Nasdaq · CIK 0001280263
AMBA AMBARELLA INC
Insider trading from SEC Form 4. Last filing 14 d ago. Close $67.43 on Oct 9, 2026, +39% from the 52-week low and -29% from the high.
Last 90 days
Net insider value
-$1.1M
more sold than bought
Buys
0
$0 by 0 insiders
Sells
6
$1.1M by 5 insiders
Insiders on file
14
with a Form 4 at this company
Price and insider trades, last year
AMBAOct 9, 2026 · close 67.43
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at AMBARELLA INC, scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 10Weak | Christopher B Paisley director sell | $18k 250 shares | -1% | +49% from low-24% from high | |
| 28Weak | John Alexander Young CFO sell | $128k 1,896 shares | -2% | +36% from low-31% from high | |
| 49Moderate | John Alexander Young CFO sell | $203k 3,126 shares | -3% | +38% from low-30% from high | |
| 47Moderate | Chan W Lee Chief Operations Officer sell | $188k 2,893 shares | -2% | +38% from low-30% from high | |
| 41Moderate | Chi-Hong Ju Senior VP, Systems & GM sell | $130k 2,009 shares | -1% | +38% from low-30% from high | |
| 56Moderate | Feng-Ming Wang CEO sell | $395k 6,086 shares | -1% | +38% from low-30% from high | |
| 18Weak | Christopher B Paisley director sell | $63k 1,000 shares | -2% | +61% from low-22% from high | |
| 53Moderate | Feng-Ming Wang CEO sell | $244k 4,677 shares | -1% | +30% from low-37% from high | |
| 37Weak | Chi-Hong Ju Sr. Vice President, Systems sell | $58k 1,108 shares | -1% | +30% from low-37% from high | |
| 39Weak | Leslie Kohn Chief Technology Officer sell | $90k 1,715 shares | -0% | +30% from low-37% from high | |
| 44Moderate | Chan W Lee Chief Operating Officer sell | $84k 1,601 shares | -1% | +30% from low-37% from high | |
| 30Weak | Christopher Day VP, Marketing sell | $18k 342 shares | -2% | +30% from low-37% from high | |
| 48Moderate | John Alexander Young CFO sell | $127k 2,435 shares | -2% | +30% from low-37% from high | |
| 15Weak | Christopher B Paisley director sell | $28k 500 shares | -1% | +14% from low-33% from high | |
| 52Moderate | Feng-Ming Wang CEO sell | $176k 3,194 shares | -0% | +10% from low-35% from high | |
| 37Weak | Chi-Hong Ju Sr. Vice President, Systems sell | $57k 1,034 shares | -1% | +10% from low-35% from high | |
| 39Weak | Leslie Kohn Chief Technology Officer sell | $87k 1,584 shares | -0% | +10% from low-35% from high | |
| 44Moderate | Chan W Lee Chief Operating Officer sell | $81k 1,468 shares | -1% | +10% from low-35% from high | |
| 35Weak | Christopher Day VP, Marketing sell | $26k 479 shares | -3% | +10% from low-35% from high | |
| 47Moderate | John Alexander Young CFO sell | $116k 2,103 shares | -2% | +10% from low-35% from high | |
| 53Moderate | Feng-Ming Wang CEO sell | $226k 4,104 shares | -1% | +2% from low-35% from high | |
| 40Moderate | Chi-Hong Ju Sr. Vice President, Systems sell | $102k 1,859 shares | -1% | +2% from low-35% from high | |
| 41Moderate | Leslie Kohn Chief Technology Officer sell | $128k 2,316 shares | -0% | +2% from low-35% from high | |
| 45Moderate | Chan W Lee Chief Operating Officer sell | $116k 2,108 shares | -2% | +2% from low-35% from high | |
| 36Weak | Christopher Day VP, Marketing sell | $46k 834 shares | -5% | +2% from low-35% from high | |
