Insider Trading activities of Silicon Laboratories Inc insiders. , Part 3

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Silicon Laboratories Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Silicon Laboratories Inc since year 2005. (See page 1 of this report.) Table 2 shows the detailed insider transactions of Silicon Laboratories Inc since 2005. The reporting company's ticker symbol is SLAB. The reporting company's CIK number is 1038074.
The total value of stock buying since 2005 is $408,214.
The total value of stock sales since 2005 is $269,195,073.
The total value of stock option exercises since 2005 is $66,799,381.



Table 2. Detailed insider stock purchases, sales, and option exercises of Silicon Laboratories Inc insiders (SLAB) , Part 3
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2012-02-15 Ivester Jonathan D (Sr VP or Worldwide Operations) Sale 5,000 45.13 225,650
2012-02-15 Ivester Jonathan D (Sr VP or Worldwide Operations) Option Ex 5,000 33.17 165,850
2012-02-01 Walsh Paul V Jr (Vice President & CFO) Sale 620 44.17 27,385
2012-01-25 Sayiner Necip (President & CEO) Sale 42,408 48.14 2,041,521
2012-01-25 Sayiner Necip (President & CEO) Option Ex 33,708 32.27 1,087,757
2012-01-24 Sayiner Necip (President & CEO) Sale 34,100 46.48 1,584,968
2012-01-24 Sayiner Necip (President & CEO) Option Ex 27,500 32.27 887,425
2012-01-18 Sayiner Necip (President & CEO) Sale 32,935 44.18 1,454,969
2012-01-18 Sayiner Necip (President & CEO) Option Ex 25,000 32.27 806,750
2012-01-10 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 5,000 44.22 221,100
2012-01-10 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 5,000 32.64 163,200
2012-01-03 Walsh Paul V Jr (Vice President & CFO) Sale 750 44.22 33,165
2011-12-20 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 7,400 42.63 315,462
2011-12-20 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 4,700 32.03 150,564
2011-12-13 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 300 42.63 12,789
2011-12-13 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 300 31.96 9,588
2011-12-01 Walsh Paul V Jr (Vice President & CFO) Sale 750 42.99 32,242
2011-11-30 Onken Kristen M (Director) Sale 1,000 42.79 42,789
2011-11-28 Enloe Robert Ted Iii (Director) Sale 2,922 41.75 121,987
2011-11-18 Cash Harvey B (Director) Sale 500 43.14 21,572
2011-11-15 Bock William G (Sr VP of Administration) Sale 9,533 42.20 402,292
2011-11-14 Enloe Robert Ted Iii (Director) Sale 5,388 42.92 231,252
2011-11-11 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 3,905 42.77 167,016
2011-11-11 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 3,905 31.96 124,803
2011-11-10 Walker Laurence G (Director) Sale 3,000 42.15 126,450
2011-11-10 Walker Laurence G (Director) Option Ex 3,000 26.19 78,570
2011-11-08 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 1,095 42.77 46,833
2011-11-08 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 1,095 31.96 34,996
2011-11-01 Walsh Paul V Jr (Vice President & CFO) Sale 750 41.48 31,109
2011-10-26 Bock William G (Senior VP of Administration) Sale 7,963 40.00 318,520
2011-10-12 Walsh Paul V Jr (Vice President and CFO) Sale 750 35.00 26,250
2011-10-11 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 3,000 34.80 104,399
2011-09-13 Walsh Paul V Jr (Vice President & CFO) Sale 750 35.00 26,250
2011-09-13 Ivester Jonathan D (Sr. VP of Worldwide Operations) Sale 4,950 34.46 170,577
2011-08-09 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 3,000 31.70 95,100
2011-07-22 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 5,000 41.87 209,350
2011-07-01 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 41.10 82,202
2011-07-01 Walsh Paul V Jr (VP of Finance & CFO) Sale 750 41.32 30,990
2011-06-20 Wood William P (Director) Option Ex 5,000 22.63 113,150
2011-06-14 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 5,950 39.44 234,668
2011-06-01 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 42.80 85,606
2011-06-01 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 42.74 32,055
2011-05-31 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 42.93 32,197
