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Sunday, November 29, 2009, 3:55PM ET - U.S. Markets Closed. Dow  1.48% Nasdaq  1.73%

OSI Systems, Inc. (OSIS)

On Nov 27: 20.22   0.13 (0.64%)

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Major Holders Get Major Holders for:
BREAKDOWN % of Shares Held by All Insider and 5% Owners: 11% % of Shares Held by Institutional & Mutual Fund Owners: 86% % of Float Held by Institutional & Mutual Fund Owners: 96% Number of Institutions Holding Shares: 114 MAJOR DIRECT HOLDERS (FORMS 3 & 4) Holder Shares Reported CHOPRA DEEPAK 598,807 25-Oct-09 MEHRA AJAY 152,265 25-Oct-09 ALIABADI MANOOCHER M 44,355 1-Sep-09 LUSKIN MEYER/ 10,875 14-Oct-09 EDRICK ALAN I 38,120 1-Sep-09
TOP INSTITUTIONAL HOLDERS Holder Shares % Out Value* Reported WELLINGTON MANAGEMENT COMPANY, LLP 1,076,226 6.13 $19,684,173 30-Sep-09 Barclays Global Investors UK Holdings Ltd 903,535 5.15 $16,525,655 30-Sep-09 DIMENSIONAL FUND ADVISORS LP 882,495 5.03 $16,140,833 30-Sep-09 RAMIUS LLC 766,249 4.37 $14,014,694 30-Sep-09 VANGUARD GROUP, INC. (THE) 743,046 4.23 $13,590,311 30-Sep-09 AXA 727,391 4.14 $13,303,981 30-Sep-09 SEGALL BRYANT & HAMILL INVESTMENT COUNSEL 714,856 4.07 $13,074,716 30-Sep-09 WENTWORTH, HAUSER AND VIOLICH 626,450 3.57 $11,457,770 30-Sep-09 Invesco Ltd. 471,170 2.68 $8,617,699 30-Sep-09 WELLS FARGO & COMPANY 2,359,474 13.44 $43,154,779 30-Sep-09 TOP MUTUAL FUND HOLDERS Holder Shares % Out Value* Reported Wells Fargo Advantage Small Cap Value Fd 1,488,400 8.48 $27,222,836 30-Sep-09 ISHARES RUSSELL 2000 INDEX FD 228,979 1.30 $4,188,025 30-Sep-09 DFA U.S. SMALL CAP VALUE SERIES 205,314 1.17 $3,849,637 30-Apr-09 AIM SMALL CAP EQUITY FUND 201,435 1.15 $3,684,246 30-Sep-09 VANGUARD SMALL-CAP INDEX FUND 189,904 1.08 $3,959,498 30-Jun-09 VANGUARD TOTAL STOCK MARKET INDEX FUND 181,767 1.04 $3,789,841 30-Jun-09 RUSSELL (FRANK) U.S. SMALL & MID CAP FUND 157,877 .90 $2,887,570 30-Sep-09 DFA U.S. MICRO CAP SERIES 156,242 .89 $2,929,537 30-Apr-09 Allegiant Small Cap Core Fd 150,320 .86 $2,535,898 31-Aug-09 VANGUARD EXPLORER FUND, INC. 143,900 .82 $2,849,220 31-Jul-09 View Transactions for Insiders & Institutional Holders * Value shown is computed using the security's price on the report date given.
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