Insider Trading activities of Semtech Corp insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Semtech Corp since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Semtech Corp since year 2005. Table 2 shows the detailed insider transactions of Semtech Corp since 2005. The reporting company's ticker symbol is SMTC. The reporting company's CIK number is 88941.
The total value of stock buying since 2005 is $98,287.
The total value of stock sales since 2005 is $122,502,595.
The total value of stock option exercises since 2005 is $57,863,738.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Semtech Corp (SMTC).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-12 0 $0 7,500 $258,905 15,000 $374,800
2017-11 0 $0 9,250 $368,967 4,125 $55,665
2017-10 0 $0 47,173 $1,841,863 36,916 $1,025,981
2017-09 0 $0 18,147 $665,367 4,250 $114,365
2017-08 0 $0 9,147 $358,791 20,800 $114,365
2017-07 0 $0 29,000 $1,059,451 84,000 $474,665
2017-06 0 $0 61,787 $2,219,478 39,522 $1,217,843
2017-05 0 $0 4,085 $149,800 3,875 $58,700
2017-04 0 $0 1,500 $48,003 5,000 $138,000
2017-03 0 $0 31,286 $1,067,870 7,500 $181,775
2017-02 0 $0 1,500 $50,230 207,511 $0
2017-01 0 $0 13,200 $423,455 11,700 $272,961
2016-12 0 $0 131,645 $4,052,355 122,400 $2,930,289
2016-10 0 $0 11,295 $301,608 3,750 $85,912
2016-09 0 $0 4,542 $123,170 0 $0
2016-08 0 $0 1,500 $39,006 15,525 $0
2016-07 0 $0 1,000 $24,423 0 $0
2016-06 0 $0 38,683 $925,454 62,976 $1,239,179
2016-05 0 $0 0 $0 500 $0
2016-03 0 $0 5,000 $98,040 65,000 $83,400
2016-02 0 $0 4,500 $81,409 123,927 $33,360
2016-01 0 $0 17,500 $326,519 15,000 $250,200
2015-12 0 $0 36,500 $704,723 34,000 $599,970
2015-11 0 $0 31,500 $609,742 22,500 $387,775
2015-10 0 $0 14,000 $239,102 14,000 $233,520
2015-09 0 $0 4,000 $67,320 4,000 $66,720
2015-08 0 $0 23,795 $395,982 22,650 $166,800
2015-07 0 $0 11,743 $212,864 10,000 $166,800
2015-06 0 $0 16,743 $352,284 15,000 $250,050
2015-05 0 $0 1,743 $37,704 0 $0
2015-04 0 $0 2,804 $70,657 0 $0
2015-03 0 $0 86,751 $2,383,500 130,250 $1,080,345
2015-02 0 $0 17,138 $460,175 116,507 $116,039
2015-01 0 $0 21,064 $566,962 15,133 $169,943
2014-12 0 $0 29,799 $805,311 23,800 $346,524
2014-11 0 $0 13,800 $350,827 8,800 $98,824
2014-10 0 $0 21,300 $538,678 18,800 $265,624
2014-09 0 $0 80,050 $2,184,372 70,050 $957,893
2014-08 0 $0 18,800 $464,896 9,800 $111,504
2014-07 0 $0 13,800 $338,183 4,800 $53,904
2014-06 0 $0 53,640 $1,454,759 79,800 $1,416,954
2014-05 0 $0 13,800 $336,696 4,800 $53,904
2014-04 0 $0 30,985 $774,920 14,800 $233,604
2014-03 0 $0 41,110 $1,060,132 114,667 $424,050
2014-02 0 $0 9,000 $202,232 64,163 $110,650
2014-01 0 $0 46,000 $1,120,183 37,000 $531,449
2013-12 0 $0 17,500 $460,269 26,000 $238,870
2013-11 0 $0 17,859 $540,336 8,500 $120,370
2013-10 0 $0 22,500 $696,407 18,500 $356,570
