Insider Trading activities of National Instruments Corp insiders. , Part 4

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of National Instruments Corp since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of National Instruments Corp since year 2005. (See page 1 of this report.) Table 2 shows the detailed insider transactions of National Instruments Corp since 2005. The reporting company's ticker symbol is NATI. The reporting company's CIK number is 935494.
The total value of stock buying since 2005 is $11,399,057.
The total value of stock sales since 2005 is $281,618,358.
The total value of stock option exercises since 2005 is $28,956,658.



Table 2. Detailed insider stock purchases, sales, and option exercises of National Instruments Corp insiders (NATI) , Part 4
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2011-02-28 Le Duy Loan T Sale 5,000 31.28 156,395
2011-02-28 Kodosky Jeffrey L Sale 4,000 30.88 123,528
2011-02-22 Kodosky Jeffrey L Sale 12,000 46.39 556,668
2011-02-16 Hugley David (VP & General Counsel) Sale 5,517 48.12 265,478
2011-02-16 Hugley David (VP & General Counsel) Option Ex 5,517 20.12 111,002
2011-02-15 Graff John (Vice President) Sale 2,942 47.99 141,186
2011-02-14 Razdan Ash Sale 3,974 47.45 188,566
2011-02-14 Davern Alexander M (COO, CFO & Executive VP) Sale 3,427 47.45 162,611
2011-02-14 Davern Alexander M (COO, CFO & Executive VP) Option Ex 3,427 20.12 68,951
2011-02-14 Kodosky Jeffrey L Sale 12,000 47.41 568,932
2011-02-07 Almgren Ray (Vice President) Sale 21,749 47.09 1,024,138
2011-02-07 Almgren Ray (Vice President) Option Ex 7,347 21.04 154,595
2011-02-07 Kodosky Jeffrey L Sale 12,000 47.05 564,576
2011-02-02 Razdan Ash Sale 3,857 45.45 175,300
2011-02-01 Razdan Ash Option Ex 213 29.55 6,295
2011-02-01 Porterfield Robert (Vice President) Option Ex 234 29.55 6,915
2011-02-01 Zogas Peter (Senior Vice President) Option Ex 854 29.55 25,238
2011-02-01 Almgren Ray (Vice President) Option Ex 224 29.55 6,620
2011-02-01 Graff John (Vice President) Option Ex 256 29.55 7,566
2011-02-01 Davern Alexander M (COO, CFO & Executive VP) Option Ex 317 29.55 9,368
2011-02-01 Hugley David (VP & General Counsel) Option Ex 291 29.55 8,600
2011-02-01 Finger Mark (Vice President) Option Ex 203 29.55 5,999
2011-02-01 Kodosky Jeffrey L Sale 4,000 43.39 173,560
2011-01-31 Kodosky Jeffrey L Sale 8,000 42.51 340,064
2011-01-27 Zogas Peter (Senior Vice President) Sale 15,000 43.79 656,790
2011-01-27 Zogas Peter (Senior Vice President) Option Ex 15,000 21.04 315,630
2011-01-27 Davern Alexander M (COO, CFO & Executive VP) Sale 9,691 43.80 424,436
2011-01-27 Davern Alexander M (COO, CFO & Executive VP) Option Ex 9,691 21.04 203,918
2011-01-27 Le Duy Loan T Option Ex 7,500 24.17 181,252
2011-01-27 Hugley David (VP & General Counsel) Sale 15,000 43.84 657,600
2011-01-27 Hugley David (VP & General Counsel) Option Ex 15,000 21.04 315,630
2011-01-27 Roesslein Charles J Option Ex 7,500 24.01 180,052
2011-01-27 Carlton Donald M Sale 7,500 44.00 330,000
2011-01-27 Carlton Donald M Option Ex 7,500 25.53 191,452
2011-01-26 Razdan Ash Sale 7,747 43.12 334,027
2011-01-26 Razdan Ash Option Ex 2,368 29.85 70,684
2011-01-25 Kodosky Jeffrey L Sale 2,282 39.20 89,461
2011-01-24 Kodosky Jeffrey L Sale 9,718 39.44 383,258
2011-01-18 Kodosky Jeffrey L Sale 12,000 39.32 471,888
2011-01-11 Razdan Ash Sale 2,000 39.45 78,900
2011-01-10 Kodosky Jeffrey L Sale 12,000 38.64 463,728
