Power Integrations Inc: Ownership

Ownership Information
Shares Outstanding 27.00 Mil
Institutional Ownership (%)98.13
Top 10 Institutions (%)49.20
Mutual Fund Ownership (%)3.68
5%/Insider Ownership (%)9.21
Float (%)90.79
Ownership Activity
Description# of HoldersShares
Total Positions 14326,496,378
New Positions260
Soldout Positions480
Net Position Change-30-1,721,276
Buyers704,658,325
Sellers100-6,379,601
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Fidelity Management & Research 3,622,408 -47,900 -1.3 33,418,232 13.4 0.0 09-30-09
Wasatch Advisors, Inc. 1,845,892 -142,003 -7.1 14,231,558 6.8 1.5 09-30-09
BlackRock Institutional Trust Company, N.A. 1,295,884 57,398 4.6 13,728,232 4.8 0.0 09-30-09
Jennison Associates LLC 1,095,196 -424,018 -27.9 360,782 4.1 0.1 09-30-09
Lord, Abbett & Co. LLC 1,038,566 -545,500 -34.4 -3,069,525 3.8 0.1 09-30-09
Columbia Management Advisors, LLC 993,633 -39,052 -3.8 8,550,212 3.7 0.0 09-30-09
7x7 Asset Management, L.L.C. 990,000 965,000 3,860.0 32,401,950 3.7 5.8 09-30-09
Friess Associates LLC 901,600 233,100 34.9 14,146,713 3.3 0.3 09-30-09
TimesSquare Capital Management, LLC 822,900 -317,100 -27.8 306,657 3.0 0.3 09-30-09
Riverbridge Partners, LLC 680,915 36,106 5.6 7,354,891 2.5 1.7 09-30-09
Dimensional Fund Advisors, LP 627,158 -9,821 -1.5 5,749,446 2.3 0.0 09-30-09
Impax Asset Management Ltd. 593,681 -273,990 -31.6 -854,505 2.2 4.3 09-30-09
Franklin Advisers, Inc. 584,410 -29,802 -4.9 4,866,282 2.2 0.1 09-30-09
Copper Rock Capital Partners LLC 539,159 539,159 100.0 17,970,168 2.0 1.2 09-30-09
Arbor Capital Management, LLC (MN) 536,000 67,900 14.5 6,728,781 2.0 2.0 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 4:09 AM Eastern Time