Insider · CIK 0001605957

Adrian McDermott

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $0 · 0sales $26.0M · 89net −$26.0M

Reported trades — common stock

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
May 4, 2016 MForm 4 →	May 6, 5:15 pm EDT	Zendesk, Inc.ZEN	44,627	$6.41	$286,016	129,254	—	plan?
Apr 20, 2016 SForm 4 →	Apr 22, 4:39 pm EDT	Zendesk, Inc.ZEN	1,625	$22.18	$36,048	84,627	−1.88%	plan?
Apr 15, 2016 FMForm 4 →	Apr 19, 6:51 pm EDT	Zendesk, Inc.ZEN	3,583	$21.26	$20,814	86,252	—	plan?
Mar 18, 2016 SForm 4 →	Mar 22, 5:39 pm EDT	Zendesk, Inc.ZEN	1,630	$20.00	$32,607	84,627	−1.89%	plan?
Mar 15, 2016 FMForm 4 →	Mar 17, 6:14 pm EDT	Zendesk, Inc.ZEN	3,578	$20.06	$19,538	86,257	—	plan?
Feb 24, 2016 SForm 4 →	Feb 26, 5:46 pm EST	Zendesk, Inc.ZEN	871	$17.21	$14,990	84,627	−1.02%	plan?
Feb 22, 2016 SForm 4 →	Feb 24, 5:22 pm EST	Zendesk, Inc.ZEN	3,035	$17.14	$52,020	85,498	−3.43%	plan?
Feb 18, 2016 AFForm 4 →	Feb 22, 9:45 pm EST	Zendesk, Inc.ZEN	1,881	$16.96	$8,565	88,533	—	plan?
Feb 15, 2016 FMForm 4 →	Feb 16, 9:30 pm EST	Zendesk, Inc.ZEN	3,636	$15.83	$16,337	87,662	—	plan?
Jan 15, 2016 FMForm 4 →	Jan 19, 5:43 pm EST	Zendesk, Inc.ZEN	3,745	$23.94	$27,316	86,090	—	plan?
Dec 18, 2015 SForm 4 →	Dec 21, 6:02 pm EST	Zendesk, Inc.ZEN	1,625	$25.95	$42,169	84,627	−1.88%	plan?
Dec 16, 2015 SForm 4 →	Dec 16, 8:15 pm EST	Zendesk, Inc.ZEN	21,440	$25.97	$556,799	86,252	−19.9%	plan?
Dec 15, 2015 FMForm 4 →	Dec 16, 8:15 pm EST	Zendesk, Inc.ZEN	25,023	$1.25	$27,940	107,692	—	plan?
Dec 1, 2015 SForm 4 →	Dec 3, 9:32 am EST	Zendesk, Inc.ZEN	1,252	$23.65	$29,610	84,627	−1.46%	plan?
Dec 1, 2015 MForm 4 →	Dec 3, 9:32 am EST	Zendesk, Inc.ZEN	1,252	$7.34	$9,184	85,879	—	plan?
Nov 19, 2015 SForm 4/A →	Dec 2, 9:59 pm EST	Zendesk, Inc.ZEN	10,842	$25.00	$271,050	84,627	−11.4%	plan?
Nov 19, 2015 MForm 4/A →	Dec 2, 9:59 pm EST	Zendesk, Inc.ZEN	10,842	$7.25	$78,619	95,469	—	plan?
Nov 19, 2015 SForm 4 →	Nov 19, 8:56 pm EST	Zendesk, Inc.ZEN	1,625	$25.30	$41,112	84,627	−1.88%	plan? amended
Nov 13, 2015 SForm 4 →	Nov 17, 7:00 pm EST	Zendesk, Inc.ZEN	21,440	$22.93	$491,585	84,627	−20.2%	plan?
Nov 13, 2015 FMForm 4 →	Nov 17, 7:00 pm EST	Zendesk, Inc.ZEN	25,023	$1.09	$24,523	86,252	—	plan?
Oct 20, 2015 SForm 4 →	Oct 21, 6:22 pm EDT	Zendesk, Inc.ZEN	1,626	$20.28	$32,975	84,627	−1.89%	plan?
