OSI Systems Inc: Ownership

Ownership Information
Shares Outstanding 18.00 Mil
Institutional Ownership (%)79.55
Top 10 Institutions (%)47.20
Mutual Fund Ownership (%)2.16
5%/Insider Ownership (%)10.61
Float (%)89.39
Ownership Activity
Description# of HoldersShares
Total Positions 11614,318,756
New Positions170
Soldout Positions510
Net Position Change-26-2,951,441
Buyers611,417,771
Sellers87-4,369,212
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Wells Capital Management Inc. 2,037,405 -133,802 -6.2 9,347,275 11.6 0.2 06-30-09
Barclays Global Investors, N.A. 957,582 94,409 10.9 6,793,565 5.5 0.0 06-30-09
Wellington Management Company, LLP 951,976 125,670 15.2 7,239,270 5.4 0.0 06-30-09
Dimensional Fund Advisors, LP 882,495 -59,427 -6.3 -3,498,240 5.0 0.0 09-30-09
AXA Rosenberg Investment Management LLC 754,991 -37,331 -4.7 3,650,728 4.3 0.1 06-30-09
Vanguard Group, Inc. 721,105 76,457 11.9 5,197,711 4.1 0.0 06-30-09
Segall, Bryant & Hamill Investment Counsel 715,248 -121,971 -14.6 2,136,959 4.1 0.8 06-30-09
Roxbury Capital Management, L.L.C. 547,868 -78,321 -12.5 1,867,404 3.1 1.2 06-30-09
Wentworth, Hauser & Violich, Inc. 542,750 -700 -0.1 3,023,291 3.1 0.1 06-30-09
Fiduciary Management Associates, LLC 390,703 150,700 62.8 2,141,895 2.2 0.6 09-30-09
Invesco Aim Management Group, Inc. 386,148 -12,078 -3.0 1,974,257 2.2 0.0 06-30-09
Principal Global Investors (Equity) 335,600 3,000 0.9 -796,586 1.9 0.0 09-30-09
Kennedy Capital Management, Inc. 311,674 51,004 19.6 2,520,579 1.8 0.3 06-30-09
Peregrine Capital Management, Inc. 304,690 -146,610 -32.5 -534,051 1.7 0.2 06-30-09
State Street Global Advisors (US) 259,158 -44,309 -14.6 772,538 1.5 0.0 06-30-09
*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 11/24/2009 9:34 PM Eastern Time