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Detailed Insider History for:
ACM RESEARCH INC: ACMR
Price: 11/15/24 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$18.33 $34.40 $13.94 $1,148 58 1,298 0.0% 9.8% 58.77% 14.90%
Exch Sector Industry Sub-Industry
NasdaqGM Retail Trade Miscellaneous Retail Retail- Hobby, Toy & Game Shops
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
DUN HAIPING
DIR
OS*
$17,512
942
---
11/14/24
---
$18.59
789,148
-0.1
D
---
11/18/24 - 4:32:29 pm
2
    
 
DUN HAIPING
DIR
OE*
$17,500
35,000
---
11/14/24
---
$0.50
790,090
4.6
D
---
11/18/24 - 4:32:29 pm
3
    
 
WANG DAVID H
DIR,BO
OS*
$135,001
7,262
---
11/14/24
---
$18.59
766,756
-0.9
D
---
11/18/24 - 4:30:17 pm
4
1y
4
75%
150%
1
WANG DAVID H
DIR,BO
OE*
$135,000
270,000
---
11/14/24
---
$0.50
774,018
53.6
D
---
11/18/24 - 4:30:17 pm
5
    
 
SHANGHAI SCIENCE AND TECHNOLOGY VENTURE CAPITAL \(
BO
AS
$1,910,068
90,396
---
10/8/24
---
$21.13
2,338,510
-3.7
D
10b
10/8/24 - 9:37:49 pm
6
    
 
XING XIAO
DIR
AS
$1,910,068
90,396
---
10/8/24
---
$21.13
2,338,510
-3.7
I
10b
10/8/24 - 9:30:56 pm
7
    
 
SHANGHAI SCIENCE AND TECHNOLOGY VENTURE CAPITAL \(
BO
AS
$21,609,592
975,000
10/4/24
10/7/24
$20.94
$23.32
2,428,906
-28.6
D
10b
10/8/24 - 9:37:49 pm
8
    
 
XING XIAO
DIR
AS
$21,606,494
975,000
10/4/24
10/7/24
$21.33
$26.01
2,428,906
-28.6
I
10b
10/8/24 - 9:30:56 pm
9
    
 
MCKECHNIE MARK
O
OS
$363,352
16,516
---
10/4/24
---
$22.00
900
-94.8
D
10b
10/8/24 - 4:31:55 pm
10
    
 
MCKECHNIE MARK
O
OE
$92,490
16,516
---
10/4/24
---
$5.60
17,416
1,835.1
D
10b
10/8/24 - 4:31:55 pm
11
    
 
SHANGHAI SCIENCE AND TECHNOLOGY VENTURE CAPITAL \(
BO
AS
$693,921
34,604
10/1/24
10/2/24
---
$20.01
3,403,906
-1.0
D
10b
10/3/24 - 9:58:42 pm
12
    
 
XING XIAO
DIR
AS
$693,921
34,604
10/1/24
10/2/24
---
$20.01
3,403,906
-1.0
I
10b
10/3/24 - 4:30:28 pm
13
    
 
DUN HAIPING
DIR
AS
$345,274
19,097
---
8/29/24
---
$18.08
755,090
-2.5
D
10b
9/3/24 - 4:30:17 pm
14
    
 
DUN HAIPING
DIR
AS
$297,750
15,000
---
8/22/24
---
$19.85
774,187
-1.9
D
10b
8/26/24 - 4:30:27 pm
15
    
 
DUN HAIPING
DIR
OS*
$17,500
903
---
8/14/24
---
$19.38
789,187
-0.1
D
---
8/16/24 - 9:02:36 pm
16
    
 
DUN HAIPING
DIR
OE*
$17,500
35,000
---
8/14/24
---
$0.50
790,090
4.6
D
---
8/16/24 - 9:02:36 pm
17
    
 
DUN HAIPING
DIR
JS
---
400,000
---
6/27/24
---
---
---
All
D
---
7/1/24 - 4:30:30 pm
18
    
 
WANG JIAN
O
OS
$1,352,676
60,000
6/10/24
6/11/24
$22.07
$23.68
253,158
-19.2
D
10b
6/12/24 - 4:30:42 pm
19
    
 
WANG JIAN
O
OE
$277,200
60,000
6/10/24
6/11/24
---
$4.62
283,158
26.9
D
10b
6/12/24 - 4:30:42 pm
20
    
 
WANG JIAN
O
OS
$662,100
30,000
---
6/7/24
---
$22.07
253,158
-10.6
D
10b
6/7/24 - 9:32:03 pm
21
    
 
WANG JIAN
O
OE
$277,200
60,000
6/6/24
6/7/24
---
$4.62
283,158
26.9
D
10b
6/7/24 - 9:32:03 pm
22
    
 
WANG JIAN
O
AS
$687,600
30,000
---
6/6/24
---
$22.92
253,158
-10.6
D
10b
6/7/24 - 9:32:03 pm
23
    
