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Saturday, November 28, 2009, 2:12PM ET - U.S. Markets Closed. Dow Down 1.48% Nasdaq Down 1.73%
National Instruments Corp. (NATI)On Nov 27: 28.32  Down 0.38 (1.32%)  
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Major HoldersGet Major Holders for:
BREAKDOWN
% of Shares Held by All Insider and 5% Owners: 27%
% of Shares Held by Institutional & Mutual Fund Owners: 71%
% of Float Held by Institutional & Mutual Fund Owners: 97%
Number of Institutions Holding Shares: 175

MAJOR DIRECT HOLDERS (FORMS 3 & 4)
HolderSharesReported
TRUCHARD JAMES J16,156,54122-Sep-08
KODOSKY JEFFREY L828,33023-Nov-09
PORTERFIELD ROBERT44,1721-May-09
ZOGAS PETER64,53824-Aug-09
RAZDAN ASH56,17323-Nov-09


TOP INSTITUTIONAL HOLDERS
HolderShares% OutValue*Reported
PRICE (T.ROWE) ASSOCIATES INC4,322,5005.56$119,430,67530-Sep-09
ROYCE & ASSOCIATES, LLC4,256,6565.48$117,611,40530-Sep-09
Capital World Investors3,780,9934.86$104,468,83630-Sep-09
EAGLE CAPITAL MANAGEMENT L.L.C.2,761,1643.55$76,290,96130-Sep-09
Invesco Ltd.2,657,6883.42$73,431,91930-Sep-09
Barclays Global Investors UK Holdings Ltd2,366,0133.04$65,372,93930-Sep-09
VANGUARD GROUP, INC. (THE)2,250,3202.90$62,176,34130-Sep-09
KORNITZER CAPITAL MANAGEMENT, INC.1,725,3352.22$47,671,00630-Sep-09
LUTHER KING CAPITAL MANAGEMENT1,430,2801.84$39,518,63630-Sep-09
RIVERBRIDGE PARTNERS LLC1,392,2601.79$38,468,14330-Sep-09

TOP MUTUAL FUND HOLDERS
HolderShares% OutValue*Reported
ROYCE PREMIER FUND2,403,1013.09$54,213,95830-Jun-09
SMALLCAP WORLD FUND2,072,6532.67$46,759,05130-Jun-09
NEUBERGER & BERMAN GUARDIAN FUND1,640,7542.11$45,334,03330-Sep-09
NEUBERGER & BERMAN SOCIALLY RESPONSIVE FUND1,571,2182.02$43,412,75330-Sep-09
BUFFALO SMALL CAP FUND1,266,9751.63$28,582,95630-Jun-09
PRICE (T.ROWE) MID-CAP VALUE FUND1,225,0001.58$33,846,75030-Sep-09
PENNSYLVANIA MUTUAL FUND INC903,1001.16$20,373,93630-Jun-09
PRICE (T.ROWE) SMALL CAP STOCK FUND800,0001.03$22,104,00030-Sep-09
PRICE (T.ROWE) NEW HORIZONS FUND728,900.94$20,139,50730-Sep-09
VANGUARD SMALL-CAP INDEX FUND724,155.93$16,336,93630-Jun-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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