Haiping Dun Acm Research, Inc. (ACMR) insider trading activity

Haiping Dun is of ACM Research, Inc.. Currently has a direct ownership of 855,090 shares of ACMR, which is worth approximately $19.7 Million. The most recent transaction as insider was on May 29, 2024, when has been sold 19,239 shares (Class A Common Stock) at a price of $22.63 per share, resulting in proceeds of $435,378. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 855K

0% 3M change

3.62% 12M change

Total Value Held $19.7 Million

Haiping Dun Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
May 29 2024	SELL Open market or private sale	$435,378 $22.63 p/Share	19,239 Reduced 2.2%	855,090 Class A Common Stock
May 22 2024	SELL Open market or private sale	$343,200 $22.88 p/Share	15,000 Reduced 1.69%	874,329 Class A Common Stock
May 14 2024	SELL Payment of exercise price or tax liability	$17,518 $23.02 p/Share	761 Reduced 0.09%	889,329 Class A Common Stock
May 14 2024	BUY Exercise of conversion of derivative security	$17,500 $0.5 p/Share	35,000 Added 3.78%	890,090 Class A Common Stock
Mar 14 2024	SELL Open market or private sale	$543,180 $27.95 p/Share	19,434 Reduced 2.22%	855,090 Class A Common Stock
Mar 08 2024	SELL Open market or private sale	$455,400 $30.36 p/Share	15,000 Reduced 1.69%	874,524 Class A Common Stock
Mar 01 2024	SELL Payment of exercise price or tax liability	$17,500 $30.92 p/Share	566 Reduced 0.06%	889,524 Class A Common Stock

Mar 01 2024	BUY Exercise of conversion of derivative security	$17,500 $0.5 p/Share	35,000 Added 3.78%	890,090 Class A Common Stock
Nov 29 2023	SELL Open market or private sale	$327,474 $17.25 p/Share	18,984 Reduced 2.17%	855,090 Class A Common Stock
Nov 22 2023	SELL Open market or private sale	$264,900 $17.66 p/Share	15,000 Reduced 1.69%	874,074 Class A Common Stock
Nov 14 2023	SELL Payment of exercise price or tax liability	$17,505 $17.23 p/Share	1,016 Reduced 0.11%	889,074 Class A Common Stock
Nov 14 2023	BUY Exercise of conversion of derivative security	$17,500 $0.5 p/Share	35,000 Added 3.78%	890,090 Class A Common Stock
Aug 22 2023	SELL Open market or private sale	$444,557 $13.85 p/Share	32,098 Reduced 3.62%	855,090 Class A Common Stock
Jun 01 2023	SELL Open market or private sale	$375,000 $10.0 p/Share	37,500 Reduced 4.06%	887,188 Class A Common Stock
May 22 2023	SELL Payment of exercise price or tax liability	$18,759 $9.73 p/Share	1,928 Reduced 0.21%	924,688 Class A Common Stock
May 22 2023	BUY Exercise of conversion of derivative security	$18,750 $0.5 p/Share	37,500 Added 3.89%	926,616 Class A Common Stock
Mar 16 2023	SELL Open market or private sale	$452,250 $12.06 p/Share	37,500 Reduced 4.05%	889,116 Class A Common Stock
Mar 09 2023	SELL Payment of exercise price or tax liability	$18,754 $12.47 p/Share	1,504 Reduced 0.16%	926,616 Class A Common Stock
Mar 09 2023	BUY Exercise of conversion of derivative security	$18,750 $0.5 p/Share	37,500 Added 3.88%	928,120 Class A Common Stock
Nov 30 2022	SELL Open market or private sale	$297,806 $8.43 p/Share	35,327 Reduced 3.82%	890,620 Class A Common Stock
Nov 22 2022	SELL Payment of exercise price or tax liability	$18,752 $8.63 p/Share	2,173 Reduced 0.23%	925,947 Class A Common Stock
Nov 22 2022	BUY Exercise of conversion of derivative security	$18,750 $0.5 p/Share	37,500 Added 3.88%	928,120 Class A Common Stock
Nov 14 2022	SELL Payment of exercise price or tax liability	$18,754 $9.52 p/Share	1,970 Reduced 0.22%	890,620 Class A Common Stock
Nov 14 2022	BUY Exercise of conversion of derivative security	$18,750 $0.5 p/Share	37,500 Added 4.03%	892,590 Class A Common Stock
Aug 22 2022	SELL Open market or private sale	$588,246 $16.1 p/Share	36,537 Reduced 4.1%	855,090 Class A Common Stock

Haiping Dun

Fremont, CA

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