AMBARELLA INC (AMBA)

Latest Insider Confidence Score

2026Q1

45.0
Bearish

Company insider confidence (by quarter)

2015Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Kohn Leslie Chief Technology Officer 977,428 Sep 19, 2025
Wang Feng-Ming CEO 788,929 Sep 19, 2025
Lee Chan W Chief Operations Officer 126,972 Sep 19, 2025
Young John Alexander CFO 109,108 Sep 19, 2025
White Brian C CFO 74,140 Dec 21, 2023

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 2, 2026 Mar 4, 2026 Young John Alexander CFO Neutral 90.0 +15,201 14.80% ✗ -
Mar 2, 2026 Mar 4, 2026 Chen Yun-Lung VP, Business Development and M Neutral 90.0 +7,220 11.71% ✗ -
Mar 2, 2026 Mar 4, 2026 Lee Chan W Chief Operations Officer Neutral 90.0 +24,701 19.83% ✗ -
Mar 2, 2026 Mar 4, 2026 Ju Chi-Hong Senior VP, Systems & GM, Asia Neutral 90.0 +17,329 11.56% ✗ -
Mar 2, 2026 Mar 4, 2026 Wang Feng-Ming CEO Sell 70.0 +3,203 0.39% ✓ $3M
Mar 2, 2026 Mar 4, 2026 Bryant Gregory M Director Neutral 90.0 +2,457 100.00% ✗ -
Mar 4, 2026 Bryant Gregory M Director Neutral 52.5 - 0.00% ✗ -
Dec 30, 2025 Jan 23, 2026 Ju Chi-Hong Senior VP, Systems & GM, Asia Sell 20.0 -7,945 -5.04% ✗ $558.1K
Jan 5, 2026 Jan 7, 2026 Ju Chi-Hong Senior VP, Systems & GM, Asia Sell 20.0 -7,728 -4.78% ✗ $584.1K
Dec 30, 2025 Dec 31, 2025 Ju Chi-Hong Senior VP, Systems & GM, Asia Sell 20.0 -3,765 -2.27% ✗ $264.8K
Dec 26, 2025 Dec 29, 2025 PAISLEY CHRISTOPHER B Director Sell 26.3 -500 -1.20% ✗ $36.1K
Dec 17, 2025 Dec 19, 2025 Young John Alexander CFO Sell 20.0 -6,370 -5.84% ✗ $461.8K
Dec 17, 2025 Dec 19, 2025 Lee Chan W Chief Operations Officer Sell 22.5 -2,406 -1.89% ✗ $172.8K
Dec 17, 2025 Dec 19, 2025 Ju Chi-Hong Senior VP, Systems & GM, Asia Sell 32.5 -1,342 -0.80% ✗ $96.4K
Dec 17, 2025 Dec 19, 2025 Wang Feng-Ming CEO Sell 20.0 -19,950 -2.53% ✗ $355.5K
Dec 16, 2025 Dec 18, 2025 Schwarting Elizabeth M Director Sell 26.3 -624 -8.53% ✗ $45.2K
Dec 15, 2025 Dec 17, 2025 RICHARDSON DAVID JEFFREY Director Neutral 52.5 - 0.00% ✗ -
Oct 13, 2025 Oct 15, 2025 Ju Chi-Hong Senior VP, Systems & GM, Asia Sell 20.0 -11,213 -6.30% ✗ $909.5K
Oct 6, 2025 Oct 8, 2025 Schwarting Elizabeth M Director Sell 22.5 -2,664 -26.70% ✗ $227.4K
Sep 17, 2025 Sep 19, 2025 Young John Alexander CFO Sell 22.5 -2,566 -2.30% ✗ $203.8K