2013-09 0 $0 18,500 $566,921 3,500 $51,320
2013-08 0 $0 23,430 $709,550 22,250 $260,632
2013-07 0 $0 10,000 $342,787 4,500 $64,470
2013-06 0 $0 102,420 $3,715,450 81,633 $1,384,324
2013-05 0 $0 94,975 $3,371,889 87,833 $1,411,893
2013-04 0 $0 131,726 $4,310,515 110,500 $1,831,850
2013-03 0 $0 111,009 $3,650,058 200,890 $1,322,389
2013-02 0 $0 8,500 $264,121 38,506 $107,000
2013-01 0 $0 50,999 $1,497,751 37,500 $437,965
2012-12 0 $0 147,866 $4,172,404 115,816 $1,706,364
2012-11 0 $0 6,833 $174,335 5,750 $26,300
2012-10 0 $0 15,342 $383,348 5,175 $61,955
2012-09 0 $0 139,263 $3,496,470 113,640 $1,514,733
2012-08 0 $0 26,040 $644,023 29,373 $268,569
2012-07 0 $0 15,266 $372,947 12,100 $167,923
2012-06 0 $0 19,816 $475,099 15,150 $204,174
2012-05 0 $0 3,500 $93,015 7,000 $26,300
2012-04 0 $0 3,500 $97,760 2,000 $26,300
2012-03 0 $0 110,525 $3,174,267 141,736 $1,217,095
2012-02 0 $0 3,500 $104,239 33,331 $26,300
2012-01 0 $0 60,624 $1,557,902 56,750 $838,057
2011-12 0 $0 39,687 $910,387 50,687 $532,287
2011-11 0 $0 1,500 $36,810 3,750 $0
2011-10 0 $0 97,500 $2,390,933 96,000 $1,636,940
2011-09 0 $0 57,198 $1,321,521 55,698 $968,744
2011-08 0 $0 51,500 $1,048,958 56,250 $894,500
2011-07 0 $0 148,834 $3,967,260 147,334 $2,360,342
2011-06 0 $0 117,834 $3,081,694 115,334 $1,893,285
2011-05 0 $0 154,666 $4,304,015 155,000 $2,421,640
2011-04 0 $0 102,793 $2,673,368 86,293 $1,521,134
2011-03 0 $0 303,189 $7,256,265 312,422 $4,528,575
2011-02 0 $0 51,500 $1,163,330 82,666 $894,500
2011-01 0 $0 102,208 $2,326,215 92,834 $1,457,146
2010-12 0 $0 37,547 $891,874 48,547 $655,065
2010-11 0 $0 1,500 $33,495 3,750 $0
2010-10 0 $0 74,250 $1,520,107 68,750 $782,800
2010-09 0 $0 147,340 $2,863,162 83,917 $1,166,016
2010-08 0 $0 11,500 $196,575 6,250 $0
2010-07 0 $0 1,500 $24,810 0 $0
2010-06 0 $0 50,034 $898,073 35,828 $84,888
2010-05 0 $0 1,500 $26,445 0 $0
2010-04 0 $0 1,500 $26,355 41,992 $48,290
2010-03 0 $0 1,500 $25,140 0 $0
2010-02 0 $0 11,374 $179,989 47,836 $72,675
2010-01 0 $0 3,500 $59,236 0 $0
2009-12 0 $0 2,500 $42,186 0 $0
2009-11 0 $0 1,500 $22,725 3,750 $0
2009-10 0 $0 1,500 $24,119 0 $0
2009-09 0 $0 72,861 $1,351,137 43,950 $614,177
2009-08 0 $0 46,250 $851,735 6,250 $0
2009-07 0 $0 1,500 $23,850 0 $0
2009-06 0 $0 103,343 $1,711,338 74,418 $987,792
2009-05 0 $0 34,000 $524,802 30,000 $400,620
2009-04 0 $0 35,538 $488,519 0 $0
2009-03 0 $0 44,166 $588,797 26,666 $214,154
2009-02 0 $0 1,500 $18,900 0 $0
2009-01 0 $0 31,768 $357,180 30,268 $205,217
2008-12 0 $0 41,500 $479,095 40,000 $358,720
2008-11 0 $0 1,500 $17,760 0 $0
2008-10 0 $0 1,500 $18,000 0 $0
2008-09 0 $0 25,500 $387,165 20,000 $0
2008-08 0 $0 31,000 $460,086 26,000 $176,280
2008-07 0 $0 9,000 $124,466 0 $0
2008-06 0 $0 1,500 $26,609 277,200 $997,221
