Company · CIK 0001280263 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

AMBARELLA INC · AMBA

Insider activity reported against this company. All insider holders · On EDGAR ↗

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

Open-market buys & salesbuys $0 · 0sales $48.4M · 136net −$48.4M

Reported at this company — common stock

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Sep 16, 2016 MForm 4 →	Sep 20, 5:01 pm EDT	Feng-Ming WangCEO, Director	11,542	—	—	280,646	—	plan?
Sep 7, 2016 SForm 4 →	Sep 8, 7:14 pm EDT	George LaplanteCFO	30,000	$67.08	$2,012,463	88,720	−25.3%	plan?
Sep 7, 2016 MForm 4 →	Sep 8, 7:14 pm EDT	George LaplanteCFO	30,000	$8.82	$264,600	118,720	—	plan?
Sep 7, 2016 SForm 4 →	Sep 8, 7:14 pm EDT	Christopher B PaisleyDirector	1,000	$69.13	$69,130	9,014	−9.99%	plan?
Sep 7, 2016 MForm 4 →	Sep 8, 7:14 pm EDT	Christopher B PaisleyDirector	1,000	$6.00	$6,000	10,014	—	plan?
Jun 30, 2016 SForm 4 →	Jun 30, 5:23 pm EDT	Christopher DayVP, Marketing	1,173	$50.85	$59,647	23,532	−4.75%	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 5:58 pm EDT	Andrew W VerhalenDirector	1,153	—	—	48,841	—	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 5:57 pm EDT	Lip Bu TanDirector	1,153	—	—	5,542	—	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 4:58 pm EDT	David Jeffrey RichardsonDirector	1,570	—	—	7,833	—	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 4:57 pm EDT	Chenming HuDirector	1,153	—	—	25,123	—	plan?
Jun 16, 2016 SForm 4 →	Jun 20, 4:56 pm EDT	George LaplanteCFO	3,869	$51.97	$201,072	88,720	−4.18%	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 4:56 pm EDT	George LaplanteCFO	6,163	—	—	92,589	—	plan?
Jun 16, 2016 SForm 4 →	Jun 20, 4:55 pm EDT	Christopher DayVP, Marketing	1,405	$51.97	$73,018	24,705	−5.38%	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 4:55 pm EDT	Christopher DayVP, Marketing	2,612	—	—	26,110	—	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 4:54 pm EDT	Yun-Lung ChenVice President, Sales	4,192	—	—	13,239	—	plan?
Jun 16, 2016 SForm 4 →	Jun 20, 4:52 pm EDT	Leslie KohnCTO, Director	4,675	$51.97	$242,960	889,487	−0.52%	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 4:52 pm EDT	Leslie KohnCTO, Director	7,239	—	—	894,162	—	plan?
Jun 16, 2016 SForm 4 →	Jun 20, 4:50 pm EDT	Feng-Ming WangCEO, Director	9,573	$51.97	$497,509	268,773	−3.44%	plan?
Jun 16, 2016 MForm 4 →	Jun 20, 4:50 pm EDT	Feng-Ming WangCEO, Director	11,542	—	—	278,346	—	plan?
Jun 15, 2016 SForm 4 →	Jun 17, 12:11 pm EDT	Christopher B PaisleyDirector	1,000	$51.96	$51,960	7,861	−11.3%	plan?
Jun 15, 2016 MForm 4 →	Jun 17, 12:11 pm EDT	Christopher B PaisleyDirector	2,153	$6.00	$6,000	9,014	—	plan?
Mar 29, 2016 SForm 4 →	Mar 31, 6:11 pm EDT	Christopher DayVP, Marketing	1,812	$43.50	$78,822	23,498	−7.16%	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:34 pm EDT	David Jeffrey RichardsonDirector	1,570	—	—	6,263	—	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:32 pm EDT	Christopher B PaisleyDirector	1,153	—	—	7,861	—	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:31 pm EDT	Chenming HuDirector	1,153	—	—	23,970	—	plan?
Mar 16, 2016 SForm 4 →	Mar 18, 6:30 pm EDT	George LaplanteCFO	3,540	$37.12	$131,405	86,426	−3.93%	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:30 pm EDT	George LaplanteCFO	8,414	—	—	89,966	—	plan?
