Insider Trading activities of Volterra Semiconductor Corp insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Volterra Semiconductor Corp since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Volterra Semiconductor Corp since year 2005. Table 2 shows the detailed insider transactions of Volterra Semiconductor Corp since 2005. The reporting company's ticker symbol is VLTR. The reporting company's CIK number is 1050550.
The total value of stock buying since 2005 is $101,688.
The total value of stock sales since 2005 is $47,543,070,142.
The total value of stock option exercises since 2005 is $6,496,518.


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Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Volterra Semiconductor Corp (VLTR).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2013-04 0 $0 0 $0 18,900 $0
2013-03 0 $0 40,000 $596,729 10,000 $134,499
2013-02 0 $0 25,000 $389,192 5,000 $35,800
2012-11 0 $0 2,470 $46,065 0 $0
2012-09 0 $0 25,000 $602,250 0 $0
2012-08 0 $0 32,735 $803,543 32,735 $397,879
2012-05 0 $0 4,334 $140,941 0 $0
2012-04 0 $0 38,500 $1,269,920 30,200 $185,648
2012-03 0 $0 55,688 $1,754,156 39,688 $369,073
2012-02 0 $0 112,000 $3,539,900 2,000 $17,320
2012-01 0 $0 93,625 $2,762,685 22,025 $186,556
2011-12 0 $0 19,600 $497,020 3,000 $21,840
2011-11 0 $0 58,780 $1,469,100 4,000 $34,640
2011-10 0 $0 95,020 $2,286,406 0 $0
2011-08 0 $0 6,600 $165,000 20,000 $100,000
2011-07 0 $0 26,600 $665,000 30,000 $150,000
2011-06 0 $0 64,602 $1,423,965 16,000 $122,217
2011-05 0 $0 65,350 $1,615,158 8,750 $43,750
2011-04 0 $0 11,250 $278,212 24,250 $31,250
2011-03 0 $0 12,465 $282,525 6,250 $31,250
2011-02 0 $0 11,250 $287,375 11,250 $48,750
2011-01 4,000 $96,948 6,250 $164,437 6,250 $31,250
2010-12 0 $0 23,750 $557,325 23,750 $227,950
2010-11 0 $0 24,125 $496,385 6,250 $31,250
2010-10 0 $0 6,250 $128,812 6,250 $31,250
2010-09 0 $0 6,250 $132,875 6,250 $31,250
2010-08 0 $0 8,750 $182,500 8,750 $40,000
2010-07 0 $0 6,250 $170,856 6,250 $31,250
2010-06 0 $0 26,950 $648,570 19,150 $129,147
2010-05 0 $0 30,837 $709,248 18,937 $98,830
2010-04 0 $0 35,700 $954,978 324,500 $1,173,400
2010-03 0 $0 216,250 $5,314,918 288,875 $1,177,424
2010-02 0 $0 76,338 $1,645,799 62,438 $267,813
2010-01 0 $0 148,400 $2,968,465 77,000 $473,900
2009-12 0 $0 12,450 $228,331 4,000 $12,800
2009-11 0 $0 13,387 $201,742 4,937 $21,401
2009-10 0 $0 12,450 $223,798 12,000 $38,400
2009-09 0 $0 32,350 $598,377 12,000 $38,400
2009-08 0 $0 14,359 $232,637 4,938 $21,410
2009-07 0 $0 62,387 $982,135 19,937 $165,688
2009-06 0 $0 50,000 $700,000 0 $0
2009-02 0 $0 42,500 $358,224 122,500 $39,200
2008-12 0 $0 12,500 $92,175 27,500 $52,000
2008-11 0 $0 37,500 $314,000 37,500 $12,000
2008-09 0 $0 4,100 $61,500 0 $0
2008-08 0 $0 4,100 $64,862 0 $0
2008-07 0 $0 4,100 $63,345 0 $0
2008-06 0 $0 4,100 $69,372 0 $0
2007-12 0 $0 842 $10,179 842 $2,694
2007-11 0 $0 815 $10,122 815 $2,608
2007-10 0 $0 755 $10,056 755 $2,416
2007-09 0 $0 843 $10,116 843 $2,697
2007-08 0 $0 842 $10,112 842 $2,694