 
MCKECHNIE MARK
O
OS
$458,400
20,000
---
6/6/24
---
$22.92
900
-95.7
D
10b
6/7/24 - 9:30:12 pm
24
    
 
MCKECHNIE MARK
O
OE
$98,264
20,000
---
6/6/24
$4.62
$5.60
14,916
---
D
10b
6/7/24 - 9:30:12 pm
25
    
 
DUN HAIPING
DIR
AS
$435,379
19,239
---
5/29/24
---
$22.63
855,090
-2.2
D
10b
5/31/24 - 4:30:45 pm
26
1y
3
67%
-7%
1
WANG DAVID H
DIR,BO
AS
$1,947,356
86,090
---
5/29/24
---
$22.62
504,018
-14.6
D
10b
5/31/24 - 4:30:26 pm
27
1y
3
67%
-7%
1
WANG DAVID H
DIR,BO
AS
$2,052,900
90,000
---
5/22/24
---
$22.81
590,108
-13.2
D
10b
5/24/24 - 4:30:35 pm
28
    
 
DUN HAIPING
DIR
AS
$343,200
15,000
---
5/22/24
---
$22.88
874,329
-1.7
D
10b
5/24/24 - 4:30:31 pm
29
    
 
WANG DAVID H
DIR,BO
OS*
$90,008
3,910
---
5/14/24
---
$23.02
680,108
-0.6
D
---
5/16/24 - 9:00:37 am
30
1y
4
75%
150%
1
WANG DAVID H
DIR,BO
OE*
$90,000
180,000
---
5/14/24
---
$0.50
684,018
35.7
D
---
5/16/24 - 9:00:37 am
31
    
 
DUN HAIPING
DIR
OS*
$17,518
761
---
5/14/24
---
$23.02
889,329
-0.1
D
---
5/16/24 - 9:00:11 am
32
    
 
DUN HAIPING
DIR
OE*
$17,500
35,000
---
5/14/24
---
$0.50
890,090
4.1
D
---
5/16/24 - 9:00:11 am
33
1y
3
67%
-7%
1
WANG DAVID H
DIR,BO
AS
$2,405,050
87,089
---
3/14/24
$27.51
$28.38
504,018
-14.7
D
10b
3/15/24 - 9:32:10 pm
34
    
 
DUN HAIPING
DIR
AS
$538,376
19,434
---
3/14/24
$27.56
$28.34
855,090
-2.2
D
10b
3/15/24 - 9:32:09 pm
35
1y
4
50%
-10%
1
CHEAV SOTHEARA
O
AS
$284,878
10,000
3/13/24
3/14/24
$27.49
$28.32
100,002
-9.1
D
10b
3/15/24 - 9:32:05 pm
36
    
 
DUN HAIPING
DIR
AS
$455,400
15,000
---
3/8/24
---
$30.36
874,524
-1.7
D
10b
3/12/24 - 9:30:41 pm
37
1y
3
67%
-7%
1
WANG DAVID H
DIR,BO
AS
$2,731,950
90,000
---
3/8/24
---
$30.35
591,107
-13.2
D
10b
3/12/24 - 9:30:30 pm
38
    
 
WANG DAVID H
DIR,BO
OS*
$90,008
2,911
---
3/1/24
---
$30.92
681,107
-0.4
D
---
3/5/24 - 9:33:15 pm
39
1y
4
75%
150%
1
WANG DAVID H
DIR,BO
OE*
$90,000
180,000
---
3/1/24
---
$0.50
684,018
35.7
D
---
3/5/24 - 9:33:15 pm
40
    
 
DUN HAIPING
DIR
OS*
$17,501
566
---
3/1/24
---
$30.92
889,524
-0.1
D
---
3/5/24 - 9:31:13 pm
41
    
 
DUN HAIPING
DIR
OE*
$17,500
35,000
---
3/1/24
---
$0.50
890,090
4.1
D
---
3/5/24 - 9:31:13 pm
42
    
 
FENG LISA
O
OS
$189,000
7,500
---
2/28/24
---
$25.20
50,001
-13.0
D
10b
3/1/24 - 9:32:56 pm
43
    
 
FENG LISA
O
OE
$42,000
7,500
---
2/28/24
---
$5.60
57,501
15.0
D
10b
3/1/24 - 9:32:56 pm
44
1y
3
100%
-31%
1
LIU TRACY
DIR
OS
$315,000
12,500
---
2/28/24
---
$25.20
110,772
-10.1
D
10b
3/1/24 - 9:30:28 pm
45
    
 
LIU TRACY
DIR
OE
$70,000
12,500
---
2/28/24
---
$5.60
123,272
11.3
D
10b
3/1/24 - 9:30:28 pm
46
    
 
MCKECHNIE MARK
O
OS
$220,000
10,000
---
1/12/24
---
$22.00
900
-91.7
D
10b
1/16/24 - 4:15:51 pm
47
    
 
MCKECHNIE MARK
O
OE
$45,500
10,000
---
1/12/24
---
$4.55
10,900
1,111.1
D
10b
1/16/24 - 4:15:51 pm
48
1y
3
100%
-31%
1
LIU TRACY
DIR
AS
$200,000
10,000
---
12/26/23
---
$20.00
110,772
-8.3
D
10b
12/28/23 - 9:02:13 pm
49
    
 
LIU TRACY
DIR
OE
$56,000
10,000
---
12/26/23
---
$5.60
120,772
9.0
D
10b
12/28/23 - 9:02:13 pm
50
    
 
FENG LISA
O
AS
$150,000
7,500
---
12/26/23
---
$20.00
50,001
-13.0
D
10b
12/28/23 - 9:00:24 pm
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