Porterfield Robert

CIK 00013077951 companyAUSTIN, TX

SEC Profile

Transactions

Companies

Filings

CIK

0001307795

Recent Transactions

50 trades

Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−300→ 1,568 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,896 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−400→ 1,623 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−1,000→ 4,058 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,256 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−300→ 1,568 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−400→ 3,600 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,256 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 2,614 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−400→ 3,600 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2010-05-01+2,900→ 50,287 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,896 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 2,614 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,896 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−400→ 1,623 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,256 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−1,000→ 4,058 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2010-05-01+2,100→ 47,387 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,256 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−500→ 3,896 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−400→ 3,600 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2010-05-01+2,900→ 50,287 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2010-05-01+2,100→ 47,387 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Restricted Stock Units
2010-05-01−400→ 3,600 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2008-11-03$21.59/sh+171→ 38,400 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2008-11-03$21.59/sh+171→ 38,400 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.56/sh−300→ 29,859 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.80/sh−300→ 25,873 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.58/sh−300→ 29,559 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.72/sh−200→ 27,759 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.64/sh−100→ 29,059 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.85/sh−100→ 24,473 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.81/sh−700→ 25,173 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.79/sh−100→ 26,173 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.74/sh−200→ 27,059 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.73/sh−500→ 27,259 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$28.06/sh−300→ 22,379 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.84/sh−300→ 24,573 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.63/sh−300→ 29,159 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$28.08/sh−100→ 22,279 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.62/sh−100→ 29,459 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.94/sh−100→ 22,979 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.82/sh−100→ 25,073 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Employee Stock Option (right to buy)
2007-02-02$9.63/sh−7,880→ 3,933 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.93/sh−194→ 23,079 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.67/sh−200→ 28,859 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.87/sh−900→ 23,573 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$2783.00/sh−200→ 24,873 total
Sale
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$27.90/sh−200→ 23,273 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2007-02-02$9.63/sh+7,880→ 30,159 total

Companies

NATIONAL INSTRUMENTS CORP
Vice President

Recent Filings

4
Porterfield Robert
May 3, 2010

Address

11500 N. MOPAC EXPWY

AUSTIN, TX, 78759

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