Oct 16, 2015 SForm 4 →	Oct 16, 7:43 pm EDT	Zendesk, Inc.ZEN	21,440	$20.30	$435,168	86,253	−19.9%	plan?
Oct 15, 2015 FMForm 4 →	Oct 16, 7:43 pm EDT	Zendesk, Inc.ZEN	25,024	$0.958	$21,478	107,693	—	plan?
Sep 18, 2015 SForm 4 →	Sep 21, 9:42 pm EDT	Zendesk, Inc.ZEN	1,625	$21.57	$35,051	84,627	−1.88%	plan?
Sep 15, 2015 SForm 4 →	Sep 16, 6:27 pm EDT	Zendesk, Inc.ZEN	21,440	$21.58	$462,611	86,252	−19.9%	plan?
Sep 15, 2015 FMForm 4 →	Sep 16, 6:27 pm EDT	Zendesk, Inc.ZEN	25,023	$1.05	$23,515	107,692	—	plan?
Aug 20, 2015 SForm 4 →	Aug 21, 5:49 pm EDT	Zendesk, Inc.ZEN	1,625	$20.75	$33,719	84,627	−1.88%	plan?
Aug 15, 2015 FMForm 4/A →	Aug 18, 5:18 pm EDT	Zendesk, Inc.ZEN	3,583	$20.68	$20,246	86,252	—	plan?
Aug 15, 2015 FMForm 4 →	Aug 18, 5:09 pm EDT	Zendesk, Inc.ZEN	3,583	$20.68	$20,246	86,252	—	plan?
Aug 12, 2015 SForm 4 →	Aug 13, 5:42 pm EDT	Zendesk, Inc.ZEN	32,360	$20.71	$670,247	84,627	−27.7%	plan?
Aug 12, 2015 MForm 4 →	Aug 13, 5:42 pm EDT	Zendesk, Inc.ZEN	21,440	$0.11	$2,358	116,987	—	plan?
Aug 6, 2015 AFForm 4 →	Aug 10, 4:25 pm EDT	Zendesk, Inc.ZEN	4,080	$23.24	$25,913	95,547	—	plan?
Jul 15, 2015 FMForm 4 →	Jul 17, 7:48 pm EDT	Zendesk, Inc.ZEN	3,583	$21.46	$21,009	93,697	—	plan?
Jun 22, 2015 SForm 4 →	Jun 23, 7:06 pm EDT	Zendesk, Inc.ZEN	7,294	$24.26	$176,935	92,072	−7.34%	plan?
Jun 22, 2015 MForm 4 →	Jun 23, 7:06 pm EDT	Zendesk, Inc.ZEN	7,294	$0.11	$802	99,366	—	plan?
Jun 15, 2015 SForm 4 →	Jun 17, 8:26 pm EDT	Zendesk, Inc.ZEN	7,294	$22.80	$166,276	90,447	−7.46%	plan?
Jun 15, 2015 FMForm 4 →	Jun 17, 8:26 pm EDT	Zendesk, Inc.ZEN	10,877	$2.81	$23,212	92,072	—	plan?
Jun 8, 2015 SForm 4 →	Jun 10, 5:32 pm EDT	Zendesk, Inc.ZEN	7,294	$23.25	$169,602	90,447	−7.46%	plan?
Jun 8, 2015 MForm 4 →	Jun 10, 5:32 pm EDT	Zendesk, Inc.ZEN	7,294	$0.11	$802	97,741	—	plan?
Jun 1, 2015 SForm 4 →	Jun 3, 8:53 pm EDT	Zendesk, Inc.ZEN	7,294	$22.62	$164,979	90,447	−7.46%	plan?
Jun 1, 2015 MForm 4 →	Jun 3, 8:53 pm EDT	Zendesk, Inc.ZEN	7,294	$0.11	$802	97,741	—	plan?
May 26, 2015 SForm 4 →	May 28, 8:09 pm EDT	Zendesk, Inc.ZEN	7,294	$22.65	$165,181	90,447	−7.46%	plan?
May 26, 2015 MForm 4 →	May 28, 8:09 pm EDT	Zendesk, Inc.ZEN	7,294	$0.11	$802	97,741	—	plan?
May 18, 2015 SForm 4 →	May 20, 8:07 pm EDT	Zendesk, Inc.ZEN	9,116	$21.75	$198,239	90,447	−9.16%	plan?