Mar 16, 2016 SForm 4 →	Mar 18, 6:29 pm EDT	Christopher DayVP, Marketing	1,475	$37.12	$54,752	25,310	−5.51%	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:29 pm EDT	Christopher DayVP, Marketing	3,550	—	—	26,785	—	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:28 pm EDT	Yun-Lung ChenVice President, Sales	4,437	—	—	9,047	—	plan?
Mar 16, 2016 SForm 4 →	Mar 18, 6:27 pm EDT	Leslie KohnCTO, Director	4,253	$37.12	$157,871	886,923	−0.48%	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:27 pm EDT	Leslie KohnCTO, Director	10,239	—	—	891,176	—	plan?
Mar 16, 2016 SForm 4 →	Mar 18, 6:23 pm EDT	Feng-Ming WangCEO, Director	8,021	$37.12	$297,740	266,804	−2.92%	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 6:23 pm EDT	Feng-Ming WangCEO, Director	16,042	—	—	274,825	—	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 5:20 pm EDT	Lip Bu TanDirector	1,153	—	—	4,389	—	plan?
Mar 16, 2016 MForm 4 →	Mar 18, 5:20 pm EDT	Andrew W VerhalenDirector	1,153	—	—	47,688	—	plan?
Mar 7, 2016 AForm 4 →	Mar 9, 6:16 pm EST	Christopher DayVP, Marketing	10,693	—	—	23,060	—	plan?
Mar 7, 2016 AForm 4 →	Mar 9, 6:13 pm EST	George LaplanteCFO	29,940	—	—	81,552	—	plan?
Mar 7, 2016 AForm 4 →	Mar 9, 6:10 pm EST	Leslie KohnCTO, Director	31,366	—	—	880,937	—	plan?
Mar 7, 2016 AForm 4 →	Mar 9, 6:06 pm EST	Feng-Ming WangCEO, Director	65,583	—	—	258,608	—	plan?
Dec 28, 2015 SForm 4 →	Dec 30, 4:23 pm EST	Lip Bu TanDirector	2,472	$58.21	$143,904	3,236	−43.3%	plan?
Dec 21, 2015 SForm 4 →	Dec 23, 6:12 pm EST	Christopher DayVP, Marketing	894	$58.50	$52,299	12,397	−6.73%	plan?
Dec 16, 2015 SForm 4 →	Dec 18, 6:55 pm EST	Feng-Ming WangCEO, Director	9,475	$56.97	$539,791	193,025	−4.68%	plan?
Dec 16, 2015 MForm 4 →	Dec 18, 6:55 pm EST	Feng-Ming WangCEO, Director	16,041	—	—	202,500	—	plan?
Dec 16, 2015 SForm 4 →	Dec 18, 6:52 pm EST	Leslie KohnCTO, Director	5,890	$56.97	$335,553	849,571	−0.69%	plan?
Dec 16, 2015 MForm 4 →	Dec 18, 6:52 pm EST	Leslie KohnCTO, Director	10,239	—	—	855,461	—	plan?
Dec 16, 2015 MForm 4 →	Dec 18, 6:51 pm EST	Yun-Lung ChenVice President, Sales	4,435	—	—	4,435	—	plan?
Dec 16, 2015 SForm 4 →	Dec 18, 6:49 pm EST	Christopher DayVP, Marketing	2,817	$57.39	$161,672	13,291	−17.5%	plan?
Dec 16, 2015 MForm 4 →	Dec 18, 6:49 pm EST	Christopher DayVP, Marketing	3,548	—	—	16,108	—	plan?
Dec 16, 2015 SForm 4 →	Dec 18, 6:47 pm EST	George LaplanteCFO	4,903	$56.97	$279,324	51,612	−8.68%	plan?
Dec 16, 2015 MForm 4 →	Dec 18, 6:47 pm EST	George LaplanteCFO	8,412	—	—	56,515	—	plan?
Dec 16, 2015 MForm 4 →	Dec 18, 4:06 pm EST	Andrew W VerhalenDirector	1,152	—	—	46,535	—	plan?
Dec 16, 2015 MForm 4 →	Dec 18, 4:05 pm EST	Lip Bu TanDirector	1,152	—	—	5,708	—	plan?
