Insider Trading activities of Stamps.com Inc insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Stamps.com Inc since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Stamps.com Inc since year 2005. Table 2 shows the detailed insider transactions of Stamps.com Inc since 2005. The reporting company's ticker symbol is STMP. The reporting company's CIK number is 1082923.
The total value of stock buying since 2005 is $7,485,457.
The total value of stock sales since 2005 is $405,122,566.
The total value of stock option exercises since 2005 is $65,302,413.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Stamps.com Inc (STMP).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2018-01 0 $0 1,200 $225,900 1,200 $105,456
2017-12 0 $0 9,315 $1,680,471 9,315 $368,463
2017-11 0 $0 143,333 $25,858,282 146,418 $4,811,969
2017-10 0 $0 130,071 $29,447,123 130,071 $4,459,644
2017-09 0 $0 212,557 $42,032,776 167,955 $5,137,605
2017-08 0 $0 228,506 $45,219,479 41,200 $1,387,710
2017-07 0 $0 5,200 $789,548 5,200 $235,095
2017-06 0 $0 56,370 $8,208,324 30,200 $1,223,004
2017-05 0 $0 11,400 $1,512,827 14,485 $602,583
2017-04 0 $0 14,184 $1,526,377 14,184 $459,702
2017-03 0 $0 239,866 $31,149,728 240,015 $7,139,744
2017-02 0 $0 88,600 $11,603,612 15,000 $287,549
2017-01 0 $0 11,750 $1,447,950 5,000 $162,049
2016-12 0 $0 170,000 $18,487,485 5,000 $162,049
2016-11 0 $0 40,000 $4,346,440 5,000 $162,049
2016-10 0 $0 5,000 $472,690 5,000 $162,049
2016-09 0 $0 5,000 $472,650 5,000 $162,049
2016-08 0 $0 5,000 $468,750 8,085 $262,033
2016-07 0 $0 5,000 $394,960 5,000 $162,049
2016-06 0 $0 5,000 $431,520 5,000 $162,049
2016-05 0 $0 5,000 $419,850 11,170 $362,018
2016-04 0 $0 5,000 $469,350 5,000 $162,049
2016-03 10,000 $1,131,500 40,388 $4,848,203 5,000 $162,049
2016-02 0 $0 23,000 $2,603,428 60,332 $1,250,431
2016-01 0 $0 4,985 $471,446 14,985 $292,563
2015-12 0 $0 7,553 $845,495 7,553 $194,089
2015-11 0 $0 83,985 $8,489,139 23,985 $737,631
2015-08 0 $0 112,626 $9,333,473 46,126 $713,779
2015-07 0 $0 0 $0 6,989 $157,112
2015-06 0 $0 5,698 $423,207 5,698 $71,509
2015-05 0 $0 41,769 $2,950,053 39,770 $762,011
2015-04 0 $0 0 $0 5,000 $116,900
2015-03 0 $0 37,000 $2,453,143 37,000 $464,349
2015-02 0 $0 23,837 $1,352,845 23,837 $305,709
2014-12 0 $0 7,828 $392,767 7,828 $102,546
2014-11 20,000 $928,740 26,335 $1,156,306 31,335 $422,388
2014-10 0 $0 1,237 $44,519 1,237 $16,575
2014-05 0 $0 2,778 $84,951 12,778 $156,563
2014-04 0 $0 2,778 $93,368 2,778 $34,863
2014-03 0 $0 2,777 $98,750 2,777 $34,851
2014-02 0 $0 13,953 $501,449 13,953 $175,109
2014-01 0 $0 9,722 $376,782 14,722 $187,510
2013-12 0 $0 9,721 $415,150 9,721 $121,998
2013-11 0 $0 44,164 $2,059,823 43,204 $542,207
2013-10 0 $0 137,046 $6,441,582 45,552 $607,031
2013-09 0 $0 114,937 $5,116,182 85,931 $1,081,588
2013-08 0 $0 199,043 $8,086,466 195,805 $2,650,667
2013-07 0 $0 12,778 $518,980 2,778 $34,863
2013-06 0 $0 2,777 $105,526 2,777 $34,851
2013-05 0 $0 37,778 $1,369,716 27,778 $348,611
2013-04 0 $0 71,556 $2,150,626 71,556 $898,027
2013-02 0 $0 6,777 $179,598 6,777 $85,051
2013-01 0 $0 2,778 $75,478 2,778 $34,863
2012-12 0 $0 57,778 $1,504,009 57,778 $725,113
2012-11 0 $0 27,576 $756,893 27,050 $339,476
2012-10 0 $0 19,278 $520,632 19,278 $241,938
2012-09 0 $0 5,555 $133,745 5,555 $69,714
2012-07 0 $0 2,778 $69,061 2,778 $34,863
2012-06 0 $0 2,778 $66,672 2,778 $34,863
2012-05 0 $0 21,269 $615,683 18,979 $238,185
2012-04 0 $0 149,349 $4,567,759 87,037 $1,307,186
