AMBANasdaq

AMBARELLA INC

Alert me on AMBA

Insider buys, 6 months

Congress trades, 6 months

Signals, 6 months

Six months

After each filing

Sep 29 Sale PAISLEY CHRISTOPHER B Insider

1 week

−1.1%S&P +1.9%

1 month

Result in2 trading days

3 months

Result in44 trading days

6 months

Result in107 trading days

Sep 22 Sale Young John Alexander Insider

1 week

+2.5%S&P −1.2%

1 month

−1.6%S&P 0.0%

3 months

Result in39 trading days

6 months

Result in102 trading days

Sep 19 Sale Young John Alexander Insider

1 week

−0.2%S&P −1.0%

1 month

−8.2%S&P −0.6%

3 months

Result in38 trading days

6 months

Result in101 trading days

Sep 19 Sale Lee Chan W Insider

1 week

−0.2%S&P −1.0%

1 month

−8.2%S&P −0.6%

3 months

Result in38 trading days

6 months

Result in101 trading days

Sep 19 Sale Wang Feng-Ming Insider

1 week

−0.2%S&P −1.0%

1 month

−8.2%S&P −0.6%

3 months

Result in38 trading days

6 months

Result in101 trading days

Show all 39

Sep 19 Sale Ju Chi-Hong Insider

1 week

−0.2%S&P −1.0%

1 month

−8.2%S&P −0.6%

3 months

Result in38 trading days

6 months

Result in101 trading days

Jul 11 Sale Chen Yun-Lung Insider

1 week

−8.7%S&P −0.9%

1 month

+15.1%S&P +2.9%

3 months

−6.3%S&P +4.2%

6 months

Result in52 trading days

Jul 3 Sale Wang Feng-Ming Insider

1 week

−9.7%S&P −0.3%

1 month

+3.1%S&P +2.7%

3 months

−13.9%S&P +2.7%

6 months

Result in47 trading days

Jul 3 Sale Ju Chi-Hong Insider

1 week

−9.7%S&P −0.3%

1 month

+3.1%S&P +2.7%

3 months

−13.9%S&P +2.7%

6 months

Result in47 trading days

Jul 1 Sale PAISLEY CHRISTOPHER B Insider

1 week

−11.3%S&P +0.8%

1 month

−2.6%S&P +0.2%

3 months

−21.3%S&P +2.5%

6 months

Result in45 trading days

Jun 19 Sale Wang Feng-Ming Insider

1 week

−5.2%S&P −0.5%

1 month

−2.4%S&P +0.4%

3 months

−2.6%S&P +4.2%

6 months

Result in38 trading days

Jun 19 Sale Young John Alexander Insider

1 week

−5.2%S&P −0.5%

1 month

−2.4%S&P +0.4%

3 months

−2.6%S&P +4.2%

6 months

Result in38 trading days

Jun 19 Sale Ju Chi-Hong Insider

1 week

−5.2%S&P −0.5%

1 month

−2.4%S&P +0.4%

3 months

−2.6%S&P +4.2%

6 months

Result in38 trading days

Jun 19 Sale Lee Chan W Insider

1 week

−5.2%S&P −0.5%

1 month

−2.4%S&P +0.4%

3 months

−2.6%S&P +4.2%

6 months

Result in38 trading days

Jun 17 Sale Chen Yun-Lung Insider

1 week

−2.7%S&P −0.6%

1 month

−0.3%S&P +0.4%

3 months

+1.6%S&P +3.2%

6 months

Result in36 trading days

May 29 Sale Wang Feng-Ming Insider

1 week

−12.0%S&P −2.5%

1 month

+18.9%S&P −1.0%

3 months

−2.1%S&P +2.0%

6 months

Result in23 trading days

May 29 Sale Young John Alexander Insider

1 week

−12.0%S&P −2.5%

1 month

+18.9%S&P −1.0%

3 months

−2.1%S&P +2.0%

6 months

Result in23 trading days

Apr 23 Sale Young John Alexander Insider

1 week

+12.2%S&P +1.4%

1 month

+42.7%S&P +5.2%

3 months

+11.0%S&P +4.6%

6 months

+2.9%S&P +8.4%

Mar 20 Sale Young John Alexander Insider

1 week

−6.6%S&P −2.2%

1 month

+11.0%S&P +8.6%

3 months

+30.9%S&P +15.1%

6 months

+27.5%S&P +19.9%

Mar 20 Sale Ju Chi-Hong Insider

1 week

−6.6%S&P −2.2%

1 month

+11.0%S&P +8.6%

3 months

+30.9%S&P +15.1%

6 months

+27.5%S&P +19.9%

Mar 20 Sale Lee Chan W Insider

1 week

−6.6%S&P −2.2%

1 month

+11.0%S&P +8.6%

3 months

+30.9%S&P +15.1%

6 months

+27.5%S&P +19.9%

Mar 20 Sale Wang Feng-Ming Insider

1 week

−6.6%S&P −2.2%

1 month

+11.0%S&P +8.6%

3 months

+30.9%S&P +15.1%

6 months

+27.5%S&P +19.9%

Mar 5 Sale Wang Feng-Ming Insider

1 week

−5.4%S&P −2.2%

1 month

−8.0%S&P −3.0%

3 months

+30.0%S&P +11.4%

6 months

+14.4%S&P +14.1%

Jan 8 Sale Ju Chi-Hong Insider

1 week

−8.7%S&P +0.4%

1 month

−7.8%S&P +0.6%

3 months

−25.4%S&P −1.2%

6 months

+1.7%S&P +9.2%

