Insider trading

Period: 120 months Stock: AMBA + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

400 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

400 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

400 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

400 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
400 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
400 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

400 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
17 Jun 2025
Ju Chi-Hong Sr. Vice President, Systems
Sold at will
$57.90K 1,108 at 52.26
0.6%
Not planned
17 Jun 2025
Day Christopher VP, Marketing
Sold at will
$17.87K 342 at 52.26
2.2%
Not planned
25 Mar 2025
Sold at will
$27.75K 500 at 55.50
1.2%
Not planned
18 Mar 2025
Sold at will
$175.73K 3,194 at 55.02
0.4%
Not planned
18 Mar 2025
Sold at will
$115.71K 2,103 at 55.02
1.8%
Not planned
18 Mar 2025
Kohn Leslie Chief Technology Officer
Sold at will
$87.15K 1,584 at 55.02
0.2%
Not planned
18 Mar 2025
Lee Chan W Chief Operating Officer
Sold at will
$80.77K 1,468 at 55.02
1.1%
Not planned
18 Mar 2025
Ju Chi-Hong Sr. Vice President, Systems
Sold at will
$56.89K 1,034 at 55.02
0.6%
Not planned
18 Mar 2025
Day Christopher VP, Marketing
Sold at will
$26.35K 479 at 55.02
3.0%
Not planned
6 Mar 2025
Sold at will
$226.17K 4,104 at 55.11
0.5%
Not planned
6 Mar 2025
Sold at will
$146.76K 2,663 at 55.11
2.2%
Not planned
6 Mar 2025
Kohn Leslie Chief Technology Officer
Sold at will
$127.63K 2,316 at 55.11
0.2%
Not planned
6 Mar 2025
Lee Chan W Chief Operating Officer
Sold at will
$116.17K 2,108 at 55.11
1.6%
Not planned
6 Mar 2025
Ju Chi-Hong Sr. Vice President, Systems
Sold at will
$102.45K 1,859 at 55.11
1.1%
Not planned
6 Mar 2025
Day Christopher VP, Marketing
Sold at will
$45.96K 834 at 55.11
5.0%
Not planned
16 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$77.21K 1,000 at 77.21
0.9%
Not planned
15 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$75.90K 1,000 at 75.90
0.9%
Not planned
14 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$75.68K 1,000 at 75.68
0.9%
Not planned
13 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$73.50K 1,000 at 73.50
0.9%
Not planned
10 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$74.12K 1,000 at 74.12
0.9%
Not planned
8 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$73.48K 1,000 at 73.48
0.9%
Not planned
7 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$78.73K 1,000 at 78.73
0.9%
Not planned
6 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$79.15K 1,000 at 79.15
0.8%
Not planned
3 Jan 2025
Day Christopher VP, Marketing
Sold at will
$97.39K 1,247 at 78.10
7.9%
Not planned
3 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$75.06K 1,000 at 75.06
0.8%
Not planned
2 Jan 2025
Lee Chan W Chief Operating Officer
Sold at will
$73.32K 1,000 at 73.32
0.8%
Not planned
26 Dec 2024
Sold at will
$110.70K 1,500 at 73.80
3.5%
Not planned
18 Dec 2024
Day Christopher VP, Marketing
Sold at will 2×
$70.05K 929 at 75.40
5.6%
Not planned
18 Dec 2024
Sold at will
$18.10K 253 at 71.55
3.1%
Not planned
16 Dec 2024
Sold at will
$323.96K 4,296 at 75.41
0.6%
Not planned
16 Dec 2024
Sold at will
$161.08K 2,136 at 75.41
2.1%
Not planned
16 Dec 2024
Kohn Leslie Chief Technology Officer
Sold at will
$132.50K 1,757 at 75.41
0.2%
Not planned
16 Dec 2024
Lee Chan W Chief Operating Officer
Sold at will
$112.21K 1,488 at 75.41
1.2%
Not planned
16 Dec 2024
Ju Chi-Hong Sr. Vice President, Systems
Sold at will
$79.03K 1,048 at 75.41
0.7%
Not planned
16 Dec 2024
Day Christopher VP, Marketing
Sold at will
$36.35K 482 at 75.41
2.8%
Not planned
13 Dec 2024
Hon Hsiao-Wuen Director
Sold at will
$27.95K 377 at 74.15
1.3%
Not planned
9 Dec 2024
Ju Chi-Hong Sr. Vice President, Systems
Sold at will 2×
$387.48K 5,118 at 75.71
3.1%
Not planned
2 Dec 2024
Day Christopher VP, Marketing
Sold at will
$91.51K 1,278 at 71.61
6.9%
Not planned
3 Oct 2024
Day Christopher VP, Marketing
Sold at will
$168.43K 2,904 at 58.00
13.6%
Not planned
25 Sep 2024
Sold on a plan
$26.86K 500 at 53.71
1.2%
Planned (10b5-1)
24 Sep 2024
Sold at will
$49.98K 913 at 54.74
10.1%
Not planned
17 Sep 2024
Sold at will
$230.28K 4,301 at 53.54
0.5%
Not planned
17 Sep 2024
Sold at will
$114.52K 2,139 at 53.54
2.0%
Not planned
17 Sep 2024
Kohn Leslie Chief Technology Officer
Sold at will
$86.09K 1,608 at 53.54
0.2%
Not planned
17 Sep 2024
Lee Chan W Chief Operating Officer
Sold at will
$79.77K 1,490 at 53.54
1.2%
Not planned
17 Sep 2024
Ju Chi-Hong Sr. Vice President, Systems
Sold at will
$56.22K 1,050 at 53.54
0.6%
Not planned
17 Sep 2024
Day Christopher VP, Marketing
Sold at will
$25.86K 483 at 53.54
2.2%
Not planned
16 Sep 2024
Sold at will
$12.76K 240 at 53.16
2.6%
Not planned
5 Sep 2024
Sold at will
$1.73M 31,618 at 54.71
3.8%
Not planned
4 Sep 2024
Sold at will
$245.47K 4,382 at 56.02
0.5%
Not planned
Showing 51–100 of 400. ← Newer Page 2 of 8 Older →