2007-07 0 $0 741 $10,092 741 $2,371
2007-06 0 $0 3,987 $60,895 727 $2,326
2007-05 0 $0 47,922 $738,264 662 $2,118
2007-04 0 $0 131,055 $2,094,555 706 $2,259
2007-03 0 $0 979 $13,274 748 $2,393
2007-02 0 $0 735 $10,128 102,610 $389,477
2007-01 0 $0 40,000 $600,920 0 $0
2006-12 0 $0 44,000 $700,140 0 $0
2006-11 0 $0 45,291 $776,393 0 $0
2006-10 0 $0 68,000 $1,197,186 0 $0
2006-09 0 $0 45,000 $762,500 0 $0
2006-08 0 $0 25,844 $396,059 0 $0
2006-07 0 $0 5,000 $75,350 0 $0
2006-06 0 $0 5,000 $75,550 0 $0
2006-05 0 $0 17,000 $285,710 3,000 $25,980
2006-04 0 $0 27,000 $499,870 0 $0
2006-03 0 $0 90,000 $3,974,475,216 0 $0
2006-02 0 $0 38,245 $74,929,122 0 $0
2006-01 0 $0 61,000 $43,202,316,800 0 $0
2005-12 0 $0 44,000 $243,326,400 0 $0
2005-07 400 $4,740 0 $0 0 $0
2005-06 0 $0 16,000 $240,230 0 $0
2005-05 0 $0 21,500 $294,095 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Volterra Semiconductor Corp insiders (VLTR)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2013-04-14 Liou Fu-tai (Director) Option Ex 3,600 .00 0
2013-04-14 Smith Stephen M (Director) Option Ex 900 .00 0
2013-04-14 Richardson David Jeffrey (Director) Option Ex 3,600 .00 0
2013-04-14 Ross Edward C (Director) Option Ex 3,600 .00 0
2013-04-14 Quinsey Ralph (Director) Option Ex 3,600 .00 0
2013-04-14 Paisley Christopher B (Director) Option Ex 3,600 .00 0
2013-03-15 Numann William (SVP Servers & Storage & Comm) Sale 20,000 14.79 295,800
2013-03-14 Numann William (SVP Servers & Storage & Comm) Sale 7,078 15.00 106,170
2013-03-14 Numann William (SVP Servers & Storage & Comm) Option Ex 7,078 13.45 95,199
2013-03-14 Teuscher Craig (SVP & Chief Operating Officer) Sale 10,000 15.09 150,900
2013-03-13 Numann William (SVP Servers & Storage & Comm) Sale 2,922 15.01 43,859
2013-03-13 Numann William (SVP Servers & Storage & Comm) Option Ex 2,922 13.45 39,300
2013-02-28 Teuscher Craig (SVP & Chief Operating Officer) Sale 3,859 15.50 59,814
2013-02-27 Teuscher Craig (SVP & Chief Operating Officer) Sale 16,141 15.45 249,378
2013-02-21 Truman Thomas (VP Worldwide Sales) Sale 5,000 16.00 80,000
2013-02-21 Truman Thomas (VP Worldwide Sales) Option Ex 5,000 7.16 35,800
2012-11-06 Truman Thomas (VP Worldwide Sales) Sale 2,470 18.65 46,065
2012-09-07 Teuscher Craig (SVP, Notebook Products Group) Sale 25,000 24.09 602,250
2012-08-21 Numann William (SVP Server & Storage & Comm) Sale 3,459 25.50 88,204
2012-08-21 Numann William (SVP Server & Storage & Comm) Option Ex 3,459 7.16 24,766
2012-08-17 Numann William (SVP Server & Storage & Comm) Sale 541 25.50 13,795
2012-08-17 Numann William (SVP Server & Storage & Comm) Option Ex 541 7.16 3,873
2012-08-10 Numann William (SVP Server & Storage & Comm) Sale 4,000 24.75 99,000
2012-08-10 Numann William (SVP Server & Storage & Comm) Option Ex 4,000 7.16 28,640
2012-08-09 Truman Thomas (VP Worldwide Sales) Sale 24,735 24.36 602,544
2012-08-09 Truman Thomas (VP Worldwide Sales) Option Ex 24,735 13.77 340,600
2012-05-02 Burns Mike (SVP of Finance CFO & Treasurer) Sale 4,334 32.52 140,941