Jan 1 Sale Ju Chi-Hong Insider

1 week

−7.9%S&P +1.6%

1 month

−19.9%S&P +0.9%

3 months

−32.1%S&P −3.3%

6 months

−4.4%S&P +10.0%

Dec 30, 2025 Sale PAISLEY CHRISTOPHER B Insider

1 week

+1.1%S&P +0.4%

1 month

−8.2%S&P +0.7%

3 months

−26.8%S&P −4.4%

6 months

+12.3%S&P +9.0%

Dec 20, 2025 Sale Lee Chan W Insider

1 week

−4.2%S&P +0.3%

1 month

−7.7%S&P +0.6%

3 months

−25.7%S&P −3.8%

6 months

−12.0%S&P +7.8%

Dec 20, 2025 Sale Young John Alexander Insider

1 week

−4.2%S&P +0.3%

1 month

−7.7%S&P +0.6%

3 months

−25.7%S&P −3.8%

6 months

−12.0%S&P +7.8%

Dec 20, 2025 Sale Wang Feng-Ming Insider

1 week

−4.2%S&P +0.3%

1 month

−7.7%S&P +0.6%

3 months

−25.7%S&P −3.8%

6 months

−12.0%S&P +7.8%

Dec 20, 2025 Sale Ju Chi-Hong Insider

1 week

−4.2%S&P +0.3%

1 month

−7.7%S&P +0.6%

3 months

−25.7%S&P −3.8%

6 months

−12.0%S&P +7.8%

Dec 19, 2025 Sale Schwarting Elizabeth M Insider

1 week

−3.4%S&P +1.1%

1 month

−4.8%S&P +1.2%

3 months

−24.8%S&P −3.8%

6 months

−13.1%S&P +8.3%

Oct 16, 2025 Sale Ju Chi-Hong Insider

1 week

−0.8%S&P +1.7%

1 month

+4.5%S&P +1.7%

3 months

−18.3%S&P +5.0%

6 months

−29.5%S&P +7.9%

Oct 8, 2025 Sale Schwarting Elizabeth M Insider

1 week

−2.1%S&P −1.2%

1 month

+6.6%S&P −0.4%

3 months

−16.8%S&P +2.7%

6 months

−37.9%S&P +1.5%

Sep 20, 2025 Sale Wang Feng-Ming Insider

1 week

−6.7%S&P −0.5%

1 month

−6.3%S&P +0.7%

3 months

−18.3%S&P +2.4%

6 months

−38.6%S&P −1.5%

Sep 20, 2025 Sale Ju Chi-Hong Insider

1 week

−6.7%S&P −0.5%

1 month

−6.3%S&P +0.7%

3 months

−18.3%S&P +2.4%

6 months

−38.6%S&P −1.5%

Sep 20, 2025 Sale Kohn Leslie Insider

1 week

−6.7%S&P −0.5%

1 month

−6.3%S&P +0.7%

3 months

−18.3%S&P +2.4%

6 months

−38.6%S&P −1.5%

Sep 20, 2025 Sale Young John Alexander Insider

1 week

−6.7%S&P −0.5%

1 month

−6.3%S&P +0.7%

3 months

−18.3%S&P +2.4%

6 months

−38.6%S&P −1.5%

Sep 20, 2025 Sale Lee Chan W Insider

1 week

−6.7%S&P −0.5%

1 month

−6.3%S&P +0.7%

3 months

−18.3%S&P +2.4%

6 months

−38.6%S&P −1.5%

Sep 13, 2025 Sale Chen Yun-Lung Insider

1 week

+10.0%S&P +1.2%

1 month

+0.5%S&P +0.5%

3 months

−6.8%S&P +3.4%

6 months

−34.8%S&P +2.1%

Every purchase and sale on this ticker reported by a member of Congress or an insider, measured from the close of the first trading day after it became public to the close 1 week, 1 month, 3 months and 6 months later, each beside the S&P over the same days.

Filings for AMBA

92 held · newest 592 held · newest 2

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See all 92 filings for AMBA

Aeon news and offers by email

New sources, new features and offers like our founding price. A few times a month at most. Stop any time.

Signal history

No signal for this ticker yet. A signal is written when insider buying here scores one dot or more.

Stakes

Jun 30, 2026 Schedule 13G

T. Rowe Price Associates, Inc.: 5.9%, 2,598,863 shares

Jun 30, 2026 Schedule 13G

STATE STREET CORPORATION: 5.8%, 2,562,733 shares

Jun 30, 2026 Schedule 13G

Vanguard Capital Management: 5%, 2,198,918 shares

Mar 31, 2026 Schedule 13G

Vanguard Portfolio Management: 8.6%, 3,752,800 shares

Mar 13, 2026 Schedule 13G, amended

The Vanguard Group: 0%, 0 shares

Dec 31, 2025 Schedule 13G, amended

The Vanguard Group: 12.7%, 5,480,285 shares

Schedule 13D is filed within 5 business days of crossing 5 percent by an investor who may seek to influence the company. Schedule 13G is filed by a passive holder, and a large institution has up to 45 days after the quarter end.

Government contracts, last 12 months

Awards of $10M and up, from USAspending · context, not a signal

No contracts of $10M or more in the last 12 months.

Lobbying

Last four quarters

No lobbying reports on file.