2012-03 0 $0 5,860 $162,589 5,860 $56,683
2012-02 0 $0 80,951 $2,574,441 26,351 $321,471
2012-01 0 $0 480,600 $14,612,833 5,555 $69,714
2011-11 0 $0 879,161 $25,197,980 880,421 $10,537,174
2011-10 0 $0 111,900 $3,115,857 91,900 $1,168,352
2011-09 0 $0 92,456 $1,964,956 82,456 $942,670
2011-08 0 $0 40,652 $705,739 38,852 $426,041
2011-05 29,489 $366,358 0 $0 0 $0
2011-02 0 $0 2,475 $34,111 2,475 $17,523
2011-01 0 $0 6,931 $91,052 6,931 $26,199
2010-11 0 $0 137,662 $2,062,497 107,932 $768,724
2010-10 0 $0 35,000 $557,375 35,000 $247,800
2010-08 36,036 $383,783 51,499 $555,938 34,083 $220,159
2010-05 0 $0 20,000 $211,719 0 $0
2010-03 0 $0 25,000 $249,205 0 $0
2009-11 0 $0 190,543 $1,880,471 0 $0
2009-10 0 $0 25,000 $254,599 0 $0
2009-06 0 $0 3,572 $32,176 3,572 $31,362
2009-04 0 $0 22,500 $202,938 0 $0
2009-01 0 $0 24,095 $241,605 0 $0
2008-02 168,550 $1,514,858 0 $0 0 $0
2007-08 92,003 $1,070,350 0 $0 0 $0
2007-06 0 $0 28,500 $388,455 25,000 $163,500
2007-02 0 $0 26,500 $411,545 26,500 $163,902
2006-10 0 $0 5,000 $99,149 32,577 $204,879
2006-08 0 $0 5,000 $96,250 5,000 $18,900
2006-07 0 $0 5,000 $119,949 5,000 $21,300
2006-06 0 $0 5,000 $148,100 5,000 $21,300
2006-05 0 $0 25,000 $784,400 106,665 $1,408,306
2006-04 0 $0 276,706 $10,303,497 85,474 $1,492,891
2006-03 0 $0 204,268 $6,989,129 56,317 $645,486
2006-02 0 $0 182,347 $5,656,642 117,725 $2,071,303
2006-01 0 $0 380,298 $10,091,334 32,500 $328,175
2005-12 0 $0 24,450 $594,447 0 $0
2005-11 0 $0 220,315 $5,041,383 0 $0
2005-10 0 $0 25,000 $500,000 0 $0
2005-08 0 $0 33,000 $571,263 0 $0
2005-07 57,525 $1,015,718 0 $0 0 $0
2005-06 0 $0 120,000 $2,767,080 0 $0
2005-05 50,000 $1,074,150 362,195 $7,801,022 0 $0
2005-03 0 $0 6,300 $111,843 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Stamps.com Inc insiders (STMP)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2018-01-02 Khechfe Amine (Chief Strategy Officer) Sale 1,200 188.25 225,900
2018-01-02 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-12-18 Mcbride Kenneth Thomas (Chairman & CEO) Sale 8,115 182.33 1,479,591
2017-12-18 Mcbride Kenneth Thomas (Chairman & CEO) Option Ex 8,115 32.41 263,007
2017-12-01 Khechfe Amine (Chief Strategy Officer) Sale 1,200 167.40 200,880
2017-12-01 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-11-28 Mcbride Kenneth Thomas (Chairman & CEO) Sale 400 180.59 72,237
2017-11-28 Mcbride Kenneth Thomas (Chairman & CEO) Option Ex 400 32.41 12,963
2017-11-27 Mcbride Kenneth Thomas (Chairman & CEO) Sale 141,733 180.01 25,514,065
2017-11-27 Mcbride Kenneth Thomas (Chairman & CEO) Option Ex 141,733 32.41 4,593,566
2017-11-07 Weisberg Seth (Chief Legal Officer) Option Ex 3,085 32.41 99,984
2017-11-01 Khechfe Amine (Chief Strategy Officer) Sale 1,200 226.65 271,980
2017-11-01 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-10-25 Buerba Sebastian (Chief Marketing Officer) Sale 3,448 230.61 795,129
2017-10-25 Buerba Sebastian (Chief Marketing Officer) Option Ex 3,448 32.14 110,818
2017-10-25 Clem John Roland (Chief Product & Strategy Offic) Sale 1,590 230.02 365,731
2017-10-25 Clem John Roland (Chief Product & Strategy Offic) Option Ex 1,590 32.41 51,531
2017-10-24 Carberry Jeffrey (Chief Financial Officer) Sale 52,237 225.02 11,754,213
2017-10-24 Carberry Jeffrey (Chief Financial Officer) Option Ex 52,237 32.41 1,693,001
2017-10-24 Buerba Sebastian (Chief Marketing Officer) Sale 16,552 230.22 3,810,634
