AMBA
AMBARELLA INC
NASDAQ · Technology · Semiconductors · US
$62.76
+1.72%0
Insider buys (3m)
6
Insider sells (3m)
-$1.1M
Net value (3m)
-4.0%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 28, 2026 | PAISLEY CHRISTOPHER B · director | Sale | 250 | $71 |
| Sep 21, 2026 | Young John Alexander · officer: CFO | Sale | 1,896 | $67 |
| Sep 18, 2026 | Wang Feng-Ming · director, officer: CEO | Sale | 6,086 | $65 |
| Sep 18, 2026 | Ju Chi-Hong · officer: Senior VP, Systems & GM | Sale | 2,009 | $65 |
| Sep 18, 2026 | Young John Alexander · officer: CFO | Sale | 3,126 | $65 |
| Sep 18, 2026 | Lee Chan W · officer: Chief Operations Officer | Sale | 2,893 | $65 |
| Sep 10, 2026 | Hu Chenming · director | A-Award | 3,151 | $0.00 |
| Sep 10, 2026 | Hon Hsiao-Wuen · director | A-Award | 3,151 | $0.00 |
| Sep 10, 2026 | Bryant Gregory M · director | A-Award | 3,151 | $0.00 |
| Sep 10, 2026 | PAISLEY CHRISTOPHER B · director | A-Award | 3,151 | $0.00 |
| Sep 10, 2026 | Schwarting Elizabeth M · director | A-Award | 3,151 | $0.00 |
| Sep 10, 2026 | RICHARDSON DAVID JEFFREY · director | A-Award | 3,151 | $0.00 |
| Sep 10, 2026 | Breithaupt Chantelle Yvette · director | A-Award | 3,151 | $0.00 |
| Jul 10, 2026 | Chen Yun-Lung · officer: VP, Business Dev. & Marketing | Sale | 5,958 | $79 |
| Jul 2, 2026 | Ju Chi-Hong · officer: Senior VP, Systems & GM | Sale | 10,000 | $89 |
| Jul 2, 2026 | Wang Feng-Ming · director, officer: CEO | Sale | 16,250 | $90 |
| Jun 30, 2026 | PAISLEY CHRISTOPHER B · director | Sale | 250 | $62 |
| Jun 18, 2026 | Young John Alexander · officer: CFO | Sale | 1,847 | $67 |
| Jun 18, 2026 | Ju Chi-Hong · officer: Senior VP, Systems & GM | Sale | 2,017 | $68 |
| Jun 18, 2026 | Lee Chan W · officer: Chief Operations Officer | Sale | 2,951 | $68 |
| Jun 18, 2026 | Young John Alexander · officer: CFO | Sale | 3,186 | $68 |
| Jun 18, 2026 | Wang Feng-Ming · director, officer: CEO | Sale | 6,204 | $68 |
| Jun 16, 2026 | Chen Yun-Lung · officer: VP, Business Development and | Sale | 9,856 | $67 |
| May 28, 2026 | Wang Feng-Ming · director, officer: CEO | Sale | 17,285 | $90 |
| May 28, 2026 | Young John Alexander · officer: CFO | Sale | 400 | $96 |
| May 28, 2026 | Wang Feng-Ming · director, officer: CEO | Sale | 6,065 | $91 |
| May 28, 2026 | Wang Feng-Ming · director, officer: CEO | Sale | 9,150 | $92 |
| May 28, 2026 | Young John Alexander · officer: CFO | M-Exempt | 400 | $56 |
| Apr 22, 2026 | Young John Alexander · officer: CFO | Sale | 1,971 | $60 |
| Mar 19, 2026 | Chen Yun-Lung · officer: VP, Business Development and M | M-Exempt | 4,651 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 154Increased 231Reduced 181Sold out 56
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 3,944,592 | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 3,789,215 | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3,716,863 | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 3,688,405 | Aug 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 2,598,976 | Aug 14, 2026 |
| STATE STREET CORP | Increased | 2,562,733 | Sep 22, 2026 |
| STATE STREET CORP | Increased | 1,976,464 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1,873,539 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1,814,603 | May 15, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Increased | 1,586,082 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | Increased | 1,512,539 | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 1,258,362 | May 15, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Reduced | 1,186,541 | Sep 9, 2026 |
| Legal & General Group Plc | Increased | 1,116,729 | Aug 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1,098,120 | Aug 12, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 28, 2026