2012-04-30 Numann William (SVP Server & Storage & Comm) Sale 5,000 32.86 164,300
2012-04-30 Numann William (SVP Server & Storage & Comm) Option Ex 5,000 14.76 73,800
2012-04-27 Paisley Christopher B (Director) Sale 2,500 32.44 81,100
2012-04-27 Paisley Christopher B (Director) Option Ex 2,500 5.00 12,500
2012-04-25 Ross Edward C (Director) Sale 4,000 31.29 125,160
2012-04-25 Ross Edward C (Director) Option Ex 4,000 8.66 34,640
2012-04-19 Truman Thomas (VP Worldwide Sales) Sale 4,000 33.80 135,200
2012-04-19 Truman Thomas (VP Worldwide Sales) Option Ex 4,000 10.81 43,228
2012-04-19 Liou Fu-tai (Director) Option Ex 3,600 .00 0
2012-04-19 Ross Edward C (Director) Option Ex 3,600 .00 0
2012-04-19 Quinsey Ralph (Director) Option Ex 900 .00 0
2012-04-19 Paisley Christopher B (Director) Option Ex 3,600 .00 0
2012-04-16 Truman Thomas (VP Worldwide Sales) Sale 3,000 31.92 95,760
2012-04-16 Truman Thomas (VP Worldwide Sales) Option Ex 3,000 7.16 21,480
2012-04-02 Staszak Jeffrey (President, CEO) Sale 20,000 33.42 668,400
2012-03-26 Burns Mike (SVP of Finance CFO & Treasurer) Sale 10,000 34.00 340,000
2012-03-26 Burns Mike (SVP of Finance CFO & Treasurer) Option Ex 10,000 7.16 71,600
2012-03-15 Numann William (SVP Server & Storage & Comm) Sale 6,000 32.06 192,360
2012-03-01 Burns Mike (SVP of Finance CFO & Treasurer) Sale 29,688 30.78 913,796
2012-03-01 Burns Mike (SVP of Finance CFO & Treasurer) Option Ex 29,688 10.02 297,473
2012-03-01 Staszak Jeffrey (President, CEO) Sale 10,000 30.80 308,000
2012-02-09 Staszak Jeffrey (President, CEO) Sale 75,000 32.00 2,400,000
2012-02-09 Ross Edward C (Director) Sale 2,000 31.45 62,900
2012-02-09 Ross Edward C (Director) Option Ex 2,000 8.66 17,320
2012-02-03 Staszak Jeffrey (President, CEO) Sale 25,000 31.02 775,500
2012-02-01 Staszak Jeffrey (President, CEO) Sale 10,000 30.15 301,500
2012-01-30 Paisley Christopher B (Director) Sale 5,000 30.02 150,100
2012-01-26 Liou Fu-tai (Director) Sale 6,900 30.67 211,623
2012-01-26 Liou Fu-tai (Director) Option Ex 6,900 7.28 50,232
2012-01-26 Teuscher Craig (SVP, Notebook Products Group) Sale 5,126 30.50 156,343
2012-01-26 Ross Edward C (Director) Sale 2,000 30.52 61,040
2012-01-26 Ross Edward C (Director) Option Ex 2,000 8.66 17,320
2012-01-25 Teuscher Craig (SVP, Notebook Products Group) Sale 44,874 30.52 1,369,554
2012-01-23 Burns Mike (SVP of Finance CFO & Treasurer) Sale 13,125 29.00 380,625
2012-01-23 Burns Mike (SVP of Finance CFO & Treasurer) Option Ex 13,125 9.07 119,004
2012-01-17 Numann William (SVP of New Product Development) Sale 6,600 26.00 171,600
2012-01-03 Staszak Jeffrey (President, CEO) Sale 10,000 26.18 261,800
2011-12-30 Numann William (SVP of New Product Development) Sale 6,600 26.00 171,600
2011-12-06 Liou Fu-tai (Director) Sale 3,000 25.14 75,420
2011-12-06 Liou Fu-tai (Director) Option Ex 3,000 7.28 21,840
2011-12-05 Staszak Jeffrey (President, CEO) Sale 10,000 25.00 250,000
2011-11-15 Numann William (SVP of New Product Development) Sale 6,600 25.00 165,000
2011-11-04 Staszak Jeffrey (President, CEO) Sale 10,000 25.00 250,000
