Insider trading

Period: 120 months Stock: AMBA Role: Directors × + 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.

74 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.

74 decisions over 120 months Remove this filter
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.

74 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.

74 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.
74 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
74 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.

74 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
25 Sep 2026
Sold on a plan
$17.69K 250 at 70.76
0.6%
Planned (10b5-1)
26 Jun 2026
Sold on a plan
$15.50K 250 at 62.01
0.6%
Planned (10b5-1)
26 Dec 2025
Sold at will
$36.09K 500 at 72.18
1.2%
Not planned
16 Dec 2025
Sold at will
$45.16K 624 at 72.38
8.5%
Not planned
6 Oct 2025
Sold at will
$227.44K 2,664 at 85.38
26.7%
Not planned
25 Jun 2025
Sold on a plan
$62.58K 1,000 at 62.58
2.5%
Planned (10b5-1)
25 Mar 2025
Sold at will
$27.75K 500 at 55.50
1.2%
Not planned
26 Dec 2024
Sold at will
$110.70K 1,500 at 73.80
3.5%
Not planned
18 Dec 2024
Sold at will
$18.10K 253 at 71.55
3.1%
Not planned
13 Dec 2024
Hon Hsiao-Wuen Director
Sold at will
$27.95K 377 at 74.15
1.3%
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
16 Sep 2024
Sold at will
$12.76K 240 at 53.16
2.6%
Not planned
17 Jun 2024
Sold at will
$12.78K 230 at 55.56
3.7%
Not planned
20 Mar 2024
Sold at will
$11.87K 240 at 49.47
3.7%
Not planned
26 Dec 2023
Sold on a plan
$31.57K 500 at 63.14
1.3%
Planned (10b5-1)
18 Dec 2023
Sold at will
$50.22K 804 at 62.46
11.2%
Not planned
6 Dec 2023
Sold at will
$473.26K 8,056 at 58.75
26.4%
Not planned
14 Sep 2023
Sold at will
$45.51K 777 at 58.57
9.7%
Not planned
16 Jun 2023
Sold on a plan
$113.54K 1,324 at 85.76
21.7%
Planned (10b5-1)
16 Mar 2023
Sold, plan not stated
$17.73K 234 at 75.77
4.9%
19 Dec 2022
Sold, plan not stated
$19.05K 234 at 81.42
5.5%
19 Sep 2022
Sold, plan not stated
$7.26K 113 at 64.24
3.2%
17 Jun 2022
Sold, plan not stated
$7.57K 113 at 67.03
3.4%
13 Jun 2022
Sold, plan not stated 2×
$55.43K 750 at 73.90
2.3%
29 Mar 2022
Sold, plan not stated
$25.01K 250 at 100.05
0.8%
17 Mar 2022
Sold, plan not stated
$10.50K 113 at 92.95
3.7%
16 Mar 2022
Sold, plan not stated
$66.44K 750 at 88.59
2.3%
7 Mar 2022
VERHALEN ANDREW W Director · indirect
Bought
$1.01M 11,455 at 88.60
opened
First buy on file
21 Dec 2021
Sold, plan not stated
$158.60K 815 at 194.60
23.5%
9 Dec 2021
Sold, plan not stated
$1.74M 8,055 at 216.00
35.6%
7 Dec 2021
Meng Teresa H Director
Sold, plan not stated
$212.62K 959 at 221.71
14.1%
6 Dec 2021
Sold, plan not stated
$140.37K 736 at 190.72
2.4%
22 Sep 2021
Hu Chenming Director
Sold, plan not stated
$586.56K 3,666 at 160.00
26.4%
9 Sep 2021
Hu Chenming Director
Sold, plan not stated
$560.00K 4,000 at 140.00
23.6%
3 Sep 2021
Sold, plan not stated
$97.48K 736 at 132.44
2.4%
1 Sep 2021
Hu Chenming Director
Sold, plan not stated
$480.00K 4,000 at 120.00
19.1%
28 Jun 2021
Sold, plan not stated
$100.04K 958 at 104.43
31.0%
8 Jun 2021
Sold, plan not stated 2×
$146.55K 1,500 at 97.70
5.0%
9 Mar 2021
Sold, plan not stated
$164.55K 1,500 at 109.70
5.1%
22 Dec 2020
Meng Teresa H Director
Sold, plan not stated
$88.14K 958 at 92.00
19.6%
8 Dec 2020
Sold, plan not stated
$180.07K 2,000 at 90.03
7.0%
3 Dec 2020
Hu Chenming Director
Sold, plan not stated
$511.98K 5,818 at 88.00
24.3%
30 Nov 2020
Sold, plan not stated
$54.50K 700 at 77.85
76.7%
Sold half or more
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
Hu Chenming Director
Sold, plan not stated
$353.35K 5,000 at 70.67
14.8%
17 Sep 2020
Meng Teresa H Director
Sold, plan not stated
$22.31K 429 at 52.01
7.6%
8 Sep 2020
Sold, plan not stated
$49.82K 1,000 at 49.82
3.7%
17 Jun 2020
Meng Teresa H Director
Sold, plan not stated
$22.42K 429 at 52.25
8.2%
Showing 1–50 of 74. Page 1 of 2 Older →