Insider Trading History of Geschke John

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Geschke John since 2014. This trader's CIK number is 1601008. At the time of last reporting, Geschke John was the Chief of Staff of Zendesk, Inc.. (stock ticker symbol ZEN). Also see all insider trading activities at Zendesk, Inc..

Yearly summary of insider trading at Zendesk, Inc. (ZEN) by Geschke John

		Insider Buying		Insider Sales		Option Exercises
Year	Symbol	Shares	Value	Shares	Value	Shares	Value
2022	ZEN	0	$0	13,800	$1,612,720	30,518	$476,388
2021	ZEN	0	$0	29,900	$4,057,406	44,038	$772,170
2020	ZEN	0	$0	55,061	$5,246,484	70,139	$1,345,572
2019	ZEN	0	$0	67,395	$5,298,150	77,430	$1,023,063
2018	ZEN	0	$0	71,166	$3,676,723	83,803	$511,414
2017	ZEN	0	$0	88,334	$2,855,463	94,908	$632,876
2016	ZEN	0	$0	61,615	$1,588,460	65,575	$200,810
2015	ZEN	0	$0	183,630	$4,212,468	185,139	$491,556
2014	ZEN	0	$0	96,777	$2,335,634	94,000	$216,196

Insider trading of Zendesk, Inc. (ZEN) by Geschke John

Trade Date	Symbol	Trade Type	Shares	Price ($)	Value ($)
2022-11-04	ZEN	Option Ex	1,327	.00	0
2022-11-04	ZEN	Option Ex	1,327	.00	0
2022-11-04	ZEN	Option Ex	1,327	.00	0
2022-10-15	ZEN	Option Ex	1,327	.00	0
2022-09-15	ZEN	Option Ex	1,327	.00	0
2022-08-15	ZEN	Option Ex	1,328	.00	0
2022-07-15	ZEN	Option Ex	1,326	.00	0
2022-06-15	ZEN	Option Ex	1,328	.00	0
2022-05-15	ZEN	Option Ex	1,327	.00	0
2022-04-15	ZEN	Option Ex	1,326	.00	0
2022-04-11	ZEN	Sale	3,000	122.81	368,424
2022-04-11	ZEN	Option Ex	3,000	38.50	115,500
2022-03-15	ZEN	Option Ex	1,326	.00	0
2022-03-11	ZEN	Sale	3,000	116.53	349,602
2022-03-11	ZEN	Option Ex	3,000	38.50	115,500
2022-02-15	ZEN	Option Ex	869	.00	0
2022-02-14	ZEN	Option Ex	3,000	38.50	115,500
2022-02-14	ZEN	Sale	3,000	115.46	346,371
2022-02-10	ZEN	Option Ex	4,800	27.06	129,888
2022-02-10	ZEN	Sale	4,800	114.23	548,323
2022-01-15	ZEN	Option Ex	1,253	.00	0
2021-12-15	ZEN	Option Ex	1,253	.00	0
2021-11-15	ZEN	Option Ex	1,252	.00	0
2021-10-15	ZEN	Option Ex	1,253	.00	0
2021-10-12	ZEN	Option Ex	3,000	27.06	81,180
2021-10-12	ZEN	Sale	3,000	112.84	338,532
2021-09-15	ZEN	Option Ex	1,253	.00	0
2021-09-07	ZEN	Sale	3,000	123.21	369,621
2021-09-07	ZEN	Option Ex	3,000	27.06	81,180
2021-08-15	ZEN	Option Ex	1,253	.00	0
2021-08-10	ZEN	Option Ex	3,000	27.06	81,180
2021-08-10	ZEN	Sale	3,000	126.08	378,246
2021-07-15	ZEN	Option Ex	1,253	.00	0
2021-07-06	ZEN	Sale	3,000	147.86	443,582
2021-07-06	ZEN	Option Ex	3,000	27.06	81,180
2021-06-15	ZEN	Option Ex	1,252	.00	0
2021-05-15	ZEN	Option Ex	1,454	.00	0
2021-05-11	ZEN	Option Ex	3,000	27.06	81,180
2021-05-11	ZEN	Sale	3,000	133.95	401,838