2011-11-04 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 28,387 25.00 709,675
2011-11-04 Ross Edward C (Director) Sale 2,000 25.00 50,000
2011-11-04 Ross Edward C (Director) Option Ex 2,000 8.66 17,320
2011-11-03 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 9,793 25.00 244,825
2011-11-03 Ross Edward C (Director) Sale 2,000 24.80 49,600
2011-11-03 Ross Edward C (Director) Option Ex 2,000 8.66 17,320
2011-10-28 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 1,658 25.00 41,450
2011-10-27 Staszak Jeffrey (President, CEO) Sale 20,000 25.00 500,000
2011-10-27 Numann William (SVP of New Product Development) Sale 13,200 25.00 330,000
2011-10-27 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 10,162 25.04 254,456
2011-10-26 Staszak Jeffrey (President, CEO) Sale 50,000 23.21 1,160,500
2011-08-23 Numann William (SVP of New Product Development) Option Ex 20,000 5.00 100,000
2011-08-15 Numann William (SVP of New Product Development) Sale 6,600 25.00 165,000
2011-07-26 Staszak Jeffrey (President, CEO) Sale 20,000 25.00 500,000
2011-07-26 Numann William (SVP of New Product Development) Sale 6,600 25.00 165,000
2011-07-19 Numann William (SVP of New Product Development) Option Ex 10,000 5.00 50,000
2011-07-07 Numann William (SVP of New Product Development) Option Ex 10,000 5.00 50,000
2011-07-01 Numann William (SVP of New Product Development) Option Ex 10,000 5.00 50,000
2011-06-29 Numann William (SVP of New Product Development) Sale 6,600 24.00 158,400
2011-06-16 Staszak Jeffrey (President, CEO) Sale 6,250 22.16 138,500
2011-06-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2011-06-15 Truman Thomas (VP Worldwide Sales) Sale 9,750 21.75 212,062
2011-06-15 Truman Thomas (VP Worldwide Sales) Option Ex 9,750 9.33 90,967
2011-06-15 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 20,000 21.80 436,000
2011-06-14 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 20,000 21.76 435,200
2011-06-13 Truman Thomas (VP Worldwide Sales) Sale 2,002 21.88 43,803
2011-05-31 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 25,000 24.50 612,500
2011-05-27 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 2,423 24.54 59,460
2011-05-26 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 22,577 24.50 553,136
2011-05-16 Staszak Jeffrey (President, CEO) Sale 6,250 25.32 158,250
2011-05-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2011-05-16 Numann William (SVP of New Product Development) Sale 6,600 25.32 167,112
2011-05-02 Paisley Christopher B (Director) Sale 2,500 25.88 64,700
2011-05-02 Paisley Christopher B (Director) Option Ex 2,500 5.00 12,500
2011-04-29 Teuscher Craig (SVP of Ops, Mnf. Eng. & QA) Sale 5,000 26.23 131,150
2011-04-21 Liou Fu-tai (Director) Option Ex 3,600 .00 0
2011-04-21 Ross Edward C (Director) Option Ex 3,600 .00 0
2011-04-21 Winn Edward C V (Director) Option Ex 3,600 .00 0
2011-04-21 Paisley Christopher B (Director) Option Ex 3,600 .00 0
2011-04-21 Friedman Mel (Director) Option Ex 3,600 .00 0
