Ambarella Inc (AMBA): Congress and insider trades
Who in Congress and inside the company traded AMBA, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Ambarella Inc (AMBA) is a listed stock on NASDAQ.
- Insiders filed 0 open market buys worth $0 and 21 sells worth $10M, the latest filed 2026-09-28 (28 September 2026).
- Data as of 2026-09-29 (29 September 2026).
Insider trades in AMBA
as of 2026-09-28| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 28 Sep 2026 | PAISLEY CHRISTOPHER B | sell | 250 | $70.76 | $17.7K | n/a |
| 10 Jul 2026 | Chen Yun-Lung | sell | 5,958 | $78.66 | $469K | n/a |
| 2 Jul 2026 | Ju Chi-Hong | sell | 10,000 | $88.84 | $888K | n/a |
| 2 Jul 2026 | Wang Feng-Ming | sell | 16,250 | $90.08 | $1.5M | n/a |
| 30 Jun 2026 | PAISLEY CHRISTOPHER B | sell | 250 | $62.01 | $15.5K | n/a |
| 18 Jun 2026 | Ju Chi-Hong | sell | 2,017 | $67.87 | $137K | n/a |
| 18 Jun 2026 | Lee Chan W | sell | 2,951 | $67.87 | $200K | n/a |
| 18 Jun 2026 | Young John Alexander | sell | 5,033 | $67.54 | $340K | n/a |
| 18 Jun 2026 | Wang Feng-Ming | sell | 6,204 | $67.87 | $421K | n/a |
| 16 Jun 2026 | Chen Yun-Lung | sell | 9,856 | $67.06 | $661K | n/a |
| 28 May 2026 | Wang Feng-Ming | sell | 32,500 | $91.01 | $3.0M | n/a |
| 28 May 2026 | Young John Alexander | sell | 400 | $96.00 | $38.4K | n/a |
| 22 Apr 2026 | Young John Alexander | sell | 1,971 | $60.00 | $118K | n/a |
| 19 Mar 2026 | Lee Chan W | sell | 6,729 | $52.77 | $355K | n/a |
| 19 Mar 2026 | Young John Alexander | sell | 3,038 | $54.14 | $164K | n/a |
| 19 Mar 2026 | Ju Chi-Hong | sell | 4,729 | $52.77 | $250K | n/a |
| 19 Mar 2026 | Lee Chan W | sell | 3,641 | $54.14 | $197K | n/a |
| 19 Mar 2026 | Wang Feng-Ming | sell | 18,976 | $52.77 | $1.0M | n/a |
| 19 Mar 2026 | Young John Alexander | sell | 4,577 | $52.77 | $242K | n/a |
| 19 Mar 2026 | Wang Feng-Ming | sell | 8,083 | $54.14 | $438K | n/a |
| 19 Mar 2026 | Ju Chi-Hong | sell | 2,155 | $54.14 | $117K | n/a |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought AMBA?
0 Congress buys by 0 members and 0 insider buys are on file. The tables on this page list every one.
Did buying AMBA after a disclosure beat the market?
No disclosed buy of this stock has matured 90 days yet. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.