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
4 Dec 2018
Day Christopher VP, Marketing
Sold, plan not stated
$74.35K 1,798 at 41.35
9.9%
19 Sep 2018
Sold, plan not stated
$381.45K 10,727 at 35.56
2.6%
19 Sep 2018
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$241.09K 6,799 at 35.46
0.7%
19 Sep 2018
Laplante George Executive Vice President
Sold, plan not stated
$142.69K 4,016 at 35.53
4.0%
19 Sep 2018
Day Christopher VP, Marketing
Sold, plan not stated
$54.44K 1,533 at 35.51
7.8%
12 Sep 2018
Sold, plan not stated
$407.21K 10,197 at 39.93
55.1%
Sold half or more
10 Sep 2018
Laplante George Executive Vice President
Sold, plan not stated
$309.28K 8,011 at 38.61
7.8%
6 Sep 2018
Day Christopher VP, Marketing
Sold, plan not stated
$52.74K 1,326 at 39.77
7.5%
6 Sep 2018
Sold, plan not stated
$40.00K 1,000 at 40.00
5.6%
22 Jun 2018
Day Christopher VP, Marketing
Sold, plan not stated
$134.73K 3,062 at 44.00
14.8%
19 Jun 2018
Day Christopher VP, Marketing
Sold, plan not stated
$100.19K 2,277 at 44.00
9.9%
18 Jun 2018
Sold, plan not stated
$363.99K 8,412 at 43.27
2.1%
18 Jun 2018
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$134.01K 3,097 at 43.27
0.3%
18 Jun 2018
Laplante George Chief Financial Officer
Sold, plan not stated
$120.55K 2,786 at 43.27
2.6%
18 Jun 2018
Day Christopher VP, Marketing
Sold, plan not stated
$44.27K 1,023 at 43.27
4.3%
16 Mar 2018
Sold, plan not stated
$319.69K 6,024 at 53.07
2.0%
16 Mar 2018
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$162.39K 3,060 at 53.07
0.3%
16 Mar 2018
Laplante George Chief Financial Officer
Sold, plan not stated
$147.85K 2,786 at 53.07
2.7%
16 Mar 2018
Day Christopher VP, Marketing
Sold, plan not stated
$53.71K 1,012 at 53.07
4.4%
12 Mar 2018
Sold, plan not stated
$54.87K 1,000 at 54.87
6.5%
29 Dec 2017
Chen Yun-Lung VP, Business Development
Sold, plan not stated
$265.21K 4,435 at 59.80
30.1%
18 Dec 2017
Sold, plan not stated
$510.61K 8,851 at 57.69
3.0%
18 Dec 2017
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$266.18K 4,614 at 57.69
0.5%
18 Dec 2017
Laplante George Chief Financial Officer
Sold, plan not stated
$242.41K 4,202 at 57.69
4.1%
18 Dec 2017
Day Christopher VP, Marketing
Sold, plan not stated
$64.09K 1,111 at 57.69
5.0%
11 Dec 2017
Chen Yun-Lung VP, Business Development
Sold, plan not stated
$678.13K 11,340 at 59.80
49.9%
11 Dec 2017
Sold, plan not stated
$118.46K 2,000 at 59.23
13.3%
29 Sep 2017
Day Christopher VP, Marketing
Sold, plan not stated
$128.67K 2,618 at 49.15
11.4%
18 Sep 2017
Sold, plan not stated
$540.75K 11,629 at 46.50
3.9%
18 Sep 2017
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$300.72K 6,467 at 46.50
0.7%
18 Sep 2017
Laplante George Chief Financial Officer
Sold, plan not stated
$260.03K 5,592 at 46.50
5.4%
18 Sep 2017
Day Christopher VP, Marketing
Sold, plan not stated
$71.10K 1,529 at 46.50
6.2%
16 Jun 2017
Sold, plan not stated
$567.10K 11,628 at 48.77
4.0%
16 Jun 2017
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$291.30K 5,973 at 48.77
0.7%
16 Jun 2017
Laplante George Chief Financial Officer
Sold, plan not stated
$235.85K 4,836 at 48.77
4.8%
16 Jun 2017
Day Christopher VP, Marketing
Sold, plan not stated
$74.42K 1,526 at 48.77
6.7%
1 Jun 2017
Sold, plan not stated
$58.72K 1,000 at 58.72
7.9%
31 Mar 2017
Day Christopher VP, Marketing
Sold, plan not stated
$117.05K 2,109 at 55.50
9.6%
16 Mar 2017
Sold, plan not stated
$447.89K 7,971 at 56.19
2.8%
16 Mar 2017
Sold, plan not stated
$205.77K 3,662 at 56.19
0.4%
16 Mar 2017
Sold, plan not stated
$181.27K 3,226 at 56.19
3.3%
16 Mar 2017
Day Christopher VP, Marketing
Sold, plan not stated
$67.03K 1,193 at 56.19
5.1%
13 Mar 2017
Chen Yun-Lung Vice President, Sales
Sold, plan not stated
$435.65K 7,898 at 55.16
45.8%
13 Mar 2017
Day Christopher VP, Marketing
Sold, plan not stated
$59.44K 1,071 at 55.50
4.8%
1 Mar 2017
Sold, plan not stated
$60.54K 1,000 at 60.54
8.4%
16 Dec 2016
Sold, plan not stated
$489.03K 9,021 at 54.21
3.2%
16 Dec 2016
Sold, plan not stated
$275.55K 5,083 at 54.21
0.6%
16 Dec 2016
Sold, plan not stated
$242.64K 4,476 at 54.21
4.7%
16 Dec 2016
Day Christopher VP, Marketing
Sold, plan not stated
$89.77K 1,656 at 54.21
7.3%
1 Dec 2016
Sold, plan not stated
$61.46K 1,000 at 61.46
9.0%
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