May 18, 2015 MForm 4 →	May 20, 8:07 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	99,563	—	plan?
May 15, 2015 FMForm 4 →	May 18, 6:14 pm EDT	Zendesk, Inc.ZEN	3,583	$22.59	$22,116	90,447	—	plan?
May 11, 2015 SForm 4 →	May 11, 7:50 pm EDT	Zendesk, Inc.ZEN	9,116	$23.28	$212,232	86,044	−9.58%	plan?
May 11, 2015 MForm 4 →	May 11, 7:50 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	95,160	—	plan?
May 4, 2015 SForm 4 →	May 6, 5:35 pm EDT	Zendesk, Inc.ZEN	9,116	$22.38	$203,977	86,044	−9.58%	plan?
May 4, 2015 MForm 4 →	May 6, 5:35 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	95,160	—	plan?
Apr 27, 2015 SForm 4 →	Apr 29, 6:42 pm EDT	Zendesk, Inc.ZEN	9,116	$23.31	$212,532	86,044	−9.58%	plan?
Apr 27, 2015 MForm 4 →	Apr 29, 6:42 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	95,160	—	plan?
Apr 20, 2015 SForm 4 →	Apr 21, 9:36 pm EDT	Zendesk, Inc.ZEN	9,116	$23.43	$213,628	86,044	−9.58%	plan?
Apr 20, 2015 MForm 4 →	Apr 21, 9:36 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	95,160	—	plan?
Apr 15, 2015 FMForm 4 →	Apr 17, 7:15 pm EDT	Zendesk, Inc.ZEN	3,582	$22.48	$21,985	86,044	—	plan?
Apr 13, 2015 SForm 4 →	Apr 14, 8:41 pm EDT	Zendesk, Inc.ZEN	9,116	$22.73	$207,181	84,418	−9.75%	plan?
Apr 13, 2015 MForm 4 →	Apr 14, 8:41 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	93,534	—	plan?
Apr 6, 2015 SForm 4 →	Apr 8, 6:25 pm EDT	Zendesk, Inc.ZEN	9,116	$22.44	$204,603	84,418	−9.75%	plan?
Apr 6, 2015 MForm 4 →	Apr 8, 6:25 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	93,534	—	plan?
Mar 30, 2015 SForm 4 →	Apr 1, 7:37 pm EDT	Zendesk, Inc.ZEN	9,116	$22.69	$206,860	84,418	−9.75%	plan?
Mar 30, 2015 MForm 4 →	Apr 1, 7:37 pm EDT	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	93,534	—	plan?
Mar 23, 2015 SForm 4 →	Mar 25, 7:18 pm EDT	Zendesk, Inc.ZEN	7,294	$22.29	$162,613	84,418	−7.95%	plan?
Mar 23, 2015 MForm 4 →	Mar 25, 7:18 pm EDT	Zendesk, Inc.ZEN	7,294	$0.11	$802	91,712	—	plan?
Mar 16, 2015 SForm 4 →	Mar 17, 9:52 pm EDT	Zendesk, Inc.ZEN	7,294	$22.54	$164,408	84,418	−7.95%	plan?
Mar 15, 2015 FMForm 4 →	Mar 17, 9:52 pm EDT	Zendesk, Inc.ZEN	10,861	$2.73	$22,508	91,712	—	plan?
Mar 9, 2015 SForm 4 →	Mar 11, 6:45 pm EDT	Zendesk, Inc.ZEN	7,294	$22.83	$166,536	82,777	−8.10%	plan?
Mar 9, 2015 MForm 4 →	Mar 11, 6:45 pm EDT	Zendesk, Inc.ZEN	7,294	$0.11	$802	90,071	—	plan?
Mar 2, 2015 SForm 4 →	Mar 4, 7:53 pm EST	Zendesk, Inc.ZEN	7,294	$24.31	$177,334	82,777	−8.10%	plan?
Mar 2, 2015 MForm 4 →	Mar 4, 7:53 pm EST	Zendesk, Inc.ZEN	7,294	$0.11	$802	90,071	—	plan?
Feb 23, 2015 SForm 4 →	Feb 25, 7:15 pm EST	Zendesk, Inc.ZEN	7,294	$24.05	$175,436	82,777	−8.10%	plan?
