AMBARELLA INC (AMBA)
$70.85-$0.31 (-0.44%) Today
Yun-Lung Chen - Officer
Chi-Hong Ju - Officer
Feng-Ming Wang - Officer
John Alexander Young - OfficerJohn Alexander Young - Officer
Chan W. Lee - OfficerChi-Hong Ju - OfficerAmbarella Inc is a developer of low-power system-on-a-chip, or SoC, semiconductors and software for edge and physical artificial intelligence (AI) applications and intelligent automation. Its products are used in a wide variety of human viewing, computer vision for edge and physical AI applications, including a variety of video security cameras, automotive camera systems, fixed robots, autonomous mobile robots (AMRs), industrial applications, intelligent transportation systems, and consumer devices, such as action, drone and 360 degree cameras. The company operates as a single operating and reportable segment and derives substantially all of its revenue from development and sales of low-power AI-based processing and video and image processing SoC solutions.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 10 | 58,519 | $4.60M |
| Bona-fide gift | 1 | 10,000 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
60 Form 4 filings on record, the earliest from Oct 4, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Yun-Lung Chen - Officer | Open-market sale | Ordinary Shares | 5,958 | $78.66 | $469K | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 10,000 | $88.84 | $888K | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 16,250 | $90.08 | $1.46M | |
| Christopher B. Paisley - Director | Open-market sale | Ordinary Shares | 250 | $62.01 | $16K | |
| John Alexander Young - Officer | Open-market sale | Ordinary Shares | 3,186 | $67.87 | $216K | |
| John Alexander Young - Officer | Open-market sale | Ordinary Shares | 1,847 | $66.98 | $124K | |
| Chan W. Lee - Officer | Open-market sale | Ordinary Shares | 2,951 | $67.87 | $200K | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 2,017 | $67.87 | $137K | |
| Feng-Ming Wang - Officer | Gift | Ordinary Shares | 10,000 | $0.00 | - | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 6,204 | $67.87 | $421K | |
| Yun-Lung Chen - Officer | Open-market sale | Ordinary Shares | 9,856 | $67.06 | $661K | |
| John Alexander Young - Officer | Option exercise | Ordinary Shares | 400 | $55.80 | $22K | |
| John Alexander Young - Officer | Open-market sale | Ordinary Shares | 400 | $96.00 | $38K | |
| John Alexander Young - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 400 | $0.00 | - | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 17,285 | $90.38 | $1.56M | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 6,065 | $91.23 | $553K | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 9,150 | $92.05 | $842K | |
| John Alexander Young - Officer | Open-market sale | Ordinary Shares | 1,971 | $60.00 | $118K | |
| John Alexander Young - Officer | Option exercise | Ordinary Shares | 3,556 | - | - | |
| John Alexander Young - Officer | Open-market sale | Ordinary Shares | 4,577 | $52.77 | $242K | |
| John Alexander Young - Officer | Grant or award | Ordinary Shares | 5,560 | $0.00 | - | |
| John Alexander Young - Officer | Open-market sale | Ordinary Shares | 3,038 | $54.14 | $164K | |
| John Alexander Young - Officer | Option exercise | Performance Stock Units | 3,556 | $0.00 | - | |
| Yun-Lung Chen - Officer | Option exercise | Ordinary Shares | 4,651 | - | - | |
| Yun-Lung Chen - Officer | Grant or award | Ordinary Shares | 2,849 | $0.00 | - | |
| Yun-Lung Chen - Officer | Option exercise | Performance Stock Units | 4,651 | $0.00 | - | |
| Chan W. Lee - Officer | Open-market sale | Ordinary Shares | 6,729 | $52.77 | $355K | |
| Chan W. Lee - Officer | Grant or award | Ordinary Shares | 7,320 | $0.00 | - | |
| Chan W. Lee - Officer | Open-market sale | Ordinary Shares | 3,641 | $54.14 | $197K | |
