AMBA
Ambarella, Inc.
NASDAQ · USTechnologySemiconductors
$65.26+5.53%
Price as of Jul 20, 2026
AMBA ownership
Ambarella, Inc. ownership & insider activity
Latest available institutional positioning and SEC Form 4 insider transactions, coalesced at the company entity level when listings share coverage.
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
15
Net (3m)
-$7.7M
Insider trades by month Buys Sells
Jan
Mar
Apr
May
Jun
Jul
Context3-month price +28.1%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 10, 2026 | Chen Yun-Lungofficer: VP, Business Dev. & Marketing | Sell | 5,958 | $78.66 |
| Jul 2, 2026 | Ju Chi-Hongofficer: Senior VP, Systems & GM | Sell | 10,000 | $88.84 |
| Jul 2, 2026 | Wang Feng-Mingdirector, officer: CEO | Sell | 16,250 | $90.08 |
| Jun 30, 2026 | PAISLEY CHRISTOPHER Bdirector | Sell | 250 | $62.01 |
| Jun 18, 2026 | Lee Chan Wofficer: Chief Operations Officer | Sell | 2,951 | $67.87 |
| Jun 18, 2026 | Young John Alexanderofficer: CFO | Sell | 1,847 | $66.98 |
| Jun 18, 2026 | Ju Chi-Hongofficer: Senior VP, Systems & GM | Sell | 2,017 | $67.87 |
| Jun 18, 2026 | Wang Feng-Mingdirector, officer: CEO | Sell | 6,204 | $67.87 |
| Jun 18, 2026 | Young John Alexanderofficer: CFO | Sell | 3,186 | $67.87 |
| Jun 16, 2026 | Chen Yun-Lungofficer: VP, Business Development and | Sell | 9,856 | $67.06 |
| May 28, 2026 | Wang Feng-Mingdirector, officer: CEO | Sell | 17,285 | $90.38 |
| May 28, 2026 | Wang Feng-Mingdirector, officer: CEO | Sell | 9,150 | $92.05 |
| May 28, 2026 | Young John Alexanderofficer: CFO | Sell | 400 | $96.00 |
| May 28, 2026 | Young John Alexanderofficer: CFO | Option | 400 | $55.80 |
| May 28, 2026 | Wang Feng-Mingdirector, officer: CEO | Sell | 6,065 | $91.23 |
| Apr 22, 2026 | Young John Alexanderofficer: CFO | Sell | 1,971 | $60.00 |
| Mar 19, 2026 | Chen Yun-Lungofficer: VP, Business Development and M | Option | 4,651 | — |
| Mar 19, 2026 | Wang Feng-Mingdirector, officer: CEO | Grant | 15,686 | — |
| Mar 19, 2026 | Lee Chan Wofficer: Chief Operations Officer | Option | 13,678 | — |
| Mar 19, 2026 | Ju Chi-Hongofficer: Senior VP, Systems & GM, Asia | Sell | 2,155 | $54.14 |
| Mar 19, 2026 | Ju Chi-Hongofficer: Senior VP, Systems & GM, Asia | Grant | 5,930 | — |
| Mar 19, 2026 | Wang Feng-Mingdirector, officer: CEO | Option | 27,598 | — |
| Mar 19, 2026 | Chen Yun-Lungofficer: VP, Business Development and M | Grant | 2,849 | — |
| Mar 19, 2026 | Young John Alexanderofficer: CFO | Sell | 4,577 | $52.77 |
| Mar 19, 2026 | Ju Chi-Hongofficer: Senior VP, Systems & GM, Asia | Sell | 4,729 | $52.77 |
| Mar 19, 2026 | Wang Feng-Mingdirector, officer: CEO | Sell | 8,083 | $54.14 |
| Mar 19, 2026 | Ju Chi-Hongofficer: Senior VP, Systems & GM, Asia | Option | 9,553 | — |
| Mar 19, 2026 | Lee Chan Wofficer: Chief Operations Officer | Grant | 7,320 | — |
| Mar 19, 2026 | Lee Chan Wofficer: Chief Operations Officer | Sell | 6,729 | $52.77 |
| Mar 19, 2026 | Young John Alexanderofficer: CFO | Sell | 3,038 | $54.14 |
Source: AMBA SEC Form 4 filings, latest Jul 10, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their AMBA positions over the last 6 months (SEC Form 13F).
Increased
220
New positions
120
Reduced
211
Sold out
130
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD GROUP INC | Increased | 5.5M | Jan 29, 2026 |
| BLACKROCK, INC. | Reduced | 3.8M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 3.8M | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 3.7M | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3.6M | May 15, 2026 |
| STATE STREET CORP | Increased | 2.0M | May 15, 2026 |
| STATE STREET CORP | Increased | 1.7M | Feb 13, 2026 |
| JERICHO CAPITAL ASSET MANAGEMENT L.P. | Increased | 1.6M | Feb 17, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Increased | 1.6M | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | Increased | 1.5M | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 1.3M | May 15, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Increased | 1.1M | Feb 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.0M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.0M | Feb 9, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 952K | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.