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Insider Trading: Silicon Laboratories Inc

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Silicon Laboratories Inc in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Silicon Laboratories Inc since year 2005. 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 $0. The total value of stock sales is $119,705,247. The total value of stock exercises is $8,953,153.


1 year stock price chart,   1 day stock price chart
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Figure 1. Monthly insider transaction values at Silicon Laboratories Inc (SLAB) in the past 24 months. The trade values of insider stock buys, sales, and option exercises are in logarithmic scale as shown on the right axis labels. The detailed monthly and daily insider transactions are listed in the 2 tables below.

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • $8,537k

    $853k

    $85k

    $8k

  • Buy
  • Sale
  • Option Exercise

Figure 2. Average prices of insider buys, sales, and option exercises at Silicon Laboratories Inc (SLAB) in the past 24 months. See table 2 for insider transaction details.

  • 12

  • 01 2007

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • 12

  • 01 2008

  • 02

  • 03

  • 04

  • 05

  • 06

  • 07

  • 08

  • 09

  • 10

  • 11

  • $43.55

    $32.66

    $21.78

    $10.89



Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Silicon Laboratories Inc (SLAB).
Trading Period
year-month  
Insider Buying     
Shares               Value ($)
Insider Sales     
Shares               Value ($)
Option Exercises     
Shares               Value ($)
2008-11 0 0 2,000 46,825 0 0
2008-10 0 0 2,600 76,992 0 0
2008-09 0 0 10,850 348,052 1,500 2,625
2008-08 0 0 10,850 371,670 1,500 2,625
2008-07 0 0 8,850 301,584 1,500 2,625
2008-06 0 0 11,230 398,044 1,500 2,625
2008-05 0 0 82,816 2,844,646 1,500 2,625
2008-04 0 0 8,918 285,761 1,550 387
2008-03 0 0 8,250 236,628 1,500 375
2008-02 0 0 8,250 265,228 1,500 375
2008-01 0 0 8,250 252,996 1,500 375
2007-12 0 0 9,250 355,249 1,400 350
2007-11 0 0 19,680 758,769 6,440 65,816
2007-10 0 0 182,088 7,942,457 110,451 3,412,411
2007-09 0 0 120,747 4,824,313 41,875 1,211,432
2007-08 0 0 29,313 1,031,125 17,013 321,895
2007-07 0 0 28,760 994,466 11,910 249,892
2007-06 0 0 18,554 626,110 11,910 225,369
2007-05 0 0 256,983 8,537,887 11,910 212,546
2007-04 0 0 65,500 2,013,883 1,400 350
2007-03 0 0 65,500 1,935,030 1,400 350
2007-02 0 0 86,800 2,791,999 1,400 350
2007-01 0 0 65,500 2,246,886 1,400 350
2006-12 0 0 65,500 2,209,223 900 225
2006-11 0 0 65,500 2,219,370 900 225
2006-10 0 0 64,250 2,099,961 900 225
2006-09 0 0 64,250 2,085,454 900 225
2006-08 0 0 64,250 2,237,854 900 225
2006-07 0 0 64,250 2,053,401 2,500 19,612
2006-06 0 0 39,575 1,467,089 0 0
2006-05 0 0 108,111 4,817,417 12,900 182,205
2006-04 0 0 121,676 6,605,411 12,867 208,316
2006-03 0 0 201,490 9,942,342 17,033 301,065
2006-02 0 0 155,374 7,408,259 8,700 105,376
2006-01 0 0 260,888 11,756,869 114,267 2,386,486
2005-12 0 0 106,845 4,121,086 2,200 33,220
2005-11 0 0 79,787 2,932,431 0 0
2005-10 0 0 132,372 4,015,215 0 0
2005-09 0 0 110,533 3,458,675 0 0
2005-08 0 0 79,447 2,386,834 0 0
2005-07 0 0 39,315 1,055,334 0 0
2005-06 0 0 64,315 1,809,029 0 0
2005-05 0 0 62,600 1,594,220 0 0
2005-04 0 0 82,200 2,425,152 0 0
2005-03 0 0 49,103 1,518,021 0 0