| 48Moderate | John Alexander Young CFO sell | $147k 2,663 shares | -2% | +2% from low-35% from high | |
| 19Weak | Chan W Lee Chief Operating Officer sell | $153k 2,000 shares | -2% | +45% from low-3% from high | |
| 20Weak | Chan W Lee Chief Operating Officer sell | $223k 3,000 shares | -3% | +44% from low-3% from high | |
| 28Weak | Chan W Lee Chief Operating Officer sell | $231k 3,000 shares | -3% | +49% from low0% from high | |
| 40Moderate | Christopher Day VP, Marketing sell | $97k 1,247 shares | -8% | +48% from low0% from high | |
| 26Weak | Chan W Lee Chief Operating Officer sell | $148k 2,000 shares | -2% | +41% from low-3% from high | |
| 20Weak | Christopher B Paisley director sell | $111k 1,500 shares | -4% | +43% from low-2% from high | |
| 38Weak | Christopher Day VP, Marketing sell | $70k 929 shares | -6% | - | |
| 30Weak | Elizabeth M Schwarting director sell | $18k 253 shares | -3% | - | |
| 54Moderate | Feng-Ming Wang CEO sell | $324k 4,296 shares | -1% | - | |
| 39Weak | Chi-Hong Ju Sr. Vice President, Systems sell | $79k 1,048 shares | -1% | - | |
| 41Moderate | Leslie Kohn Chief Technology Officer sell | $132k 1,757 shares | -0% | - | |
| 45Moderate | Chan W Lee Chief Operating Officer sell | $112k 1,488 shares | -1% | - | |
| 36Weak | Christopher Day VP, Marketing sell | $36k 482 shares | -3% | - | |
| 48Moderate | John Alexander Young CFO sell | $161k 2,136 shares | -2% | - | |
| 35Weak | Hsiao-Wuen Hon director sell | $28k 377 shares | -1% | - | |
| 46Moderate | Chi-Hong Ju Sr. Vice President, Systems sell | $387k 5,118 shares | -3% | - | |
| 39Weak | Christopher Day VP, Marketing sell | $92k 1,278 shares | -7% | - |
Transactions
The last 83 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 25, 2026 | Christopher B Paisley director | SOpen-market sale Ordinary Shares10b5-1 | -250 | $70.76 | $18k | 43,930 | 14 d ago |
| Sep 18, 2026 | John Alexander Young CFO | SOpen-market sale Ordinary Shares10b5-1 | -1,896 | $67.28 | $128k | 107,806 | 21 d ago |
| Sep 17, 2026 | John Alexander Young CFO | SOpen-market sale Ordinary Shares | -3,126 | $64.83 | $203k | 109,702 | 24 d ago |
| Sep 17, 2026 | Chan W Lee Chief Operations Officer | SOpen-market sale Ordinary Shares | -2,893 | $64.83 | $188k | 154,443 | 24 d ago |
| Sep 17, 2026 | Chi-Hong Ju Senior VP, Systems & GM | SOpen-market sale Ordinary Shares | -2,009 | $64.83 | $130k | 154,153 | 24 d ago |
| Sep 17, 2026 | Feng-Ming Wang CEO | SOpen-market sale Ordinary Shares | -6,086 | $64.83 | $395k | 767,759 | 24 d ago |
| Sep 8, 2026 | Hsiao-Wuen Hon director | AGrant or award Ordinary Shares | +3,151 | $0.00 | $0 | 33,927 | 32 d ago |
| Sep 8, 2026 | Chenming Hu director | AGrant or award Ordinary Shares | +3,151 | $0.00 | $0 | 32,667 | 32 d ago |
| Sep 8, 2026 | Gregory M Bryant director | AGrant or award Ordinary Shares | +3,151 | $0.00 | $0 | 5,608 | 32 d ago |
| Sep 8, 2026 | Chantelle Yvette Breithaupt director | AGrant or award Ordinary Shares | +3,151 | $0.00 | $0 | 8,091 | 32 d ago |
| Sep 8, 2026 | Elizabeth M Schwarting director | AGrant or award Ordinary Shares | +3,151 | $0.00 | $0 | 9,841 | 32 d ago |
| Sep 8, 2026 | David Jeffrey Richardson director | AGrant or award Ordinary Shares | +3,151 | $0.00 | $0 | 5,649 | 32 d ago |