2021-04-13	ZEN	Option Ex	3,000	27.06	81,180
2021-04-13	ZEN	Sale	3,000	149.45	448,362
2021-03-15	ZEN	Option Ex	1,452	.00	0
2021-03-09	ZEN	Option Ex	3,400	25.25	85,850
2021-03-09	ZEN	Sale	3,400	131.21	446,114
2021-02-15	ZEN	Option Ex	1,233	.00	0
2021-02-09	ZEN	Option Ex	3,000	23.44	70,320
2021-02-09	ZEN	Sale	3,000	155.68	467,052
2021-01-15	ZEN	Option Ex	1,230	.00	0
2021-01-05	ZEN	Sale	5,500	138.92	764,059
2021-01-05	ZEN	Option Ex	5,500	23.44	128,920
2020-12-15	ZEN	Option Ex	1,232	.00	0
2020-12-03	ZEN	Option Ex	5,500	23.44	128,920
2020-12-03	ZEN	Sale	5,500	132.30	727,650
2020-11-15	ZEN	Option Ex	1,231	.00	0
2020-11-02	ZEN	Option Ex	5,500	23.44	128,920
2020-11-02	ZEN	Sale	5,500	110.29	606,573
2020-10-15	ZEN	Option Ex	1,232	.00	0
2020-10-02	ZEN	Option Ex	5,500	24.11	132,577
2020-10-02	ZEN	Sale	5,500	102.68	564,762
2020-09-15	ZEN	Option Ex	1,232	.00	0
2020-09-02	ZEN	Option Ex	5,500	24.77	136,235
2020-09-02	ZEN	Sale	5,500	103.62	569,910
2020-08-15	ZEN	Option Ex	1,230	.00	0
2020-08-03	ZEN	Sale	5,500	91.35	502,403
2020-08-03	ZEN	Option Ex	5,500	24.77	136,235
2020-07-15	ZEN	Option Ex	1,232	.00	0
2020-07-02	ZEN	Option Ex	5,500	24.77	136,235
2020-07-02	ZEN	Sale	5,500	90.00	495,000
2020-06-15	ZEN	Option Ex	1,232	.00	0
2020-06-02	ZEN	Option Ex	5,500	24.77	136,235
2020-06-02	ZEN	Sale	5,500	86.90	477,972
2020-05-15	ZEN	Option Ex	1,427	.00	0
2020-05-11	ZEN	Option Ex	5,500	24.77	136,235
2020-05-11	ZEN	Sale	5,500	78.00	429,000
2020-04-15	ZEN	Option Ex	1,428	.00	0
2020-03-15	ZEN	Option Ex	1,426	.00	0
2020-02-15	ZEN	Option Ex	1,089	.00	0
2020-01-15	ZEN	Option Ex	1,087	.00	0
2020-01-02	ZEN	Option Ex	5,361	24.77	132,791
2020-01-02	ZEN	Sale	5,361	79.44	425,867
2020-01-03	ZEN	Option Ex	5,700	24.77	141,189
2020-01-03	ZEN	Sale	5,700	78.48	447,347
2019-12-27	ZEN	Option Ex	239	24.77	5,920
2019-12-27	ZEN	Sale	239	78.12	18,669
2019-12-23	ZEN	Sale	100	78.00	7,800
2019-12-23	ZEN	Option Ex	100	24.77	2,477
2019-12-15	ZEN	Option Ex	1,087	.00	0
2019-11-20	ZEN	Sale	11,320	78.73	891,280
2019-11-19	ZEN	Sale	80	78.01	6,240
2019-11-20	ZEN	Option Ex	11,320	24.77	280,396
2019-11-19	ZEN	Option Ex	80	24.77	1,981
2019-11-15	ZEN	Option Ex	1,087	.00	0
2019-10-15	ZEN	Option Ex	1,088	.00	0
2019-09-15	ZEN	Option Ex	1,088	.00	0
2019-09-05	ZEN	Option Ex	5,700	24.77	141,189
2019-09-05	ZEN	Sale	5,700	79.50	453,144
2019-08-23	ZEN	Option Ex	5,500	23.44	128,920
2019-08-23	ZEN	Sale	5,500	80.07	440,384
2019-08-15	ZEN	Option Ex	1,087	.00	0
2019-08-08	ZEN	Option Ex	5,700	24.77	141,189
2019-08-08	ZEN	Sale	5,700	78.27	446,161
2019-07-15	ZEN	Option Ex	1,088	.00	0
2019-07-11	ZEN	Sale	1,500	94.15	141,228