2011-01-04 Kodosky Jeffrey L Sale 1,600 37.80 60,488
2011-01-03 Kodosky Jeffrey L Sale 10,400 38.08 395,990
2010-12-30 Kodosky Jeffrey L Sale 240 37.95 9,108
2010-12-28 Kodosky Jeffrey L Sale 4,000 37.78 151,120
2010-12-27 Truchard James J (President) Sale 10,500 37.79 396,836
2010-12-27 Kodosky Jeffrey L Sale 4,000 37.54 150,164
2010-12-21 Truchard James J (President) Sale 6,500 37.69 244,998
2010-12-20 Truchard James J (President) Sale 4,000 37.37 149,460
2010-12-20 Kodosky Jeffrey L Sale 8,000 37.47 299,736
2010-12-15 Razdan Ash Sale 1,514 37.45 56,699
2010-12-15 Kodosky Jeffrey L Sale 4,000 38.10 152,388
2010-12-14 Truchard James J (President) Sale 3,000 36.41 109,245
2010-12-13 Truchard James J (President) Sale 7,500 36.21 271,590
2010-12-13 Kodosky Jeffrey L Sale 8,000 36.19 289,512
2010-12-06 Truchard James J (President) Sale 10,500 35.83 376,246
2010-12-06 Kodosky Jeffrey L Sale 12,000 35.73 428,712
2010-11-29 Truchard James J (President) Sale 10,500 34.12 358,228
2010-11-29 Kodosky Jeffrey L Sale 12,000 34.08 408,996
2010-11-22 Truchard James J (President) Sale 10,500 34.43 361,525
2010-11-22 Kodosky Jeffrey L Sale 12,000 34.26 411,120
2010-11-16 Kodosky Jeffrey L Sale 8,000 34.14 273,128
2010-11-15 Truchard James J (President) Sale 10,500 34.99 367,416
2010-11-15 Kodosky Jeffrey L Sale 12,000 34.85 418,151
2010-11-09 Kodosky Jeffrey L Sale 8,000 35.34 282,712
2010-11-08 Truchard James J (President) Sale 10,500 35.34 371,028
2010-11-08 Kodosky Jeffrey L Sale 12,000 35.32 423,876
2010-11-04 Graff John (Vice President) Sale 15,000 35.09 526,350
2010-11-04 Graff John (Vice President) Option Ex 15,000 21.04 315,630
2010-11-04 Finger Mark (Vice President) Sale 6,716 35.00 235,073
2010-11-04 Finger Mark (Vice President) Option Ex 6,716 21.04 141,318
2010-11-02 Porterfield Robert (Vice President) Sale 15,000 34.75 521,250
2010-11-02 Porterfield Robert (Vice President) Option Ex 12,000 21.04 252,504
2010-11-02 Truchard James J (President) Sale 10,500 34.78 365,200
2010-11-02 Kodosky Jeffrey L Sale 8,000 34.70 277,600
2010-11-01 Razdan Ash Option Ex 100 27.11 2,711
2010-11-01 Porterfield Robert (Vice President) Option Ex 61 27.11 1,654
2010-11-01 Almgren Ray (Vice President) Option Ex 235 27.11 6,372
2010-11-01 Graff John (Vice President) Option Ex 69 27.11 1,870
2010-11-01 Davern Alexander M (COO & Executive Vice President) Option Ex 134 27.11 3,633
2010-11-01 Hugley David (VP & General Counsel) Option Ex 63 27.11 1,708
2010-11-01 Finger Mark (Vice President) Option Ex 151 27.11 4,094
2010-11-01 Kodosky Jeffrey L Sale 12,000 34.54 414,468
2010-10-26 Kodosky Jeffrey L Sale 8,000 34.69 277,504
2010-10-25 Truchard James J (President) Sale 10,500 34.43 361,473
2010-10-25 Kodosky Jeffrey L Sale 12,000 34.44 413,268
2010-10-21 Kodosky Jeffrey L Sale 6,000 33.77 202,602
2010-10-20 Kodosky Jeffrey L Sale 2,000 32.95 65,900
2010-10-19 Kodosky Jeffrey L Sale 4,000 32.64 130,576
2010-10-18 Truchard James J (President) Sale 10,500 32.55 341,827
2010-10-18 Kodosky Jeffrey L Sale 8,000 32.66 261,288
2010-10-13 Kodosky Jeffrey L Sale 2,884 32.62 94,081
2010-10-12 Truchard James J (President) Sale 8,264 32.25 266,522
2010-10-12 Kodosky Jeffrey L Sale 9,116 32.43 295,659
2010-10-11 Truchard James J (President) Sale 2,236 32.57 72,817
2010-10-05 Kodosky Jeffrey L Sale 8,000 32.46 259,704
2010-10-04 Truchard James J (President) Sale 10,500 31.93 335,265
2010-10-04 Kodosky Jeffrey L Sale 4,000 31.88 127,528
