Insider Trading activities of Zendesk, Inc. (ZEN)

Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Zendesk, Inc. (ZEN) since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Zendesk, Inc. since year 2005. Table 2 shows the detailed insider transactions of Zendesk, Inc. since 2005. The reporting company's ticker symbol is ZEN. The reporting company's CIK number is 1463172.
The total value of stock buying since 2005 is $12,764,495.
The total value of stock sales since 2005 is $210,205,151.
The total value of stock option exercises since 2005 is $15,960,638.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Zendesk, Inc. (ZEN).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2019-11 0 $0 50,000 $3,716,749 19,758 $0
2019-10 0 $0 11,151 $770,538 26,241 $95,960
2019-09 0 $0 16,851 $1,323,446 31,944 $237,149
2019-08 0 $0 229,388 $17,733,547 51,187 $705,019
2019-07 0 $0 13,581 $1,244,796 27,761 $93,770
2019-06 0 $0 20,610 $1,819,995 42,447 $103,290
2019-05 0 $0 87,085 $7,527,763 77,310 $246,610
2019-04 0 $0 9,256 $756,966 22,717 $66,383
2019-03 0 $0 9,256 $769,942 22,617 $82,400
2019-02 0 $0 95,442 $7,451,294 42,812 $267,320
2019-01 0 $0 31,299 $1,980,285 52,378 $66,640
2018-12 0 $0 9,625 $578,583 23,621 $66,640
2018-11 0 $0 83,679 $4,571,649 23,627 $66,640
2018-10 0 $0 8,073 $502,264 22,623 $33,108
2018-09 0 $0 20,764 $1,452,447 26,622 $179,280
2018-08 0 $0 87,058 $5,422,606 29,294 $136,914
2018-07 0 $0 2,073 $125,063 16,620 $0
2018-06 0 $0 11,639 $673,987 26,125 $56,553
2018-05 0 $0 110,732 $6,128,746 78,176 $58,600
2018-04 0 $0 9,425 $466,472 22,521 $98,000
2018-03 0 $0 6,925 $338,627 20,025 $117,200
2018-02 0 $0 211,925 $8,586,871 155,017 $890,000
2018-01 0 $0 16,593 $606,949 26,857 $126,399
2017-12 0 $0 7,553 $257,784 16,862 $31,200
2017-11 0 $0 140,283 $4,858,271 96,855 $1,300,070
2017-10 0 $0 2,967 $89,309 11,861 $0
2017-09 0 $0 12,966 $378,938 26,262 $62,400
2017-08 0 $0 69,890 $1,976,410 19,643 $31,015
2017-07 0 $0 8,459 $247,477 24,645 $62,206
2017-06 0 $0 38,736 $1,085,432 61,236 $382,844
2017-05 0 $0 101,666 $2,730,250 179,715 $114,016
2017-04 0 $0 1,766 $49,801 4,634 $0
2017-03 0 $0 23,459 $642,737 19,341 $31,015
2017-02 0 $0 58,439 $1,468,620 13,020 $62,206
2017-01 0 $0 3,283 $77,547 8,372 $31,015
2016-12 0 $0 3,046 $65,501 8,372 $31,006
2016-11 0 $0 68,835 $1,644,750 14,984 $46,219
2016-10 0 $0 11,693 $342,600 18,373 $73,714
2016-09 0 $0 141,693 $4,315,494 118,371 $731,705
2016-08 0 $0 198,726 $6,048,313 61,740 $436,664
2016-07 0 $0 147,212 $4,221,317 150,954 $1,146,812
2016-06 0 $0 156,088 $4,146,077 154,847 $1,177,508
2016-05 0 $0 94,354 $2,340,934 96,098 $539,498
2016-04 0 $0 10,209 $222,996 14,152 $32,681
2016-03 0 $0 38,636 $773,063 38,654 $157,648
2016-02 0 $0 5,000 $82,135 5,468 $11,500
2016-01 0 $0 9,184 $213,964 14,023 $65,309
2015-12 0 $0 228,500 $5,862,364 191,716 $1,063,284
2015-11 0 $0 435,978 $10,857,175 340,991 $2,127,827
2015-10 0 $0 31,650 $644,900 34,573 $35,039