Feb 23, 2015 MForm 4 →	Feb 25, 7:15 pm EST	Zendesk, Inc.ZEN	7,294	$0.11	$802	90,071	—	plan?
Feb 17, 2015 SForm 4 →	Feb 18, 6:14 pm EST	Zendesk, Inc.ZEN	9,116	$24.33	$221,754	82,777	−9.92%	plan?
Feb 17, 2015 MForm 4 →	Feb 18, 6:14 pm EST	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	91,893	—	plan?
Feb 9, 2015 SForm 4 →	Feb 11, 7:22 pm EST	Zendesk, Inc.ZEN	9,116	$25.27	$230,395	82,777	−9.92%	plan?
Feb 9, 2015 MForm 4 →	Feb 11, 7:22 pm EST	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	91,893	—	plan?
Feb 6, 2015 SForm 4 →	Feb 9, 9:36 pm EST	Zendesk, Inc.ZEN	1,250	$25.00	$31,250	82,777	−1.49%	plan?
Feb 6, 2015 MForm 4 →	Feb 9, 9:36 pm EST	Zendesk, Inc.ZEN	1,250	$7.33	$9,168	84,027	—	plan?
Feb 2, 2015 SForm 4 →	Feb 4, 8:19 pm EST	Zendesk, Inc.ZEN	9,116	$23.28	$212,251	82,777	−9.92%	plan?
Feb 2, 2015 MForm 4 →	Feb 4, 8:19 pm EST	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	91,893	—	plan?
Jan 26, 2015 SForm 4 →	Jan 28, 7:53 pm EST	Zendesk, Inc.ZEN	9,116	$24.55	$223,842	82,777	−9.92%	plan?
Jan 26, 2015 MForm 4 →	Jan 28, 7:53 pm EST	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	91,893	—	plan?
Jan 20, 2015 SForm 4 →	Jan 22, 4:51 pm EST	Zendesk, Inc.ZEN	9,116	$24.20	$220,604	82,777	−9.92%	plan?
Jan 20, 2015 MForm 4 →	Jan 22, 4:51 pm EST	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	91,893	—	plan?
Jan 12, 2015 SForm 4 →	Jan 14, 9:02 pm EST	Zendesk, Inc.ZEN	9,116	$24.62	$224,444	82,777	−9.92%	plan?
Jan 12, 2015 MForm 4 →	Jan 14, 9:02 pm EST	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	91,893	—	plan?
Jan 8, 2015 SForm 4 →	Jan 12, 4:43 pm EST	Zendesk, Inc.ZEN	13,991	$25.16	$352,040	82,777	−14.5%	plan?
Jan 8, 2015 MForm 4 →	Jan 12, 4:43 pm EST	Zendesk, Inc.ZEN	13,991	$1.12	$15,682	96,768	—	plan?
Jan 5, 2015 SForm 4 →	Jan 7, 5:27 pm EST	Zendesk, Inc.ZEN	9,116	$23.92	$218,085	82,777	−9.92%	plan?
Jan 5, 2015 MForm 4 →	Jan 7, 5:27 pm EST	Zendesk, Inc.ZEN	9,116	$0.11	$1,003	91,893	—	plan?