2008-05 0 $0 151,900 $2,673,100 100,700 $153,671
2008-04 0 $0 1,500 $22,755 0 $0
2008-03 0 $0 109,500 $1,504,070 129,334 $340,055
2008-02 0 $0 1,500 $18,555 0 $0
2008-01 7,000 $98,287 1,500 $21,045 0 $0
2007-12 0 $0 1,500 $23,520 0 $0
2007-11 0 $0 1,500 $24,690 0 $0
2007-10 0 $0 12,000 $243,719 12,000 $81,360
2007-09 0 $0 136,760 $2,680,706 131,960 $559,639
2007-07 0 $0 69,500 $1,238,937 89,500 $369,184
2007-06 0 $0 80,000 $1,367,517 90,000 $136,860
2006-04 0 $0 35,000 $635,985 35,000 $123,735
2006-03 0 $0 15,000 $270,100 15,000 $16,875
2006-01 0 $0 102,222 $1,945,179 69,500 $43,322

Table 2. Detailed insider stock purchases, sales, and option exercises of Semtech Corp insiders (SMTC)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2017-12-15 Maheswaran Mohan (President and CEO) Sale 2,500 34.44 86,105
2017-12-13 Antle Glen M (Board of Directors) Sale 5,000 34.56 172,800
2017-12-13 Antle Glen M (Board of Directors) Option Ex 5,000 25.25 126,250
2017-12-04 Edwards Bruce C (Board of Directors) Option Ex 10,000 24.86 248,550
2017-11-16 Brown Simon A (VP and GM) Option Ex 1,875 .00 0
2017-11-15 Maheswaran Mohan (President and CEO) Sale 2,500 37.76 94,397
2017-11-01 Silberstein Asaf (SVP) Sale 1,000 40.72 40,720
2017-11-01 Ammann Charles B. (EVP) Sale 2,250 40.67 91,505
2017-11-01 Ammann Charles B. (EVP) Option Ex 2,250 24.74 55,665
2017-11-01 Kim James Jungsup (SVP) Sale 1,500 40.67 61,009
2017-11-01 Chukwu Emeka (EVP and CFO) Sale 2,000 40.67 81,336
2017-10-13 Beauchamp Gary (EVP & GM) Sale 21,666 39.84 863,086
2017-10-13 Beauchamp Gary (EVP & GM) Option Ex 21,666 28.05 607,796
2017-10-13 Silberstein Asaf (SVP) Sale 1,100 40.28 44,310
2017-10-13 Maheswaran Mohan (President and CEO) Sale 2,500 40.03 100,082
2017-10-12 Silberstein Asaf (SVP) Sale 1,000 40.25 40,250
2017-10-10 Silberstein Asaf (SVP) Sale 1,957 39.58 77,448
2017-10-10 Silberstein Asaf (SVP) Option Ex 1,000 30.82 30,820
2017-10-06 Silberstein Asaf (SVP) Sale 2,500 37.73 94,332
2017-10-06 Silberstein Asaf (SVP) Option Ex 2,500 29.35 73,375
2017-10-05 Burra James P (Board of Directors) Sale 5,000 37.65 188,265
2017-10-05 Burra James P (Board of Directors) Option Ex 5,000 25.25 126,250
2017-10-03 Pegulu Marc (VP & GM) Sale 1,000 38.21 38,214
2017-10-03 Silberstein Asaf (SVP) Sale 1,000 38.30 38,300
2017-10-03 Silberstein Asaf (SVP) Option Ex 1,000 29.35 29,350
2017-10-02 Silberstein Asaf (SVP) Sale 3,700 38.03 140,699
2017-10-02 Silberstein Asaf (SVP) Option Ex 1,500 29.35 44,025
2017-10-02 Ammann Charles B. (EVP) Sale 2,250 37.72 84,874
2017-10-02 Ammann Charles B. (EVP) Option Ex 2,250 24.74 55,665
2017-10-02 Kim James Jungsup (SVP) Sale 1,500 37.71 56,565
2017-10-02 Chukwu Emeka (EVP and CFO) Sale 2,000 37.72 75,438
2017-10-02 Chukwu Emeka (EVP and CFO) Option Ex 2,000 29.35 58,700
