Porterfield Robert 4
4 · NATIONAL INSTRUMENTS CORP /DE/ · Filed Nov 4, 2010
Insider Transaction Report
Form 4
Porterfield Robert
Vice President
Transactions
- Exercise/Conversion
Common Stock
2010-11-01$27.11/sh+61$1,654→ 50,851 total(indirect: By Spouse) - Sale
Common Stock
2010-11-02$34.75/sh−6,000$208,500→ 50,851 total(indirect: By Spouse) - Exercise/Conversion
Employee Stock Option (right to buy)
2010-11-02−6,000→ 0 total(indirect: By Spouse)Exercise: $21.04Exp: 2011-03-21→ Common Stock (6,000 underlying) - Exercise/Conversion
Common Stock
2010-08-02$27.11/sh+238$6,453→ 50,790 total(indirect: By Spouse) - Sale
Common Stock
2010-11-02$34.75/sh−6,000$208,500→ 50,851 total - Exercise/Conversion
Employee Stock Option (right to buy)
2010-11-02−6,000→ 0 totalExercise: $21.04Exp: 2011-03-21→ Common Stock (6,000 underlying) - Exercise/Conversion
Common Stock
2010-05-03$24.98/sh+265$6,620→ 50,552 total(indirect: By Spouse) - Exercise/Conversion
Common Stock
2010-11-02$21.04/sh+6,000$126,250→ 56,851 total(indirect: By Spouse) - Exercise/Conversion
Common Stock
2010-11-02$21.04/sh+6,000$126,250→ 56,851 total - Sale
Common Stock
2010-11-02$34.75/sh−3,000$104,250→ 47,851 total
Footnotes (2)
- [F1]Acquisition of stock under Issuer's employee stock purchase plan.
- [F2]Options vested and became exercisable based on time and performance milestones set by the Issuer.