2011-05-26 Sooch Navdeep S (Director) Option Ex 30,000 24.30 729,000
2011-05-25 Sooch Navdeep S (Director) Option Ex 20,000 24.30 486,000
2011-05-19 Cash Harvey B (Director) Sale 26,200 44.76 1,172,738
2011-05-19 Bock William G (Senior VP of Finance & CFO) Sale 7,293 45.19 329,570
2011-05-18 Cash Harvey B (Director) Sale 75,000 45.02 3,376,725
2011-05-17 Cash Harvey B (Director) Sale 15,000 43.51 652,605
2011-05-17 Sooch Navdeep S (Director) Option Ex 62,334 15.10 941,243
2011-05-02 Hoff Kurt W (VP of Worldwide Sales) Sale 1,675 43.01 72,035
2011-04-27 Sayiner Necip (President & CEO) Sale 4,300 45.75 196,725
2011-04-26 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 5,000 43.39 216,950
2011-04-26 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 3,038 32.11 97,550
2011-04-01 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 43.16 86,310
2011-04-01 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 43.32 32,490
2011-03-08 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 5,000 44.30 221,500
2011-03-08 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 5,000 32.11 160,550
2011-03-01 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 45.22 90,436
2011-03-01 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 45.48 34,110
2011-02-17 Sayiner Necip (President & CEO) Sale 2,150 46.74 100,495
2011-02-14 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 8,700 45.91 399,416
2011-02-14 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 6,000 32.11 192,660
2011-02-11 Cash Harvey B (Director) Option Ex 10,000 23.16 231,650
2011-02-07 Wood William P (Director) Option Ex 5,000 23.70 118,500
2011-02-01 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 44.75 33,562
2011-01-20 Sayiner Necip (President & CEO) Sale 2,000 47.53 95,056
2011-01-18 Walsh Paul V Jr (VP of Finance & CAO) Sale 104 49.64 5,162
2011-01-18 Walsh Paul V Jr (VP of Finance & CAO) Option Ex 104 31.96 3,323
2011-01-11 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 6,000 49.38 296,280
2011-01-11 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 6,000 32.03 192,209
2011-01-06 Walsh Paul V Jr (VP of Finance & CAO) Sale 835 48.60 40,581
2011-01-06 Walsh Paul V Jr (VP of Finance & CAO) Option Ex 835 31.96 26,686
2011-01-05 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 6,000 46.90 281,400
2011-01-05 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 6,000 31.96 191,760
2011-01-03 Hoff Kurt W (VP of Worldwide Sales) Sale 545 46.29 25,228
2011-01-03 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 46.29 34,717
2010-12-15 Sayiner Necip (President & CEO) Sale 2,250 46.39 104,373
2010-12-01 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 42.89 32,167
2010-11-19 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 8,600 42.07 361,802
2010-11-17 Sayiner Necip (President & CEO) Sale 2,250 40.94 92,106
2010-11-15 Bock William G (Senior VP of Finance & CFO) Sale 9,533 41.43 394,952
2010-11-04 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 3,600 41.85 150,660
2010-11-01 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 39.91 29,932
2010-10-22 Sayiner Necip (President & CEO) Sale 2,250 38.29 86,152
2010-10-15 Sayiner Necip (President & CEO) Sale 2,250 38.29 86,152
2010-10-12 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 4,300 36.84 158,412
2010-09-14 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 4,300 35.68 153,424
2010-09-14 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 4,300 28.13 120,959
2010-09-07 Hoff Kurt W (VP of Worldwide Sales) Sale 1,830 39.42 72,144
2010-09-01 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 38.63 28,972
2010-08-18 Sayiner Necip (President & CEO) Sale 2,250 39.90 89,784
2010-08-18 Bock William G (Senior VP of Finance & CFO) Sale 3,982 40.00 159,280
2010-08-12 Cash Harvey B (Director) Sale 10,000 39.21 392,070
2010-08-04 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 40.80 81,602
2010-08-02 Walsh Paul V Jr (VP of Finance & CAO) Sale 750 40.51 30,382
2010-07-21 Sayiner Necip (President & CEO) Sale 2,250 42.45 95,523
2010-07-13 Ivester Jonathan D (Sr VP of Worldwide Operations) Sale 5,000 43.25 216,250