Reported trades — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Feb 15, 2019 MForm 4 →	Feb 19, 7:27 pm EST	Zendesk, Inc.ZEN	4,029	—	—	16,042	—
Feb 7, 2019 AForm 4 →	Feb 11, 4:37 pm EST	Zendesk, Inc.ZEN	72,600	—	—	24,200	—
Jan 15, 2019 MForm 4 →	Jan 17, 5:34 pm EST	Zendesk, Inc.ZEN	3,597	—	—	0	—
Dec 15, 2018 MForm 4 →	Dec 18, 7:27 pm EST	Zendesk, Inc.ZEN	3,597	—	—	76	—
Nov 15, 2018 MForm 4 →	Nov 16, 8:23 pm EST	Zendesk, Inc.ZEN	3,597	—	—	151	—
Oct 15, 2018 MForm 4 →	Oct 17, 6:25 pm EDT	Zendesk, Inc.ZEN	3,596	—	—	226	—
Sep 15, 2018 MForm 4 →	Sep 17, 8:41 pm EDT	Zendesk, Inc.ZEN	3,597	—	—	301	—
Aug 15, 2018 MForm 4 →	Aug 17, 5:09 pm EDT	Zendesk, Inc.ZEN	3,598	—	—	376	—
Jul 15, 2018 MForm 4 →	Jul 17, 5:36 pm EDT	Zendesk, Inc.ZEN	3,596	—	—	451	—
Jun 15, 2018 MForm 4 →	Jun 19, 4:28 pm EDT	Zendesk, Inc.ZEN	3,598	—	—	526	—
May 15, 2018 MForm 4 →	May 17, 4:17 pm EDT	Zendesk, Inc.ZEN	3,597	—	—	601	—
Apr 15, 2018 MForm 4 →	Apr 17, 7:25 pm EDT	Zendesk, Inc.ZEN	3,596	—	—	676	—
Mar 15, 2018 MForm 4 →	Mar 16, 7:54 pm EDT	Zendesk, Inc.ZEN	3,597	—	—	751	—
Feb 28, 2018 MForm 4 →	Mar 1, 6:52 pm EST	Zendesk, Inc.ZEN	40,000	—	—	89,330	—
Feb 14, 2018 MForm 4 →	Feb 15, 8:42 pm EST	Zendesk, Inc.ZEN	43,595	—	—	826	—
Feb 8, 2018 AMForm 4 →	Feb 12, 9:57 pm EST	Zendesk, Inc.ZEN	116,900	—	—	169,330	—
Jan 15, 2018 MForm 4 →	Jan 17, 8:25 pm EST	Zendesk, Inc.ZEN	3,063	—	—	9,334	—
Dec 15, 2017 MForm 4 →	Dec 15, 5:30 pm EST	Zendesk, Inc.ZEN	3,064	—	—	9,567	—
Nov 15, 2017 MForm 4 →	Nov 16, 8:09 pm EST	Zendesk, Inc.ZEN	3,063	—	—	9,801	—
Oct 15, 2017 MForm 4 →	Oct 16, 8:30 pm EDT	Zendesk, Inc.ZEN	3,064	—	—	10,034	—
Sep 15, 2017 MForm 4 →	Sep 18, 8:39 pm EDT	Zendesk, Inc.ZEN	3,064	—	—	10,267	—
Aug 15, 2017 MForm 4 →	Aug 15, 9:51 pm EDT	Zendesk, Inc.ZEN	3,063	—	—	10,501	—
Jul 15, 2017 MForm 4 →	Jul 18, 7:30 pm EDT	Zendesk, Inc.ZEN	3,063	—	—	10,734	—
Jun 15, 2017 MForm 4 →	Jun 16, 7:42 pm EDT	Zendesk, Inc.ZEN	3,063	—	—	10,967	—
May 15, 2017 MForm 4 →	May 16, 8:09 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	8,138	—
May 9, 2017 AForm 4 →	May 11, 7:01 pm EDT	Zendesk, Inc.ZEN	44,800	—	—	11,200	—
Apr 15, 2017 MForm 4 →	Apr 18, 9:29 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	8,364	—
Mar 15, 2017 MForm 4 →	Mar 17, 5:34 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	8,590	—
Mar 15, 2017 MForm 4 →	Mar 17, 5:33 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	8,590	—
Mar 15, 2017 MForm 4 →	Mar 17, 5:20 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	8,590	—
Feb 15, 2017 MForm 4 →	Feb 17, 4:33 pm EST	Zendesk, Inc.ZEN	2,831	—	—	8,816	—
Jan 15, 2017 MForm 4 →	Jan 18, 7:38 pm EST	Zendesk, Inc.ZEN	2,830	—	—	9,042	—
Dec 15, 2016 MForm 4 →	Dec 16, 7:32 pm EST	Zendesk, Inc.ZEN	2,830	—	—	9,268	—