2017-10-24 Buerba Sebastian (Chief Marketing Officer) Option Ex 16,552 32.41 536,450
2017-10-24 Clem John Roland (Chief Product & Strategy Offic) Sale 8,410 230.21 1,936,024
2017-10-24 Clem John Roland (Chief Product & Strategy Offic) Option Ex 8,410 32.41 272,568
2017-10-24 Biswas Michael John (Chief Technology Officer) Sale 28,888 227.94 6,584,615
2017-10-24 Biswas Michael John (Chief Technology Officer) Option Ex 28,888 43.70 1,262,405
2017-10-23 Carberry Jeffrey (Chief Financial Officer) Sale 7,346 225.00 1,652,850
2017-10-23 Carberry Jeffrey (Chief Financial Officer) Option Ex 7,346 12.30 90,355
2017-10-23 Biswas Michael John (Chief Technology Officer) Sale 400 225.00 90,000
2017-10-23 Biswas Michael John (Chief Technology Officer) Option Ex 400 32.41 12,963
2017-10-12 Clem John Roland (Chief Product & Strategy Offic) Sale 5,728 222.07 1,272,028
2017-10-12 Clem John Roland (Chief Product & Strategy Offic) Option Ex 5,728 32.41 185,644
2017-10-11 Clem John Roland (Chief Product & Strategy Offic) Sale 3,472 220.74 766,419
2017-10-11 Clem John Roland (Chief Product & Strategy Offic) Option Ex 3,472 32.41 112,527
2017-10-04 Clem John Roland (Chief Product & Strategy Offic) Sale 300 220.00 66,000
2017-10-04 Clem John Roland (Chief Product & Strategy Offic) Option Ex 300 32.41 9,722
2017-10-03 Clem John Roland (Chief Product & Strategy Offic) Sale 500 220.00 110,000
2017-10-03 Clem John Roland (Chief Product & Strategy Offic) Option Ex 500 32.41 16,204
2017-10-02 Khechfe Amine (Chief Strategy Officer) Sale 1,200 202.90 243,480
2017-10-02 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-09-22 Clem John Roland (Chief Product & Strategy Offic) Sale 4,300 210.62 905,674
2017-09-22 Clem John Roland (Chief Product & Strategy Offic) Option Ex 4,300 32.41 139,362
2017-09-22 Biswas Michael John (Chief Technology Officer) Sale 27,092 210.71 5,708,474
2017-09-22 Biswas Michael John (Chief Technology Officer) Option Ex 27,092 32.41 878,051
2017-09-21 Clem John Roland (Chief Product & Strategy Offic) Sale 3,200 210.00 672,003
2017-09-21 Clem John Roland (Chief Product & Strategy Offic) Option Ex 3,200 32.41 103,711
2017-09-21 Biswas Michael John (Chief Technology Officer) Sale 6,081 210.00 1,277,010
2017-09-21 Biswas Michael John (Chief Technology Officer) Option Ex 6,081 32.41 197,085
2017-09-20 Clem John Roland (Chief Product & Strategy Offic) Sale 2,500 210.04 525,092
2017-09-20 Clem John Roland (Chief Product & Strategy Offic) Option Ex 2,500 32.41 81,024
2017-09-20 Biswas Michael John (Chief Technology Officer) Sale 4,327 210.05 908,903
2017-09-20 Biswas Michael John (Chief Technology Officer) Option Ex 4,327 32.41 140,238
2017-09-13 Biswas Michael John (Chief Technology Officer) Sale 37,500 201.80 7,567,387
2017-09-13 Biswas Michael John (Chief Technology Officer) Option Ex 37,500 32.41 1,215,374
2017-09-11 Buerba Sebastian (Chief Marketing Officer) Sale 44,255 192.30 8,510,325
2017-09-11 Buerba Sebastian (Chief Marketing Officer) Option Ex 44,255 32.41 1,434,304
2017-09-11 Biswas Michael John (Chief Technology Officer) Sale 39,102 192.58 7,530,380
2017-09-11 Biswas Michael John (Chief Technology Officer) Option Ex 37,500 22.48 843,000
2017-09-07 Miller Lloyd I Iii (Director) Sale 25,000 189.00 4,725,000
2017-09-01 Khechfe Amine (Chief Strategy Officer) Sale 1,200 191.25 229,500
2017-09-01 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-09-01 Miller Lloyd I Iii (Director) Sale 18,000 192.95 3,473,028