2019-07-11	ZEN	Option Ex	1,500	9.52	14,280
2019-06-15	ZEN	Option Ex	1,088	.00	0
2019-06-12	ZEN	Sale	2,500	87.86	219,637
2019-06-12	ZEN	Option Ex	2,500	9.52	23,800
2019-06-10	ZEN	Sale	915	92.12	84,293
2019-05-15	ZEN	Option Ex	1,086	.00	0
2019-05-10	ZEN	Option Ex	2,500	9.52	23,800
2019-05-10	ZEN	Sale	2,500	87.60	218,990
2019-04-15	ZEN	Sale	2,500	83.67	209,177
2019-04-15	ZEN	Option Ex	3,588	1.90	6,831
2019-03-15	ZEN	Option Ex	1,087	.00	0
2019-03-13	ZEN	Sale	2,500	82.28	205,710
2019-03-13	ZEN	Option Ex	2,500	9.52	23,800
2019-02-20	ZEN	Sale	19,341	78.46	1,517,552
2019-02-20	ZEN	Option Ex	17,000	9.52	161,840
2019-02-15	ZEN	Option Ex	1,324	.00	0
2019-01-15	ZEN	Option Ex	1,093	.00	0
2019-01-10	ZEN	Option Ex	7,000	9.52	66,640
2019-01-10	ZEN	Sale	7,000	62.55	437,885
2018-12-15	ZEN	Option Ex	1,091	.00	0
2018-12-12	ZEN	Option Ex	7,000	9.52	66,640
2018-12-12	ZEN	Sale	7,000	61.45	430,164
2018-11-15	ZEN	Option Ex	1,091	.00	0
2018-11-13	ZEN	Option Ex	7,000	9.52	66,640
2018-11-13	ZEN	Sale	7,000	53.31	373,177
2018-10-15	ZEN	Option Ex	6,092	1.59	9,668
2018-10-15	ZEN	Sale	5,000	60.74	303,705
2018-09-17	ZEN	Option Ex	5,000	9.52	47,600
2018-09-17	ZEN	Sale	5,000	69.71	348,564
2018-09-15	ZEN	Option Ex	1,092	.00	0
2018-08-15	ZEN	Sale	7,666	62.44	478,680
2018-08-15	ZEN	Option Ex	8,758	2.25	19,714
2018-07-15	ZEN	Option Ex	1,091	.00	0
2018-06-15	ZEN	Option Ex	6,092	2.25	13,713
2018-06-15	ZEN	Sale	5,000	59.02	295,115
2018-06-01	ZEN	Option Ex	4,500	9.52	42,840
2018-06-01	ZEN	Sale	4,500	56.56	254,533
2018-05-15	ZEN	Option Ex	1,091	.00	0
2018-04-15	ZEN	Option Ex	1,092	.00	0
2018-04-16	ZEN	Option Ex	5,000	7.88	39,400
2018-04-16	ZEN	Sale	5,000	49.03	245,159
2018-03-15	ZEN	Option Ex	1,092	.00	0
2018-02-13	ZEN	Sale	5,000	40.91	204,555
2018-02-15	ZEN	Option Ex	1,090	.00	0
2018-02-13	ZEN	Option Ex	5,000	9.52	47,600
2018-02-09	ZEN	Option Ex	5,000	6.24	31,200
2018-02-09	ZEN	Sale	5,000	38.78	193,900
2018-01-16	ZEN	Option Ex	5,000	9.52	47,600
2018-01-15	ZEN	Option Ex	631	.00	0
2018-01-12	ZEN	Sale	5,000	36.95	184,740
2018-01-12	ZEN	Option Ex	5,000	6.24	31,200
2018-01-16	ZEN	Sale	5,000	37.80	189,025
2018-01-08	ZEN	Sale	1,493	35.17	52,510
2018-01-08	ZEN	Option Ex	1,493	9.52	14,213
2018-01-05	ZEN	Option Ex	320	9.52	3,046
2018-01-03	ZEN	Sale	787	35.05	27,584
2018-01-04	ZEN	Option Ex	2,400	9.52	22,848
2018-01-03	ZEN	Option Ex	787	9.52	7,492
2018-01-05	ZEN	Sale	320	35.00	11,200
2018-01-04	ZEN	Sale	2,400	35.05	84,112
2017-12-13	ZEN	Option Ex	5,000	6.24	31,200
2017-12-13	ZEN	Sale	5,000	34.23	171,130
2017-12-15	ZEN	Option Ex	632	.00	0
2017-11-15	ZEN	Option Ex	630	.00	0