2015-09 0 $0 31,648 $681,959 34,570 $33,997
2015-08 0 $0 46,153 $953,851 38,155 $43,278
2015-07 0 $0 22,024 $467,352 26,573 $64,495
2015-06 0 $0 225,107 $5,034,149 55,745 $58,996
2015-05 0 $0 400,145 $9,006,483 92,657 $71,286
2015-04 0 $0 63,384 $1,448,334 67,931 $71,489
2015-03 0 $0 1,509,431 $32,939,726 98,976 $224,488
2015-02 0 $0 132,381 $3,230,717 72,381 $144,106
2015-01 0 $0 153,786 $3,797,193 77,380 $145,557
2014-12 0 $0 575,680 $13,711,811 421,104 $819,295
2014-11 0 $0 360,495 $8,739,832 307,541 $705,375
2014-05 1,370,000 $12,764,495 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Zendesk, Inc. insiders (ZEN)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2019-11-15 Liu Ying Christina (Chief Accounting Officer) Option Ex 725 .00 0
2019-11-15 Johnson Inamarie (Chief People & Diversity Off.) Option Ex 1,417 .00 0
2019-11-15 Gennaro Norman (President of Sales) Option Ex 2,720 .00 0
2019-11-15 Gomez Elena (Chief Financial Officer) Option Ex 4,208 .00 0
2019-11-15 Svane Mikkel (Chair and CEO) Sale 50,000 74.33 3,716,749
2019-11-15 Svane Mikkel (Chair and CEO) Option Ex 2,260 .00 0
2019-11-15 Mcdermott Adrian (President of Products) Option Ex 1,422 .00 0
2019-11-15 Geschke John (CLO and Chief of Staff) Option Ex 1,087 .00 0
2019-11-15 Keiser John T. (Chief Operating Officer) Option Ex 4,141 .00 0
2019-11-15 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,778 .00 0
2019-10-30 Titterton Jeffrey J (Chief Marketing Officer) Sale 1,000 72.00 72,000
2019-10-30 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,000 27.34 27,340
2019-10-21 Gomez Elena (Chief Financial Officer) Sale 4,500 64.50 290,250
2019-10-21 Gomez Elena (Chief Financial Officer) Option Ex 2,000 23.44 46,880
2019-10-18 Titterton Jeffrey J (Chief Marketing Officer) Sale 700 67.47 47,229
2019-10-17 Gennaro Norman (SVP, Worldwide Sales) Sale 753 68.64 51,685
2019-10-17 Mcdermott Adrian (President of Products) Sale 714 68.64 49,008
2019-10-15 Liu Ying Christina (Chief Accounting Officer) Option Ex 724 .00 0
2019-10-15 Johnson Inamarie (Chief People Officer) Option Ex 1,417 .00 0
2019-10-15 Gennaro Norman (SVP, Worldwide Sales) Option Ex 2,721 .00 0
2019-10-15 Gomez Elena (Chief Financial Officer) Option Ex 4,208 .00 0
2019-10-15 Svane Mikkel (Chair and CEO) Option Ex 2,260 .00 0
2019-10-15 Mcdermott Adrian (President of Products) Option Ex 1,421 .00 0
2019-10-15 Geschke John (CLO and SVP Administration) Option Ex 1,088 .00 0
2019-10-15 Keiser John T. (Chief Operating Officer) Option Ex 4,141 .00 0
2019-10-15 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,777 .00 0
2019-10-07 Mcdermott Adrian (President of Products) Sale 3,484 74.73 260,366
2019-10-07 Mcdermott Adrian (President of Products) Option Ex 3,484 6.24 21,740
2019-09-20 Gomez Elena (Chief Financial Officer) Sale 4,500 77.53 348,885
2019-09-20 Gomez Elena (Chief Financial Officer) Option Ex 2,000 23.44 46,880
2019-09-19 Titterton Jeffrey J (Chief Marketing Officer) Sale 1,700 78.20 132,940
