ACM Research
Insider trading & Transactions

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Transaction Date Insider Security Shares Price per share Total value Source
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $22.62 $1,017,900
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 41,090 $22.62 $929,456
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $22.81 $1,026,450
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $22.81 $1,026,450
Sale
DUN HAIPING director
 Class A Common Stock 15,000 $22.88 $343,200
Option
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 180,000 $0.5 $90,000
Option
DUN HAIPING director
 Class A Common Stock 35,000 $0.5 $17,500
Option
WANG DAVID H director, 10 percent owner, off..
 Stock Option 180,000 $0.5 $90,000
Option
DUN HAIPING director
 Stock Option 35,000 $0.5 $17,500
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 76,478 $27.51 $2,103,910
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 10,611 $28.38 $301,140
Sale
DUN HAIPING director
 Class A Common Stock 15,877 $27.56 $437,570
Sale
DUN HAIPING director
 Class A Common Stock 3,557 $28.34 $100,805
Sale
CHEAV SOTHEARA officer: See remarks
 Class A Common Stock 2,617 $27.49 $71,941
Sale
CHEAV SOTHEARA officer: See remarks
 Class A Common Stock 2,383 $28.32 $67,487
Sale
CHEAV SOTHEARA officer: See remarks
 Class A Common Stock 5,000 $29.09 $145,450
Sale
DUN HAIPING director
 Class A Common Stock 15,000 $30.36 $455,400
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $30.36 $1,366,200
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $30.35 $1,365,750
Option
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 180,000 $0.5 $90,000
Option
WANG DAVID H director, 10 percent owner, off..
 Stock Option 180,000 $0.5 $90,000
Option
DUN HAIPING director
 Class A Common Stock 35,000 $0.5 $17,500
Option
DUN HAIPING director
 Stock Option 35,000 $0.5 $17,500
Option
FENG LISA officer: See remarks
 Stock Option 7,500 $5.6 $42,000
Option
FENG LISA officer: See remarks
 Class A Common Stock 7,500 $5.6 $42,000
Sale
FENG LISA officer: See remarks
 Class A Common Stock 7,500 $25.2 $189,000
Option
LIU TRACY director
 Class A Common Stock 12,500 $5.6 $70,000
Sale
LIU TRACY director
 Class A Common Stock 12,500 $25.2 $315,000
Option
LIU TRACY director
 Stock Option 12,500 $5.6 $70,000
Option
MCKECHNIE MARK officer: See Remarks
 Class A Common Stock 10,000 $4.55 $45,500
Option
MCKECHNIE MARK officer: See Remarks
 Stock Option 10,000 $4.55 $45,500
Sale
MCKECHNIE MARK officer: See Remarks
 Class A Common Stock 10,000 $22 $220,000
Option
LIU TRACY director
 Class A Common Stock 10,000 $5.6 $56,000
Sale
LIU TRACY director
 Class A Common Stock 10,000 $20 $200,000
Option
LIU TRACY director
 Stock Option 10,000 $5.6 $56,000
Option
FENG LISA officer: See remarks
 Stock Option 7,500 $5.6 $42,000
Option
FENG LISA officer: See remarks
 Class A Common Stock 7,500 $5.6 $42,000
Sale
FENG LISA officer: See remarks
 Class A Common Stock 7,500 $20 $150,000
Sale
DUN HAIPING director
 Class A Common Stock 18,984 $17.25 $327,474
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $17.14 $771,300
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 39,776 $17.13 $681,363
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $17.67 $795,150
Sale
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 45,000 $17.68 $795,600
Sale
DUN HAIPING director
 Class A Common Stock 15,000 $17.66 $264,900
Option
LIU TRACY director
 Class A Common Stock 15,000 $7.36 $110,400
Sale
LIU TRACY director
 Class A Common Stock 15,000 $17.91 $268,650
Option
LIU TRACY director
 Stock Option 15,000 $7.36 $110,400
Option
DUN HAIPING director
 Stock Option 35,000 $0.5 $17,500
Option
WANG DAVID H director, 10 percent owner, off..
 Stock Option 180,000 $0.5 $90,000
Option
WANG DAVID H director, 10 percent owner, off..
 Class A Common Stock 180,000 $0.5 $90,000

Showing 50 to 100 of 302 results.

Insider trading

Monitoring trades made by the management members or major shareholders of companies may help create a sharper picture of what is happening inside the companies. Base your decisions on buys or sells of the people involved and do the right thing at the right time.

Who is insider?

Every director or senior officer, as well as any other entity or individual owning more than 10% of the company’s shares on the stock market, is called an insider. Such people or entities are allowed to buy/sell the company's shares under strictly controlled conditions. Key premise here is that none of them can make trades based on non-public information about the company.

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