Arch Chemicals Inc: Ownership

Ownership Information
Shares Outstanding 25.00 Mil
Institutional Ownership (%)90.61
Top 10 Institutions (%)57.30
Mutual Fund Ownership (%)2.51
5%/Insider Ownership (%).64
Float (%)99.36
Ownership Activity
Description# of HoldersShares
Total Positions 12522,652,028
New Positions90
Soldout Positions570
Net Position Change-54-2,171,838
Buyers531,302,573
Sellers107-3,474,411
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
T. Rowe Price Associates, Inc. 2,997,190 -4,300 -0.1 16,079,089 12.0 0.0 09-30-09
SouthernSun Asset Management, Inc. 1,954,250 -107 0.0 10,550,319 7.8 5.2 09-30-09
Barclays Global Investors, N.A. 1,742,563 151,052 9.5 13,124,209 7.0 0.0 09-30-09
Keeley Asset Management Corp. 1,611,470 -27,840 -1.7 8,017,352 6.4 0.7 09-30-09
Lord, Abbett & Co. LLC 1,380,802 -367,180 -21.0 -1,572,625 5.5 0.1 09-30-09
Snyder Capital Management, L.P. 1,309,599 -84,400 -6.1 4,996,439 5.2 2.2 09-30-09
Vanguard Group, Inc. 1,112,573 26,891 2.5 6,669,144 4.4 0.0 09-30-09
Columbia Management Advisors, LLC 785,615 -8,793 -1.1 4,026,101 3.1 0.0 09-30-09
AllianceBernstein L.P. 770,513 -165,759 -17.7 84,757 3.1 0.0 09-30-09
Fidelity Management & Research 662,000 0 0.0 3,574,800 2.6 0.0 09-30-09
Dimensional Fund Advisors, LP 607,815 -20,479 -3.3 2,778,623 2.4 0.0 09-30-09
State Street Global Advisors (US) 546,092 134,381 32.6 6,253,326 2.2 0.0 09-30-09
Granahan Investment Management, Inc. 517,290 -54,820 -9.6 1,445,342 2.1 0.6 09-30-09
AXA Rosenberg Investment Management LLC 432,792 -87,657 -16.8 181,591 1.7 0.1 09-30-09
FAF Advisors, Inc. 420,602 19,513 4.9 2,751,075 1.7 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 11/26/2009 7:11 AM Eastern Time