AMBA
AMBARELLA INC · Technology · Market cap $2.9B
Insiders sold $3.9M net in the last 90 days ·6 sellers, 0 buyers· 4 of 10 sales under Rule 10b5-1 plans· latest Form 4 filed Sep 28, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$17.1M
reported sales (SEC code S)
Unique Insiders
7
in the rolling window
Latest filing
Sep 28, 2026
PAISLEY CHRISTOPHER B
AMBARELLA INC (AMBA) has 46 SEC Form 4 filings (73 transaction rows) in the rolling window, disclosed by 7 distinct insiders. Most recent filing: Sep 28, 2026.
Inside the rolling window, 7 insiders at AMBARELLA INC reported no open-market purchases and 36 open-market sales totaling $17.1M. The most active filer is CFO Young John Alexander with 9 filings. Insiders have net sold $8.8M over the trailing 6 months. The most recent open-market filing is a sale of 250 shares by Director PAISLEY CHRISTOPHER B, dated Sep 25, 2026, worth $18K.
- Industry:Semiconductors
- CEO:Feng-Ming Wang
- Employees:959
- HQ:Santa Clara, CA, US
- IPO:2012-10-10
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director | Sale | 250 | $18K | Sep 28 | -3.9% | SEC ↗ | |
| CFO | Sale | 1,896 | $128K | Sep 21 | -4.1% | SEC ↗ | |
| CEO | Sale | 6,086 | $395K | Sep 18 | -0.2% | SEC ↗ | |
| Senior VP, Systems & GM | Sale | 2,009 | $130K | Sep 18 | -0.2% | SEC ↗ | |
Lee Chan WFirst in 3 months | Chief Operations Officer | Sale | 2,893 | $188K | Sep 18 | -0.2% | SEC ↗ |
Young John AlexanderFirst in 3 months | CFO | Sale | 3,126 | $203K | Sep 18 | -0.2% | SEC ↗ |
| VP, Business Dev. & Marketing | Sale | 5,958 | $469K | Jul 10 | -14.6% | SEC ↗ | |
| Senior VP, Systems & GM | Sale | 10,000 | $888K | Jul 2 | -15.8% | SEC ↗ | |
| CEO | Sale | 16,250 | $1.5M | Jul 2 | -15.8% | SEC ↗ | |
| Director | Sale | 250 | $16K | Jun 30 | -23.1% | SEC ↗ | |
| CFO | Sale | 5,033 | $340K | Jun 18 | — | SEC ↗ | |
Lee Chan WFirst in 3 months | Chief Operations Officer | Sale | 2,951 | $200K | Jun 18 | — | SEC ↗ |
Ju Chi-HongFirst in 3 months | Senior VP, Systems & GM | Sale | 2,017 | $137K | Jun 18 | — | SEC ↗ |
| CEO | Sale | 6,204 | $421K | Jun 18 | — | SEC ↗ | |
Chen Yun-LungFirst filing | VP, Business Development and | Sale | 9,856 | $661K | Jun 16 | — | SEC ↗ |
| CFO | Sale | 400 | $38K | May 29 | — | SEC ↗ | |
| CEO | Sale | 32,500 | $3.0M | May 29 | — | SEC ↗ | |
| CFO | Sale | 1,971 | $118K | Apr 22 | — | SEC ↗ | |
| CEO | Sale | 18,976 | $1.0M | Mar 19 | — | SEC ↗ | |
| CEO | Sale | 8,083 | $438K | Mar 19 | — | SEC ↗ | |
Lee Chan WFirst in 3 months | Chief Operations Officer | Sale | 6,729 | $355K | Mar 19 | — | SEC ↗ |
Lee Chan WFirst in 3 months | Chief Operations Officer | Sale | 3,641 | $197K | Mar 19 | — | SEC ↗ |
Young John AlexanderFirst in 3 months | CFO | Sale | 4,577 | $242K | Mar 19 | — | SEC ↗ |
Young John AlexanderFirst in 3 months | CFO | Sale | 3,038 | $164K | Mar 19 | — | SEC ↗ |
| Senior VP, Systems & GM, Asia | Sale | 4,729 | $250K | Mar 19 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading AMBA 3 all-time
- DRep. Donna ShalalaOther$1,001 - $15,0002019-06-24
- DRep. Donna ShalalaPurchase$1,001 - $15,0002019-05-15
- DRep. Donna ShalalaPurchase$1,001 - $15,0002019-04-16
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does AMBA have?
AMBARELLA INC (AMBA) has 46 SEC Form 4 filings (73 transaction rows) in the rolling 365-day window, disclosed by 7 distinct insiders. Most recent filing: Sep 28, 2026.
When was the most recent SEC Form 4 filing for AMBA?
The most recent Form 4 filing for AMBA on Tracefour is dated Sep 28, 2026.
Who is the most active insider at AMBA?
The most active SEC Form 4 filer at AMBA in the rolling window is CFO Young John Alexander, with 9 filings.
What is the net insider flow at AMBA over the last 6 months?
Over the trailing 180 days, insiders at AMBA have net sold $8.8M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at AMBA in the current window?
Inside the rolling window, insiders at AMBA bought $0 and sold $17.1M based on SEC Form 4 filings.
Can I get alerts for AMBA insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at AMBARELLA INC (AMBA). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
AMBARELLA INC is in the Technology sector.