Sep 17, 2025 Sep 19, 2025 Lee Chan W COO Sell 22.5 -1,947 -1.51% ✗ $154.7K
Sep 17, 2025 Sep 19, 2025 Kohn Leslie Chief Technology Officer Sell 40.0 -2,249 -0.23% ✗ $178.6K
Sep 17, 2025 Sep 19, 2025 Ju Chi-Hong President Sell 32.5 -1,168 -0.65% ✗ $92.8K
Sep 17, 2025 Sep 19, 2025 Wang Feng-Ming CEO Sell 30.0 -4,928 -0.62% ✗ $391.4K
Sep 10, 2025 Sep 12, 2025 Chen Yun-Lung VP, Business Development Sell 20.0 -8,492 -12.11% ✗ $716.9K
Sep 2, 2025 Sep 4, 2025 Breithaupt Chantelle Yvette Director Neutral 90.0 +2,498 102.29% ✗ -
Sep 2, 2025 Sep 4, 2025 Schwarting Elizabeth M Director Neutral 90.0 +2,498 33.40% ✗ -
Sep 2, 2025 Sep 4, 2025 Hon Hsiao-Wuen Director Neutral 85.0 +2,498 8.83% ✗ -
Sep 2, 2025 Sep 4, 2025 RICHARDSON DAVID JEFFREY Director Neutral 85.0 +2,498 9.68% ✗ -
Sep 2, 2025 Sep 4, 2025 PAISLEY CHRISTOPHER B Director Neutral 85.0 +2,498 6.36% ✗ -
Sep 2, 2025 Sep 4, 2025 Hu Chenming Director Neutral 85.0 +2,498 9.25% ✗ -
Jun 25, 2025 Jun 27, 2025 PAISLEY CHRISTOPHER B Director Sell 41.3 -1,000 -2.48% ✓ $62.6K
Jun 17, 2025 Jun 20, 2025 Young John Alexander CFO Sell 22.5 -2,435 -2.14% ✗ $127.3K
Jun 17, 2025 Jun 20, 2025 Day Christopher VP, Marketing Sell 26.3 -342 -2.21% ✗ $17.9K
Jun 17, 2025 Jun 20, 2025 Lee Chan W COO Sell 22.5 -1,601 -1.23% ✗ $83.7K
Jun 17, 2025 Jun 20, 2025 Kohn Leslie Chief Technology Officer Sell 47.5 -1,715 -0.17% ✗ $89.6K
Jun 17, 2025 Jun 20, 2025 Ju Chi-Hong President Sell 32.5 -1,108 -0.62% ✗ $57.9K
Jun 17, 2025 Jun 20, 2025 Wang Feng-Ming CEO Sell 32.5 -4,677 -0.59% ✗ $244.4K
Mar 25, 2025 Mar 26, 2025 PAISLEY CHRISTOPHER B Director Sell 48.8 -500 -1.23% ✓ $27.8K
Mar 18, 2025 Mar 20, 2025 Young John Alexander CFO Sell 22.5 -2,103 -1.81% ✗ $115.7K
Mar 18, 2025 Mar 20, 2025 Day Christopher VP, Marketing Sell 26.3 -479 -3.01% ✗ $26.4K
Mar 18, 2025 Mar 20, 2025 Lee Chan W COO Sell 22.5 -1,468 -1.11% ✗ $80.8K
Mar 18, 2025 Mar 20, 2025 Kohn Leslie Chief Technology Officer Sell 47.5 -1,584 -0.16% ✗ $87.2K
Mar 18, 2025 Mar 20, 2025 Ju Chi-Hong President Sell 32.5 -1,034 -0.57% ✗ $56.9K
Mar 18, 2025 Mar 20, 2025 Wang Feng-Ming CEO Sell 40.0 -3,194 -0.40% ✗ $175.7K
Mar 17, 2025 Mar 18, 2025 Schwarting Elizabeth M Director Sell 26.3 -422 -5.34% ✗ $23.6K