Table 2. Detailed insider stock purchases, sales, and option exercises for Silicon Laboratories Inc (SLAB)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2008-11-11 Ivester Jonathan D (VP of Worldwide Operations) Sale 1,500 22.77 34,155
2008-11-06 Cash Harvey B (Director) Sale 500 25.34 12,670
2008-10-14 Ivester Jonathan D (VP of Worldwide Operations) Sale 600 28.32 16,992
2008-10-03 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 30.00 60,000
2008-09-19 Sayiner Necip (President & CEO) Sale 2,250 32.85 73,912
2008-09-18 Walsh Paul V Jr (VP Principal Accounting Office) Sale 600 31.00 18,600
2008-09-18 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,000 31.45 188,700
2008-09-18 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 1.75 2,625
2008-09-03 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 33.42 66,840
2008-08-20 Walsh Paul V Jr (VP Principal Accounting Office) Sale 600 33.85 20,312
2008-08-12 Sayiner Necip (President & CEO) Sale 2,250 34.53 77,699
2008-08-12 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,000 34.73 208,379
2008-08-12 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 1.75 2,625
2008-08-01 Hoff Kurt W (VP of Worldwide Sales) Sale 2,000 32.64 65,280
2008-07-16 Walsh Paul V Jr (VP Principal Accounting Office) Sale 600 32.40 19,438
2008-07-08 Sayiner Necip (President & CEO) Sale 2,250 34.22 77,006
2008-07-08 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,000 34.19 205,140
2008-07-08 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 1.75 2,625
2008-06-19 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 35.29 229,385
2008-06-19 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 1.75 2,625
2008-06-18 Walsh Paul V Jr (VP Principal Accounting Office) Sale 600 33.99 20,393
2008-06-10 Sayiner Necip (President & CEO) Sale 1,750 34.92 61,111
2008-06-02 Hoff Kurt W (VP of Worldwide Sales) Sale 2,380 36.62 87,155
2008-05-21 Walsh Paul V Jr (VP Principal Accounting Office) Sale 600 37.37 22,424
2008-05-13 Sayiner Necip (President and CEO) Sale 1,750 35.77 62,590
2008-05-13 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 35.87 233,154
2008-05-13 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 1.75 2,625
2008-05-08 Bock William G (CFO) Sale 3,178 35.05 111,388
2008-05-07 Wood William P (Director) Sale 15,275 35.01 534,725
2008-05-06 Wood William P (Director) Sale 9,725 35.00 340,414
2008-05-06 Cash Harvey B (Director) Sale 20,000 33.80 676,000
2008-05-01 Hoff Kurt W (VP of Worldwide Sales) Sale 788 33.65 26,516
2008-05-01 Wood William P (Director) Sale 25,000 33.50 837,435
2008-04-28 Walsh Paul V Jr (VP Principal Accounting Office) Sale 668 35.00 23,380
2008-04-15 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 31.53 204,945
2008-04-15 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,550 .25 387
2008-04-08 Sayiner Necip (President & CEO) Sale 1,750 32.82 57,436
2008-03-11 Sayiner Necip (President & CEO) Sale 1,750 28.80 50,403
2008-03-11 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 28.65 186,225
2008-03-11 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 .25 375
2008-02-12 Sayiner Necip (President & CEO) Sale 1,750 32.52 56,904
2008-02-12 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 32.05 208,324
2008-02-12 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 .25 375
2008-01-15 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 29.95 194,675
2008-01-15 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,500 .25 375
2008-01-08 Sayiner Necip (President & CEO) Sale 1,750 33.33 58,321
2007-12-12 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-12-11 Sayiner Necip (President & CEO) Sale 1,750 38.86 67,999
2007-12-11 Ivester Jonathan D (VP of Worldwide Operations) Sale 7,500 38.30 287,250