Dec 16, 2015 MForm 4 →	Dec 17, 7:03 pm EST	David Jeffrey RichardsonDirector	1,568	—	—	4,693	—	plan?
Dec 16, 2015 MForm 4 →	Dec 17, 7:02 pm EST	Chenming HuDirector	1,152	—	—	22,817	—	plan?
Dec 15, 2015 SForm 4 →	Dec 17, 7:02 pm EST	Christopher B PaisleyDirector	1,000	$56.89	$56,887	5,556	−15.3%	plan?
Dec 15, 2015 MForm 4 →	Dec 17, 7:02 pm EST	Christopher B PaisleyDirector	2,152	$6.00	$6,000	6,708	—	plan?
Dec 8, 2015 SForm 4 →	Dec 10, 5:29 pm EST	Christopher DayVP, Marketing	776	$57.42	$44,562	12,560	−5.82%	plan?
Oct 8, 2015 AForm 4 →	Oct 13, 7:56 pm EDT	George LaplanteCFO	13,696	—	—	48,103	—	plan? late
Oct 8, 2015 AForm 4 →	Oct 13, 7:53 pm EDT	Christopher DayVP, Marketing	4,891	—	—	13,336	—	plan? late
Oct 8, 2015 AForm 4 →	Oct 13, 7:49 pm EDT	Leslie KohnCTO, Director	14,348	—	—	845,222	—	plan? late
Oct 8, 2015 AForm 4 →	Oct 13, 7:43 pm EDT	Feng-Ming WangCEO, Director	30,000	—	—	186,459	—	plan? late
Oct 8, 2015 MForm 4 →	Oct 9, 6:29 pm EDT	Chenming HuDirector	16,109	$12.18	$196,259	21,665	—	plan?
Sep 30, 2015 SForm 4 →	Oct 1, 7:07 pm EDT	Christopher DayVP, Marketing	1,010	$58.16	$58,742	8,445	−10.7%	plan?
Sep 23, 2015 GForm 5/A →	Mar 9, 2016, 2:08 pm EST	Christopher DayVP, Marketing	30	—	—	12,367	—	plan?
Sep 23, 2015 GForm 5 →	Mar 7, 2016, 7:35 pm EST	Christopher DayVP, Marketing	30	—	—	9,425	—	plan? amended
Sep 17, 2015 SForm 4 →	Sep 21, 5:21 pm EDT	Yun-Lung ChenVice President, Sales	5,739	$73.93	$424,309	0	−100%	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 7:26 pm EDT	David Jeffrey RichardsonDirector	765	—	—	3,125	—	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 7:24 pm EDT	Christopher B PaisleyDirector	695	—	—	5,556	—	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 7:19 pm EDT	Chenming HuDirector	695	—	—	5,556	—	plan?
Sep 16, 2015 SForm 4 →	Sep 17, 7:15 pm EDT	George LaplanteCFO	4,450	$70.80	$315,060	34,407	−11.5%	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 7:15 pm EDT	George LaplanteCFO	8,414	—	—	38,857	—	plan?
Sep 16, 2015 SForm 4 →	Sep 17, 7:12 pm EDT	Christopher DayVP, Marketing	1,880	$70.80	$133,104	9,455	−16.6%	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 7:12 pm EDT	Christopher DayVP, Marketing	3,550	—	—	11,335	—	plan?
Sep 16, 2015 SForm 4 →	Sep 17, 7:05 pm EDT	Leslie KohnCTO, Director	5,415	$70.80	$383,382	830,874	−0.65%	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 7:05 pm EDT	Leslie KohnCTO, Director	10,239	—	—	836,289	—	plan?
Sep 16, 2015 SForm 4 →	Sep 17, 7:00 pm EDT	Feng-Ming WangCEO, Director	8,483	$70.80	$600,596	156,459	−5.14%	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 7:00 pm EDT	Feng-Ming WangCEO, Director	16,042	—	—	164,942	—	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 6:56 pm EDT	Andrew W VerhalenDirector	695	—	—	45,383	—	plan?
Sep 16, 2015 MForm 4 →	Sep 17, 6:53 pm EDT	Lip Bu TanDirector	695	—	—	4,556	—	plan?