Feb 28, 2025 Mar 7, 2025 Young John Alexander CFO Sell 95.0 +14,362 14.16% ✗ $146.8K
Mar 5, 2025 Mar 7, 2025 Day Christopher VP, Marketing Sell 86.3 +1,156 7.96% ✗ $46K
Feb 28, 2025 Mar 7, 2025 Chen Yun-Lung VP, Business Development Neutral 90.0 +8,117 13.09% ✗ -
Feb 28, 2025 Mar 7, 2025 Lee Chan W COO Sell 95.0 +21,613 19.66% ✗ $116.2K
Feb 28, 2025 Mar 7, 2025 Kohn Leslie Chief Technology Officer Sell 82.5 +23,300 2.43% ✗ $127.6K
Feb 28, 2025 Mar 7, 2025 Ju Chi-Hong President Sell 90.0 +15,302 9.24% ✗ $102.4K
Feb 28, 2025 Mar 7, 2025 Wang Feng-Ming CEO Sell 90.0 +46,040 6.10% ✗ $226.2K
Mar 4, 2025 Breithaupt Chantelle Yvette Director Neutral 52.5 - 0.00% ✗ -
Jan 15, 2025 Jan 17, 2025 RICHARDSON DAVID JEFFREY Director Neutral 52.5 - 0.00% ✗ -
Jan 15, 2025 Jan 17, 2025 Lee Chan W COO Sell 45.0 -2,000 -1.79% ✓ $153.1K
Jan 10, 2025 Jan 14, 2025 Lee Chan W COO Sell 41.3 -3,000 -2.61% ✓ $223.3K
Jan 6, 2025 Jan 8, 2025 Lee Chan W COO Sell 41.3 -3,000 -2.54% ✓ $231.4K
Jan 3, 2025 Jan 7, 2025 Day Christopher VP, Marketing Sell 22.5 -1,247 -7.90% ✗ $97.4K
Jan 2, 2025 Jan 3, 2025 Lee Chan W COO Sell 45.0 -2,000 -1.67% ✓ $148.4K
Dec 26, 2024 Dec 26, 2024 PAISLEY CHRISTOPHER B Director Sell 37.5 -1,500 -3.55% ✓ $110.7K
Dec 18, 2024 Dec 20, 2024 Schwarting Elizabeth M Director Sell 26.3 -253 -3.10% ✗ $18.1K
Dec 18, 2024 Dec 20, 2024 Day Christopher VP, Marketing Sell 22.5 -929 -5.56% ✗ $70K
Dec 16, 2024 Dec 18, 2024 Young John Alexander CFO Sell 22.5 -2,136 -2.06% ✗ $161.1K
Dec 16, 2024 Dec 18, 2024 Day Christopher VP, Marketing Sell 26.3 -482 -2.80% ✗ $36.3K
Dec 16, 2024 Dec 18, 2024 Lee Chan W COO Sell 22.5 -1,488 -1.23% ✗ $112.2K
Dec 16, 2024 Dec 18, 2024 Kohn Leslie Chief Technology Officer Sell 47.5 -1,757 -0.18% ✗ $132.5K
Dec 16, 2024 Dec 18, 2024 Ju Chi-Hong President Sell 32.5 -1,048 -0.63% ✗ $79K
Dec 16, 2024 Dec 18, 2024 Wang Feng-Ming CEO Sell 30.0 -4,296 -0.57% ✗ $324K
Dec 13, 2024 Dec 16, 2024 Hon Hsiao-Wuen Director Sell 26.3 -377 -1.32% ✗ $28K
Dec 9, 2024 Dec 10, 2024 Ju Chi-Hong President Sell 20.0 -5,711 -3.31% ✗ $387.5K
Dec 4, 2024 Dec 6, 2024 Ju Chi-Hong President Neutral 52.5 - 0.00% ✗ -
Dec 2, 2024 Dec 3, 2024 Day Christopher VP, Marketing Sell 22.5 -1,278 -6.92% ✗ $91.5K
Oct 7, 2024 Oct 9, 2024 Wang Feng-Ming CEO Neutral 27.5 -40,000 -5.00% ✗ -