2019-09-19 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,000 27.34 27,340
2019-09-18 Gennaro Norman (SVP, Worldwide Sales) Sale 753 76.69 57,747
2019-09-18 Mcdermott Adrian (President of Products) Sale 714 76.69 54,756
2019-09-15 Liu Ying Christina (Chief Accounting Officer) Option Ex 725 .00 0
2019-09-15 Johnson Inamarie (Chief People Officer) Option Ex 1,417 .00 0
2019-09-15 Gennaro Norman (SVP, Worldwide Sales) Option Ex 2,721 .00 0
2019-09-15 Gomez Elena (Chief Financial Officer) Option Ex 4,208 .00 0
2019-09-15 Svane Mikkel (Chair and CEO) Option Ex 2,260 .00 0
2019-09-15 Mcdermott Adrian (President of Products) Option Ex 1,422 .00 0
2019-09-15 Geschke John (CLO and SVP Administration) Option Ex 1,088 .00 0
2019-09-15 Keiser John T. (Chief Operating Officer) Option Ex 4,142 .00 0
2019-09-15 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,777 .00 0
2019-09-06 Mcdermott Adrian (President of Products) Sale 3,484 79.21 275,974
2019-09-06 Mcdermott Adrian (President of Products) Option Ex 3,484 6.24 21,740
2019-09-05 Geschke John (CLO and SVP Administration) Sale 5,700 79.50 453,144
2019-09-05 Geschke John (CLO and SVP Administration) Option Ex 5,700 24.77 141,189
2019-08-23 Geschke John (CLO and SVP Administration) Sale 5,500 80.07 440,384
2019-08-23 Geschke John (CLO and SVP Administration) Option Ex 5,500 23.44 128,920
2019-08-23 Wilson L Michelle Sale 20,000 82.50 1,650,000
2019-08-21 Mcdermott Adrian (President of Products) Sale 1,742 79.99 139,340
2019-08-21 Mcdermott Adrian (President of Products) Option Ex 1,742 6.24 10,870
2019-08-21 Titterton Jeffrey J (Chief Marketing Officer) Sale 6,000 80.15 480,906
2019-08-21 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 6,000 27.34 164,040
2019-08-20 Gomez Elena (Chief Financial Officer) Sale 5,000 76.60 383,000
2019-08-20 Gomez Elena (Chief Financial Officer) Option Ex 2,000 23.44 46,880
2019-08-20 Svane Mikkel (Chair and CEO) Sale 100,000 77.04 7,704,100
2019-08-20 Titterton Jeffrey J (Chief Marketing Officer) Sale 7,700 77.12 593,800
2019-08-20 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 7,000 27.34 191,380
2019-08-19 Gennaro Norman (SVP, Worldwide Sales) Sale 753 77.52 58,372
2019-08-19 Mcdermott Adrian (President of Products) Sale 715 77.52 55,426
2019-08-15 Liu Ying Christina (Chief Accounting Officer) Option Ex 726 .00 0
2019-08-15 Johnson Inamarie (Chief People Officer) Option Ex 1,417 .00 0
2019-08-15 Gennaro Norman (SVP, Worldwide Sales) Option Ex 2,721 .00 0
2019-08-15 Gomez Elena (Chief Financial Officer) Option Ex 4,208 .00 0
2019-08-15 Svane Mikkel (Chair and CEO) Sale 50,000 75.02 3,751,000
2019-08-15 Svane Mikkel (Chair and CEO) Option Ex 2,261 .00 0
2019-08-15 Mcdermott Adrian (President of Products) Option Ex 1,423 .00 0
2019-08-15 Geschke John (CLO and SVP Administration) Option Ex 1,087 .00 0
2019-08-15 Keiser John T. (Chief Operating Officer) Option Ex 4,141 .00 0
