Prosperity Bancshares Inc: Ownership

Ownership Information
Shares Outstanding 47.00 Mil
Institutional Ownership (%)77.06
Top 10 Institutions (%)37.00
Mutual Fund Ownership (%)1.52
5%/Insider Ownership (%)11.71
Float (%)88.29
Ownership Activity
Description# of HoldersShares
Total Positions 19236,215,896
New Positions270
Soldout Positions660
Net Position Change-28-3,355,954
Buyers1043,938,616
Sellers132-7,294,570
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
BlackRock Institutional Trust Company, N.A. 3,488,883 395,241 12.8 29,094,900 7.5 0.0 09-30-09
Rainier Investment Management, Inc. 2,595,485 186,515 7.7 18,437,348 5.6 0.6 09-30-09
Dimensional Fund Advisors, LP 1,962,531 -143,173 -6.8 5,463,303 4.2 0.1 09-30-09
Vanguard Group, Inc. 1,890,459 67,632 3.7 11,394,140 4.1 0.0 09-30-09
State Street Global Advisors (US) 1,728,395 200,183 13.1 14,544,298 3.7 0.0 09-30-09
Vaughan Nelson Investment Management, L.P. 1,583,450 -270,825 -14.6 -224,797 3.4 1.5 09-30-09
Systematic Financial Management, L.P. 1,453,607 123,774 9.3 10,902,070 3.1 0.7 09-30-09
T. Rowe Price Associates, Inc. 1,129,860 -10,400 -0.9 5,293,873 2.4 0.0 09-30-09
Jennison Associates LLC 842,750 164,700 24.3 9,093,042 1.8 0.1 09-30-09
Goldman Sachs Asset Management (US) 735,305 -30,346 -4.0 2,741,892 1.6 0.0 09-30-09
The Boston Company Asset Management, LLC 696,769 440,410 171.8 19,279,512 1.5 0.1 12-31-09
Turner Investment Partners, Inc. 688,422 133,935 24.2 7,409,854 1.5 0.1 09-30-09
Northern Trust Investments, N.A. 632,302 312,059 97.4 12,444,938 1.4 0.0 09-30-09
Columbia Management Advisors, LLC 615,676 40,996 7.1 4,276,664 1.3 0.0 09-30-09
Principal Global Investors (Equity) 555,490 9,977 1.8 3,052,844 1.2 0.1 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 12:50 AM Eastern Time