,381,235 0 0.0 70,978,488 12.1 9.1 09-30-09
CI Investments Inc. 2,100,000 0 0.0 -5,586,000 4.7 3.2 12-31-09
Morgan Stanley Investment Management Inc. (US) 1,957,831 7,418 0.4 26,408,924 4.4 0.4 09-30-09
BlackRock Institutional Trust Company, N.A. 1,910,874 32,291 1.7 27,751,542 4.3 0.0 09-30-09
RS Investments 1,798,006 352,013 24.3 51,482,484 4.0 2.0 09-30-09
Gardner Russo & Gardner 1,693,046 -47,381 -2.7 18,593,864 3.8 7.8 09-30-09
Vanguard Group, Inc. 1,577,393 56,506 3.7 25,263,008 3.5 0.0 09-30-09
Van Kampen Asset Management 1,473,267 -70,080 -4.5 13,904,482 3.3 0.3 09-30-09
Harris Associates L.P. 1,135,125 51,225 4.7 19,012,928 2.5 0.3 09-30-09
State Street Global Advisors (US) 1,002,580 17,967 1.8 14,641,268 2.3 0.0 09-30-09
Wellington Management Company, LLP 838,102 -9,975 -1.2 10,267,737 1.9 0.0 09-30-09
Columbia Wanger Asset Management, L.P. 740,900 -100 0.0 9,764,583 1.7 0.4 09-30-09
Chapter IV Investors, LLC 610,000 0 0.0 8,045,900 1.4 28.3 09-30-09
York Capital Management 607,557 -39,743 -6.1 4,878,749 1.4 4.8 09-30-09
*Category Headings:
Shs Held - shares held at report date
Shs Chg - position change within reporting period
%Chg - % change
$Chg - market value of the position change
%Out - % of shares outstanding
%Port - % Portfolio
Rpt Date - report date
Page generated 2/10/2010 12:22 AM Eastern Time