Executive and director filing history, acquisition and disposal balance, executive concentration, cadence, and stored market context.
Symbol
ACMRLatest filing 5 Jun 2026
Company Read
Net disposal
ACMR has 36 stored insider filings.
Acquisitions account for 19.4% of classified filings and disposals account for 80.6%.
The largest stored filing is $2.9M from WANG, DAVID H.
Latest filing
5 Jun 2026most recent stored row
Largest filing
$2.9Mreported transaction value
Total filings
36stored transaction rows
Acquisition value
$534.3K7 acquisitions
Disposal value
$11.0M29 disposals
Net value
$-10.5Macquisitions minus disposals
Filing cadence
Last 12 active months
Apr 20263
May 20267
Jun 202626
Acquisitions 19.4% · Disposals 80.6%
Apr 2026$405.9K
May 2026$359.1K
Jun 2026$10.8M
Executive concentration
By filing count
WANG, DAVID HDirector, See Remarks, 10% Owner · 16 filings
CHEAV, SOTHEARASee remarks · 11 filings
DUN, HAIPINGDirector · 6 filings
PAPPIS, CHARLES CDirector · 3 filings
Market Context
ACMR weekly market snapshot
Week 31 Jul 2026
Latest close
78.47 USDstored weekly close
1-week move
-6.9%latest weekly bar
13-week move
-19.7%medium-term context
Relative Strength
38.5Sharemaestro indicator
Fair value gap
+146.8%price vs fair value
Trend signal
1smoothed trend state
Transaction History
Latest insider filings for ACMR
Showing 1-30 of 36
Date
5 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
2384
Price
81.73
Value
194844
Security
Class A Common Stock
Date
5 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
1647
Price
85.41
Value
140670
Security
Class A Common Stock
Date
5 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
968
Price
82.61
Value
79966
Security
Class A Common Stock
Date
5 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Acquisition
Shares
5399
Price
13.89
Value
74992
Security
Class A Common Stock
Date
5 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
400
Price
84.01
Value
33604
Security
Class A Common Stock
Date
5 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
5399
Price
0.00
Value
0
Security
Stock Option
Date
4 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
17543
Price
85.11
Value
1493085
Security
Class A Common Stock
Date
4 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
10992
Price
86.07
Value
946081
Security
Class A Common Stock
Date
4 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
9212
Price
85.11
Value
784033
Security
Class A Common Stock
Date
4 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
8581
Price
87.13
Value
747663
Security
Class A Common Stock
Date
4 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
2839
Price
85.77
Value
243501
Security
Class A Common Stock
Date
4 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Acquisition
Shares
13351
Price
13.89
Value
185445
Security
Class A Common Stock
Date
4 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
2060
Price
83.86
Value
172752
Security
Class A Common Stock
Date
4 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
1300
Price
84.08
Value
109304
Security
Class A Common Stock
Date
4 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
826
Price
87.91
Value
72614
Security
Class A Common Stock
Date
4 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Acquisition
Shares
40002
Price
1.00
Value
40002
Security
Class A Common Stock
Date
4 Jun 2026
Insider
CHEAV, SOTHEARASee remarks
Side
Disposal
Shares
13351
Price
0.00
Value
0
Security
Stock Option
Date
4 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
40002
Price
0.00
Value
0
Security
Stock Option
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
32450
Price
89.84
Value
2915308
Security
Class A Common Stock
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
9925
Price
90.78
Value
900992
Security
Class A Common Stock
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
6295
Price
88.98
Value
560129
Security
Class A Common Stock
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
5843
Price
92.38
Value
539776
Security
Class A Common Stock
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
4300
Price
87.57
Value
376551
Security
Class A Common Stock
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
1187
Price
93.04
Value
110438
Security
Class A Common Stock
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Acquisition
Shares
60000
Price
1.00
Value
60000
Security
Class A Common Stock
Date
3 Jun 2026
Insider
WANG, DAVID HDirector, See Remarks, 10% Owner
Side
Disposal
Shares
60000
Price
0.00
Value
0
Security
Stock Option
Date
19 May 2026
Insider
DUN, HAIPINGDirector
Side
Disposal
Shares
1858
Price
67.54
Value
125489
Security
Class A Common Stock
Date
19 May 2026
Insider
DUN, HAIPINGDirector
Side
Disposal
Shares
1309
Price
67.21
Value
87978
Security
Class A Common Stock
Date
19 May 2026
Insider
DUN, HAIPINGDirector
Side
Disposal
Shares
1333
Price
63.84
Value
85099
Security
Class A Common Stock
Date
19 May 2026
Insider
DUN, HAIPINGDirector
Side
Disposal
Shares
500
Price
65.09
Value
32545
Security
Class A Common Stock
Plain English Guide
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