Insider Trades - DAVERN ALEXANDER M

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DAVERN ALEXANDER M: Declared Holdings
Company/Relationship	Reported	Shares	Ownership
National Instruments Corporatio Officer NasdaqGS:NATI (historical quotes, profile, SEC, other insiders)	25-Nov-09	8,505	Direct

Insider & restricted shareholder transactions reported over the last two years
Date Shares Stock Transaction
25-Nov-09 1,908 NATI Sale at $28.83 - $28.84 per share.
(Proceeds of about $55,000)
20-Nov-09 2,044 NATI Sale at $28.25 per share.
(Proceeds of $57,743)
2-Nov-09 341 NATI Option Exercise at $21.43 per share.
(Cost of $7,307)
14-Aug-09 4,000 NATI Sale at $25 per share.
(Proceeds of $100,000)
3-Aug-09 390 NATI Option Exercise at $18.73 per share.
(Cost of $7,304)
1-May-09 6,044 NATI Option Exercise
16-Mar-09 8,912 NATI Option Exercise at $12.22 per share.
(Cost of $108,904)
6-Feb-09 3,116 NATI Sale at $21 per share.
(Proceeds of $65,436)
4-Feb-09 9,866 NATI Option Exercise at $12.22 per share.
(Cost of $120,562)
4-Feb-09 9,866 NATI Sale at $20.78 per share.
(Proceeds of $205,015)
8-Aug-08 10,000 NATI Option Exercise at $12.22 per share.
(Cost of $122,200)
8-Aug-08 10,000 NATI Sale at $35 per share.
(Proceeds of $350,000)
1-Aug-08 177 NATI Option Exercise at $25.01 per share.
(Cost of $4,426)
20-May-08 2,000 NATI Sale at $31.40 per share.
(Proceeds of $62,800)
6-May-08 1,051 NATI Sale at $29.50 per share.
(Proceeds of $31,004)
1-May-08 5,450 NATI Option Exercise at $22.83 per share.
(Cost of $124,423)

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Insider & restricted shareholder transactions reported over the last two years
Date	Shares	Stock	Transaction
25-Nov-09	1,908	NATI	Sale at $28.83 - $28.84 per share. (Proceeds of about $55,000)
20-Nov-09	2,044	NATI	Sale at $28.25 per share. (Proceeds of $57,743)
2-Nov-09	341	NATI	Option Exercise at $21.43 per share. (Cost of $7,307)
14-Aug-09	4,000	NATI	Sale at $25 per share. (Proceeds of $100,000)
3-Aug-09	390	NATI	Option Exercise at $18.73 per share. (Cost of $7,304)
1-May-09	6,044	NATI	Option Exercise
16-Mar-09	8,912	NATI	Option Exercise at $12.22 per share. (Cost of $108,904)
6-Feb-09	3,116	NATI	Sale at $21 per share. (Proceeds of $65,436)
4-Feb-09	9,866	NATI	Option Exercise at $12.22 per share. (Cost of $120,562)
4-Feb-09	9,866	NATI	Sale at $20.78 per share. (Proceeds of $205,015)
8-Aug-08	10,000	NATI	Option Exercise at $12.22 per share. (Cost of $122,200)
8-Aug-08	10,000	NATI	Sale at $35 per share. (Proceeds of $350,000)
1-Aug-08	177	NATI	Option Exercise at $25.01 per share. (Cost of $4,426)
20-May-08	2,000	NATI	Sale at $31.40 per share. (Proceeds of $62,800)
6-May-08	1,051	NATI	Sale at $29.50 per share. (Proceeds of $31,004)
1-May-08	5,450	NATI	Option Exercise at $22.83 per share. (Cost of $124,423)