2010-07-13 Ivester Jonathan D (Sr VP of Worldwide Operations) Option Ex 375 24.30 9,112
2010-07-09 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 42.35 84,696
2010-06-22 Bock William G (CFO) Sale 3,428 44.81 153,608
2010-06-16 Sayiner Necip (President and CEO) Sale 2,250 45.78 103,005
2010-06-09 Ivester Jonathan D (VP of Worldwide Operations) Sale 5,000 43.84 219,200
2010-06-01 Walsh Paul V Jr (VP Principal Accounting Office) Sale 750 45.36 34,020
2010-05-19 Sayiner Necip (President & CEO) Sale 2,250 45.23 101,776
2010-05-11 Ivester Jonathan D (VP of Worldwide Operations) Sale 9,600 47.31 454,176
2010-05-10 Walker Laurence G (Director) Sale 3,592 46.44 166,808
2010-05-03 Walsh Paul V Jr (VP Principal Accounting Office) Sale 3,619 48.48 175,431
2010-05-03 Walsh Paul V Jr (VP Principal Accounting Office) Option Ex 2,869 28.52 81,809
2010-04-21 Sayiner Necip (President & CEO) Sale 2,250 50.54 113,719
2010-04-15 Sayiner Necip (President & CEO) Sale 55,000 52.52 2,888,600
2010-04-15 Sayiner Necip (President & CEO) Option Ex 45,000 32.27 1,452,150
2010-04-14 Ivester Jonathan D (VP of Worldwide Operations) Sale 12,500 50.77 634,625
2010-04-14 Ivester Jonathan D (VP of Worldwide Operations) Option Ex 10,000 23.46 234,650
2010-04-07 Sayiner Necip (President & CEO) Sale 48,000 50.33 2,415,840
2010-04-07 Sayiner Necip (President & CEO) Option Ex 40,000 32.27 1,290,800
2010-04-06 Wood William P (Director) Sale 23,500 50.03 1,175,611
2010-04-05 Hoff Kurt W (VP of Worldwide Sales) Sale 2,875 48.00 138,011
2010-04-05 Walsh Paul V Jr (VP Principal Accounting Office) Sale 3,630 50.00 181,500
2010-04-05 Walsh Paul V Jr (VP Principal Accounting Office) Option Ex 3,630 25.07 91,004
2010-04-05 Wood William P (Director) Sale 26,500 50.00 1,325,000
2010-04-05 Sooch Navdeep S (Director) Sale 62,589 49.40 3,091,771
2010-04-05 Sooch Navdeep S (Director) Option Ex 12,589 15.10 190,093
2010-04-01 Walsh Paul V Jr (VP Principal Accounting Office) Sale 750 47.94 35,955
2010-03-25 Sooch Navdeep S (Director) Sale 2,824 49.03 138,449
2010-03-25 Sooch Navdeep S (Director) Option Ex 2,824 15.10 42,642
2010-03-23 Bock William G (CFO) Sale 35,000 49.00 1,715,105
2010-03-23 Bock William G (CFO) Option Ex 35,000 32.98 1,154,300
2010-03-23 Sooch Navdeep S (Director) Sale 34,587 49.02 1,695,385
2010-03-23 Sooch Navdeep S (Director) Option Ex 34,587 15.10 522,263
2010-03-17 Sayiner Necip (President & CEO) Sale 2,250 47.71 107,349
2010-03-17 Ivester Jonathan D (VP of Worldwide Operations) Sale 8,500 47.33 402,305
2010-03-17 Ivester Jonathan D (VP of Worldwide Operations) Option Ex 6,000 22.63 135,780
2010-03-04 Hoff Kurt W (VP of Worldwide Sales) Sale 700 46.49 32,543
2010-03-01 Walsh Paul V Jr (VP Principal Accounting Office) Sale 750 45.57 34,177
2010-02-25 Ivester Jonathan D (VP of Worldwide Operations) Option Ex 2,058 24.30 50,009
2010-02-17 Sayiner Necip (President & CEO) Sale 2,250 45.74 102,926
2010-02-09 Ivester Jonathan D (VP of Worldwide Operations) Sale 7,000 44.61 312,270
2010-02-09 Ivester Jonathan D (VP of Worldwide Operations) Option Ex 4,500 22.63 101,835
2010-02-04 Hoff Kurt W (VP of Worldwide Sales) Sale 1,050 44.50 46,725
2010-02-01 Walsh Paul V Jr (VP Principal Accounting Office) Sale 750 42.38 31,785
2010-01-20 Sayiner Necip (President & CEO) Sale 2,250 44.76 100,705
2010-01-15 Wood William P (Director) Sale 5,000 45.57 227,850
2010-01-15 Wood William P (Director) Option Ex 5,000 31.00 155,000
2010-01-04 Hoff Kurt W (VP of Worldwide Sales) Sale 2,156 47.44 102,278
2010-01-04 Walsh Paul V Jr (VP Principal Accounting Office) Sale 750 47.45 35,587
2010-01-04 Sayiner Necip (President & CEO) Sale 97,000 48.05 4,660,947
2010-01-04 Sayiner Necip (President & CEO) Option Ex 85,000 32.27 2,742,950
2009-12-15 Sayiner Necip (President & CEO) Sale 2,250 45.27 101,859
2009-12-15 Wood William P (Director) Sale 5,000 45.25 226,250

Insider trading activities including stock purchases, stock sales, and option exercises of SLAB listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Silicon Laboratories Inc (symbol SLAB, CIK number 1038074) see the Securities and Exchange Commission (SEC) website.