2019-08-15 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,777 .00 0
2019-08-12 Marooney Caryn Sale 2,794 75.60 211,226
2019-08-08 Geschke John (CLO and SVP Administration) Sale 5,700 78.27 446,161
2019-08-08 Geschke John (CLO and SVP Administration) Option Ex 5,700 24.77 141,189
2019-08-06 Mcdermott Adrian (President of Products) Sale 3,484 77.45 269,832
2019-08-06 Mcdermott Adrian (President of Products) Option Ex 3,484 6.24 21,740
2019-08-06 Wilson L Michelle Sale 20,000 77.50 1,550,000
2019-07-22 Gomez Elena (Chief Financial Officer) Sale 5,000 91.21 456,049
2019-07-22 Gomez Elena (Chief Financial Officer) Option Ex 2,000 23.44 46,880
2019-07-17 Gennaro Norman (SVP, Worldwide Sales) Sale 753 91.96 69,245
2019-07-17 Mcdermott Adrian (President of Products) Sale 714 91.96 65,659
2019-07-17 Titterton Jeffrey J (Chief Marketing Officer) Sale 388 91.96 35,680
2019-07-15 Johnson Inamarie (Chief People Officer) Option Ex 1,415 .00 0
2019-07-15 Gennaro Norman (SVP, Worldwide Sales) Option Ex 2,721 .00 0
2019-07-15 Gomez Elena (Chief Financial Officer) Option Ex 4,209 .00 0
2019-07-15 Svane Mikkel (Chair and CEO) Option Ex 2,261 .00 0
2019-07-15 Mcdermott Adrian (President of Products) Option Ex 1,421 .00 0
2019-07-15 Geschke John (CLO and SVP Administration) Option Ex 1,088 .00 0
2019-07-15 Keiser John T. (Chief Operating Officer) Option Ex 4,143 .00 0
2019-07-15 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,777 .00 0
2019-07-11 Geschke John (CLO and SVP Administration) Sale 1,500 94.15 141,228
2019-07-11 Geschke John (CLO and SVP Administration) Option Ex 1,500 9.52 14,280
2019-07-08 Mcdermott Adrian (President of Products) Sale 5,226 91.26 476,935
2019-07-08 Mcdermott Adrian (President of Products) Option Ex 5,226 6.24 32,610
2019-06-20 Gomez Elena (Chief Financial Officer) Sale 5,000 91.79 458,950
2019-06-20 Gomez Elena (Chief Financial Officer) Option Ex 2,000 23.44 46,880
2019-06-19 Gennaro Norman (SVP, Worldwide Sales) Sale 752 88.42 66,491
2019-06-19 Mcdermott Adrian (President of Products) Sale 714 88.42 63,131
2019-06-19 Titterton Jeffrey J (Chief Marketing Officer) Sale 503 88.42 44,475
2019-06-15 Johnson Inamarie (Chief People Officer) Option Ex 15,104 .00 0
2019-06-15 Gennaro Norman (SVP, Worldwide Sales) Option Ex 2,720 .00 0
2019-06-15 Gomez Elena (Chief Financial Officer) Option Ex 4,209 .00 0
2019-06-15 Svane Mikkel (Chair and CEO) Option Ex 2,260 .00 0
2019-06-15 Mcdermott Adrian (President of Products) Option Ex 1,422 .00 0
2019-06-15 Geschke John (CLO and SVP Administration) Option Ex 1,088 .00 0
2019-06-15 Keiser John T. (Chief Operating Officer) Option Ex 4,141 .00 0
2019-06-15 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,777 .00 0
2019-06-12 Geschke John (CLO and SVP Administration) Sale 2,500 87.86 219,637
2019-06-12 Geschke John (CLO and SVP Administration) Option Ex 2,500 9.52 23,800
2019-06-10 Geschke John (CLO and SVP Administration) Sale 915 92.12 84,293
2019-06-10 Titterton Jeffrey J (Chief Marketing Officer) Sale 2,000 90.30 180,600
