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
11 Mar 2021
Day Christopher VP, Marketing
Sold, plan not stated
$58.76K 498 at 118.00
5.8%
9 Mar 2021
Sold, plan not stated
$183.75K 1,675 at 109.70
0.3%
9 Mar 2021
Sold, plan not stated
$164.55K 1,500 at 109.70
5.1%
9 Mar 2021
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$94.78K 864 at 109.70
0.1%
9 Mar 2021
Sold, plan not stated
$72.73K 663 at 109.70
1.5%
9 Mar 2021
Day Christopher VP, Marketing
Sold, plan not stated
$38.40K 350 at 109.70
3.9%
16 Feb 2021
Kohn Leslie Chief Technology Officer
Sold, plan not stated 6×
$2.55M 20,000 at 127.50
2.3%
22 Dec 2020
Meng Teresa H Director
Sold, plan not stated
$88.14K 958 at 92.00
19.6%
17 Dec 2020
Day Christopher VP, Marketing
Sold, plan not stated
$147.26K 1,642 at 89.68
16.8%
16 Dec 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated 5×
$2.25M 24,970 at 90.08
2.8%
16 Dec 2020
Sold, plan not stated
$489.97K 5,429 at 90.25
1.0%
16 Dec 2020
Sold, plan not stated
$397.55K 4,405 at 90.25
9.4%
16 Dec 2020
Day Christopher VP, Marketing
Sold, plan not stated 2×
$194.88K 2,145 at 90.85
18.0%
9 Dec 2020
Chen Yun-Lung VP, Business Development
Sold, plan not stated
$537.37K 6,027 at 89.16
14.2%
8 Dec 2020
Sold, plan not stated
$180.07K 2,000 at 90.03
7.0%
8 Dec 2020
Day Christopher VP, Marketing
Sold, plan not stated
$117.69K 1,300 at 90.53
12.2%
4 Dec 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$921.50K 10,000 at 92.15
1.1%
3 Dec 2020
Hu Chenming Director
Sold, plan not stated
$511.98K 5,818 at 88.00
24.3%
2 Dec 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated 3×
$1.04M 12,224 at 85.26
1.4%
30 Nov 2020
Day Christopher VP, Marketing
Sold, plan not stated
$106.63K 1,367 at 78.00
12.8%
30 Nov 2020
Sold, plan not stated
$54.50K 700 at 77.85
76.7%
Sold half or more
27 Nov 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$1.57M 20,000 at 78.55
2.2%
27 Nov 2020
Hu Chenming Director
Sold, plan not stated
$390.00K 5,000 at 78.00
17.3%
27 Nov 2020
Meng Teresa H Director
Sold, plan not stated
$101.41K 1,287 at 78.80
24.6%
24 Nov 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated 4×
$1.25M 17,300 at 72.39
1.8%
24 Nov 2020
Hu Chenming Director
Sold, plan not stated
$353.35K 5,000 at 70.67
14.8%
23 Nov 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$121.51K 1,800 at 67.50
0.2%
20 Nov 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$60.27K 900 at 66.97
0.1%
17 Nov 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$620.00K 10,000 at 62.00
1.1%
9 Nov 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$482.81K 7,776 at 62.09
0.8%
29 Sep 2020
Day Christopher VP, Marketing
Sold, plan not stated
$46.75K 899 at 52.00
8.5%
17 Sep 2020
Meng Teresa H Director
Sold, plan not stated
$22.31K 429 at 52.01
7.6%
16 Sep 2020
Sold, plan not stated
$284.12K 5,343 at 53.18
1.1%
16 Sep 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$260.08K 4,891 at 53.18
0.5%
16 Sep 2020
Sold, plan not stated
$230.57K 4,336 at 53.18
10.2%
16 Sep 2020
Day Christopher VP, Marketing
Sold, plan not stated
$47.65K 896 at 53.18
7.8%
8 Sep 2020
Sold, plan not stated
$49.82K 1,000 at 49.82
3.7%
30 Jun 2020
Day Christopher VP, Marketing
Sold, plan not stated
$58.18K 1,267 at 45.92
12.8%
17 Jun 2020
Meng Teresa H Director
Sold, plan not stated
$22.42K 429 at 52.25
8.2%
16 Jun 2020
Sold, plan not stated
$278.48K 5,342 at 52.13
1.1%
16 Jun 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$254.92K 4,890 at 52.13
0.5%
16 Jun 2020
Sold, plan not stated
$161.66K 3,101 at 52.13
8.5%
16 Jun 2020
Day Christopher VP, Marketing
Sold, plan not stated
$46.66K 895 at 52.13
8.3%
9 Jun 2020
Sold, plan not stated
$79.26K 1,500 at 52.84
5.7%
5 Jun 2020
Sold, plan not stated
$409.32K 7,453 at 54.92
45.2%
5 Jun 2020
Chen Yun-Lung VP, Business Development
Sold, plan not stated
$310.09K 5,555 at 55.82
13.1%
31 Mar 2020
Day Christopher VP, Marketing
Sold, plan not stated
$48.56K 976 at 49.75
10.6%
27 Mar 2020
Sold, plan not stated
$237.72K 4,972 at 47.81
1.0%
27 Mar 2020
Kohn Leslie Chief Technology Officer
Sold, plan not stated
$121.45K 2,540 at 47.81
0.3%
27 Mar 2020
Sold, plan not stated
$83.81K 1,753 at 47.81
5.9%
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