Sep 14, 2015 SForm 4 →	Sep 16, 7:15 pm EDT	Yun-Lung ChenVice President, Sales	8,321	$68.80	$572,485	1,494	−84.8%	plan?
Sep 14, 2015 MForm 4 →	Sep 16, 7:15 pm EDT	Yun-Lung ChenVice President, Sales	12,404	$16.90	$140,611	5,739	—	plan?
Sep 4, 2015 SForm 4 →	Sep 9, 5:53 pm EDT	Yun-Lung ChenVice President, Sales	6,520	$70.25	$458,030	1,494	−81.4%	plan?
Sep 4, 2015 SForm 4 →	Sep 9, 5:50 pm EDT	Christopher B PaisleyDirector	1,000	$72.57	$72,570	4,861	−17.1%	plan?
Sep 4, 2015 MForm 4 →	Sep 9, 5:50 pm EDT	Christopher B PaisleyDirector	1,000	$6.00	$6,000	5,861	—	plan?
Jun 18, 2015 SForm 4 →	Jun 18, 6:40 pm EDT	Yun-Lung ChenVP of Business Development	1,646	$125.04	$205,816	8,014	−17.0%	plan?
Jun 16, 2015 MForm 4/A →	Jun 18, 7:57 pm EDT	George LaplanteChief Financial Officer	8,413	—	—	30,443	—	plan?
Jun 16, 2015 SForm 4 →	Jun 18, 6:53 pm EDT	George LaplanteChief Financial Officer	4,184	$117.60	$492,056	31,831	−11.6%	plan? amended
Jun 16, 2015 MForm 4 →	Jun 18, 6:53 pm EDT	George LaplanteChief Financial Officer	9,801	—	—	36,015	—	plan? amended
Jun 16, 2015 SForm 4 →	Jun 18, 6:46 pm EDT	Christopher DayVP of Marketing	6,305	$121.38	$765,270	7,605	−45.3%	plan?
Jun 16, 2015 MForm 4 →	Jun 18, 6:46 pm EDT	Christopher DayVP of Marketing	4,786	$38.92	$48,144	12,147	—	plan?
Jun 16, 2015 MForm 4 →	Jun 18, 6:40 pm EDT	Yun-Lung ChenVP of Business Development	4,083	—	—	9,660	—	plan?
Jun 16, 2015 SForm 4 →	Jun 18, 6:33 pm EDT	Leslie KohnCTO, Director	5,413	$117.60	$636,592	826,050	−0.65%	plan?
Jun 16, 2015 MForm 4 →	Jun 18, 6:33 pm EDT	Leslie KohnCTO, Director	10,239	—	—	831,463	—	plan?
Jun 16, 2015 SForm 4 →	Jun 18, 6:26 pm EDT	Feng-Ming WangCEO, Director	8,480	$117.60	$997,284	148,720	−5.39%	plan?
Jun 16, 2015 MForm 4 →	Jun 18, 6:26 pm EDT	Feng-Ming WangCEO, Director	16,042	—	—	157,200	—	plan?
Jun 16, 2015 MForm 4 →	Jun 18, 4:06 pm EDT	Andrew W VerhalenDirector	694	—	—	44,688	—	plan?
Jun 16, 2015 SForm 4 →	Jun 18, 4:05 pm EDT	Lip Bu TanDirector	200	$118.15	$23,629	300	−40.0%	plan?
Jun 16, 2015 MForm 4 →	Jun 18, 4:05 pm EDT	Lip Bu TanDirector	694	—	—	3,861	—	plan?
Jun 16, 2015 MForm 4 →	Jun 17, 6:19 pm EDT	David Jeffrey RichardsonDirector	764	—	—	2,360	—	plan?

