Eresearchtechnology Inc: Ownership

Ownership Information
Shares Outstanding 48.00 Mil
Institutional Ownership (%)66.46
Top 10 Institutions (%)40.00
Mutual Fund Ownership (%).38
5%/Insider Ownership (%)4.48
Float (%)95.52
Ownership Activity
Description# of HoldersShares
Total Positions 12731,901,624
New Positions150
Soldout Positions860
Net Position Change-65-7,190,688
Buyers623,561,909
Sellers127-10,752,597
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Columbia Wanger Asset Management, L.P. 4,882,800 2,700 0.1 3,922,980 10.1 0.2 09-30-09
BlackRock Institutional Trust Company, N.A. 3,207,044 211,519 7.1 3,877,053 6.6 0.0 09-30-09
Discovery Group I, LLC 2,033,915 209,522 11.5 2,926,168 4.2 14.3 09-30-09
Vanguard Group, Inc. 1,966,937 -24,618 -1.2 1,420,918 4.1 0.0 09-30-09
Wentworth, Hauser & Violich, Inc. 1,937,232 2,560 0.1 1,565,658 4.0 0.1 09-30-09
Renaissance Technologies Corp. 1,310,201 -128,330 -8.9 252,515 2.7 0.0 09-30-09
Dimensional Fund Advisors, LP 1,215,961 1,445 0.1 981,728 2.5 0.0 09-30-09
State Street Global Advisors (US) 1,013,861 185,685 22.4 1,962,336 2.1 0.0 09-30-09
OppenheimerFunds, Inc. 895,440 523,297 140.6 3,960,793 1.8 0.0 09-30-09
NorthPointe Capital, LLC 743,829 743,829 100.0 5,206,803 1.5 0.5 09-30-09
Invesco Aim Management Group, Inc. 709,195 -10,553 -1.5 501,927 1.5 0.0 09-30-09
Dalton, Greiner, Hartman, Maher & Co., LLC 627,370 80,230 14.7 -59,486 1.3 0.4 12-31-09
Silvercrest Asset Management Group LLC 613,470 613,470 100.0 4,294,290 1.3 0.2 09-30-09
Portolan Capital Management, L.L.C. 607,080 -24,955 -3.9 330,943 1.3 0.9 09-30-09
Fort Washington Investment Advisors, Inc. 543,888 -158,232 -22.5 -545,928 1.1 0.2 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 4:47 AM Eastern Time