2010-09-29 Kodosky Jeffrey L Sale 8,000 33.05 264,384
2010-09-28 Kodosky Jeffrey L Sale 2,880 32.18 92,681
2010-09-27 Truchard James J (President) Sale 10,500 31.99 335,874
2010-09-27 Kodosky Jeffrey L Sale 9,120 32.13 293,025
2010-09-24 Truchard James J (President) Sale 9,720 31.60 307,142
2010-09-22 Truchard James J (President) Sale 10,000 31.62 316,170
2010-09-21 Truchard James J (President) Sale 12,500 31.75 396,825
2010-09-20 Truchard James J (President) Sale 12,770 31.69 404,668
2010-09-20 Kodosky Jeffrey L Sale 12,000 31.71 380,496
2010-09-17 Truchard James J (President) Sale 18,010 31.40 565,586
2010-09-13 Kodosky Jeffrey L Sale 12,000 30.68 368,160
2010-09-08 Kodosky Jeffrey L Sale 4,000 30.32 121,300
2010-09-07 Kodosky Jeffrey L Sale 8,000 30.32 242,544
2010-08-31 Zogas Peter (Senior Vice President) Sale 1,800 28.50 51,305
2010-08-31 Kodosky Jeffrey L Sale 240 28.95 6,948
2010-08-30 Kodosky Jeffrey L Sale 11,760 28.94 340,334
2010-08-26 Zogas Peter (Senior Vice President) Sale 1,412 28.83 40,707
2010-08-23 Kodosky Jeffrey L Sale 12,000 29.24 350,928
2010-08-17 Finger Mark (Vice President) Sale 2,942 30.31 89,174
2010-08-16 Kodosky Jeffrey L Sale 12,000 29.34 352,044
2010-08-11 Davern Alexander M (CFO & Senior Vice President) Sale 4,000 30.70 122,804
2010-08-10 Kodosky Jeffrey L Sale 8,000 31.72 253,768
2010-08-09 Truchard James J (President) Sale 10,500 32.29 339,055
2010-08-09 Kodosky Jeffrey L Sale 4,000 32.32 129,264
2010-08-05 Carlton Donald M Sale 7,500 32.05 240,345
2010-08-05 Carlton Donald M Option Ex 7,500 24.01 180,052
2010-08-02 Razdan Ash Option Ex 225 27.11 6,100
2010-08-02 Porterfield Robert (Vice President) Option Ex 238 27.11 6,453
2010-08-02 Zogas Peter (Senior Vice President) Option Ex 311 27.11 8,432
2010-08-02 Almgren Ray (Vice President) Option Ex 230 27.11 6,236
2010-08-02 Graff John (Vice President) Option Ex 240 27.11 6,507
2010-08-02 Davern Alexander M (COO & Executive Vice President) Option Ex 300 27.11 8,134
2010-08-02 Hugley David (VP & General Counsel) Option Ex 346 27.11 9,381
2010-08-02 Finger Mark (Vice President) Option Ex 212 27.11 5,748
2010-08-02 Truchard James J (President) Sale 10,500 32.10 337,018
2010-08-02 Kodosky Jeffrey L Sale 12,000 32.00 383,964
2010-08-01 Graff John (Vice President) Option Ex 287 21.96 6,303
2010-07-28 Davern Alexander M (CFO & Senior Vice President) Option Ex 1,505 21.04 31,668
2010-07-27 Kodosky Jeffrey L Sale 8,000 32.98 263,824
2010-07-26 Truchard James J (President) Sale 10,500 32.18 337,879
2010-07-26 Kodosky Jeffrey L Sale 12,000 32.25 386,964
2010-07-23 Truchard James J (President) Sale 55,670 31.84 1,772,588
2010-07-22 Truchard James J (President) Sale 24,830 31.68 786,639
2010-07-19 Kodosky Jeffrey L Sale 12,000 30.52 366,204
2010-07-12 Kodosky Jeffrey L Sale 12,000 30.67 368,088
2010-07-06 Kodosky Jeffrey L Sale 12,000 30.80 369,564
2010-06-28 Truchard James J (President) Sale 35,000 32.87 1,150,450
2010-06-28 Kodosky Jeffrey L Sale 20,000 32.83 656,640
2010-06-21 Kodosky Jeffrey L Sale 20,000 32.69 653,760
2010-06-14 Kodosky Jeffrey L Sale 12,000 31.59 379,092
2010-06-07 Kodosky Jeffrey L Sale 12,000 30.34 364,116
2010-06-01 Kodosky Jeffrey L Sale 12,000 31.18 374,208

Insider trading activities including stock purchases, stock sales, and option exercises of NATI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of National Instruments Corp (symbol NATI, CIK number 935494) see the Securities and Exchange Commission (SEC) website.