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

Haiping Dun is of ACM Research, Inc.. Currently has a direct ownership of 755,090 shares of ACMR, which is worth approximately $12.8 Million. The most recent transaction as insider was on May 22, 2023, when has been sold 37,500 shares (Class A Common Stock) at a price of $0.5 per share, resulting in proceeds of $18,750. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 755K

0% 3M change

11.69% 12M change

Total Value Held $12.8 Million

Haiping Dun Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
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
Aug 15 2022	SELL Payment of exercise price or tax liability	$18,769 $19.49 p/Share	963 Reduced 0.1%	928,146 Class A Common Stock
Aug 15 2022	BUY Exercise of conversion of derivative security	$18,750 $0.5 p/Share	37,500 Added 3.88%	929,109 Class A Common Stock
Aug 15 2022	BUY Open market or private sale	$704,086 $19.28 p/Share	36,519 Added 3.93%	891,627 Class A Common Stock
Aug 08 2022	SELL Payment of exercise price or tax liability	$18,767 $19.13 p/Share	981 Reduced 0.11%	891,609 Class A Common Stock
Aug 08 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
May 27 2022	SELL Open market or private sale	$542,250 $15.0 p/Share	36,150 Reduced 4.06%	855,090 Class A Common Stock
May 18 2022	SELL Payment of exercise price or tax liability	$18,752 $13.89 p/Share	1,350 Reduced 0.15%	891,240 Class A Common Stock
May 18 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
Mar 09 2022	SELL Open market or private sale	$1,002,991 $81.75 p/Share	12,269 Reduced 3.96%	297,299 Class A Common Stock
Mar 09 2022	BUY Exercise of conversion of derivative security	$18,404 $1.5 p/Share	12,269 Added 3.81%	309,568 Class A Common Stock
Mar 02 2022	SELL Payment of exercise price or tax liability	$18,817 $81.46 p/Share	231 Reduced 0.08%	297,299 Class A Common Stock
Mar 02 2022	BUY Exercise of conversion of derivative security	$18,750 $1.5 p/Share	12,500 Added 4.03%	297,530 Class A Common Stock

Haiping Dun

Fremont, CA

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