Reported at this company — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Sep 4, 2015 MForm 4 →	Sep 9, 5:50 pm EDT	Christopher B PaisleyDirector	1,000	—	—	19,667	—
Jun 16, 2015 MForm 4 →	Jun 18, 6:53 pm EDT	George LaplanteChief Financial Officer	8,413	—	—	36,969	—	amended
Jun 16, 2015 MForm 4 →	Jun 18, 6:46 pm EDT	Christopher DayVP of Marketing	4,786	—	—	12,513	—
Jun 16, 2015 MForm 4 →	Jun 18, 6:40 pm EDT	Yun-Lung ChenVP of Business Development	4,083	—	—	15,072	—
Jun 16, 2015 MForm 4 →	Jun 18, 6:33 pm EDT	Leslie KohnCTO, Director	10,239	—	—	38,675	—
Jun 16, 2015 MForm 4 →	Jun 18, 6:26 pm EDT	Feng-Ming WangCEO, Director	16,042	—	—	68,250	—
Jun 16, 2015 MForm 4 →	Jun 18, 4:06 pm EDT	Andrew W VerhalenDirector	694	—	—	695	—
Jun 16, 2015 MForm 4 →	Jun 18, 4:05 pm EDT	Lip Bu TanDirector	694	—	—	695	—
Jun 16, 2015 MForm 4 →	Jun 17, 6:19 pm EDT	David Jeffrey RichardsonDirector	764	—	—	348	—
Jun 16, 2015 MForm 4 →	Jun 17, 6:17 pm EDT	Chenming HuDirector	694	—	—	695	—
Jun 15, 2015 MForm 4 →	Jun 17, 6:18 pm EDT	Christopher B PaisleyDirector	2,194	—	—	695	—
Jun 10, 2015 MForm 4 →	Jun 10, 6:02 pm EDT	Christopher DayVP of Marketing	1,000	—	—	6,071	—
Jun 9, 2015 MForm 4 →	Jun 10, 6:01 pm EDT	Chenming HuDirector	15,000	—	—	11,666	—
Jun 5, 2015 MForm 4 →	Jun 9, 6:41 pm EDT	Christopher DayVP of Marketing	1,389	—	—	926	—
Mar 31, 2015 MForm 4 →	Apr 1, 6:43 pm EDT	Christopher DayVP of Marketing	1,000	—	—	7,071	—
Mar 27, 2015 MForm 4 →	Mar 30, 6:03 pm EDT	Christopher DayVP of Marketing	2,389	—	—	8,071	—
Mar 25, 2015 MForm 4 →	Mar 27, 8:49 pm EDT	Lip Bu TanDirector	15,277	—	—	2,778	—
Mar 20, 2015 MForm 4 →	Mar 23, 8:12 pm EDT	Leslie KohnCTO, Director	27,552	—	—	0	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:44 pm EDT	Feng-Ming WangCEO, Director	16,041	—	—	73,500	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:43 pm EDT	Leslie KohnCTO, Director	10,239	—	—	41,650	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:42 pm EDT	George LaplanteChief Financial Officer	8,414	—	—	39,813	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:41 pm EDT	Christopher DayVP of Marketing	3,550	—	—	13,475	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:40 pm EDT	Yun-Lung ChenVP of Business Development	4,083	—	—	16,232	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:39 pm EDT	David Jeffrey RichardsonDirector	763	—	—	695	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:38 pm EDT	Christopher B PaisleyDirector	695	—	—	1,389	—
Mar 17, 2015 MForm 4 →	Mar 19, 6:37 pm EDT	Chenming HuDirector	695	—	—	1,389	—
Mar 17, 2015 MForm 4 →	Mar 19, 5:49 pm EDT	Lip Bu TanDirector	695	—	—	1,389	—
Mar 17, 2015 MForm 4 →	Mar 19, 5:49 pm EDT	Andrew W VerhalenDirector	695	—	—	1,389	—
Mar 16, 2015 MForm 4 →	Mar 18, 7:30 pm EDT	Leslie KohnCTO, Director	40,000	—	—	4,445	—
Mar 16, 2015 MForm 4 →	Mar 18, 7:26 pm EDT	Christopher B PaisleyDirector	1,500	—	—	22,167	—
Mar 11, 2015 MForm 4 →	Mar 13, 5:08 pm EDT	Christopher DayVP of Marketing	2,000	—	—	9,071	—
Mar 6, 2015 MForm 4 →	Mar 10, 5:56 pm EDT	Feng-Ming WangCEO, Director	6,667	—	—	104,444	—
Jan 7, 2015 MForm 4 →	Jan 9, 6:07 pm EST	Leslie KohnCTO, Director	38,000	—	—	5,926	—