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Friday, January 8, 2010, 5:42AM ET - U.S. Markets open in 3 hours and 48 minutes. Dow Up 0.31% Nasdaq  0.00%
IsoRay, Inc. (ISR)On Jan 7: 0.84   0.00 (0.00%)  
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Major HoldersGet Major Holders for:
BREAKDOWN
% of Shares Held by All Insider and 5% Owners: 2%
% of Shares Held by Institutional & Mutual Fund Owners: 3%
% of Float Held by Institutional & Mutual Fund Owners: 3%
Number of Institutions Holding Shares: 10

MAJOR DIRECT HOLDERS (FORMS 3 & 4)
HolderSharesReported
SWANBERG DAVID329,40915-Feb-08
SMITH ALBERT LOUIS198,10126-Nov-08
BABCOCK DWIGHT WILLIAM128,16127-Feb-09
LAVOY THOMAS C40,42326-Nov-08
WOODS LORI A8,00019-May-08


TOP INSTITUTIONAL HOLDERS
HolderShares% OutValue*Reported
PERRITT CAPITAL MANAGEMENT, INC.209,000.91$229,90030-Sep-09
RENAISSANCE TECHNOLOGIES, LLC28,800.13$31,68030-Sep-09
DIMENSIONAL FUND ADVISORS LP16,520.07$18,17230-Sep-09
CALPERS (CALIFORNIA-PUBLIC EMPLOYEES RETIREMENT SYSTEM)10,500.05$11,55030-Sep-09
Dominick & Dominick, LLC10,000.04$11,00030-Sep-09
RBC Capital Markets Corporation10,000.04$11,00030-Sep-09
WELLS FARGO & COMPANY10,000.04$11,00030-Sep-09
MERRILL LYNCH & CO., INC.6,000.03$6,60030-Sep-09
UBS AG3,847.02$4,23130-Sep-09

TOP MUTUAL FUND HOLDERS
HolderShares% OutValue*Reported
PERRITT EMERGING OPPORTUNITIES FUND209,000.91$229,90030-Sep-09
OPTIMUM FDS TR-SMALL-MID CAP GROWTH FD101,000.44$25,25030-Jun-09
DFA U.S. Vector Equity Portfolio8,600.04$3,09630-Apr-09
DFA U.S. MICRO CAP SERIES20.00$1031-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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