Nov 15, 2016 MForm 4 →	Nov 17, 4:03 pm EST	Zendesk, Inc.ZEN	2,830	—	—	9,494	—
Oct 15, 2016 MForm 4 →	Oct 18, 8:04 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	9,720	—
Sep 15, 2016 MForm 4 →	Sep 16, 8:22 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	9,946	—
Aug 15, 2016 MForm 4 →	Aug 15, 7:48 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	10,172	—
Jul 25, 2016 MForm 4 →	Jul 27, 4:22 pm EDT	Zendesk, Inc.ZEN	5,552	—	—	219,330	—
Jul 15, 2016 MForm 4 →	Jul 18, 5:31 pm EDT	Zendesk, Inc.ZEN	2,830	—	—	10,398	—
Jul 12, 2016 MForm 4 →	Jul 14, 6:51 pm EDT	Zendesk, Inc.ZEN	71,945	—	—	144,698	—
Jul 8, 2016 MForm 4 →	Jul 12, 8:02 pm EDT	Zendesk, Inc.ZEN	68,470	—	—	166,786	—
Jun 23, 2016 MForm 4/A →	Jun 27, 9:44 pm EDT	Zendesk, Inc.ZEN	4,164	—	—	324,596	—
Jun 23, 2016 MForm 4 →	Jun 24, 9:47 pm EDT	Zendesk, Inc.ZEN	4,164	—	—	324,596	—	amended
Jun 15, 2016 MForm 4 →	Jun 16, 7:01 pm EDT	Zendesk, Inc.ZEN	2,831	—	—	10,624	—
Jun 13, 2016 MForm 4 →	Jun 14, 5:57 pm EDT	Zendesk, Inc.ZEN	2,085	—	—	185,399	—
Jun 7, 2016 MForm 4 →	Jun 9, 5:55 pm EDT	Zendesk, Inc.ZEN	66,387	—	—	187,484	—
Jun 3, 2016 MForm 4 →	Jun 7, 4:33 pm EDT	Zendesk, Inc.ZEN	65,227	—	—	205,402	—
Jun 2, 2016 MForm 4 →	Jun 3, 6:24 pm EDT	Zendesk, Inc.ZEN	1,160	—	—	223,120	—
Jun 1, 2016 MForm 4 →	Jun 2, 5:36 pm EDT	Zendesk, Inc.ZEN	10,840	—	—	223,320	—
May 24, 2016 MForm 4 →	May 25, 8:16 pm EDT	Zendesk, Inc.ZEN	10,920	—	—	231,418	—
May 15, 2016 MForm 4 →	May 17, 6:10 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	85,939	—
May 6, 2016 AForm 4 →	May 10, 9:09 pm EDT	Zendesk, Inc.ZEN	43,350	—	—	10,850	—
May 4, 2016 MForm 4 →	May 6, 5:15 pm EDT	Zendesk, Inc.ZEN	44,627	—	—	238,938	—
Apr 15, 2016 MForm 4 →	Apr 19, 6:51 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	88,543	—
Mar 15, 2016 MForm 4 →	Mar 17, 6:14 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	91,147	—
Feb 15, 2016 MForm 4 →	Feb 16, 9:30 pm EST	Zendesk, Inc.ZEN	2,604	—	—	93,751	—
Jan 15, 2016 MForm 4 →	Jan 19, 5:43 pm EST	Zendesk, Inc.ZEN	2,604	—	—	96,355	—
Dec 15, 2015 MForm 4 →	Dec 16, 8:15 pm EST	Zendesk, Inc.ZEN	24,044	—	—	0	—
Dec 1, 2015 MForm 4 →	Dec 3, 9:32 am EST	Zendesk, Inc.ZEN	1,252	—	—	241,238	—
Nov 19, 2015 MForm 4/A →	Dec 2, 9:59 pm EST	Zendesk, Inc.ZEN	10,842	—	—	241,656	—
Nov 13, 2015 MForm 4 →	Nov 17, 7:00 pm EST	Zendesk, Inc.ZEN	24,044	—	—	101,563	—
Oct 15, 2015 MForm 4 →	Oct 16, 7:43 pm EDT	Zendesk, Inc.ZEN	24,045	—	—	42,880	—
Sep 15, 2015 MForm 4 →	Sep 16, 6:27 pm EDT	Zendesk, Inc.ZEN	24,044	—	—	64,320	—
Aug 15, 2015 MForm 4/A →	Aug 18, 5:18 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	109,376	—
Aug 15, 2015 MForm 4 →	Aug 18, 5:09 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	109,376	—
