Insider trading

Period: 120 months Stock: ACMR Plan: Not on a plan × + Add filter Clear all
Views & alerts

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When

Period

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

58 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.

58 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.

58 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.

58 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.
58 decisions over 120 months Remove this filter
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
58 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.

58 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
23 Aug 2023
Chen Fuping See remarks
Sold at will
$1.58M 105,000 at 15.00
100%
Sold half or more
22 Aug 2023
Dun Haiping Director
Sold at will
$444.56K 32,098 at 13.85
3.6%
Not planned
3 Jul 2023
Feng Lisa See remarks
Sold at will
$337.50K 22,500 at 15.00
31.0%
Not planned
6 Jun 2023
Cheav Sotheara See remarks
Sold at will
$390.00K 39,000 at 10.00
26.2%
Not planned
1 Jun 2023
Dun Haiping Director
Sold at will
$375.00K 37,500 at 10.00
4.1%
Not planned
16 Mar 2023
Dun Haiping Director
Sold at will
$452.25K 37,500 at 12.06
4.0%
Not planned
9 Mar 2023
Feng Lisa See remarks
Sold, plan not stated 4×
$278.35K 22,500 at 12.37
31.0%
30 Nov 2022
Dun Haiping Director
Sold, plan not stated
$297.81K 35,327 at 8.43
3.8%
22 Aug 2022
Dun Haiping Director
Sold, plan not stated
$588.25K 36,537 at 16.10
4.1%
18 Aug 2022
Cheav Sotheara See remarks
Sold, plan not stated
$175.00K 10,000 at 17.50
8.3%
17 Aug 2022
Cheav Sotheara See remarks
Sold, plan not stated 2×
$267.10K 15,000 at 17.81
11.1%
16 Aug 2022
Cheav Sotheara See remarks
Sold, plan not stated
$97.10K 5,000 at 19.42
3.7%
15 Aug 2022
Dun Haiping Director
Bought
$704.09K 36,519 at 19.28
4.3%
First buy on file
27 May 2022
Dun Haiping Director
Sold, plan not stated
$542.25K 36,150 at 15.00
4.1%
10 Mar 2022
McKechnie Mark See Remarks
Sold, plan not stated 8×
$320.98K 5,000 at 64.20
94.3%
Sold half or more
9 Mar 2022
Dun Haiping Director
Sold, plan not stated 3×
$1.01M 12,269 at 82.09
4.0%
18 Nov 2021
McKechnie Mark See Remarks
Sold, plan not stated 7×
$470.27K 5,000 at 94.05
100%
Sold half or more
24 Aug 2021
Xiang Yinan Director · indirect
Sold, plan not stated 3×
$21.50M 244,629 at 87.88
17.6%
23 Aug 2021
Xiang Yinan Director · indirect
Sold, plan not stated
$2.99M 35,136 at 85.03
2.5%
19 Aug 2021
McKechnie Mark See remarks
Sold, plan not stated 3×
$410.38K 5,000 at 82.08
100%
Sold half or more
18 Aug 2021
Xiang Yinan Director · indirect
Sold, plan not stated 2×
$2.27M 26,612 at 85.12
1.8%
13 Aug 2021
Xiang Yinan Director · indirect
Sold, plan not stated
$308.31K 3,623 at 85.10
0.2%
12 Aug 2021
Xiang Yinan Director · indirect
Sold, plan not stated
$1.71M 20,000 at 85.33
1.4%
11 Aug 2021
Xiang Yinan Director · indirect
Sold, plan not stated 4×
$2.58M 30,000 at 86.11
2.0%
9 Apr 2021
Cheav Sotheara See remarks
Sold, plan not stated
$1.14M 13,111 at 86.64
23.2%
8 Apr 2021
Cheav Sotheara See remarks
Sold, plan not stated
$443.30K 5,000 at 88.66
8.1%
19 Mar 2021
Wang David H See remarks
Sold, plan not stated
$4.46M 49,228 at 90.55
22.7%
18 Mar 2021
Wang David H See remarks
Sold, plan not stated
$4.60M 50,000 at 91.92
18.7%
16 Mar 2021
Cheav Sotheara See remarks
Sold, plan not stated
$936.90K 10,000 at 93.69
18.7%
15 Mar 2021
Cheav Sotheara See remarks
Sold, plan not stated
$916.70K 10,000 at 91.67
18.7%
12 Mar 2021
McKechnie Mark See remarks
Sold, plan not stated
$881.36K 10,028 at 87.89
100%
Sold half or more
12 Feb 2021
Chen Fuping See remarks
Sold, plan not stated
$3.60M 30,000 at 120.00
100%
Sold half or more
12 Feb 2021
Hu Chenming Director
Sold, plan not stated
$1.20M 10,000 at 120.00
32.2%
12 Feb 2021
Liu Tracy Director
Sold, plan not stated
$240.00K 2,000 at 120.00
5.1%
10 Feb 2021
Liu Tracy Director
Sold, plan not stated
$176.00K 1,600 at 110.00
3.9%
9 Feb 2021
Liu Tracy Director
Sold, plan not stated
$44.00K 400 at 110.00
1.0%
6 Jan 2021
Liu Tracy Director
Sold, plan not stated
$200.00K 2,000 at 100.00
4.7%
30 Dec 2020
Wang Jian See remarks
Sold, plan not stated
$2.53M 32,486 at 78.00
27.8%
22 Dec 2020
Xiang Yinan Director · indirect
Sold, plan not stated
$1.12M 14,920 at 75.00
1.0%
21 Dec 2020
Xiang Yinan Director · indirect
Sold, plan not stated
$2.02M 26,892 at 75.08
1.7%
18 Dec 2020
Xiang Yinan Director · indirect
Sold, plan not stated 2×
$6.34M 84,153 at 75.32
5.2%
17 Dec 2020
Xiang Yinan Director · indirect
Sold, plan not stated
$241.11K 3,214 at 75.02
0.2%
15 Dec 2020
Xiang Yinan Director · indirect
Sold, plan not stated 2×
$2.33M 30,821 at 75.56
1.8%
4 Dec 2020
Wang David H See remarks
Sold, plan not stated
$3.80M 49,322 at 77.14
22.7%
3 Dec 2020
Wang David H See remarks
Sold, plan not stated 2×
$4.10M 49,661 at 82.50
18.6%
19 Nov 2020
McKechnie Mark See remarks
Sold, plan not stated
$558.38K 7,500 at 74.45
100%
Sold half or more
13 Nov 2020
Cheav Sotheara See remarks
Sold, plan not stated
$851.64K 9,670 at 88.07
18.2%
12 Nov 2020
Cheav Sotheara See remarks
Sold, plan not stated
$886.30K 10,000 at 88.63
15.9%
16 Sep 2020
Feng Lisa See remarks
Sold, plan not stated
$1.08M 15,000 at 72.30
58.2%
Sold half or more
14 Sep 2020
Cheav Sotheara See remarks
Sold, plan not stated
$329.56K 4,941 at 66.70
10.2%
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