2011-04-18 Staszak Jeffrey (President, CEO) Sale 6,250 23.53 147,062
2011-04-18 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2011-03-16 Staszak Jeffrey (President, CEO) Sale 6,250 22.87 142,937
2011-03-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2011-03-14 Numann William (SVP of New Product Development) Sale 6,215 22.46 139,588
2011-02-16 Staszak Jeffrey (President, CEO) Sale 6,250 25.98 162,375
2011-02-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2011-02-01 Paisley Christopher B (Director) Sale 5,000 25.00 125,000
2011-02-01 Paisley Christopher B (Director) Option Ex 5,000 3.50 17,500
2011-01-27 Quinsey Ralph (Director) Buy 4,000 24.24 96,948
2011-01-18 Staszak Jeffrey (President, CEO) Sale 6,250 26.31 164,437
2011-01-18 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2010-12-16 Staszak Jeffrey (President, CEO) Sale 6,250 23.54 147,125
2010-12-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2010-12-06 Winn Edward C V (Director) Sale 17,500 23.44 410,200
2010-12-06 Winn Edward C V (Director) Option Ex 17,500 11.24 196,700
2010-11-16 Staszak Jeffrey (President, CEO) Sale 6,250 20.62 128,875
2010-11-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2010-11-10 Numann William (VP Marketing) Sale 17,875 20.56 367,510
2010-10-18 Staszak Jeffrey (President, CEO) Sale 6,250 20.61 128,812
2010-10-18 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2010-09-16 Staszak Jeffrey (President, CEO) Sale 6,250 21.26 132,875
2010-09-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2010-08-16 Staszak Jeffrey (President, CEO) Sale 6,250 20.00 125,000
2010-08-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2010-08-02 Paisley Christopher B (Director) Sale 2,500 23.00 57,500
2010-08-02 Paisley Christopher B (Director) Option Ex 2,500 3.50 8,750
2010-07-16 Staszak Jeffrey (President, CEO) Sale 6,250 27.34 170,856
2010-07-16 Staszak Jeffrey (President, CEO) Option Ex 6,250 5.00 31,250
2010-06-14 Staszak Jeffrey (President, CEO) Sale 16,500 24.09 397,518
2010-06-14 Staszak Jeffrey (President, CEO) Option Ex 8,000 3.20 25,600
2010-06-14 Teuscher Craig (VP Sales & Appl. Engineering) Sale 4,200 24.06 101,052
2010-06-09 Liou Fu-tai (Director) Option Ex 4,900 7.28 35,672
2010-06-03 Burns Mike (VP, CFO and Treasurer) Sale 6,250 24.00 150,000
2010-06-03 Burns Mike (VP, CFO and Treasurer) Option Ex 6,250 10.86 67,875
2010-05-25 Liou Fu-tai (Director) Option Ex 5,000 7.28 36,400
2010-05-14 Staszak Jeffrey (President, CEO) Sale 16,500 21.92 361,680
2010-05-14 Staszak Jeffrey (President, CEO) Option Ex 8,000 3.20 25,600
2010-05-10 Teuscher Craig (VP Sales & Appl. Engineering) Sale 8,400 24.28 203,952
2010-05-03 Burns Mike (VP, CFO and Treasurer) Sale 3,437 24.19 83,141
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Insider trading activities including stock purchases, stock sales, and option exercises of VLTR listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Volterra Semiconductor Corp (symbol VLTR, CIK number 1050550) see the Securities and Exchange Commission (SEC) website.