| $164M | ||
| $143M | ||
| $143M | ||
| $76M | ||
| $60M | ||
| $46M |
Buys | $0 | 0 | 0 |
Sells | $7,203,963 | 38 | 100 |
| Day Christopher | VP, Marketing | 0 | $0 | 3 | $90,189 | $-90,189 |
| PAISLEY CHRISTOPHER B | director | 0 | $0 | 3 | $126,420 | $-126,420 |
| Schwarting Elizabeth M | director | 0 | $0 | 2 | $272,608 | $-272,608 |
| Kohn Leslie | Chief Technology Officer | 0 | $0 | 4 | $483,050 | $-483,050 |
| Lee Chan W | Chief Operating Officer | 0 | $0 | 5 | $608,059 | $-608,059 |
| Chen Yun-Lung | VP, Business Development | 0 | $0 | 1 | $716,895 | $-716,895 |
| Young John Alexander | CFO | 0 | $0 | 6 | $1.06M | $-1.06M |
| Wang Feng-Ming | CEO | 0 | $0 | 5 | $1.39M | $-1.39M |
| Ju Chi-Hong | Sr. Vice President, Systems | 0 | $0 | 9 | $2.46M | $-2.46M |
Ambarella, Inc. develops semiconductor solutions for video that enable high-definition (HD) and ultra HD compression, image processing, and deep neural network processing worldwide. The company's system-on-a-chip designs integrated HD video processing, image processing, artificial intelligence computer vision algorithms, audio processing, and system functions onto a single chip for delivering video and image quality, differentiated functionality, and low power consumption. Its solutions are used in automotive cameras, such as automotive video recorders, electronic mirrors, front advanced driver assistance system camera, cabin monitoring system and driver monitoring system camera, and central domain controllers for autonomous vehicle; and professional and home internet protocol security camera; robotics and industrial application, including identification/authentication cameras, robotic products, and sensing cameras, as well as cameras for the home, public spaces, and consumer leisure comprising wearable body cameras, sports action cameras, social media cameras, drones for capturing aerial video or photographs, video conferencing, and virtual reality applications. The company sells its solutions to original design manufacturers and original equipment manufacturers through its direct sales force and distributors. Ambarella, Inc. was incorporated in 2004 and is headquartered in Santa Clara, California.
Over the last 12 months, insiders at Ambarella, Inc. have bought $0 and sold $7.2M worth of Ambarella, Inc. stock.
On average, over the past 5 years, insiders at Ambarella, Inc. have bought $1.01M and sold $14.54M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 11,455 shares for transaction amount of $1.01M was made by VERHALEN ANDREW W () on 2022‑03‑07.
| 2026-01-05 | Sale | Ju Chi-Hong | Senior VP, Systems & GM, Asia | 7,728 0.0179% | $75.58 | $584,105 | -10.59% | |
| 2025-12-30 | Sale | Ju Chi-Hong | Senior VP, Systems & GM, Asia | 7,945 0.0189% | $70.25 | $558,136 | -4.39% | |
| 2025-12-26 | Sale | PAISLEY CHRISTOPHER B | director | 500 0.0012% | $72.18 | $36,090 | -6.33% | |
| 2025-12-18 | Sale | Young John Alexander | CFO | 3,791 0.0093% | $72.96 | $276,591 | -3.45% | |
| 2025-12-17 | Sale | Wang Feng-Ming | CEO | 4,950 0.012% | $71.82 | $355,509 | -2.69% | |
| 2025-12-17 | Sale | Ju Chi-Hong | Senior VP, Systems & GM, Asia | 1,342 0.0033% | $71.82 | $96,382 | -2.69% | |
| 2025-12-17 | Sale | Lee Chan W | Chief Operations Officer | 2,406 0.0058% | $71.82 | $172,799 | -2.69% | |
| 2025-12-17 | Sale | Young John Alexander | CFO | 2,579 0.0062% | $71.82 | $185,224 | -2.69% | |
| 2025-12-16 | Sale | Schwarting Elizabeth M | director | 624 0.0015% | $72.38 | $45,163 | -5.31% | |
| 2025-10-14 | Sale | Ju Chi-Hong | Senior VP, Systems & GM, Asia | 6,156 0.0144% | $80.96 | $498,390 | -9.05% | |
| 2025-10-13 | Sale | Ju Chi-Hong | Senior VP, Systems & GM, Asia | 5,057 0.0119% | $81.29 | $411,093 | -8.78% | |
| 2025-10-06 | Sale | Schwarting Elizabeth M | director | 2,664 0.0062% | $85.38 | $227,445 | -13.12% | |