2019-06-07 Titterton Jeffrey J (Chief Marketing Officer) Sale 3,000 89.31 267,939
2019-06-06 Mcdermott Adrian (President of Products) Sale 5,226 83.14 434,479
2019-06-06 Mcdermott Adrian (President of Products) Option Ex 5,226 6.24 32,610
2019-05-28 Nelson Elizabeth A Sale 10,000 88.74 887,390
2019-05-28 Nelson Elizabeth A Option Ex 10,000 6.58 65,800
2019-05-24 Nelson Elizabeth A Sale 10,000 88.04 880,410
2019-05-24 Nelson Elizabeth A Option Ex 10,000 6.58 65,800
2019-05-22 Curtis Michael John Option Ex 601 .00 0
2019-05-22 Marooney Caryn Option Ex 3,887 .00 0
2019-05-22 Frandsen Michael Lyle Option Ex 3,887 .00 0
2019-05-22 Koplow Hilarie A. Option Ex 3,887 .00 0
2019-05-22 Stalder Dana Option Ex 3,887 .00 0
2019-05-22 Bass Carl Option Ex 3,887 .00 0
2019-05-22 Szkutak Thomas J Option Ex 1,659 .00 0
2019-05-22 Nelson Elizabeth A Option Ex 3,887 .00 0
2019-05-22 Wilson L Michelle Option Ex 3,887 .00 0
2019-05-20 Gomez Elena (Chief Financial Officer) Sale 5,500 86.51 475,805
2019-05-20 Gomez Elena (Chief Financial Officer) Option Ex 2,500 23.44 58,600
2019-05-17 Gennaro Norman (SVP, Worldwide Sales) Sale 753 88.16 66,384
2019-05-17 Mcdermott Adrian (President of Products) Sale 715 88.16 63,034
2019-05-17 Titterton Jeffrey J (Chief Marketing Officer) Sale 503 88.16 44,344
2019-05-16 Gomez Elena (Chief Financial Officer) Sale 455 87.09 39,625
2019-05-16 Mcdermott Adrian (President of Products) Sale 446 87.09 38,842
2019-05-15 Gennaro Norman (SVP, Worldwide Sales) Option Ex 2,721 .00 0
2019-05-15 Gomez Elena (Chief Financial Officer) Option Ex 4,207 .00 0
2019-05-15 Svane Mikkel (Chair and CEO) Sale 50,000 85.69 4,284,250
2019-05-15 Svane Mikkel (Chair and CEO) Option Ex 2,261 .00 0
2019-05-15 Mcdermott Adrian (President of Products) Option Ex 1,422 .00 0
2019-05-15 Geschke John (CLO and SVP Administration) Option Ex 1,086 .00 0
2019-05-15 Keiser John T. (Chief Operating Officer) Option Ex 4,141 .00 0
2019-05-15 Titterton Jeffrey J (Chief Marketing Officer) Option Ex 1,777 .00 0
2019-05-10 Geschke John (CLO and SVP Administration) Sale 2,500 87.60 218,990
2019-05-10 Geschke John (CLO and SVP Administration) Option Ex 2,500 9.52 23,800
2019-05-06 Mcdermott Adrian (President of Products) Sale 6,213 85.09 528,689
2019-05-06 Mcdermott Adrian (President of Products) Option Ex 5,226 6.24 32,610
2019-04-24 Svane Mikkel (Chair and CEO) Option Ex 100 9.52 952
2019-04-22 Gomez Elena (Chief Financial Officer) Sale 5,500 80.87 444,785
2019-04-22 Gomez Elena (Chief Financial Officer) Option Ex 2,500 23.44 58,600
2019-04-17 Gennaro Norman (SVP, Worldwide Sales) Sale 753 82.01 61,753

Insider trading activities including stock purchases, stock sales, and option exercises of ZEN listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Zendesk, Inc. (symbol ZEN, CIK number 1463172) see the Securities and Exchange Commission (SEC) website.




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