2007-11-13 Sayiner Necip (President & CEO) Sale 1,750 38.35 67,104
2007-11-13 Bock William G (CFO) Sale 10,430 38.99 406,665
2007-11-13 Ivester Jonathan D (VP of Worldwide Operations) Sale 7,500 38.00 285,000
2007-11-13 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 6,440 10.22 65,816
2007-10-30 Cash Harvey B (Director) Sale 5,000 43.03 215,126
2007-10-25 Walsh Paul V Jr (VP Principal Accounting Office) Sale 3,428 45.00 154,260
2007-10-25 Walsh Paul V Jr (VP Principal Accounting Office) Option Exercise 2,416 25.07 60,569
2007-10-25 Wood William P (Director) Sale 25,000 45.00 1,125,000
2007-10-25 Sooch Navdeep S (Director) Sale 36,035 45.06 1,623,866
2007-10-09 Sayiner Necip (President & CEO) Sale 1,750 42.82 74,931
2007-10-09 Ivester Jonathan D (VP of Worldwide Operations) Sale 9,000 43.21 388,890
2007-10-09 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 6,160 10.22 62,955
2007-10-02 Gay Gary R (VP of Worldwide Sales) Sale 11,875 43.50 516,562
2007-10-02 Gay Gary R (VP of Worldwide Sales) Option Exercise 11,875 38.50 457,187
2007-10-01 Sayiner Necip (President & CEO) Sale 20,000 43.32 866,400
2007-10-01 Sayiner Necip (President & CEO) Option Exercise 20,000 32.27 645,400
2007-10-01 Bock William G (CFO) Sale 40,000 42.40 1,696,148
2007-10-01 Bock William G (CFO) Option Exercise 40,000 31.06 1,242,400
2007-09-19 Gay Gary R (Senior VP of Worldwide Sales) Sale 4,125 41.81 172,466
2007-09-19 Gay Gary R (Senior VP of Worldwide Sales) Option Exercise 4,125 36.81 151,841
2007-09-18 Bock William G (CFO) Sale 20,000 41.00 820,000
2007-09-18 Bock William G (CFO) Option Exercise 20,000 31.00 620,000
2007-09-14 Walsh Paul V Jr (VP Principal Accounting Office) Sale 1,122 40.08 44,964
2007-09-14 Wood William P (Director) Sale 25,000 40.00 1,000,000
2007-09-14 Sooch Navdeep S (Director) Sale 50,000 40.10 2,004,750
2007-09-11 Sayiner Necip (President & CEO) Sale 1,750 38.53 67,422
2007-09-11 Ivester Jonathan D (VP of Worldwide Operations) Sale 7,500 38.04 285,300
2007-09-11 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 6,500 10.22 66,430
2007-09-10 Gay Gary R (Senior VP of Worldwide Sales) Sale 3,239 38.17 123,632
2007-09-10 Gay Gary R (Senior VP of Worldwide Sales) Option Exercise 3,239 33.17 107,437
2007-09-06 Gay Gary R (Senior VP of Worldwide Sales) Sale 8,011 38.17 305,779
2007-09-06 Gay Gary R (Senior VP of Worldwide Sales) Option Exercise 8,011 33.17 265,724
2007-08-31 Cash Harvey B (Director) Sale 10,000 35.33 353,300
2007-08-22 Cash Harvey B (Director) Sale 1,300 35.00 45,500
2007-08-14 Ivester Jonathan D (VP of Worldwide Operations) Sale 7,500 35.74 268,050
2007-08-14 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 6,500 10.22 66,430
2007-08-01 Gay Gary R (Senior VP of Worldwide Sales) Sale 10,513 34.65 364,275
2007-08-01 Gay Gary R (Senior VP of Worldwide Sales) Option Exercise 10,513 24.30 255,465
2007-07-30 Cash Harvey B (Director) Sale 10,000 34.80 348,000
2007-07-10 Sayiner Necip (President & CEO) Sale 1,750 34.77 60,852
2007-07-10 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 34.23 222,494
2007-07-10 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-07-02 Gay Gary R (Senior VP of Worldwide Sales) Sale 10,510 34.55 363,120
2007-07-02 Gay Gary R (Senior VP of Worldwide Sales) Option Exercise 10,510 23.74 249,542
2007-06-20 Walsh Paul V Jr (VP Principal Accounting Office) Sale 294 35.00 10,290
2007-06-12 Sayiner Necip (President & CEO) Sale 1,250 32.83 41,042
2007-06-12 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 32.66 212,289
2007-06-12 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-06-01 Gay Gary R (VP of Worldwide Sales) Sale 10,510 34.49 362,489
2007-06-01 Gay Gary R (VP of Worldwide Sales) Option Exercise 10,510 21.41 225,019
