Cabot Microelectronics Corp: Ownership

Ownership Information
Shares Outstanding 24.00 Mil
Institutional Ownership (%)73.31
Top 10 Institutions (%)47.50
Mutual Fund Ownership (%)1.80
5%/Insider Ownership (%)4.11
Float (%)95.89
Ownership Activity
Description# of HoldersShares
Total Positions 15317,593,836
New Positions280
Soldout Positions620
Net Position Change-32-2,816,049
Buyers811,511,971
Sellers113-4,328,020
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Shapiro Capital Management LLC 3,014,631 -9,760 -0.3 19,530,016 12.8 5.2 09-30-09
Snyder Capital Management, L.P. 1,631,899 -189,330 -10.4 5,365,431 6.9 3.2 09-30-09
BlackRock Institutional Trust Company, N.A. 1,610,393 97,976 6.5 13,352,023 6.8 0.0 09-30-09
Vanguard Group, Inc. 1,023,384 21,520 2.1 7,332,433 4.3 0.0 09-30-09
Renaissance Technologies Corp. 875,800 -125,600 -12.5 2,200,782 3.7 0.1 09-30-09
Columbia Management Advisors, LLC 821,038 -79,286 -8.8 3,151,219 3.5 0.0 09-30-09
T. Rowe Price Associates, Inc. 779,946 -3,100 -0.4 5,036,547 3.3 0.0 09-30-09
Dimensional Fund Advisors, LP 573,833 -20,868 -3.5 3,179,727 2.4 0.0 09-30-09
Sterling Capital Management, LLC 535,067 56,150 11.7 5,103,874 2.3 0.9 09-30-09
Invesco Aim Management Group, Inc. 530,568 14,295 2.8 3,890,237 2.3 0.1 09-30-09
State Street Global Advisors (US) 523,406 124,688 31.3 6,966,201 2.2 0.0 09-30-09
Riverbridge Partners, LLC 509,133 43,422 9.3 4,573,412 2.2 1.4 09-30-09
Century Capital Management, LLC 452,395 452,395 100.0 15,770,490 1.9 1.0 09-30-09
Evergreen Investment Management Company, LLC 329,605 -6,061 -1.8 1,994,039 1.4 0.0 09-30-09
Northern Trust Investments, N.A. 245,710 51,539 26.5 3,072,353 1.0 0.0 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 4:50 AM Eastern Time