2017-09-15 Maheswaran Mohan (President and CEO) Sale 2,500 35.64 89,092
2017-09-06 Costello Mark C (VP & GM) Sale 897 36.27 32,532
2017-09-05 Wilson John Michael (EVP) Sale 4,000 36.14 144,544
2017-09-05 Hankin Rockell N (Board of Directors) Sale 5,000 36.65 183,230
2017-09-01 Ammann Charles B. (EVP) Sale 2,250 37.56 84,503
2017-09-01 Ammann Charles B. (EVP) Option Ex 2,250 24.74 55,665
2017-09-01 Kim James Jungsup (SVP) Sale 1,500 37.57 56,350
2017-09-01 Chukwu Emeka (EVP and CFO) Sale 2,000 37.56 75,116
2017-09-01 Chukwu Emeka (EVP and CFO) Option Ex 2,000 29.35 58,700
2017-08-17 Brown Simon A (VP & GM) Option Ex 1,250 .00 0
2017-08-16 Costello Mark C (VP & GM) Sale 897 37.81 33,917
2017-08-15 Maheswaran Mohan (President and CEO) Sale 2,500 38.21 95,525
2017-08-14 Brown Simon A (VP & GM) Option Ex 550 .00 0
2017-08-14 Pegulu Marc (VP & GM) Option Ex 750 .00 0
2017-08-14 Costello Mark C (VP & GM) Option Ex 1,250 .00 0
2017-08-13 Brown Simon A (VP & GM) Option Ex 875 .00 0
2017-08-13 Pegulu Marc (VP & GM) Option Ex 2,125 .00 0
2017-08-13 Costello Mark C (VP & GM) Option Ex 1,625 .00 0
2017-08-12 Brown Simon A (VP & GM) Option Ex 1,250 .00 0
2017-08-12 Pegulu Marc (VP & GM) Option Ex 1,875 .00 0
2017-08-12 Silberstein Asaf (SVP) Option Ex 5,000 .00 0
2017-08-01 Ammann Charles B. (EVP) Sale 2,250 39.89 89,752
2017-08-01 Ammann Charles B. (EVP) Option Ex 2,250 24.74 55,665
2017-08-01 Kim James Jungsup (SVP) Sale 1,500 39.88 59,827
2017-08-01 Chukwu Emeka (EVP and CFO) Sale 2,000 39.88 79,770
2017-08-01 Chukwu Emeka (EVP and CFO) Option Ex 2,000 29.35 58,700
2017-07-14 Silberstein Asaf (SVP) Sale 1,000 37.65 37,650
2017-07-14 Silberstein Asaf (SVP) Option Ex 1,000 29.35 29,350
2017-07-14 Maheswaran Mohan (President and CEO) Sale 1,500 37.41 56,112
2017-07-14 Maheswaran Mohan (President and CEO) Option Ex 66,000 .00 0
2017-07-13 Costello Mark C (VP & GM) Sale 3,750 37.48 140,553
2017-07-13 Costello Mark C (VP & GM) Option Ex 3,750 23.28 87,300
2017-07-13 Silberstein Asaf (SVP) Sale 1,000 37.55 37,550
2017-07-13 Silberstein Asaf (SVP) Option Ex 1,000 29.35 29,350
2017-07-12 Silberstein Asaf (SVP) Sale 2,000 37.15 74,300
2017-07-12 Silberstein Asaf (SVP) Option Ex 2,000 29.35 58,700
2017-07-11 Silberstein Asaf (SVP) Sale 1,000 36.50 36,500
2017-07-11 Silberstein Asaf (SVP) Option Ex 1,000 29.35 29,350
2017-07-11 Faltemier Sharon K (SVP HR) Sale 8,000 36.51 292,088
2017-07-11 Lindstrom James T (Board of Directors) Sale 5,000 36.35 181,765
2017-07-11 Lindstrom James T (Board of Directors) Option Ex 5,000 25.25 126,250
2017-07-07 Silberstein Asaf (SVP) Sale 1,500 35.48 53,224
2017-07-05 Chukwu Emeka (EVP and CFO) Sale 1,200 35.00 42,000
2017-07-05 Chukwu Emeka (EVP and CFO) Option Ex 1,200 29.35 35,220