| Sep 8, 2026 | Christopher B Paisley director | AGrant or award Ordinary Shares | +3,151 | $0.00 | $0 | 44,180 | 32 d ago |
| Jun 25, 2025 | Christopher B Paisley director | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $62.58 | $63k | 39,281 | Jun 27, 2025 |
| Jun 17, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares | -1,601 | $52.26 | $84k | 128,696 | Jun 20, 2025 |
| Jun 17, 2025 | John Alexander Young CFO | SOpen-market sale Ordinary Shares | -2,435 | $52.26 | $127k | 111,451 | Jun 20, 2025 |
| Jun 17, 2025 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -342 | $52.26 | $18k | 15,099 | Jun 20, 2025 |
| Jun 17, 2025 | Leslie Kohn Chief Technology Officer | SOpen-market sale Ordinary Shares | -1,715 | $52.26 | $90k | 979,677 | Jun 20, 2025 |
| Jun 17, 2025 | Chi-Hong Ju Sr. Vice President, Systems | SOpen-market sale Ordinary Shares | -1,108 | $52.26 | $58k | 171,032 | Jun 20, 2025 |
| Jun 17, 2025 | Feng-Ming Wang CEO | SOpen-market sale Ordinary Shares | -4,677 | $52.26 | $244k | 793,634 | Jun 20, 2025 |
| Mar 25, 2025 | Christopher B Paisley director | SOpen-market sale Ordinary Shares10b5-1 | -500 | $55.50 | $28k | 40,281 | Mar 26, 2025 |
| Mar 18, 2025 | John Alexander Young CFO | SOpen-market sale Ordinary Shares | -2,103 | $55.02 | $116k | 113,886 | Mar 20, 2025 |
| Mar 18, 2025 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -479 | $55.02 | $26k | 15,441 | Mar 20, 2025 |
| Mar 18, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares | -1,468 | $55.02 | $81k | 130,297 | Mar 20, 2025 |
| Mar 18, 2025 | Leslie Kohn Chief Technology Officer | SOpen-market sale Ordinary Shares | -1,584 | $55.02 | $87k | 981,392 | Mar 20, 2025 |
| Mar 18, 2025 | Chi-Hong Ju Sr. Vice President, Systems | SOpen-market sale Ordinary Shares | -1,034 | $55.02 | $57k | 172,140 | Mar 20, 2025 |
| Mar 18, 2025 | Feng-Ming Wang CEO | SOpen-market sale Ordinary Shares | -3,194 | $55.02 | $176k | 798,311 | Mar 20, 2025 |
| Mar 17, 2025 | Elizabeth M Schwarting director | DDisposition to issuer Ordinary Shares | -422 | $55.90 | $24k | 7,480 | Mar 18, 2025 |
| Feb 28, 2025 | Feng-Ming Wang CEO | AGrant or award Ordinary Shares | +39,120 | $0.00 | $0 | 794,351 | Mar 7, 2025 |
| Feb 28, 2025 | John Alexander Young CFO | AGrant or award Ordinary Shares | +12,388 | $0.00 | $0 | 113,781 | Mar 7, 2025 |
| Feb 28, 2025 | Yun-Lung Chen VP, Business Development | AGrant or award Ordinary Shares | +5,868 | $0.00 | $0 | 67,894 | Mar 7, 2025 |
| Feb 28, 2025 | Chan W Lee Chief Operating Officer | AGrant or award Ordinary Shares | +18,256 | $0.00 | $0 | 128,174 | Mar 7, 2025 |
| Feb 28, 2025 | Leslie Kohn Chief Technology Officer | AGrant or award Ordinary Shares | +19,560 | $0.00 | $0 | 979,236 | Mar 7, 2025 |
| Feb 28, 2025 | Chi-Hong Ju Sr. Vice President, Systems | AGrant or award Ordinary Shares | +12,388 | $0.00 | $0 | 170,026 | Mar 7, 2025 |
| Mar 5, 2025 | Christopher Day VP, Marketing | AGrant or award Ordinary Shares | +1,990 | $0.00 | $0 | 16,520 | Mar 7, 2025 |
| Mar 5, 2025 | Leslie Kohn Chief Technology Officer | AGrant or award Ordinary Shares | +6,056 | $0.00 | $0 | 985,292 | Mar 7, 2025 |
| Mar 5, 2025 | Chi-Hong Ju Sr. Vice President, Systems | AGrant or award Ordinary Shares | +4,773 | $0.00 | $0 | 174,799 | Mar 7, 2025 |
