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 |
|---|---|---|---|---|---|---|---|---|---|
| Mar 19, 2026 (view filing) | Mar 17-19 | 2 days | Young John AlexanderCFO | SSale | −7.62K | $53.32 | −$406.0K | −6.0%119.6K after | 2 lots |
| Apr 22, 2026 (view filing) | Apr 21 | 1 day | Young John AlexanderCFO | SSale | −1.97K | $60.00 | −$118.3K | −1.6%117.6K after | 10b5-1 |
| May 28, 2026 (view filing) | May 26 | 2 days | Wang Feng-MingCEO | SSale | −32.5K | $91.01 | −$2.96M | −3.9%806.1K after | 3 lots10b5-1 |
| May 28, 2026 (view filing) | May 26 | 2 days | Young John AlexanderCFO | SSale | −400 | $96.00 | −$38.4K | −0.3%117.6K after | 10b5-1 |
| Jun 16, 2026 (view filing) | Jun 12 | 4 days | Chen Yun-LungVP, Business Development and | SSale | −9.86K | $67.06 | −$660.9K | −12.9%66.5K after | |
| Jun 18, 2026 (view filing) | Jun 17 | 1 day | Wang Feng-MingCEO | SSale | −6.20K | $67.87 | −$421.1K | −0.8%799.9K after | |
| Jun 18, 2026 (view filing) | Jun 17 | 1 day | Ju Chi-HongSenior VP, Systems & GM | SSale | −2.02K | $67.87 | −$136.9K | −1.2%165.9K after | |
| Jun 18, 2026 (view filing) | Jun 17 | 1 day | Lee Chan WChief Operations Officer | SSale | −2.95K | $67.87 | −$200.3K | −1.8%157.1K after | |
| Jun 18, 2026 (view filing) | Jun 17 | 1 day | Young John AlexanderCFO | SSale | −5.03K | $67.54 | −$339.9K | −4.3%112.6K after | 2 lots10b5-1 |
| Jun 30, 2026 (view filing) | Jun 26 | 4 days | Paisley Christopher BDirector | SSale | −250 | $62.01 | −$15.5K | −0.6%41.0K after | 10b5-1 |
| Jul 2, 2026 (view filing)4:57 PM ET | Jul 1 | 1 day | Wang Feng-MingCEO | SSale | −16.3K | $90.08 | −$1.46M | −2.1%773.6K after | 10b5-1 |
| Jul 2, 2026 (view filing)4:58 PM ET | Jul 1 | 1 day | Ju Chi-HongSenior VP, Systems & GM | SSale | −10.0K | $88.84 | −$888.4K | −6.0%155.9K after | |
| Jul 10, 2026 (view filing)4:55 PM ET | Jul 9 | 1 day | Chen Yun-LungVP, Business Dev. & Marketing | SSale | −5.96K | $78.66 | −$468.7K | −9.0%60.6K after | |
| Sep 18, 2026 (view filing)4:50 PM ET | Sep 17 | 1 day | Young John AlexanderCFO | SSale | −3.13K | $64.83 | −$202.7K | −2.8%109.7K after | |
| Sep 18, 2026 (view filing)4:50 PM ET | Sep 17 | 1 day | Lee Chan WChief Operations Officer | SSale | −2.89K | $64.83 | −$187.6K | −1.8%154.4K after | |
| Sep 18, 2026 (view filing)4:50 PM ET | Sep 17 | 1 day | Ju Chi-HongSenior VP, Systems & GM | SSale | −2.01K | $64.83 | −$130.2K | −1.3%154.2K after | |
| Sep 18, 2026 (view filing)4:51 PM ET | Sep 17 | 1 day | Wang Feng-MingCEO | SSale | −6.09K | $64.83 | −$394.6K | −0.8%767.8K after | |
| Sep 21, 2026 (view filing)5:57 PM ET | Sep 18 | 3 days | Young John AlexanderCFO | SSale | −1.90K | $67.28 | −$127.6K | −1.7%107.8K after | 10b5-1 |