Porterfield Robert

CIK 00013077951 companyAUSTIN, TX

SEC Profile

Transactions

Companies

Filings

CIK

0001307795

Recent Transactions

20 trades

Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-04-01$22.99/sh+414→ 24,483 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-04-01$22.99/sh+430→ 24,069 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-04-01$22.99/sh+430→ 24,069 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-04-01$22.99/sh+414→ 24,483 total
Tax Payment
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-18$29.55/sh−1,435→ 14,389 total
Tax Payment
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-18$29.55/sh−1,435→ 14,389 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Employee Stock Option (right to buy)
2005-02-16−4,725→ 0 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$4.30/sh+2,895→ 17,284 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$4.30/sh+4,725→ 23,639 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$4.30/sh+2,895→ 17,284 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Employee Stock Option (right to buy)
2005-02-16−1,630→ 3,432 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$5.93/sh+1,630→ 18,914 total
Tax Payment
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$29.55/sh+1,435→ 14,389 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$4.30/sh+4,725→ 23,639 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Employee Stock Option (right to buy)
2005-02-16−2,895→ 0 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Employee Stock Option (right to buy)
2005-02-16−4,725→ 0 total
Tax Payment
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$29.55/sh+1,435→ 14,389 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Employee Stock Option (right to buy)
2005-02-16−2,895→ 0 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Common Stock
2005-02-16$5.93/sh+1,630→ 18,914 total
Exercise/Conversion
NATIONAL INSTRUMENTS CORP
Employee Stock Option (right to buy)
2005-02-16−1,630→ 3,432 total

Companies

NATIONAL INSTRUMENTS CORP
Vice President

Recent Filings

Address

11500 N. MOPAC EXPWY

AUSTIN, TX, 78759

View on SEC.gov