2017-08-31 Miller Lloyd I Iii (Director) Sale 22,000 191.32 4,209,084
2017-08-30 Miller Lloyd I Iii (Director) Sale 28,000 194.85 5,455,856
2017-08-29 Miller Lloyd I Iii (Director) Sale 9,117 192.53 1,755,296
2017-08-28 Miller Lloyd I Iii (Director) Sale 19,830 190.63 3,780,212
2017-08-25 Miller Lloyd I Iii (Director) Sale 55,359 194.72 10,779,725
2017-08-25 Miller Lloyd I Iii (Director) Option Ex 15,000 31.47 472,005
2017-08-24 Miller Lloyd I Iii (Director) Sale 1,000 194.75 194,746
2017-08-14 Ananda Mohan P (Director) Sale 10,000 212.24 2,122,440
2017-08-11 Ananda Mohan P (Director) Sale 30,000 208.85 6,265,650
2017-08-07 Jones G Bradford (Director) Sale 27,000 208.00 5,616,135
2017-08-03 Weisberg Seth (Chief Legal Officer) Sale 25,000 194.46 4,861,475
2017-08-03 Weisberg Seth (Chief Legal Officer) Option Ex 25,000 32.41 810,249
2017-08-01 Khechfe Amine (Chief Strategy Officer) Sale 1,200 149.05 178,860
2017-08-01 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-07-24 Bortnak James (Co-President and Corp & BusDev) Sale 4,000 150.84 603,368
2017-07-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 4,000 32.41 129,639
2017-07-03 Khechfe Amine (Chief Strategy Officer) Sale 1,200 155.15 186,180
2017-07-03 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-06-26 Bortnak James (Co-President and Corp & BusDev) Sale 4,000 150.38 601,524
2017-06-26 Bortnak James (Co-President and Corp & BusDev) Option Ex 4,000 32.41 129,639
2017-06-19 Weisberg Seth (Chief Legal Officer) Sale 5,000 150.15 750,740
2017-06-19 Weisberg Seth (Chief Legal Officer) Option Ex 5,000 32.41 162,049
2017-06-16 Ananda Mohan P (Director) Sale 40,000 145.05 5,802,160
2017-06-16 Ananda Mohan P (Director) Option Ex 20,000 41.29 825,860
2017-06-07 Clem John Roland (Chief Product & Strategy Offic) Sale 6,170 144.00 888,480
2017-06-01 Khechfe Amine (Chief Strategy Officer) Sale 1,200 137.85 165,420
2017-06-01 Khechfe Amine (Chief Strategy Officer) Option Ex 1,200 87.88 105,456
2017-05-26 Weisberg Seth (Chief Legal Officer) Sale 4,500 140.78 633,528
2017-05-26 Weisberg Seth (Chief Legal Officer) Option Ex 4,500 32.41 145,844
2017-05-25 Weisberg Seth (Chief Legal Officer) Sale 500 140.11 70,055
2017-05-25 Weisberg Seth (Chief Legal Officer) Option Ex 500 32.41 16,204
2017-05-24 Bortnak James (Co-President and Corp & BusDev) Sale 4,000 130.31 521,244
2017-05-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 4,000 32.41 129,639
2017-05-16 Clem John Roland (Chief Product & Strategy Offic) Option Ex 3,085 32.41 99,984
2017-05-04 Khechfe Amine (Chief Strategy Officer) Sale 2,400 120.00 288,000
2017-05-04 Khechfe Amine (Chief Strategy Officer) Option Ex 2,400 87.88 210,912
2017-04-24 Bortnak James (Co-President and Corp & BusDev) Sale 4,184 111.46 466,357
2017-04-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 4,184 32.41 135,603
2017-04-17 Mcbride Kenneth Thomas (Chairman & CEO) Sale 10,000 106.00 1,060,020
2017-04-17 Mcbride Kenneth Thomas (Chairman & CEO) Option Ex 10,000 32.41 324,099
2017-03-31 Jones G Bradford (Director) Option Ex 20,000 16.13 322,660
2017-03-24 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 117.42 587,110
2017-03-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2017-03-16 Clem John Roland (Chief Product & Strategy Offic) Sale 9,412 131.68 1,239,372
2017-03-16 Clem John Roland (Chief Product & Strategy Offic) Option Ex 8,699 12.55 109,172
2017-03-16 Huebner Kyle (CFO & Co-President) Sale 45,454 132.00 5,999,882
