Insider Stock Trading History of Geschke John


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Geschke John since year 2005. The trader's CIK number is 1601008. At the time of this reporting, Geschke John is the CLO and SVP Administration of Zendesk, Inc. . (stock ticker symbol ZEN). See this page for all insider trading activities at Zendesk, Inc. .


Stock purchases, sales, and option exercises reported by insider Geschke John since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2017-11-15 ZEN Zendesk, Inc. Option Ex 630 .00 0
2017-11-13 ZEN Zendesk, Inc. Option Ex 10,000 7.88 78,800
2017-11-13 ZEN Zendesk, Inc. Sale 9,727 35.09 341,349
2017-11-14 ZEN Zendesk, Inc. Sale 273 35.00 9,555
2017-11-08 ZEN Zendesk, Inc. Option Ex 4,800 9.52 45,696
2017-11-08 ZEN Zendesk, Inc. Sale 4,800 35.46 170,198
2017-11-02 ZEN Zendesk, Inc. Sale 30,200 34.39 1,038,698
2017-11-02 ZEN Zendesk, Inc. Option Ex 30,200 7.88 237,976
2017-10-15 ZEN Zendesk, Inc. Option Ex 632 .00 0
2017-09-15 ZEN Zendesk, Inc. Option Ex 631 .00 0
2017-09-11 ZEN Zendesk, Inc. Sale 10,000 29.33 293,310
2017-09-11 ZEN Zendesk, Inc. Option Ex 10,000 6.24 62,400
2017-08-15 ZEN Zendesk, Inc. Option Ex 632 .00 0
2017-07-19 ZEN Zendesk, Inc. Option Ex 5,000 6.24 31,200
2017-07-19 ZEN Zendesk, Inc. Sale 5,000 29.02 145,110
2017-07-15 ZEN Zendesk, Inc. Option Ex 631 .00 0
2017-06-23 ZEN Zendesk, Inc. Sale 10,000 29.34 293,380
2017-06-23 ZEN Zendesk, Inc. Option Ex 10,000 6.24 62,400
2017-06-15 ZEN Zendesk, Inc. Option Ex 630 .00 0
2017-05-15 ZEN Zendesk, Inc. Option Ex 431 .00 0
2017-05-04 ZEN Zendesk, Inc. Option Ex 8,334 6.24 52,004
2017-05-04 ZEN Zendesk, Inc. Sale 8,334 30.06 250,503
2017-04-15 ZEN Zendesk, Inc. Option Ex 431 .00 0
2017-03-15 ZEN Zendesk, Inc. Option Ex 432 .00 0
2017-02-15 ZEN Zendesk, Inc. Option Ex 431 .00 0
2017-02-09 ZEN Zendesk, Inc. Sale 5,000 28.45 142,230
2017-02-09 ZEN Zendesk, Inc. Option Ex 5,000 6.24 31,200
2017-01-15 ZEN Zendesk, Inc. Option Ex 431 .00 0
2016-12-15 ZEN Zendesk, Inc. Option Ex 432 .00 0
2016-11-15 ZEN Zendesk, Inc. Option Ex 430 .00 0
2016-11-03 ZEN Zendesk, Inc. Sale 6,120 23.00 140,772
2016-11-04 ZEN Zendesk, Inc. Option Ex 495 2.30 1,138
2016-11-03 ZEN Zendesk, Inc. Option Ex 6,120 2.30 14,075
2016-11-04 ZEN Zendesk, Inc. Sale 495 23.05 11,408
2016-10-15 ZEN Zendesk, Inc. Option Ex 432 .00 0
2016-10-06 ZEN Zendesk, Inc. Option Ex 10,000 4.27 42,699
2016-10-06 ZEN Zendesk, Inc. Sale 10,000 29.86 298,650
2016-09-15 ZEN Zendesk, Inc. Option Ex 431 .00 0
2016-09-13 ZEN Zendesk, Inc. Sale 10,000 29.50 295,040
2016-09-13 ZEN Zendesk, Inc. Option Ex 10,000 4.27 42,699
2016-08-19 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2016-08-19 ZEN Zendesk, Inc. Sale 5,000 30.29 151,465
2016-08-15 ZEN Zendesk, Inc. Option Ex 431 .00 0
2016-08-04 ZEN Zendesk, Inc. Option Ex 10,000 4.27 42,699
2016-08-04 ZEN Zendesk, Inc. Sale 10,000 28.11 281,140
2016-07-15 ZEN Zendesk, Inc. Option Ex 432 .00 0
2016-06-15 ZEN Zendesk, Inc. Option Ex 430 .00 0
2016-05-18 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2016-05-18 ZEN Zendesk, Inc. Sale 5,000 23.59 117,955
2016-05-15 ZEN Zendesk, Inc. Option Ex 236 .00 0
2016-04-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2016-04-18 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2016-04-18 ZEN Zendesk, Inc. Sale 5,000 21.97 109,850
2016-03-18 ZEN Zendesk, Inc. Sale 5,000 20.01 100,045
2016-03-18 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2016-03-15 ZEN Zendesk, Inc. Option Ex 236 .00 0
2016-02-17 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2016-02-17 ZEN Zendesk, Inc. Sale 5,000 16.43 82,135
2016-01-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2015-12-15 ZEN Zendesk, Inc. Option Ex 236 .00 0