Oct 3, 2024 Oct 4, 2024 Day Christopher VP, Marketing Sell 22.5 -2,904 -13.59% ✗ $168.4K
Sep 25, 2024 Sep 26, 2024 PAISLEY CHRISTOPHER B Director Sell 48.8 -500 -1.17% ✓ $26.9K
Sep 24, 2024 Sep 25, 2024 Schwarting Elizabeth M Director Sell 26.3 -913 -10.07% ✗ $50K
Sep 17, 2024 Sep 19, 2024 Young John Alexander CFO Sell 22.5 -2,139 -2.02% ✗ $114.5K
Sep 17, 2024 Sep 19, 2024 Day Christopher VP, Marketing Sell 26.3 -483 -2.21% ✗ $25.9K
Sep 17, 2024 Sep 19, 2024 Lee Chan W COO Sell 22.5 -1,490 -1.21% ✗ $79.8K
Sep 17, 2024 Sep 19, 2024 Kohn Leslie Chief Technology Officer Sell 47.5 -1,608 -0.17% ✗ $86.1K
Sep 17, 2024 Sep 19, 2024 Ju Chi-Hong President Sell 32.5 -1,050 -0.61% ✗ $56.2K
Sep 17, 2024 Sep 19, 2024 Wang Feng-Ming CEO Sell 32.5 -4,301 -0.54% ✗ $230.3K
Sep 16, 2024 Sep 18, 2024 Schwarting Elizabeth M Director Sell 26.3 -240 -2.58% ✗ $12.8K
Sep 4, 2024 Sep 6, 2024 Wang Feng-Ming CEO Sell 17.5 -36,000 -2.19% ✗ $2M
Sep 3, 2024 Sep 5, 2024 Chen Yun-Lung VP, Business Development Sell 20.0 -5,963 -8.77% ✗ $343.2K
Aug 29, 2024 Aug 30, 2024 De Greef-Safft Anne Director Neutral 90.0 +3,374 45.61% ✗ -
Aug 29, 2024 Aug 30, 2024 Schwarting Elizabeth M Director Neutral 90.0 +3,374 56.86% ✗ -
Aug 29, 2024 Aug 30, 2024 Hon Hsiao-Wuen Director Neutral 90.0 +3,374 13.35% ✗ -
Aug 29, 2024 Aug 30, 2024 RICHARDSON DAVID JEFFREY Director Neutral 90.0 +3,374 15.04% ✗ -
Aug 29, 2024 Aug 30, 2024 PAISLEY CHRISTOPHER B Director Neutral 85.0 +3,374 8.56% ✗ -
Aug 29, 2024 Aug 30, 2024 Hu Chenming Director Neutral 90.0 +3,374 14.27% ✗ -
Jul 8, 2024 Jul 10, 2024 Day Christopher VP, Marketing Sell 22.5 -1,408 -6.12% ✗ $86.8K
Jun 26, 2024 Jun 28, 2024 RICHARDSON DAVID JEFFREY Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2024 Jun 27, 2024 Ju Chi-Hong President Sell 20.0 -6,000 -3.35% ✗ $317.4K
Jun 21, 2024 Jun 24, 2024 Ju Chi-Hong President Sell 20.0 -8,900 -4.73% ✗ $494.2K
Jun 18, 2024 Jun 20, 2024 Young John Alexander CFO Sell 22.5 -2,157 -2.01% ✗ $119.7K
Jun 18, 2024 Jun 20, 2024 Day Christopher VP, Marketing Sell 26.3 -487 -2.07% ✗ $27K
Jun 18, 2024 Jun 20, 2024 Lee Chan W COO Sell 22.5 -1,504 -1.21% ✗ $83.4K
Jun 18, 2024 Jun 20, 2024 Kohn Leslie Chief Technology Officer Sell 47.5 -1,623 -0.17% ✗ $90K