Ambarella Inc
AMBA- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001280263
In the last 90 days, Ambarella Inc insiders filed 0 open-market purchases and 8 sales; 341 institutions reported holding it in 13F filings for Q2 2026, worth $3.13B in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Ambarella Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 8 filings
- 5 insiders, $3.86M in total
- Insiders trading
- 5
- Net value
- −$3.86M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Ambarella Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Young John Alexander | CFO | 107,806 | Sep 21, 2026 | 8 |
| Wang Feng-Ming | CEO | 767,759 | Sep 18, 2026 | 7 |
| Ju Chi-Hong | Senior VP, Systems & GM | 154,153 | Sep 18, 2026 | 9 |
| Lee Chan W | Chief Operations Officer | 154,443 | Sep 18, 2026 | 5 |
| Hu Chenming | Director | 32,667 | Sep 10, 2026 | 1 |
| Bryant Gregory M | Director | 5,608 | Sep 10, 2026 | 2 |
| Breithaupt Chantelle Yvette | Director | 8,091 | Sep 10, 2026 | 1 |
| Schwarting Elizabeth M | Director | 9,841 | Sep 10, 2026 | 3 |
| Hon Hsiao-Wuen | Director | 33,927 | Sep 10, 2026 | 1 |
| Richardson David Jeffrey | Director | 5,649 | Sep 10, 2026 | 2 |
| Paisley Christopher B | Director | 44,180 | Sep 10, 2026 | 3 |
| Chen Yun-Lung | VP, Business Dev. & Marketing | 60,557 | Jul 10, 2026 | 4 |
| Kohn Leslie | Chief Technology Officer | 977,428 | Sep 19, 2025 | 0 |
| Day Christopher | VP, Marketing | 15,099 | Jun 20, 2025 | 0 |
| De Greef-Safft Anne | Director | 10,772 | Aug 30, 2024 | 0 |
| White Brian C | CFO | 74,140 | Dec 21, 2023 | 0 |
| Verhalen Andrew W | Director | 83,734 | Sep 1, 2023 | 0 |
| Eichler Kevin C | CFO | 73,259 | Mar 18, 2022 | 0 |
| Meng Teresa H | Director | 6,606 | Mar 18, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 17, 2021 (view filing) | Dec 16 | 1 day | Ju Chi-HongSr. Vice President, Systems | SSale | −1.59K | $188.90 | −$301.3K | −1.2%135.5K after | |
| Dec 17, 2021 (view filing) | Dec 16 | 1 day | Wang Feng-MingCEO | SSale | −4.75K | $188.91 | −$897.9K | −0.7%633.5K after | |
| Dec 10, 2021 (view filing) | Dec 9 | 1 day | Richardson David JeffreyDirector | SSale | −8.05K | $216.00 | −$1.74M | −35.6%14.6K after | |
| Dec 8, 2021 (view filing) | Dec 7 | 1 day | Day ChristopherVP, Marketing | SSale | −3.50K | $207.79 | −$726.4K | −30.7%7.89K after | 3 lots |
| Dec 8, 2021 (view filing) | Dec 7 | 1 day | Meng Teresa HDirector | SSale | −959 | $221.71 | −$212.6K | −14.1%5.85K after | |
| Dec 8, 2021 (view filing) | Dec 6 | 2 days | Paisley Christopher BDirector | SSale | −736 | $190.72 | −$140.4K | −2.4%30.5K after | |
| Dec 7, 2021 (view filing) | Dec 3 | 4 days | Eichler Kevin CCFO | SSale | −4.72K | $192.68 | −$908.7K | −9.0%47.8K after | |
| Dec 7, 2021 (view filing) | Dec 3 | 4 days | Day ChristopherVP, Marketing | SSale | −832 | $192.69 | −$160.3K | −6.8%11.4K after | |
| Dec 7, 2021 (view filing) | Dec 3 | 4 days | Chen Yun-LungVP, Business Development | SSale | −12.0K | $198.32 | −$2.38M | −22.7%40.9K after | 2 lots |
| Dec 7, 2021 (view filing) | Dec 3 | 4 days | Lee Chan WChief Operating Officer | SSale | −2.81K | $192.69 | −$541.1K | −11.2%22.2K after | |
| Dec 7, 2021 (view filing) | Dec 3 | 4 days | Kohn LeslieChief Technology Officer | SSale | −3.41K | $192.69 | −$657.8K | −0.4%870.1K after | |
| Dec 7, 2021 (view filing) | Dec 3 | 4 days | Ju Chi-HongSr. Vice President, Systems | SSale | −1.50K | $192.69 | −$288.1K | −1.1%134.2K after | |
| Dec 7, 2021 (view filing) | Dec 3 | 4 days | Wang Feng-MingCEO | SSale | −4.45K | $192.69 | −$857.9K | −0.7%644.6K after | |
| Sep 24, 2021 (view filing) | Sep 22 | 2 days | Hu ChenmingDirector | SSale | −3.67K | $160.00 | −$586.6K | −26.4%10.2K after | |
| Sep 10, 2021 (view filing) | Sep 9 | 1 day | Hu ChenmingDirector | SSale | −4.00K | $140.00 | −$560.0K | −23.6%13.0K after | |
| Sep 8, 2021 (view filing) | Sep 3 | 5 days | Eichler Kevin CCFO | SSale | −10.0K | $133.30 | −$1.33M | −18.7%43.4K after | 5 lots |
| Sep 7, 2021 (view filing) | Sep 3 | 4 days | Paisley Christopher BDirector | SSale | −736 | $132.44 | −$97.5K | −2.4%29.6K after | |
| Sep 2, 2021 (view filing) | Sep 1 | 1 day | Hu ChenmingDirector | SSale | −4.00K | $120.00 | −$480.0K | −19.1%17.0K after |