BlackRock Senior High Income Fund: Ownership

Ownership Information
Shares Outstanding 57.00 Mil
Institutional Ownership (%)8.14
Top 10 Institutions (%)7.30
Mutual Fund Ownership (%).67
5%/Insider Ownership (%).00
Float (%).00
Ownership Activity
Description# of HoldersShares
Total Positions 304,639,583
New Positions40
Soldout Positions150
Net Position Change-7-1,396,652
Buyers141,969,896
Sellers21-3,366,548
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Morgan Stanley Smith Barney LLC 1,157,211 1,157,211 100.0 3,969,234 2.0 0.0 09-30-09
Loomis, Sayles & Company, L.P. 566,863 0 0.0 243,751 1.0 0.0 09-30-09
Van Kampen Asset Management 553,614 -30,801 -5.3 145,651 1.0 0.0 09-30-09
Millennium Management, L.L.C. 542,900 542,900 100.0 1,862,147 1.0 0.0 09-30-09
Green Square Capital, L.L.C. 387,708 -5,465 -1.4 150,319 0.7 0.8 09-30-09
Claymore Advisors, LLC 326,388 -19,503 -5.6 81,838 0.6 0.0 09-30-09
Linscomb & Williams, Inc. 269,344 30,009 12.5 121,785 0.5 0.3 12-31-09
Horizon Asset Management, Inc. 138,809 77,101 124.9 290,991 0.2 0.0 09-30-09
Wells Fargo Securities, LLC 133,595 30,175 29.2 147,971 0.2 0.0 09-30-09
AIG Investments 100,926 700 0.7 45,498 0.2 0.0 09-30-09
Dane, Falb, Stone, & Co. Inc. 94,065 1,520 1.6 45,008 0.2 0.9 09-30-09
Oppenheimer Asset Management Inc. 94,000 94,000 100.0 322,420 0.2 0.0 09-30-09
First Allied Securities Inc. 68,816 9,525 16.1 58,166 0.1 0.1 09-30-09
RBC Capital Markets Wealth Management 51,260 9,928 24.0 51,826 0.1 0.0 09-30-09
UBS Securities LLC 50,040 6,394 14.7 40,699 0.1 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 2/10/2010 10:39 AM Eastern Time