2017-11-14	ZEN	Sale	273	35.00	9,555
2017-11-13	ZEN	Sale	9,727	35.09	341,349
2017-11-13	ZEN	Option Ex	10,000	7.88	78,800
2017-11-08	ZEN	Option Ex	4,800	9.52	45,696
2017-11-08	ZEN	Sale	4,800	35.46	170,198
2017-11-02	ZEN	Option Ex	30,200	7.88	237,976
2017-11-02	ZEN	Sale	30,200	34.39	1,038,698
2017-10-15	ZEN	Option Ex	632	.00	0
2017-09-15	ZEN	Option Ex	631	.00	0
2017-09-11	ZEN	Sale	10,000	29.33	293,310
2017-09-11	ZEN	Option Ex	10,000	6.24	62,400
2017-08-15	ZEN	Option Ex	632	.00	0
2017-07-19	ZEN	Sale	5,000	29.02	145,110
2017-07-19	ZEN	Option Ex	5,000	6.24	31,200
2017-07-15	ZEN	Option Ex	631	.00	0
2017-06-23	ZEN	Option Ex	10,000	6.24	62,400
2017-06-23	ZEN	Sale	10,000	29.34	293,380
2017-06-15	ZEN	Option Ex	630	.00	0
2017-05-15	ZEN	Option Ex	431	.00	0
2017-05-04	ZEN	Option Ex	8,334	6.24	52,004
2017-05-04	ZEN	Sale	8,334	30.06	250,503
2017-04-15	ZEN	Option Ex	431	.00	0
2017-03-15	ZEN	Option Ex	432	.00	0
2017-02-15	ZEN	Option Ex	431	.00	0
2017-02-09	ZEN	Sale	5,000	28.45	142,230
2017-02-09	ZEN	Option Ex	5,000	6.24	31,200
2017-01-15	ZEN	Option Ex	431	.00	0
2016-12-15	ZEN	Option Ex	432	.00	0
2016-11-15	ZEN	Option Ex	430	.00	0
2016-11-03	ZEN	Sale	6,120	23.00	140,772
2016-11-04	ZEN	Option Ex	495	2.30	1,138
2016-11-03	ZEN	Option Ex	6,120	2.30	14,075
2016-11-04	ZEN	Sale	495	23.05	11,408
2016-10-15	ZEN	Option Ex	432	.00	0
2016-10-06	ZEN	Sale	10,000	29.86	298,650
2016-10-06	ZEN	Option Ex	10,000	4.27	42,699
2016-09-15	ZEN	Option Ex	431	.00	0
2016-09-13	ZEN	Option Ex	10,000	4.27	42,699
2016-09-13	ZEN	Sale	10,000	29.50	295,040
2016-08-19	ZEN	Option Ex	5,000	2.30	11,500
2016-08-19	ZEN	Sale	5,000	30.29	151,465
2016-08-15	ZEN	Option Ex	431	.00	0
2016-08-04	ZEN	Option Ex	10,000	4.27	42,699
2016-08-04	ZEN	Sale	10,000	28.11	281,140
2016-07-15	ZEN	Option Ex	432	.00	0
2016-06-15	ZEN	Option Ex	430	.00	0
2016-05-18	ZEN	Sale	5,000	23.59	117,955
2016-05-18	ZEN	Option Ex	5,000	2.30	11,500
2016-05-15	ZEN	Option Ex	236	.00	0
2016-04-15	ZEN	Option Ex	235	.00	0
2016-04-18	ZEN	Option Ex	5,000	2.30	11,500
2016-04-18	ZEN	Sale	5,000	21.97	109,850
2016-03-18	ZEN	Sale	5,000	20.01	100,045
2016-03-18	ZEN	Option Ex	5,000	2.30	11,500
2016-03-15	ZEN	Option Ex	236	.00	0
2016-02-17	ZEN	Option Ex	5,000	2.30	11,500
2016-02-17	ZEN	Sale	5,000	16.43	82,135
2016-01-15	ZEN	Option Ex	235	.00	0
2015-12-15	ZEN	Option Ex	236	.00	0
2015-12-11	ZEN	Option Ex	5,000	2.30	11,500
2015-12-11	ZEN	Sale	5,000	26.53	132,645
2015-11-18	ZEN	Sale	3,661	24.42	89,412
2015-11-17	ZEN	Sale	1,639	24.00	39,336
2015-11-18	ZEN	Option Ex	3,661	6.24	22,844
2015-11-17	ZEN	Option Ex	1,639	6.24	10,227
2015-11-15	ZEN	Option Ex	235	.00	0