Aug 12, 2015 MForm 4 →	Aug 13, 5:42 pm EDT	Zendesk, Inc.ZEN	21,440	—	—	85,760	—
Jul 15, 2015 MForm 4 →	Jul 17, 7:48 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	111,980	—
Jun 22, 2015 MForm 4 →	Jun 23, 7:06 pm EDT	Zendesk, Inc.ZEN	7,294	—	—	107,200	—
Jun 15, 2015 MForm 4 →	Jun 17, 8:26 pm EDT	Zendesk, Inc.ZEN	9,898	—	—	114,584	—
Jun 8, 2015 MForm 4 →	Jun 10, 5:32 pm EDT	Zendesk, Inc.ZEN	7,294	—	—	121,788	—
Jun 1, 2015 MForm 4 →	Jun 3, 8:53 pm EDT	Zendesk, Inc.ZEN	7,294	—	—	129,082	—
May 26, 2015 MForm 4 →	May 28, 8:09 pm EDT	Zendesk, Inc.ZEN	7,294	—	—	136,376	—
May 18, 2015 MForm 4 →	May 20, 8:07 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	143,670	—
May 15, 2015 MForm 4 →	May 18, 6:14 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	117,188	—
May 11, 2015 MForm 4 →	May 11, 7:50 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	152,786	—
May 4, 2015 MForm 4 →	May 6, 5:35 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	161,902	—
Apr 27, 2015 MForm 4 →	Apr 29, 6:42 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	171,018	—
Apr 20, 2015 MForm 4 →	Apr 21, 9:36 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	180,134	—
Apr 15, 2015 MForm 4 →	Apr 17, 7:15 pm EDT	Zendesk, Inc.ZEN	2,604	—	—	119,792	—
Apr 13, 2015 MForm 4 →	Apr 14, 8:41 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	189,250	—
Apr 6, 2015 MForm 4 →	Apr 8, 6:25 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	198,366	—
Mar 30, 2015 MForm 4 →	Apr 1, 7:37 pm EDT	Zendesk, Inc.ZEN	9,116	—	—	207,482	—
Mar 23, 2015 MForm 4 →	Mar 25, 7:18 pm EDT	Zendesk, Inc.ZEN	7,294	—	—	216,598	—
Mar 15, 2015 MForm 4 →	Mar 17, 9:52 pm EDT	Zendesk, Inc.ZEN	9,898	—	—	223,892	—
Mar 9, 2015 MForm 4 →	Mar 11, 6:45 pm EDT	Zendesk, Inc.ZEN	7,294	—	—	231,186	—
Mar 2, 2015 MForm 4 →	Mar 4, 7:53 pm EST	Zendesk, Inc.ZEN	7,294	—	—	238,480	—
Feb 23, 2015 MForm 4 →	Feb 25, 7:15 pm EST	Zendesk, Inc.ZEN	7,294	—	—	245,774	—
Feb 17, 2015 MForm 4 →	Feb 18, 6:14 pm EST	Zendesk, Inc.ZEN	9,116	—	—	253,068	—
Feb 9, 2015 MForm 4 →	Feb 11, 7:22 pm EST	Zendesk, Inc.ZEN	9,116	—	—	262,184	—
Feb 5, 2015 AMForm 4 →	Feb 9, 9:36 pm EST	Zendesk, Inc.ZEN	251,250	$24.77	$3,096,250	244,999	—
Feb 2, 2015 MForm 4 →	Feb 4, 8:19 pm EST	Zendesk, Inc.ZEN	9,116	—	—	271,300	—
Jan 26, 2015 MForm 4 →	Jan 28, 7:53 pm EST	Zendesk, Inc.ZEN	9,116	—	—	280,416	—
Jan 20, 2015 MForm 4 →	Jan 22, 4:51 pm EST	Zendesk, Inc.ZEN	9,116	—	—	289,532	—
Jan 12, 2015 MForm 4 →	Jan 14, 9:02 pm EST	Zendesk, Inc.ZEN	9,116	—	—	298,648	—
Jan 8, 2015 MForm 4 →	Jan 12, 4:43 pm EST	Zendesk, Inc.ZEN	13,991	—	—	245,416	—
Jan 5, 2015 MForm 4 →	Jan 7, 5:27 pm EST	Zendesk, Inc.ZEN	9,116	—	—	319,671	—