| 2025-09-17 | Sale | Kohn Leslie | Chief Technology Officer | 2,249 0.0053% | $79.43 | $178,638 | -2.77% | |
| 2025-09-17 | Sale | Wang Feng-Ming | CEO | 4,928 0.0115% | $79.43 | $391,431 | -2.77% | |
| 2025-09-17 | Sale | Ju Chi-Hong | Sr. Vice President, Systems | 1,168 0.0027% | $79.43 | $92,774 | -2.77% | |
| 2025-09-17 | Sale | Lee Chan W | Chief Operating Officer | 1,947 0.0045% | $79.43 | $154,650 | -2.77% | |
| 2025-09-17 | Sale | Young John Alexander | CFO | 2,566 0.006% | $79.43 | $203,817 | -2.77% | |
| 2025-09-10 | Sale | Chen Yun-Lung | VP, Business Development | 8,492 0.0201% | $84.42 | $716,895 | -5.33% | |
| 2025-06-25 | Sale | PAISLEY CHRISTOPHER B | director | 1,000 0.0023% | $62.58 | $62,580 | +10.71% | |
| 2025-06-17 | Sale | Kohn Leslie | Chief Technology Officer | 1,715 0.004% | $52.26 | $89,626 | +35.69% |
| Kohn Leslie | Chief Technology Officer | 977428 2.2704% | $64.3M | 0 | 90 | |
| Wang Feng-Ming | CEO | 783979 1.8211% | $51.58M | 0 | 88 | |
| Ju Chi-Hong | Senior VP, Systems & GM, Asia | 146039 0.3392% | $9.61M | 0 | 36 | |
| Lee Chan W | Chief Operations Officer | 124566 0.2893% | $8.2M | 0 | 30 | |
| Young John Alexander | CFO | 102738 0.2386% | $6.76M | 0 | 11 | |
| Chen Yun-Lung | VP, Business Development | 61651 0.1432% | $4.06M | 0 | 21 | |
| PAISLEY CHRISTOPHER B | director | 41279 0.0959% | $2.72M | 0 | 39 | |
| Day Christopher | VP, Marketing | 15099 0.0351% | $993,363.21 | 0 | 135 | |
| Schwarting Elizabeth M | director | 6690 0.0155% | $440,135.10 | 0 | 17 | |
| BENCHMARK CAPITAL MANAGEMENT CO IV LLC | 10 percent owner | 3150520 7.3182% | $207.27M | 0 | 1 | |
| DUNLEVIE BRUCE | 10 percent owner | 3150520 7.3182% | $207.27M | 0 | 1 | |
| Laplante George | Executive Vice President | 95986 0.223% | $6.31M | 0 | 32 | |
| WHITE BRIAN C | CFO | 74140 0.1722% | $4.88M | 0 | 5 | |
| EICHLER KEVIN C | CFO | 73259 0.1702% | $4.82M | 0 | 16 | |
| LeGall Didier | Executive Vice President | 53380 0.124% | $3.51M | 0 | 27 | |
| GOLDMAN SACHS GROUP INC | 10 percent owner | 40299 0.0936% | $2.65M | 0 | 1 | |
| Hon Hsiao-Wuen | director | 28278 0.0657% | $1.86M | 0 | 1 | |
| RICHARDSON DAVID JEFFREY | director | 22438 0.0521% | $1.48M | 0 | 5 | |
| VERHALEN ANDREW W | 11455 0.0266% | $753,624.45 | 1 | 5 | <0.0001% | |
| Hu Chenming | director | 10246 0.0238% | $674,084.34 | 0 | 8 | |
| Meng Teresa H | director | 5852 0.0136% | $385,003.08 | 0 | 10 | |
| TAN LIP BU | director | 3236 0.0075% | $212,896.44 | 0 | 9 |
$51,368,869 | 76 | 0.70% | $230.67B | |
$41,019,040 | 35 | 51.90% | $4,503.46B | |
$13,782,464 | 21 | 12.61% | $331.1B | |
$2,311,530 | 15 | 4.79% | $205.04B | |
$218,719,762 | 15 | 14.47% | $1,576.66B | |
$864,936 | 4 | 14.99% | $449.96B |
| Increased Positions | 177 | +46.95% | 5M | +12.59% |
| Decreased Positions | 165 | -43.77% | 5M | -12.64% |
| New Positions | 73 | New | 2M | New |
| Sold Out Positions | 50 | Sold Out | 1M | Sold Out |
| Total Postitions | 389 | +3.18% | 36M | -0.05% |
| Vanguard Group Inc | $388,475.00 | 12.02% | 5.17M | +4,510 | +0.09% | 2025-09-30 |
| Blackrock, Inc. | $294,796.00 | 9.12% | 3.92M | +4,463 | +0.11% | 2025-09-30 |
| State Street Corp | $126,333.00 | 3.91% | 1.68M | -174,315 | -9.4% | 2025-09-30 |
| Jericho Capital Asset Management L.P. | $91,195.00 | 2.82% | 1.21M | +114,865 | +10.46% | 2025-09-30 |
| Fuller & Thaler Asset Management, Inc. | $83,253.00 | 2.58% | 1.11M | +90,386 | +8.88% | 2025-09-30 |
| Geode Capital Management, Llc | $74,034.00 | 2.29% | 985,017 | +8,736 | +0.9% | 2025-09-30 |
| Morgan Stanley | $72,041.00 | 2.23% | 958,506 | +166,378 | +21% | 2025-09-30 |
| Kodai Capital Management Lp | $67,985.00 | 2.1% | 904,536 | +125,983 | +16.18% | 2025-03-31 |
| Manufacturers Life Insurance Company, The | $64,128.00 | 1.98% | 853,215 | -518,296 | -37.79% | 2025-09-30 |
| Ubs Group Ag | $61,763.00 | 1.91% | 821,747 | +650,306 | +379.32% | 2025-09-30 |