| Mar 6, 2025 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -834 | $55.11 | $46k | 15,686 | Mar 7, 2025 |
| Mar 5, 2025 | John Alexander Young CFO | AGrant or award Ordinary Shares | +4,637 | $0.00 | $0 | 118,418 | Mar 7, 2025 |
| Mar 5, 2025 | Yun-Lung Chen VP, Business Development | AGrant or award Ordinary Shares | +2,249 | $0.00 | $0 | 70,143 | Mar 7, 2025 |
| Mar 5, 2025 | Chan W Lee Chief Operating Officer | AGrant or award Ordinary Shares | +5,465 | $0.00 | $0 | 133,639 | Mar 7, 2025 |
| Mar 5, 2025 | Feng-Ming Wang CEO | AGrant or award Ordinary Shares | +11,024 | $0.00 | $0 | 805,375 | Mar 7, 2025 |
| Mar 6, 2025 | John Alexander Young CFO | SOpen-market sale Ordinary Shares | -2,663 | $55.11 | $147k | 115,755 | Mar 7, 2025 |
| Mar 6, 2025 | Feng-Ming Wang CEO | SOpen-market sale Ordinary Shares | -4,104 | $55.11 | $226k | 801,271 | Mar 7, 2025 |
| Mar 6, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares | -2,108 | $55.11 | $116k | 131,531 | Mar 7, 2025 |
| Feb 28, 2025 | Yun-Lung Chen VP, Business Development | AGrant or award Performance Stock Unitsderivative | +5,868 | $0.00 | $0 | 5,868 | Mar 7, 2025 |
| Mar 6, 2025 | Leslie Kohn Chief Technology Officer | SOpen-market sale Ordinary Shares | -2,316 | $55.11 | $128k | 982,976 | Mar 7, 2025 |
| Mar 6, 2025 | Chi-Hong Ju Sr. Vice President, Systems | SOpen-market sale Ordinary Shares | -1,859 | $55.11 | $102k | 172,940 | Mar 7, 2025 |
| Feb 28, 2025 | Chan W Lee Chief Operating Officer | AGrant or award Performance Stock Unitsderivative | +18,256 | $0.00 | $0 | 18,256 | Mar 7, 2025 |
| Feb 28, 2025 | John Alexander Young CFO | AGrant or award Performance Stock Unitsderivative | +12,388 | $0.00 | $0 | 12,388 | Mar 7, 2025 |
| Feb 28, 2025 | Leslie Kohn Chief Technology Officer | AGrant or award Performance Stock Unitsderivative | +19,560 | $0.00 | $0 | 19,560 | Mar 7, 2025 |
| Feb 28, 2025 | Feng-Ming Wang CEO | AGrant or award Performance Stock Unitsderivative | +39,120 | $0.00 | $0 | 39,120 | Mar 7, 2025 |
| Feb 28, 2025 | Chi-Hong Ju Sr. Vice President, Systems | AGrant or award Performance Stock Unitsderivative | +12,388 | $0.00 | $0 | 12,388 | Mar 7, 2025 |
| Jan 15, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $75.90 | $76k | 110,918 | Jan 17, 2025 |
| Jan 15, 2025 | David Jeffrey Richardson director | GGift Ordinary Shares | -1,648 | $0.00 | $0 | 2,531 | Jan 17, 2025 |
| Jan 16, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $77.21 | $77k | 109,918 | Jan 17, 2025 |
| Jan 15, 2025 | David Jeffrey Richardson director | GGift Ordinary Sharesindirect: by Family Trust | +1,648 | $0.00 | $0 | 23,281 | Jan 17, 2025 |
| Jan 10, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $74.12 | $74k | 113,918 | Jan 14, 2025 |
| Jan 13, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $73.50 | $74k | 112,918 | Jan 14, 2025 |
| Jan 14, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $75.68 | $76k | 111,918 | Jan 14, 2025 |
| Jan 6, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $79.15 | $79k | 116,918 | Jan 8, 2025 |
| Jan 7, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $78.73 | $79k | 115,918 | Jan 8, 2025 |