2017-07-03 Ammann Charles B. (EVP) Sale 2,250 35.25 79,319
2017-07-03 Ammann Charles B. (EVP) Option Ex 2,250 24.74 55,665
2017-07-03 Chukwu Emeka (EVP and CFO) Sale 800 35.49 28,390
2017-07-03 Chukwu Emeka (EVP and CFO) Option Ex 800 29.35 23,480
2017-06-30 Wilson John Michael (CTO SVP) Sale 3,000 35.95 107,862
2017-06-20 Antle Glen M (Board of Directors) Sale 5,579 35.82 199,839
2017-06-19 Lindstrom James T (Board of Directors) Sale 5,000 35.88 179,420
2017-06-19 Lindstrom James T (Board of Directors) Option Ex 5,000 27.60 138,000
2017-06-19 Hankin Rockell N (Board of Directors) Sale 2,534 35.70 90,476
2017-06-14 Li Ye Jane (Director) Option Ex 2,534 36.50 92,491
2017-06-14 Santoro Carmelo J. (Director) Option Ex 2,534 36.50 92,491
2017-06-14 Summers Sylvia (Director) Option Ex 2,534 36.50 92,491
2017-06-14 Maheswaran Mohan (President and CEO) Sale 1,500 36.45 54,678
2017-06-14 Lindstrom James T (Director) Option Ex 2,534 36.50 92,491
2017-06-14 Antle Glen M (Director) Option Ex 2,534 36.50 92,491
2017-06-14 Edwards Bruce C (Director) Option Ex 2,534 36.50 92,491
2017-06-14 Hankin Rockell N (Director) Option Ex 2,534 36.50 92,491
2017-06-14 Burra James P (Director) Option Ex 2,534 36.50 92,491
2017-06-09 Beauchamp Gary (Executive Vice President) Sale 30,899 35.52 1,097,532
2017-06-09 Beauchamp Gary (Executive Vice President) Option Ex 5,000 17.51 87,550
2017-06-09 Antle Glen M (Director) Sale 5,000 37.46 187,320
2017-06-09 Antle Glen M (Director) Option Ex 5,000 27.60 138,000
2017-06-07 Pegulu Marc (Vice President) Sale 1,000 36.45 36,450
2017-06-06 Costello Mark C (Vice President) Sale 3,025 36.16 109,368
2017-06-05 Ammann Charles B. (Executive Vice President) Sale 2,250 36.76 82,707
2017-06-05 Ammann Charles B. (Executive Vice President) Option Ex 2,250 24.74 55,665
2017-06-01 Chukwu Emeka (Executive VP and CFO) Sale 2,000 36.91 73,826
2017-06-01 Chukwu Emeka (Executive VP and CFO) Option Ex 2,000 29.35 58,700
2017-05-30 Chukwu Emeka (Executive VP and CFO) Sale 2,000 37.02 74,030
2017-05-30 Chukwu Emeka (Executive VP and CFO) Option Ex 2,000 29.35 58,700
2017-05-16 Costello Mark C (Vice President) Sale 585 36.53 21,370
2017-05-15 Maheswaran Mohan (President and CEO) Sale 1,500 36.27 54,400
2017-05-13 Costello Mark C (Vice President) Option Ex 1,875 .00 0
2017-04-17 Maheswaran Mohan (President and CEO) Sale 1,500 32.00 48,003
2017-04-05 Edwards Bruce C (Director) Option Ex 5,000 27.60 138,000
2017-03-27 Pegulu Marc (Vice President) Sale 1,000 34.50 34,500
2017-03-27 Ammann Charles B. (Executive Vice President) Sale 14,286 34.20 488,581
2017-03-15 Costello Mark C (Vice President) Sale 2,500 33.75 84,377
2017-03-15 Costello Mark C (Vice President) Option Ex 2,500 17.51 43,775
2017-03-15 Maheswaran Mohan (President and CEO) Sale 1,500 33.80 50,703