2007-05-18 Walsh Paul V Jr (VP Principal Accounting Office) Sale 98 35.00 3,430
2007-05-18 Wood William P (Director) Sale 25,000 35.00 875,000
2007-05-18 Sooch Navdeep S (Director) Sale 50,000 35.00 1,750,035
2007-05-15 Ivester Jonathan D (VP of Worldwide Operations) Sale 6,500 34.02 221,130
2007-05-15 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-05-08 Sayiner Necip (President and CEO) Sale 1,250 32.49 40,608
2007-05-07 Gay Gary R (VP of Worldwide Sales) Sale 10,510 32.38 340,313
2007-05-07 Gay Gary R (VP of Worldwide Sales) Option Exercise 10,510 20.19 212,196
2007-05-01 Wood William P (Director) Sale 25,000 32.53 813,170
2007-05-01 Sooch Navdeep S (Director) Sale 138,625 32.42 4,494,201
2007-04-17 Welland David R (Director) Sale 30,000 31.62 948,684
2007-04-10 Sayiner Necip (President and CEO) Sale 1,250 30.35 37,931
2007-04-10 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 30.29 128,732
2007-04-10 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-04-03 Welland David R (Director) Sale 30,000 29.95 898,536
2007-03-20 Welland David R (Director) Sale 30,000 29.43 882,918
2007-03-13 Sayiner Necip (President and CEO) Sale 1,250 29.63 37,032
2007-03-13 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 30.00 127,500
2007-03-13 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-03-06 Welland David R (Director) Sale 30,000 29.59 887,580
2007-02-27 Cash Harvey B (Director) Sale 21,000 31.46 660,660
2007-02-23 Ivester Jonathan D (VP of Worldwide Operations) Sale 300 32.04 9,613
2007-02-20 Welland David R (Director) Sale 30,000 31.78 953,475
2007-02-13 Sayiner Necip (President & CEO) Sale 1,250 31.38 39,228
2007-02-13 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 31.45 133,662
2007-02-13 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-02-06 Welland David R (Director) Sale 30,000 33.18 995,361
2007-01-16 Welland David R (Director) Sale 30,000 34.05 1,021,374
2007-01-09 Sayiner Necip (President and CEO) Sale 1,250 32.81 41,017
2007-01-09 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 33.07 140,547
2007-01-09 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 1,400 .25 350
2007-01-03 Welland David R (Director) Sale 30,000 34.80 1,043,948
2006-12-19 Welland David R (Director) Sale 30,000 34.75 1,042,419
2006-12-12 Sayiner Necip (President and CEO) Sale 1,250 34.85 43,563
2006-12-12 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 34.24 145,520
2006-12-12 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 900 .25 225
2006-12-05 Welland David R (Director) Sale 30,000 32.59 977,721
2006-11-21 Welland David R (Director) Sale 30,000 34.58 1,037,346
2006-11-14 Sayiner Necip (President & CFO) Sale 1,250 33.33 41,662
2006-11-14 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 33.41 141,992
2006-11-14 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 900 .25 225
2006-11-07 Welland David R (Director) Sale 30,000 33.28 998,370
2006-10-17 Welland David R (Director) Sale 30,000 35.26 1,057,866
2006-10-10 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 33.19 141,057
2006-10-10 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 900 .25 225
2006-10-03 Welland David R (Director) Sale 30,000 30.03 901,038
2006-09-19 Welland David R (Director) Sale 30,000 32.18 965,480
2006-09-12 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 30.89 131,282
2006-09-12 Ivester Jonathan D (VP of Worldwide Operations) Option Exercise 900 .25 225
2006-09-05 Welland David R (Director) Sale 30,000 32.96 988,692
2006-08-15 Ivester Jonathan D (VP of Worldwide Operations) Sale 4,250 34.01 144,542

Insider trading activities including stock purchases, stock sales, and option exercises 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.

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