| Chan W. Lee - Officer | Option exercise | Performance Stock Units | 13,678 | $0.00 | - | |
| Chan W. Lee - Officer | Option exercise | Ordinary Shares | 13,678 | - | - | |
| Chi-Hong Ju - Officer | Option exercise | Ordinary Shares | 9,553 | - | - | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 4,729 | $52.77 | $250K | |
| Chi-Hong Ju - Officer | Grant or award | Ordinary Shares | 5,930 | $0.00 | - | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 2,155 | $54.14 | $117K | |
| Chi-Hong Ju - Officer | Option exercise | Performance Stock Units | 9,553 | $0.00 | - | |
| Feng-Ming Wang - Officer | Option exercise | Ordinary Shares | 27,598 | - | - | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 18,976 | $52.77 | $1.00M | |
| Feng-Ming Wang - Officer | Grant or award | Ordinary Shares | 15,686 | $0.00 | - | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 8,083 | $54.14 | $438K | |
| Feng-Ming Wang - Officer | Option exercise | Performance Stock Units | 27,598 | $0.00 | - | |
| John Alexander Young - Officer | Grant or award | Ordinary Shares | 15,201 | $0.00 | - | |
| John Alexander Young - Officer | Grant or award | Performance Stock Units | 15,201 | $0.00 | - | |
| Yun-Lung Chen - Officer | Grant or award | Performance Stock Units | 7,220 | $0.00 | - | |
| Yun-Lung Chen - Officer | Grant or award | Ordinary Shares | 7,220 | $0.00 | - | |
| Chan W. Lee - Officer | Grant or award | Ordinary Shares | 24,701 | $0.00 | - | |
| Chan W. Lee - Officer | Grant or award | Performance Stock Units | 24,701 | $0.00 | - | |
| Chi-Hong Ju - Officer | Grant or award | Ordinary Shares | 17,329 | $0.00 | - | |
| Chi-Hong Ju - Officer | Grant or award | Performance Stock Units | 17,329 | $0.00 | - | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 1,000 | $56.83 | $57K | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 1,900 | $58.77 | $112K | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 2,600 | $59.53 | $155K | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 32,460 | $60.91 | $1.98M | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 12,040 | $61.42 | $740K | |
| Feng-Ming Wang - Officer | Option exercise | Non-Qualified Stock Option (right to buy) | 50,000 | $0.00 | - | |
| Feng-Ming Wang - Officer | Grant or award | Performance Stock Units | 53,203 | $0.00 | - | |
| Feng-Ming Wang - Officer | Option exercise | Ordinary Shares | 50,000 | $41.36 | $2.07M | |
| Feng-Ming Wang - Officer | Grant or award | Ordinary Shares | 53,203 | $0.00 | - | |
| Gregory M. Bryant - Director | Grant or award | Ordinary Shares | 2,457 | $0.00 | - | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 7,945 | $70.25 | $558K | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 5,057 | $81.29 | $411K | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 6,156 | $80.96 | $498K | |
| Elizabeth M. Schwarting - Director | Open-market sale | Ordinary Shares | 2,664 | $85.38 | $227K | |
| Chi-Hong Ju - Officer | Open-market sale | Ordinary Shares | 1,168 | $79.43 | $93K | |
| John Alexander Young - Officer | Open-market sale | Ordinary Shares | 2,566 | $79.43 | $204K | |
| Chan W. Lee - Officer | Open-market sale | Ordinary Shares | 1,947 | $79.43 | $155K | |
| Feng-Ming Wang - Officer | Open-market sale | Ordinary Shares | 4,928 | $79.43 | $391K |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
AMBARELLA INC (AMBA) had 9 insider filings in the last 90 days, with the most recent on 2026-07-10. The full record for AMBA runs to 60 Form 4 filings, the earliest from 2024-10-04. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of AMBA were filed in the last 90 days.
10 insider sales of AMBA were filed in the last 90 days, totaling $4.60M.
This page tracks AMBA Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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