2017-03-16 Huebner Kyle (CFO & Co-President) Option Ex 45,454 43.70 1,986,339
2017-03-16 Mcbride Kenneth Thomas (Chairman & CEO) Sale 5,000 132.00 659,980
2017-03-15 Huebner Kyle (CFO & Co-President) Sale 50,000 131.45 6,572,450
2017-03-15 Huebner Kyle (CFO & Co-President) Option Ex 50,000 32.41 1,620,499
2017-03-14 Huebner Kyle (CFO & Co-President) Sale 50,000 128.99 6,449,599
2017-03-14 Huebner Kyle (CFO & Co-President) Option Ex 35,862 22.48 806,177
2017-03-10 Mcbride Kenneth Thomas (Chairman & CEO) Sale 40,000 129.96 5,198,320
2017-03-10 Mcbride Kenneth Thomas (Chairman & CEO) Option Ex 40,000 32.41 1,296,399
2017-03-08 Mcbride Kenneth Thomas (Chairman & CEO) Sale 30,000 127.47 3,824,160
2017-03-08 Mcbride Kenneth Thomas (Chairman & CEO) Option Ex 30,000 22.48 674,400
2017-03-01 Weisberg Seth (Chief Legal Officer) Sale 5,000 123.77 618,855
2017-03-01 Weisberg Seth (Chief Legal Officer) Option Ex 5,000 32.41 162,049
2017-02-24 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 131.59 657,960
2017-02-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2017-02-22 Miller Lloyd I Iii (Director) Sale 6,100 136.00 829,600
2017-02-21 Miller Lloyd I Iii (Director) Sale 20,250 134.00 2,713,500
2017-02-17 Huebner Kyle (CFO & Co-President) Sale 7,000 130.76 915,334
2017-02-17 Huebner Kyle (CFO & Co-President) Option Ex 7,000 12.55 87,850
2017-02-16 Huebner Kyle (CFO & Co-President) Sale 3,000 130.66 391,968
2017-02-16 Huebner Kyle (CFO & Co-President) Option Ex 3,000 12.55 37,650
2017-02-16 Miller Lloyd I Iii (Director) Sale 20,250 131.00 2,652,750
2017-02-15 Miller Lloyd I Iii (Director) Sale 6,744 129.00 869,976
2017-02-10 Miller Lloyd I Iii (Director) Sale 6 129.00 774
2017-02-09 Miller Lloyd I Iii (Director) Sale 13,500 127.50 1,721,250
2017-02-07 Miller Lloyd I Iii (Director) Sale 6,750 126.00 850,500
2017-01-25 Miller Lloyd I Iii (Director) Sale 6,750 125.00 843,750
2017-01-24 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 120.84 604,200
2017-01-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2016-12-23 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 115.34 576,705
2016-12-23 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2016-12-13 Miller Lloyd I Iii (Director) Sale 15,000 114.05 1,710,780
2016-12-05 Miller Lloyd I Iii (Director) Sale 100,000 108.00 10,800,000
2016-11-25 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 113.29 566,440
2016-11-25 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2016-11-15 Miller Lloyd I Iii (Director) Sale 35,000 108.00 3,780,000
2016-10-24 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 94.54 472,690
2016-10-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2016-09-26 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 94.53 472,650
2016-09-26 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2016-08-24 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 93.75 468,750
2016-08-24 Bortnak James (Co-President and Corp & BusDev) Option Ex 5,000 32.41 162,049
2016-08-09 Weisberg Seth (Chief Legal Officer) Option Ex 3,085 32.41 99,984
2016-07-25 Bortnak James (Co-President and Corp & BusDev) Sale 5,000 78.99 394,960

Insider trading activities including stock purchases, stock sales, and option exercises of STMP listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Stamps.com Inc (symbol STMP, CIK number 1082923) see the Securities and Exchange Commission (SEC) website.