2015-11-11	ZEN	Option Ex	13,800	4.27	58,925
2015-11-11	ZEN	Sale	13,800	23.91	330,027
2015-11-04	ZEN	Option Ex	1,800	15.12	27,225
2015-10-15	ZEN	Option Ex	236	.00	0
2015-10-12	ZEN	Option Ex	5,000	2.30	11,500
2015-10-12	ZEN	Sale	5,000	20.82	104,075
2015-09-15	ZEN	Option Ex	235	.00	0
2015-09-10	ZEN	Sale	5,000	21.33	106,655
2015-09-10	ZEN	Option Ex	5,000	2.30	11,500
2015-08-18	ZEN	Option Ex	8,585	2.30	19,745
2015-08-18	ZEN	Sale	8,585	20.64	177,194
2015-08-15	ZEN	Option Ex	235	.00	0
2015-07-21	ZEN	Option Ex	9,220	2.30	21,206
2015-07-21	ZEN	Sale	9,220	21.28	196,201
2015-07-15	ZEN	Option Ex	236	.00	0
2015-07-07	ZEN	Sale	9,220	21.07	194,265
2015-07-07	ZEN	Option Ex	9,220	2.30	21,206
2015-06-23	ZEN	Option Ex	9,220	2.30	21,206
2015-06-23	ZEN	Sale	9,220	24.09	222,109
2015-06-15	ZEN	Option Ex	235	.00	0
2015-06-09	ZEN	Option Ex	9,220	2.30	21,206
2015-06-09	ZEN	Sale	9,220	23.17	213,627
2015-05-26	ZEN	Sale	9,220	22.24	205,052
2015-05-26	ZEN	Option Ex	9,220	2.30	21,206
2015-05-19	ZEN	Sale	2,645	22.08	58,401
2015-05-15	ZEN	Option Ex	236	.00	0
2015-05-12	ZEN	Option Ex	9,220	2.30	21,206
2015-05-12	ZEN	Sale	9,220	22.23	204,923
2015-04-28	ZEN	Sale	9,220	22.97	211,783
2015-04-28	ZEN	Option Ex	9,220	2.30	21,206
2015-04-15	ZEN	Option Ex	235	.00	0
2015-04-14	ZEN	Option Ex	9,220	2.30	21,206
2015-04-14	ZEN	Sale	9,220	22.43	206,813
2015-03-31	ZEN	Option Ex	9,220	2.30	21,206
2015-03-31	ZEN	Sale	9,220	22.60	208,408
2015-03-17	ZEN	Sale	9,220	22.10	203,798
2015-03-17	ZEN	Option Ex	9,220	2.30	21,206
2015-03-15	ZEN	Option Ex	235	.00	0
2015-03-03	ZEN	Option Ex	9,220	2.30	21,206
2015-03-03	ZEN	Sale	9,220	23.38	215,563
2015-02-17	ZEN	Option Ex	9,220	2.30	21,206
2015-02-17	ZEN	Sale	9,220	25.00	230,500
2015-02-03	ZEN	Option Ex	9,220	2.30	21,206
2015-02-03	ZEN	Sale	9,220	23.32	215,010
2015-01-20	ZEN	Option Ex	9,220	2.30	21,206
2015-01-20	ZEN	Sale	9,220	24.22	223,326
2015-01-06	ZEN	Sale	9,220	24.22	223,345
2015-01-06	ZEN	Option Ex	9,220	2.30	21,206
2014-12-23	ZEN	Option Ex	23,500	2.30	54,049
2014-12-23	ZEN	Sale	23,500	24.66	579,463
2014-12-09	ZEN	Sale	23,500	24.06	565,410
2014-12-09	ZEN	Option Ex	23,500	2.30	54,049
2014-11-25	ZEN	Option Ex	23,500	2.30	54,049
2014-11-25	ZEN	Sale	23,500	24.10	566,373
2014-11-19	ZEN	Sale	2,777	24.20	67,203
2014-11-11	ZEN	Option Ex	23,500	2.30	54,049
2014-11-11	ZEN	Sale	23,500	23.71	557,185

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 (Chief of Staff of Zendesk, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.

▪ Real-time Insider Trading

▪ Insider Officer Cluster Trading

▪ Top Officer Buys of the Week

▪ Top Officer Buys of the Month