2017-03-14 Burra James P (Director) Sale 5,000 33.91 169,560
2017-03-14 Burra James P (Director) Option Ex 5,000 27.60 138,000
2017-03-13 Wilson John Michael (Executive Vice President) Sale 7,000 34.31 240,149
2017-02-26 Faltemier Sharon K (Senior Vice President) Option Ex 5,000 .00 0
2017-02-25 Beauchamp Gary (Executive Vice President) Option Ex 6,667 .00 0
2017-02-25 Silberstein Asaf (Senior Vice President) Option Ex 3,334 .00 0
2017-02-25 Ammann Charles B. (Executive Vice President) Option Ex 10,000 .00 0
2017-02-25 Kim James Jungsup (Senior Vice President) Option Ex 4,000 .00 0
2017-02-25 Chukwu Emeka (Executive VP and CFO) Option Ex 5,000 .00 0
2017-02-25 Faltemier Sharon K (Senior Vice President) Option Ex 2,500 .00 0
2017-02-25 Maheswaran Mohan (President and CEO) Option Ex 6,011 .00 0
2017-02-25 Wilson John Michael (Executive Vice President) Option Ex 4,000 .00 0
2017-02-24 Beauchamp Gary (Executive Vice President) Option Ex 6,667 .00 0
2017-02-24 Silberstein Asaf (Senior Vice President) Option Ex 4,000 .00 0
2017-02-24 Ammann Charles B. (Executive Vice President) Option Ex 3,333 .00 0
2017-02-24 Kim James Jungsup (Senior Vice President) Option Ex 5,000 .00 0
2017-02-24 Chukwu Emeka (Executive VP and CFO) Option Ex 6,667 .00 0
2017-02-24 Faltemier Sharon K (Senior Vice President) Option Ex 3,333 .00 0
2017-02-24 Maheswaran Mohan (President and CEO) Option Ex 11,000 .00 0
2017-02-24 Wilson John Michael (Executive Vice President) Option Ex 5,667 .00 0
2017-02-23 Pegulu Marc (Vice President) Option Ex 8,000 .00 0
2017-02-23 Costello Mark C (Vice President) Option Ex 8,000 .00 0
2017-02-23 Beauchamp Gary (Executive Vice President) Option Ex 10,000 .00 0
2017-02-23 Silberstein Asaf (Senior Vice President) Option Ex 6,000 .00 0
2017-02-23 Ammann Charles B. (Executive Vice President) Option Ex 7,000 .00 0
2017-02-23 Kim James Jungsup (Senior Vice President) Option Ex 18,333 .00 0
2017-02-23 Chukwu Emeka (Executive VP and CFO) Option Ex 18,333 .00 0
2017-02-23 Faltemier Sharon K (Senior Vice President) Option Ex 6,000 .00 0
2017-02-23 Maheswaran Mohan (President and CEO) Option Ex 27,666 .00 0
2017-02-23 Wilson John Michael (Executive Vice President) Option Ex 6,000 .00 0
2017-02-13 Maheswaran Mohan (President and CEO) Sale 1,500 33.49 50,230
2017-01-13 Maheswaran Mohan (President and CEO) Sale 1,500 32.78 49,172
2017-01-09 Wilson John Michael (Executive Vice President) Sale 11,700 31.99 374,283
2017-01-09 Wilson John Michael (Executive Vice President) Option Ex 11,700 23.33 272,961

Insider trading activities including stock purchases, stock sales, and option exercises of SMTC listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Semtech Corp (symbol SMTC, CIK number 88941) see the Securities and Exchange Commission (SEC) website.