| Jan 8, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $73.48 | $73k | 114,918 | Jan 8, 2025 |
| Jan 3, 2025 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -1,247 | $78.10 | $97k | 14,530 | Jan 7, 2025 |
| Jan 2, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $73.32 | $73k | 118,918 | Jan 3, 2025 |
| Jan 3, 2025 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares10b5-1 | -1,000 | $75.06 | $75k | 117,918 | Jan 3, 2025 |
| Dec 26, 2024 | Christopher B Paisley director | SOpen-market sale Ordinary Shares10b5-1 | -1,500 | $73.80 | $111k | 40,781 | Dec 26, 2024 |
| Dec 18, 2024 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -81 | $75.41 | $6,108 | 16,625 | Dec 20, 2024 |
| Dec 18, 2024 | Elizabeth M Schwarting director | SOpen-market sale Ordinary Shares | -253 | $71.55 | $18k | 7,902 | Dec 20, 2024 |
| Dec 18, 2024 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -848 | $75.40 | $64k | 15,777 | Dec 20, 2024 |
| Dec 16, 2024 | Feng-Ming Wang CEO | SOpen-market sale Ordinary Shares | -4,296 | $75.41 | $324k | 755,231 | Dec 18, 2024 |
| Dec 16, 2024 | John Alexander Young CFO | SOpen-market sale Ordinary Shares | -2,136 | $75.41 | $161k | 101,393 | Dec 18, 2024 |
| Dec 16, 2024 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -482 | $75.41 | $36k | 16,706 | Dec 18, 2024 |
| Dec 16, 2024 | Chan W Lee Chief Operating Officer | SOpen-market sale Ordinary Shares | -1,488 | $75.41 | $112k | 119,918 | Dec 18, 2024 |
| Dec 16, 2024 | Leslie Kohn Chief Technology Officer | SOpen-market sale Ordinary Shares | -1,757 | $75.41 | $132k | 959,676 | Dec 18, 2024 |
| Dec 16, 2024 | Chi-Hong Ju Sr. Vice President, Systems | SOpen-market sale Ordinary Shares | -1,048 | $75.41 | $79k | 157,638 | Dec 18, 2024 |
| Dec 13, 2024 | Hsiao-Wuen Hon director | SOpen-market sale Ordinary Shares | -377 | $74.15 | $28k | 28,278 | Dec 16, 2024 |
| Dec 9, 2024 | Chi-Hong Ju Sr. Vice President, Systems | GGift Ordinary Shares | -593 | $0.00 | $0 | 163,804 | Dec 10, 2024 |
| Dec 9, 2024 | Chi-Hong Ju Sr. Vice President, Systems | SOpen-market sale Ordinary Shares | -2,118 | $75.69 | $160k | 161,686 | Dec 10, 2024 |
| Dec 9, 2024 | Chi-Hong Ju Sr. Vice President, Systems | SOpen-market sale Ordinary Shares | -3,000 | $75.72 | $227k | 158,686 | Dec 10, 2024 |
| Dec 4, 2024 | Chi-Hong Ju Sr. Vice President, Systems | GGift Ordinary Shares | -5,000 | $0.00 | $0 | 164,397 | Dec 6, 2024 |
| Dec 4, 2024 | Chi-Hong Ju Sr. Vice President, Systems | GGift Ordinary Sharesindirect: by Foundation | +5,000 | $0.00 | $0 | 8,000 | Dec 6, 2024 |
| Dec 2, 2024 | Christopher Day VP, Marketing | SOpen-market sale Ordinary Shares | -1,278 | $71.61 | $92k | 17,188 | Dec 3, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Chantelle Yvette Breithauptcfo, officer, director
- Gregory M Bryantofficer, director
- Yun-Lung ChenVP, Business Development
- Christopher DayVP, Marketing
- Hsiao-Wuen Hondirector
- Chenming Hudirector
- Chi-Hong JuSr. Vice President, Systems
- Leslie KohnChief Technology Officer
- Chan W LeeChief Operating Officer
- Christopher B Paisleydirector
- David Jeffrey Richardsondirector
- Elizabeth M Schwartingdirector
- Feng-Ming WangCEO
- John Alexander YoungCFO
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.