SEC Form 4Coverage since May 26, 2026
$AMBA insider trading
Over the last 12 months, Ambarella insiders reported no purchases and 13 sales totaling $7.6M across SEC Form 4 filings. 54% of the activity was filed under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $7.6M 13 events
- Events · 12m
- 13 Form 4 filings, grouped
- Insiders · 12m
- 6 distinct reporters
- 10b5-1 share
- 54% pre-arranged plans
Side
Price · $AMBA · 12Mvia TradingView
Top insiders · 12m
Wang Feng-MingCEO5× · $4.8M
Young John AlexanderCFO2× · $378K
Ju Chi-HongSenior VP, Systems & GM2× · $1.0M
PAISLEY CHRISTOPHER B—1× · $16K
Lee Chan WChief Operations Officer1× · $200K
All insider trades
13 events
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jul 9, 2026 | Chen Yun-LungVP, Business Dev. & Marketing · O | ▼ Sale | 5,958 | $78.66 | $469K | -9% | — |
| Jul 1, 2026 | Ju Chi-HongSenior VP, Systems & GM · O | ▼ Sale | 10,000 | $88.84 | $888K | -6% | — |
| Jul 1, 2026 | Wang Feng-MingCEO · O·D | ▼ Sale | 16,250 | $90.08 | $1.5M | -2.1% | plan |
| Jun 26, 2026 | PAISLEY CHRISTOPHER BD | ▼ Sale | 250 | $62.01 | $16K | -0.6% | plan |
| Jun 17, 2026 | Young John AlexanderCFO · O | ▼ Sale | 5,033 | $67.54 | $340K | -4.3% | plan · 2 tranches |
| Jun 17, 2026 | Lee Chan WChief Operations Officer · O | ▼ Sale | 2,951 | $67.87 | $200K | -1.8% | — |
| Jun 17, 2026 | Ju Chi-HongSenior VP, Systems & GM · O | ▼ Sale | 2,017 | $67.87 | $137K | -1.2% | — |
| Jun 17, 2026 | Wang Feng-MingCEO · O·D | ▼ Sale | 6,204 | $67.87 | $421K | -0.8% | — |
| Jun 12, 2026 | Chen Yun-LungVP, Business Development and · O | ▼ Sale | 9,856 | $67.06 | $661K | -12.9% | — |
| May 26, 2026 | Young John AlexanderCFO · O | ▼ Sale | 400 | $96 | $38K | -0.3% | plan |
| May 26, 2026 | Wang Feng-MingCEO · O·D | ▼ Sale | 9,150 | $92.05 | $842K | -1.1% | plan |
| May 26, 2026 | Wang Feng-MingCEO · O·D | ▼ Sale | 6,065 | $91.23 | $553K | -0.7% | plan |
| May 26, 2026 | Wang Feng-MingCEO · O·D | ▼ Sale | 17,285 | $90.38 | $1.6M | -2.1% | plan |
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $AMBA feed.