2015-12-11 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2015-12-11 ZEN Zendesk, Inc. Sale 5,000 26.53 132,645
2015-11-17 ZEN Zendesk, Inc. Option Ex 1,639 6.24 10,227
2015-11-18 ZEN Zendesk, Inc. Option Ex 3,661 6.24 22,844
2015-11-17 ZEN Zendesk, Inc. Sale 1,639 24.00 39,336
2015-11-18 ZEN Zendesk, Inc. Sale 3,661 24.42 89,412
2015-11-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2015-11-11 ZEN Zendesk, Inc. Sale 13,800 23.91 330,027
2015-11-11 ZEN Zendesk, Inc. Option Ex 13,800 4.27 58,925
2015-11-04 ZEN Zendesk, Inc. Option Ex 1,800 15.12 27,225
2015-10-15 ZEN Zendesk, Inc. Option Ex 236 .00 0
2015-10-12 ZEN Zendesk, Inc. Sale 5,000 20.82 104,075
2015-10-12 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2015-09-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2015-09-10 ZEN Zendesk, Inc. Option Ex 5,000 2.30 11,500
2015-09-10 ZEN Zendesk, Inc. Sale 5,000 21.33 106,655
2015-08-18 ZEN Zendesk, Inc. Option Ex 8,585 2.30 19,745
2015-08-18 ZEN Zendesk, Inc. Sale 8,585 20.64 177,194
2015-08-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2015-07-21 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-07-21 ZEN Zendesk, Inc. Sale 9,220 21.28 196,201
2015-07-15 ZEN Zendesk, Inc. Option Ex 236 .00 0
2015-07-07 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-07-07 ZEN Zendesk, Inc. Sale 9,220 21.07 194,265
2015-06-23 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-06-23 ZEN Zendesk, Inc. Sale 9,220 24.09 222,109
2015-06-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2015-06-09 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-06-09 ZEN Zendesk, Inc. Sale 9,220 23.17 213,627
2015-05-26 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-05-26 ZEN Zendesk, Inc. Sale 9,220 22.24 205,052
2015-05-19 ZEN Zendesk, Inc. Sale 2,645 22.08 58,401
2015-05-15 ZEN Zendesk, Inc. Option Ex 236 .00 0
2015-05-12 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-05-12 ZEN Zendesk, Inc. Sale 9,220 22.23 204,923
2015-04-28 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-04-28 ZEN Zendesk, Inc. Sale 9,220 22.97 211,783
2015-04-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2015-04-14 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-04-14 ZEN Zendesk, Inc. Sale 9,220 22.43 206,813
2015-03-31 ZEN Zendesk, Inc. Sale 9,220 22.60 208,408
2015-03-31 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-03-15 ZEN Zendesk, Inc. Option Ex 235 .00 0
2015-03-17 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-03-17 ZEN Zendesk, Inc. Sale 9,220 22.10 203,798
2015-03-03 ZEN Zendesk, Inc. Sale 9,220 23.38 215,563
2015-03-03 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-02-17 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-02-17 ZEN Zendesk, Inc. Sale 9,220 25.00 230,500
2015-02-03 ZEN Zendesk, Inc. Sale 9,220 23.32 215,010
2015-02-03 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-01-20 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2015-01-20 ZEN Zendesk, Inc. Sale 9,220 24.22 223,326
2015-01-06 ZEN Zendesk, Inc. Sale 9,220 24.22 223,345
2015-01-06 ZEN Zendesk, Inc. Option Ex 9,220 2.30 21,206
2014-12-23 ZEN Zendesk, Inc. Option Ex 23,500 2.30 54,049
2014-12-23 ZEN Zendesk, Inc. Sale 23,500 24.66 579,463
2014-12-09 ZEN Zendesk, Inc. Option Ex 23,500 2.30 54,049
2014-12-09 ZEN Zendesk, Inc. Sale 23,500 24.06 565,410
2014-11-25 ZEN Zendesk, Inc. Option Ex 23,500 2.30 54,049
2014-11-25 ZEN Zendesk, Inc. Sale 23,500 24.10 566,373
2014-11-19 ZEN Zendesk, Inc. Sale 2,777 24.20 67,203
2014-11-11 ZEN Zendesk, Inc. Sale 23,500 23.71 557,185
2014-11-11 ZEN Zendesk, Inc. Option Ex 23,500 2.30 54,049

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Geschke John (CLO and SVP Administration of Zendesk, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.