ACM Research Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of ACMR?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	11,858	0.0191%
VC/PE Firms	6,797,238	11%
Individual Insiders	7,692,402	12.4%
General Public	13,741,159	22.2%
Institutions	33,765,931	54.5%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 3.6%.

Top Shareholders

Top 25 shareholders own 58.53% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
9.06%	Hui Wang	5,616,666	US$140.0m	0%	no data
6.54%	The Vanguard Group, Inc.	4,057,397	US$101.1m	-0.62%	no data
6.01%	BlackRock, Inc.	3,725,525	US$92.8m	7.78%	no data
5.55%	Shanghai Technology Venture Capital Investment Co., Ltd.	3,438,510	US$85.7m	0%	no data
5.42%	Shanghai Pudong Science and Technology Investment Co., Ltd.	3,358,728	US$83.7m	0%	17.76%
3.15%	Bank of America Corporation, Asset Management Arm	1,955,612	US$48.7m	-5.98%	0.02%
2.8%	Citigroup Inc.,Banking and Securities Investments	1,736,596	US$43.3m	-1.64%	0.04%
1.86%	Haiping Dun	1,155,090	US$28.8m	0%	no data
1.75%	Pertento Partners LLP	1,085,033	US$27.0m	-9.24%	5.56%
1.71%	Pan View Capital Limited	1,057,753	US$26.4m	265%	15.86%
1.68%	State Street Global Advisors, Inc.	1,044,631	US$26.0m	6.14%	no data
1.68%	Geode Capital Management, LLC	1,039,783	US$25.9m	5.51%	no data
1.29%	Portolan Capital Management, LLC	799,504	US$19.9m	0%	1.58%
1.12%	JP Morgan Asset Management	691,848	US$17.2m	-28.7%	no data
1.07%	Voloridge Investment Management, LLC	665,214	US$16.6m	-2.53%	0.07%
0.99%	UBS Asset Management AG	614,994	US$15.3m	4.47%	no data
0.98%	Goldman Sachs Group, Investment Banking and Securities Investments	604,673	US$15.1m	-1.89%	0.01%
0.85%	Point72 Asset Management, L.P.	529,022	US$13.2m	-8.32%	0.03%
0.83%	Yiheng Capital Management, L.P.	512,700	US$12.8m	0%	1.56%
0.79%	Morgan Stanley, Investment Banking and Brokerage Investments	487,374	US$12.1m	16.7%	no data
0.75%	Northern Trust Global Investments	467,546	US$11.7m	-1.96%	no data
0.71%	Prelude Capital Management, LLC	442,190	US$11.0m	0%	1.05%
0.67%	Think Investments LP	417,500	US$10.4m	0%	1.72%
0.64%	Jian Wang	395,661	US$9.9m	0%	no data
0.63%	Oberweis Asset Management, Inc.	393,400	US$9.8m	15.1%	0.56%